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You searched for: Journal name Plant physiology Remove constraint Journal name: Plant physiology Subject term esters Remove constraint Subject term: esters
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1. Structural and Biochemical Characterization of Cinnamoyl-CoA Reductases

Author:
Steven A. Sattler; Alexander M. Walker; Wilfred Vermerris; Scott E. Sattler; ChulHee Kang
Source:
Plant physiology 2017 v.173 no.2 pp. 1031-1044
ISSN:
0032-0889
Subject:
NADP (coenzyme); Sorghum bicolor; Vitis vinifera; aldehydes; bioenergy; cinnamoyl-CoA reductase; crystal structure; esters; genes; lignin; molecular models; phenylpropanoids; site-directed mutagenesis; substrate specificity; thermodynamics
Abstract:
... Cinnamoyl-coenzyme A reductase (CCR) catalyzes the reduction of hydroxycinnamoyl-coenzyme A (CoA) esters using NADPH to produce hydroxycinnamyl aldehyde precursors in lignin synthesis. The catalytic mechanism and substrate specificity of cinnamoyl-CoA reductases from sorghum (Sorghum bicolor), a strategic plant for bioenergy production, were deduced from crystal structures, site-directed mutagenes ...
Handle:
10113/5763102
DOI:
10.1104/pp.16.01671
PubMed:
27956488
PubMed Central:
PMC5291045
CHORUS:
10.1104/pp.16.01671
Chorus Open Access:
10.1104/pp.16.01671

2. Identification of an Arabidopsis Fatty Alcohol:Caffeoyl-Coenzyme A Acyltransferase Required for the Synthesis of Alkyl Hydroxycinnamates in Root Waxes

Author:
Dylan K. Kosma; Isabel Molina; John B. Ohlrogge; Mike Pollard
Source:
Plant physiology 2012 v.160 no.1 pp. 237-248
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; acyl coenzyme A; acyltransferases; chloroform; coumaric acids; dipping; esters; fatty alcohols; genes; knockout mutants; roots; suberin; suberization; tissues; transcription (genetics); transgenic plants; waxes
Abstract:
... While suberin is an insoluble heteropolymer, a number of soluble lipids can be extracted by rapid chloroform dipping of roots. These extracts include esters of saturated long-chain primary alcohols and hydroxycinnamic acids. Such fatty alcohols and hydroxycinnamic acids are also present in suberin. We demonstrate that alkyl coumarates and caffeates, which are the major components of Arabidopsis (A ...
DOI:
10.1104/pp.112.201822
PubMed:
22797656
PubMed Central:
PMC3440202

3. Action of Natural Abscisic Acid Precursors and Catabolites on Abscisic Acid Receptor Complexes

Author:
Michal Kepka; Chantel L. Benson; Vijay K. Gonugunta; Ken M. Nelson; Alexander Christmann; Erwin Grill; Suzanne R. Abrams
Source:
Plant physiology 2011 v.157 no.4 pp. 2108-2119
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; abscisic acid; biosynthesis; biotransformation; esters; germination; glucose; hormones; metabolites; mutants; phosphoprotein phosphatase; receptors; stress response
Abstract:
... The phytohormone abscisic acid (ABA) regulates stress responses and controls numerous aspects of plant growth and development. Biosynthetic precursors and catabolites of ABA have been shown to trigger ABA responses in physiological assays, but it is not clear whether these are intrinsically active or whether they are converted into ABA in planta. In this study, we analyzed the effect of ABA precur ...
DOI:
10.1104/pp.111.182584
PubMed:
21976481
PubMed Central:
PMC3327214

4. Overexpression of Arabidopsis ACBP3 Enhances NPR1-Dependent Plant Resistance to Pseudomonas syringe pv tomato DC3000

Author:
Xiao, Shi; Chye, Mee-Len
Source:
Plant physiology 2011 v.156 no.4 pp. 2069-2081
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; Botrytis cinerea; Pseudomonas syringae pv. tomato; bioinformatics; cell death; esters; fungi; gene expression; genes; homeostasis; hydrogen peroxide; leaves; messenger RNA; mutants; pathogens; plant hormones; plant response; proteins; stress tolerance; transfer DNA
Abstract:
... ACBP3 is one of six Arabidopsis (Arabidopsis thaliana) genes, designated ACBP1 to ACBP6, that encode acyl-coenzyme A (CoA)-binding proteins (ACBPs). These ACBPs bind long-chain acyl-CoA esters and phospholipids and are involved in diverse cellular functions, including acyl-CoA homeostasis, development, and stress tolerance. Recombinant ACBP3 binds polyunsaturated acyl-CoA esters and phospholipids ...
DOI:
10.1104/pp.111.176933
PubMed:
21670223
PubMed Central:
PMC3149925

5. Porphyrin Biosynthesis Control under Water Stress: Sustained Porphyrin Status Correlates with Drought Tolerance in Transgenic Rice

Author:
Thu-Ha Phung; Ha-il Jung; Joon-Heum Park; Jin-Gil Kim; Kyoungwhan Back; Sunyo Jung
Source:
Plant physiology 2011 v.157 no.4 pp. 1746-1764
ISSN:
0032-0889
Subject:
Myxococcus xanthus; Oryza sativa; aerobiosis; biosynthesis; chlorophyll; cytotoxicity; drought tolerance; enzyme activity; esters; heme; leaves; metabolites; oxygen; plant protection; protoporphyrin; rice; shoots; stress response; transgenic plants; water potential; water stress
Abstract:
... A controlled flow of porphyrin metabolites is critical for organisms, but little is known about the control of porphyrin biosynthesis under environmental stress. We monitored transgenic rice (Oryza sativa) plants expressing Myxococcus xanthus protoporphyrinogen oxidase (PPO) for their response to drought stress. Transgenic plants showed significantly improved drought tolerance, as indicated by a h ...
DOI:
10.1104/pp.111.188276
PubMed:
22021420
PubMed Central:
PMC3327219

6. Reactive Oxygen Species and Nitric Oxide Mediate Actin Reorganization and Programmed Cell Death in the Self-Incompatibility Response of Papaver

Author:
Wilkins, Katie A.; Bancroft, James; Bosch, Maurice; Ings, Jennifer; Smirnoff, Nicholas; Franklin-Tong, Vernonica E.
Source:
Plant physiology 2011 v.156 no.1 pp. 404-416
ISSN:
0032-0889
Subject:
Papaver rhoeas; actin; cell death; esters; image analysis; inbreeding; nitric oxide; pollen tubes; pollination; reactive oxygen species; selfing
Abstract:
... Pollen-pistil interactions are critical early events regulating pollination and fertilization. Self-incompatibility (SI) is an important mechanism to prevent self-fertilization and inbreeding in higher plants. Although data implicate the involvement of reactive oxygen species (ROS) and nitric oxide (NO) in pollen-pistil interactions and the regulation of pollen tube growth, there has been a lack o ...
DOI:
10.1104/pp.110.167510
PubMed:
21386034
PubMed Central:
PMC3091060

7. Red Clover HCT2, a Hydroxycinnamoyl-Coenzyme A:Malate Hydroxycinnamoyl Transferase, Plays a Crucial Role in Biosynthesis of Phaselic Acid and Other Hydroxycinnamoyl-Malate Esters in Vivo

Author:
Michael L. Sullivan; Robert Zarnowski
Source:
Plant physiology 2011 v.155 no.3 pp. 1060-1067
ISSN:
1532-2548
Subject:
RNA interference; Trifolium pratense; biosynthesis; coenzyme A; enzyme kinetics; enzymes; esters; fluorescence; forage crops; genes; leaves; malic acid; messenger RNA; phenotype; proteins; ultraviolet radiation
Abstract:
... In red clover (Trifolium pratense) leaves, phaselic acid (2-O-caffeoyl-l-malate) accumulates to several mmol kg−1 fresh weight and is a crucial component of a natural system that prevents protein breakdown during harvest and storage of this forage crop. Previously, we identified HCT2, a red clover gene encoding a hydroxycinnamoyl-Coenzyme A (CoA) hydroxycinnamoyl transferase capable of transferrin ...
Handle:
10113/56729
DOI:
10.​1104/​pp.​110.​166793

8. Red Clover HCT2, a Hydroxycinnamoyl-Coenzyme A:Malate Hydroxycinnamoyl Transferase, Plays a Crucial Role in Biosynthesis of Phaselic Acid and Other Hydroxycinnamoyl-Malate Esters in Vivo

Author:
Sullivan, Michael L.; Zarnowski, Robert
Source:
Plant physiology 2011 v.155 no.3 pp. 1060-1067
ISSN:
0032-0889
Subject:
RNA interference; Trifolium pratense; biosynthesis; enzymes; esters; fluorescence; forage crops; genes; leaves; malic acid; messenger RNA; phenotype; proteins; ultraviolet radiation
Abstract:
... In red clover (Trifolium pratense) leaves, phaselic acid (2-O-caffeoyl-L-malate) accumulates to several mmol kg⁻¹ fresh weight and is a crucial component of a natural system that prevents protein breakdown during harvest and storage of this forage crop. Previously, we identified HCT2, a red clover gene encoding a hydroxycinnamoyl-Coenzyme A (CoA) hydroxycinnamoyl transferase capable of transferrin ...
DOI:
10.1104/pp.110.166793
PubMed:
21205620
PubMed Central:
PMC3046568

9. Endogenous Diterpenes Derived from ent-Kaurene, a Common Gibberellin Precursor, Regulate Protonema Differentiation of the Moss Physcomitrella patens

Author:
Hayashi, Ken-ichiro; Horie, Keisuke; Hiwatashi, Yuji; Kawaide, Hiroshi; Yamaguchi, Shinjiro; Hanada, Atsushi; Nakashima, Tamotsu; Nakajima, Masatoshi; Mander, Lewis N.; Yamane, Hisakazu; Hasebe, Mitsuyasu; Nozaki, Hiroshi
Source:
Plant physiology 2010 v.153 no.3 pp. 1085-1097
ISSN:
0032-0889
Subject:
biosynthesis; phenotype; Physcomitrella patens; plant hormones; evolution; uniconazole; acids; mosses and liverworts; receptors; gibberellins; diterpenoids; Selaginella; esters; ferns and fern allies; mutants; Angiospermae; spectroscopy
Abstract:
... Gibberellins (GAs) are a group of diterpene-type plant hormones biosynthesized from ent-kaurene via ent-kaurenoic acid. GAs are ubiquitously present in seed plants. The GA signal is perceived and transduced by the GID1 GA receptor/DELLA repressor pathway. The lycopod Selaginella moellendorffii biosynthesizes GA and has functional GID1-DELLA signaling components. In contrast, no GAs or functionally ...
DOI:
10.1104/pp.110.157909
PubMed:
20488896
PubMed Central:
PMC2899919

10. The Laforin-Like Dual-Specificity Phosphatase SEX4 from Arabidopsis Hydrolyzes Both C6- and C3-Phosphate Esters Introduced by Starch-Related Dikinases and Thereby Affects Phase Transition of α-Glucans

Author:
Hejazi, Mahdi; Fettke, Joerg; Kötting, Oliver; Zeeman, Samuel C.; Steup, Martin
Source:
Plant physiology 2010 v.152 no.2 pp. 711-722
ISSN:
0032-0889
Subject:
Arabidopsis; carbon; dephosphorylation; esters; heat treatment; maltodextrins; phase transition; phosphates; protein-tyrosine-phosphatase; starch granules
Abstract:
... The biochemical function of the Laforin-like dual-specific phosphatase AtSEX4 (EC 3.1.3.48) has been studied. Crystalline maltodextrins representing the A- or the B-type allomorph were prephosphorylated using recombinant glucan, water dikinase (StGWD) or the successive action of both plastidial dikinases (StGWD and AtPWD). AtSEX4 hydrolyzed carbon 6-phosphate esters from both the prephosphorylated ...
DOI:
10.1104/pp.109.149914
PubMed:
20018599
PubMed Central:
PMC2815871

11. Nitric Oxide Acts Downstream of Auxin to Trigger Root Ferric-Chelate Reductase Activity in Response to Iron Deficiency in Arabidopsis

Author:
Chen, Wei Wei; Yang, Jian Li; Qin, Cheng; Jin, Chong Wei; Mo, Ji Hao; Ye, Ting; Zheng, Shao Jian
Source:
Plant physiology 2010 v.154 no.2 pp. 810-819
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; acids; auxins; basic helix-loop-helix transcription factors; esters; gene expression; genes; mutants; nitric oxide; plasma membrane; roots
Abstract:
... In response to iron (Fe) deficiency, dicots employ a reduction-based mechanism by inducing ferric-chelate reductase (FCR) at the root plasma membrane to enhance Fe uptake. However, the signal pathway leading to FCR induction is still unclear. Here, we found that the Fe-deficiency-induced increase of auxin and nitric oxide (NO) levels in wild-type Arabidopsis (Arabidopsis thaliana) was accompanied ...
DOI:
10.1104/pp.110.161109
PubMed:
20699398
PubMed Central:
PMC2948983

12. Nitric Oxide Is Associated with Long-Term Zinc Tolerance in Solanum nigrum

Author:
Xu, Jin; Yin, Hengxia; Li, Yulong; Liu, Xiaojing
Source:
Plant physiology 2010 v.154 no.3 pp. 1319-1334
ISSN:
0032-0889
Subject:
Solanum nigrum; cadmium; cell death; enzyme activity; esters; heavy metals; homeostasis; hydrogen peroxide; nitric oxide; root growth; root systems; root tips; seedlings; toxicity; zinc
Abstract:
... Nitric oxide (NO) has been identified as a signal molecule that interplays with reactive oxygen species in response to heavy metal stresses. Roles of NO in regulating cadmium toxicity and iron deficiency have been proposed; however, the function of NO in zinc (Zn) tolerance in plants remains unclear. Here, we investigated NO accumulation and its role in plant Zn tolerance. Zn-induced NO production ...
DOI:
10.1104/pp.110.162982
PubMed:
20855519
PubMed Central:
PMC2971609

13. The Cyclization of the 3,6-Anhydro-Galactose Ring of ι-Carrageenan Is Catalyzed by Two D-Galactose-2,6-Sulfurylases in the Red Alga Chondrus crispus

Author:
Genicot-Joncour, Sabine; Poinas, Alexandra; Richard, Odile; Potin, Philippe; Rudolph, Brian; Kloareg, Bernard; Helbert, William
Source:
Plant physiology 2009 v.151 no.3 pp. 1609-1616
ISSN:
0032-0889
Subject:
Chondrus crispus; biosynthesis; carrageenan; cell walls; esters; macroalgae; mechanism of action; sulfate adenylyltransferase; sulfates; viscosity
Abstract:
... Carrageenans are sulfated galactans found in the cell walls of numerous red seaweeds (Rhodophyta). They are classified according to the number and the position of sulfate ester groups and the occurrence of 3,6-anhydro-galactose. Although the carrageenan biosynthesis pathway is not fully understood, it is usually accepted that the last step consists of the formation of a 3,6-anhydro ring found in κ ...
DOI:
10.1104/pp.109.144329
PubMed:
19734263
PubMed Central:
PMC2773109

14. Evidence for Unidirectional Flow through Plasmodesmata

Author:
Christensen, Nynne Meyn; Faulkner, Christine; Oparka, Karl
Source:
Plant physiology 2009 v.150 no.1 pp. 96-104
ISSN:
0032-0889
Subject:
green fluorescent protein; plasmodesmata; sodium azide; mass flow; transgenic plants; trichomes; solutes; gene expression; viruses; Nicotiana tabacum; esters; tobacco; metabolic inhibitors; fluorescein; leaves
Abstract:
... The leaf trichome of tobacco (Nicotiana tabacum) represents a unique secretory structure in which the basal trichome cell is connected to the epidermis by numerous plasmodesmata (PD). Small fluorescent probes microinjected into the basal trichome cell moved apically into distal trichome cells but not into the subtending epidermal cell. In marked contrast, the same probes moved apically into tricho ...
DOI:
10.1104/pp.109.137083
PubMed:
19270059
PubMed Central:
PMC2675744

15. The Magnesium-Chelatase H Subunit Binds Abscisic Acid and Functions in Abscisic Acid Signaling: New Evidence in Arabidopsis

Author:
Wu, Fu-Qing; Xin, Qi; Cao, Zheng; Liu, Zhi-Qiang; Du, Shu-Yuan; Mei, Chao; Zhao, Chen-Xi; Wang, Xiao-Fang; Shang, Yi; Jiang, Tao; Zhang, Xiao-Feng; Yan, Lu; Zhao, Rui; Cui, Zi-Ning; Liu, Rui; Sun, Hai-Li; Yang, Xin-Ling; Su, Zhen; Zhang, Da-Peng
Source:
Plant physiology 2009 v.150 no.4 pp. 1940-1954
ISSN:
0032-0889
Subject:
seedling growth; alleles; chromatography; receptors; phenotype; jasmonic acid; amino acids; esters; naphthaleneacetic acid; Arabidopsis thaliana; magnesium chelatase; stomatal movement; antagonists; indole acetic acid; seed germination; green fluorescent protein; hypersensitivity; mutants; abscisic acid; agonists; point mutation
Abstract:
... Using a newly developed abscisic acid (ABA)-affinity chromatography technique, we showed that the magnesium-chelatase H subunit ABAR/CHLH (for putative abscisic acid receptor/chelatase H subunit) specifically binds ABA through the C-terminal half but not the N-terminal half. A set of potential agonists/antagonists to ABA, including 2-trans,4-trans-ABA, gibberellin, cytokinin-like regulator 6-benzy ...
DOI:
10.1104/pp.109.140731
PubMed:
19535472

16. A Novel Red Clover Hydroxycinnamoyl Transferase Has Enzymatic Activities Consistent with a Role in Phaselic Acid Biosynthesis

Author:
Sullivan, MichaelL.
Source:
Plant physiology 2009 v.150 no.4 pp. 1866-1879
ISSN:
0032-0889
Subject:
Escherichia coli; Medicago sativa; Trifolium pratense; acids; alfalfa; amino acid sequences; amino acids; biosynthesis; catechol oxidase; enzyme activity; esters; forage crops; genes; leaves; messenger RNA; nitrogen; oxidation; sequence analysis; stems; storage proteins
Abstract:
... Red clover (Trifolium pratense) leaves accumulate several μmol g⁻¹ fresh weight of phaselic acid [2-O-(caffeoyl)-L-malate]. Postharvest oxidation of such o-diphenols to o-quinones by endogenous polyphenol oxidases prevents breakdown of forage protein during storage. Forage crops like alfalfa (Medicago sativa) lack both polyphenol oxidase and o-diphenols, and breakdown of their protein upon harvest ...
DOI:
10.1104/pp.109.136689
PubMed:
19525325

17. Metabolome Analysis of Biosynthetic Mutants Reveals a Diversity of Metabolic Changes and Allows Identification of a Large Number of New Compounds in Arabidopsis

Author:
Böttcher, Christoph; von Roepenack-Lahaye, Edda; Schmidt, Jürgen; Schmotz, Constanze; Neumann, Steffen; Scheel, Dierk; Clemens, Stephan
Source:
Plant physiology 2008 v.147 no.4 pp. 2107-2120
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; biosynthesis; chalcone isomerase; choline; esters; metabolites; metabolomics; mutants; naringenin-chalcone synthase; seeds
Abstract:
... Metabolomics is facing a major challenge: the lack of knowledge about metabolites present in a given biological system. Thus, large-scale discovery of metabolites is considered an essential step toward a better understanding of plant metabolism. We show here that the application of a metabolomics approach generating structural information for the analysis of Arabidopsis (Arabidopsis thaliana) muta ...
DOI:
10.1104/pp.108.117754
PubMed:
18552234
PubMed Central:
PMC2492617

18. Nitric Oxide Interacts with Salicylate to Regulate Biphasic Ethylene Production during the Hypersensitive Response

Author:
Mur, Luis A.J.; Laarhoven, Lucas J.J.; Harren, Frans J.M.; Hall, Michael A.; Smith, Aileen R.
Source:
Plant physiology 2008 v.148 no.3 pp. 1537-1546
ISSN:
0032-0889
Subject:
biosynthesis; tobacco; lasers; nitric oxide; avirulent strains; oxidative stress; systemic acquired resistance; ethylene production; Pseudomonas syringae; Nicotiana tabacum; esters; genes; leaves; salicylic acid; sodium; hypersensitive response; aminoethoxyvinylglycine
Abstract:
... C₂H₄ is associated with plant defense, but its role during the hypersensitive response (HR) remains largely uncharacterized. C₂H₄ production in tobacco (Nicotiana tabacum) following inoculation with HR-eliciting Pseudomonas syringae pathovars measured by laser photoacoustic detection was biphasic. A first transient rise (C₂H₄-I) occurred 1 to 4 h following inoculation with HR-eliciting, disease-fo ...
DOI:
10.1104/pp.108.124404
PubMed:
18799663
PubMed Central:
PMC2577248

19. Pectin Methyl Esterase Inhibits Intrusive and Symplastic Cell Growth in Developing Wood Cells of Populus

Author:
Siedlecka, Anna; Wiklund, Susanne; Péronne, Marie-Amélie; Micheli, Fabienne; Leśniewska, Joanna; Sethson, Ingmar; Edlund, Ulf; Richard, Luc; Sundberg, Björn; Mellerowicz, Ewa J.
Source:
Plant physiology 2008 v.146 no.2 pp. 554-565
ISSN:
0032-0889
Subject:
Populus tremula; antibodies; cell growth; epitopes; esters; hybrids; nuclear magnetic resonance spectroscopy; pectinesterase; pectins; trees; wood; xylem vessels
Abstract:
... Wood cells, unlike most other cells in plants, grow by a unique combination of intrusive and symplastic growth. Fibers grow in diameter by diffuse symplastic growth, but they elongate solely by intrusive apical growth penetrating the pectin-rich middle lamella that cements neighboring cells together. In contrast, vessel elements grow in diameter by a combination of intrusive and symplastic growth. ...
DOI:
10.1104/pp.107.111963
PubMed:
18065553
PubMed Central:
PMC2245829

20. A Genomics Approach Reveals That Aroma Production in Apple Is Controlled by Ethylene Predominantly at the Final Step in Each Biosynthetic Pathway

Author:
Schaffer, Robert J.; Friel, Ellen N.; Souleyre, Edwige J.F.; Bolitho, Karen; Thodey, Kate; Ledger, Susan; Bowen, Judith H.; Ma, Jun-Hong; Nain, Bhawana; Cohen, Daniel; Gleave, Andrew P.; Crowhurst, Ross N.; Janssen, Bart J.; Yao, Jia-Long; Newcomb, Richard D.
Source:
Plant physiology 2007 v.144 no.4 pp. 1899-1912
ISSN:
0032-0889
Subject:
crop production; ethylene; volatile compounds; biosynthesis; apples; fruits; aminocyclopropanecarboxylate oxidase; microarray technology; expressed sequence tags; biochemical pathways; gene expression; esters; genomics; Malus domestica; odors; gene expression regulation; databases
Abstract:
... Ethylene is the major effector of ripening in many fleshy fruits. In apples (Malus x domestica) the addition of ethylene causes a climacteric burst of respiration, an increase in aroma, and softening of the flesh. We have generated a transgenic line of 'Royal Gala' apple that produces no detectable levels of ethylene using antisense ACC OXIDASE, resulting in apples with no ethylene-induced ripenin ...
DOI:
10.1104/pp.106.093765
PubMed:
17556515
PubMed Central:
PMC1949883

21. Maize Brittle stalk2 Encodes a COBRA-Like Protein Expressed in Early Organ Development But Required for Tissue Flexibility at Maturity

Author:
Sindhu, Anoop; Langewisch, Tiffany; Olek, Anna; Multani, Dilbag S.; McCann, Maureen C.; Vermerris, Wilfred; Carpita, Nicholas C.; Johal, Gurmukh
Source:
Plant physiology 2007 v.145 no.4 pp. 1444-1459
ISSN:
0032-0889
Subject:
Oryza sativa; genes; tensile strength; siblings; phenotype; early development; cellulose; esters; leaves; Arabidopsis thaliana; Zea mays; corn; aerial parts; molecular cloning; rice protein; lignin; vascular bundles; biosynthesis; internodes; mutants
Abstract:
... The maize (Zea mays) brittle stalk2 (bk2) is a recessive mutant, the aerial parts of which are easily broken. The bk2 phenotype is developmentally regulated and appears 4 weeks after planting, at about the fifth-leaf stage. Before this time, mutants are indistinguishable from wild-type siblings. Afterward, all organs of the bk2 mutants turn brittle, even the preexisting ones, and they remain britt ...
DOI:
10.1104/pp.107.102582
PubMed:
17932309
PubMed Central:
PMC2151699

22. Oxo-Phytodienoic Acid-Containing Galactolipids in Arabidopsis: Jasmonate Signaling Dependence

Author:
Kourtchenko, Olga; Andersson, Mats X.; Hamberg, Mats; Brunnström, Åsa; Göbel, Cornelia; McPhail, Kerry L.; Gerwick, William H.; Feussner, Ivo; Ellerström, Mats
Source:
Plant physiology 2007 v.145 no.4 pp. 1658-1669
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; Botrytis cinerea; bacterial proteins; esters; galactolipids; hypersensitive response; jasmonic acid; microbial growth; stress response
Abstract:
... The jasmonate family of phytohormones, as represented by 12-oxo-phytodienoic acid (OPDA), dinor-phytodienoic acid (dn-OPDA), and jasmonic acid in Arabidopsis (Arabidopsis thaliana), has been implicated in a vast array of different developmental processes and stress responses. Recent reports indicate that OPDA and dn-OPDA occur not only as free acids in Arabidopsis, but also as esters with complex ...
DOI:
10.1104/pp.107.104752
PubMed:
17951463
PubMed Central:
PMC2151682

23. Related Arabidopsis Serine Carboxypeptidase-Like Sinapoylglucose Acyltransferases Display Distinct But Overlapping Substrate Specificities

Author:
Fraser, Christopher M.; Thompson, Michael G.; Shirley, Amber M.; Ralph, John; Schoenherr, Jessica A.; Sinlapadech, Taksina; Hall, Mark C.; Chapple, Clint
Source:
Plant physiology 2007 v.144 no.4 pp. 1986-1999
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; metabolism; serine; glucose; sinapic acid; carboxypeptidases; genes; esters; structure-activity relationships; enzyme substrates; enzyme activity; gene expression regulation; acyltransferases
Abstract:
... The Arabidopsis (Arabidopsis thaliana) genome encodes 51 proteins annotated as serine carboxypeptidase-like (SCPL) enzymes. Nineteen of these SCPL proteins are highly similar to one another, and represent a clade that appears to be unique to plants. Two of the most divergent proteins within this group have been characterized to date, sinapoyl-glucose (Glc):malate sinapoyltransferase and sinapoyl-G ...
Handle:
10113/2681
DOI:
10.1104/pp.107.098970
PubMed:
17600138
PubMed Central:
PMC1949888

24. Chloroplasts as a Nitric Oxide Cellular Source. Effect of Reactive Nitrogen Species on Chloroplastic Lipids and Proteins

Author:
Jasid, Sebastián; Simontacchi, Marcela; Bartoli, Carlos G.; Puntarulo, Susana
Source:
Plant physiology 2006 v.142 no.3 pp. 1246-1255
ISSN:
0032-0889
Subject:
Glycine max; Western blotting; antioxidant activity; calmodulin; chlorophyll; electron paramagnetic resonance spectroscopy; electrons; enzyme activity; esters; fluorescence; free radicals; lipid content; lipids; nitric oxide; nitrites; nitrogen; oxidation; soybeans; thylakoids; urea
Abstract:
... Nitric oxide (NO) generation by soybean (Glycine max var. ADM 4800) chloroplasts was studied as an endogenous product assessed by the electron paramagnetic resonance spin-trapping technique. Nitrite and L-arginine (Arg) are substrates for enzymatic activities considered to be the possible sources of NO in plants. Soybean chloroplasts showed a NO production of 3.2 ± 0.2 nmol min⁻¹ mg⁻¹ protein in t ...
DOI:
10.1104/pp.106.086918
PubMed:
16980561
PubMed Central:
PMC1630751

25. Identification of Genes with Potential Roles in Apple Fruit Development and Biochemistry through Large-Scale Statistical Analysis of Expressed Sequence Tags

Author:
Park, Sunchung; Sugimoto, Nobuko; Larson, Matthew D.; Beaudry, Randy; van Nocker, Steven
Source:
Plant physiology 2006 v.141 no.3 pp. 811-824
ISSN:
0032-0889
Subject:
sequence analysis; cultivars; biosynthesis; apples; biotic stress; complementary DNA; fruits; developmental stages; fruiting; expressed sequence tags; biochemical pathways; flavor; cDNA libraries; esters; Malus domestica; statistical analysis; odors; algorithms; databases
Abstract:
... Advanced studies of apple (Malus domestica Borkh) development, physiology, and biochemistry have been hampered by the lack of appropriate genomics tools. One exception is the recent acquisition of extensive expressed sequence tag (EST) data. The entire available EST dataset for apple resulted from the efforts of at least 20 contributors and was derived from more than 70 cDNA libraries representing ...
DOI:
10.1104/pp.106.080994
PubMed:
16825339
PubMed Central:
PMC1489918

26. Pathway of Sugar Transport in Germinating Wheat Seeds

Author:
Aoki, Naohiro; Scofield, Graham N.; Wang, Xin-Ding; Offler, Christina E.; Patrick, John W.; Furbank, Robert T.
Source:
Plant physiology 2006 v.141 no.4 pp. 1255-1263
ISSN:
0032-0889
Subject:
sieve elements; wheat; genes; roots; shoots; glucose; starch; solutes; Triticum aestivum; esters; phloem loading; hexoses; labeling techniques; in situ hybridization; germination; sucrose; transporters; yeasts; fluorescent dyes; Saccharomyces cerevisiae; aleurone cells; endosperm; maltose
Abstract:
... Three homeologous genes encoding a sucrose (Suc) transporter (SUT) in hexaploid wheat (Triticum aestivum), TaSUT1A, 1B, and 1D, were expressed in germinating seeds, where their function is unknown. All three TaSUT1 proteins were confirmed to be capable of transporting both Suc and maltose by complementation tests with the SUSY7/ura3 yeast (Saccharomyces cerevisiae) mutant strain. The role of Suc t ...
DOI:
10.1104/pp.106.082719
PubMed:
16766668
PubMed Central:
PMC1533920

27. Functional characterization of enzymes forming volatile esters from strawberry and banana

Author:
Beekwilder, J.; Alvarez-Huerta, M.; Neef, E.; Verstappen, F.W.A.; Bouwmeester, H.J.; Aharoni, A.
Source:
Plant physiology 2004 v.135 no.4 pp. 1865-1878
ISSN:
0032-0889
Subject:
Fragaria vesca; strawberries; Musa paradisiaca; plantains (fruit); Fragaria ananassa; fruit crops; plant proteins; acyltransferases; transgenes; genetic transformation; gene overexpression; recombinant fusion proteins; enzyme activity; substrate specificity; alcohols; coenzyme A; enzyme substrates; Petunia hybrida; transgenic plants; volatile organic compounds; esters; biosynthesis; amino acid sequences; nucleotide sequences
Abstract:
... Volatile esters are flavor components of the majority of fruits. The last step in their biosynthesis is catalyzed by alcohol acyltransferases (AATs), which link alcohols to acyl moieties. Full-length cDNAs putatively encoding AATs were isolated from fruit of wild strawberry (Fragaria vesca) and banana (Musa sapientum) and compared to the previously isolated SAAT gene from the cultivated strawberry ...
DOI:
10.1104/pp.104.042580
PubMed:
15326278
PubMed Central:
PMC520758

28. High genetic variability of herbivore-induced volatile emission within a broad range of maize inbred lines

Author:
Degen, T.; Dillmann, C.; Marion-Poll, F.; Turlings, T.C.J.
Source:
Plant physiology 2004 v.135 no.4 pp. 1928-1938
ISSN:
0032-0889
Subject:
sesquiterpenoids; volatile organic compounds; qualitative analysis; odors; Spodoptera littoralis; genetic distance; genotype; esters; multivariate analysis; Zea mays; quantitative analysis; phytochemicals; principal component analysis; corn; inbred lines; emissions; plant genetics; grain crops; phytophagous insects; aromatic compounds; monoterpenoids; genetic variation
Abstract:
... Maize plants (Zea mays) attacked by caterpillars release a mixture of odorous compounds that attract parasitic wasps, natural enemies of the herbivores. We assessed the genetic variability of these induced volatile emissions among 31 maize inbred lines representing a broad range of genetic diversity used by breeders in Europe and North America. Odors were collected from young plants that had been ...
DOI:
10.1104/pp.104.039891
PubMed:
15299140
PubMed Central:
PMC520764

29. Identification of syn-pimara-7,15-diene synthase reveals functional clustering of terpene synthases involved in rice phytoalexin/allelochemical biosynthesis

Author:
Wilderman, P.R.; Xu, M.; Jin, Y.; Coates, R.M.; Peters, R.J.
Source:
Plant physiology 2004 v.135 no.4 pp. 2098-2105
ISSN:
0032-0889
Subject:
Oryza sativa; rice; leaves; grain crops; plant proteins; alkyl (aryl) transferases; complementary DNA; sequence analysis; messenger RNA; gene expression regulation; enzyme activity; substrate specificity; phytoalexins; allelochemicals; diterpenoids; biosynthesis; biochemical pathways; ultraviolet radiation; esters; enzyme substrates; amino acid sequences
Abstract:
... Rice (Oryza sativa) produces momilactone diterpenoids as both phytoalexins and allelochemicals. Accordingly, the committed step in biosynthesis of these natural products is catalyzed by the class I terpene synthase that converts syn-copalyl diphosphate to the corresponding polycyclic hydrocarbon intermediate syn-pimara-7,15-diene. Here, a functional genomics approach was utilized to identify a syn ...
DOI:
10.1104/pp.104.045971
PubMed:
15299118
PubMed Central:
PMC520781

30. Arabidopsis genes involved in acyl lipid metabolism. A 2003 census of the candidates, a study of the distribution of expressed sequence tags in organs, and a web-based database

Author:
Beisson, F.; Koo, A.J.K.; Ruuska, S.; Schwender, J.; Pollard, M.; Thelen, J.J.; Paddock, T.; Salas, J.J.; Savage, L.; Milcamps, A.
Source:
Plant physiology 2003 v.132 no.2 pp. 681-697
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; fatty acids; biological nomenclature; tissue distribution; expressed sequence tags; carboxylic ester hydrolases; gene expression; lipolysis; esters; world wide web; gene banks; plant proteins
DOI:
10.1104/pp.103.022988
PubMed:
12805597
PubMed Central:
PMC167007

31. If homogalacturonan were a side chain of rhamnogalacturonan. I. Implications for cell wall architecture

Author:
Vincken, J.P.; Schols, H.A.; Oomen, R.J.F.J.; McCann, M.C.; Ulvskov, P.; Voragen, A.G.J.; Visser, R.G.F.
Source:
Plant physiology 2003 v.132 no.4 pp. 1781-1789
ISSN:
0032-0889
Subject:
epitopes; molecular models; pectins; cell walls; plant architecture; calcium; gels; carbohydrate structure; esters; research; polymers; borates; galacturonic acid
DOI:
10.1104/pp.103.022350
PubMed:
12913136
PubMed Central:
PMC1540329

32. Volatile ester formation in roses. Identification of an acetyl-coenzyme A. Geraniol/citronellol acetyltransferase in developing rose petals

Author:
Shalit, M.; Guterman, I.; Volpin, H.; Bar, E.; Tamari, T.; Menda, N.; Adam, Z.; Zamir, D.; Vainstein, A.; Weiss, D.
Source:
Plant physiology 2003 v.131 no.4 pp. 1868-1876
ISSN:
0032-0889
Subject:
Rosa; hybrids; corolla; flowering; odors; plant extracts; phytochemicals; chemical composition; esters; volatile organic compounds; acetyl coenzyme A; geraniol; citronellol; acyltransferases; expressed sequence tags; complementary DNA; messenger RNA; gene expression regulation; recombinant proteins; enzyme activity; substrate specificity; kinetics; amino acid sequences
Abstract:
... The aroma of roses (Rosa hybrida) is due to more than 400 volatile compounds including terpenes, esters, and phenolic derivatives. 2-Phenylethyl acetate, cis-3-hexenyl acetate, geranyl acetate, and citronellyl acetate were identified as the main volatile esters emitted by the flowers of the scented rose var. "Fragrant Cloud." Cell-free extracts of petals acetylated several alcohols, utilizing acet ...
PubMed:
12692346
PubMed Central:
PMC166943

33. Characterization of an acyltransferase capable of synthesizing benzylbenzoate and other volatile esters in flowers and damaged leaves of Clarkia breweri

Author:
D'Auria, J.C.; Chen, F.; Pichersky, E.
Source:
Plant physiology 2002 v.130 no.1 pp. 466-476
ISSN:
0032-0889
Subject:
stigma; Clarkia; plant proteins; gene expression; Nicotiana tabacum; leaves; Escherichia coli; Arabidopsis thaliana; volatile compounds; complementary DNA; benzyl benzoate; amino acid sequences; enzyme activity; tobacco; immunoblotting; biosynthesis; expressed sequence tags; flowers; biochemical pathways; chemical constituents of plants; protein content; acyltransferases
Abstract:
... A cDNA encoding a protein with 456 amino acids whose sequence shows considerable similarity to plant acyltransferases was identified among 750 Clarkia breweri flower expressed sequence tags. The cDNA was expressed in Escherichia coli, and the protein produced was shown to encode the enzyme benzoyl-coenzyme A (CoA):benzyl alcohol benzoyl transferase (BEBT). BEBT catalyzes the formation of benzylben ...
PubMed:
12226525
PubMed Central:
PMC166578

34. Down-regulation of caffeic acid O-methyltransferase in maize revisited using a transgenic approach

Author:
Piquemal, J.; Chamayou, S.; Nadaud, I.; Beckert, M.; Barriere, Y.; Mila, I.; Lapierre, C.; Rigau, J.; Puigdomenech, P.; Jauneau, A.; Digonnet, C.; Boudet, A.M.; Goffner, D.
Source:
Plant physiology 2002 v.130 no.4 pp. 1675-1685
ISSN:
0032-0889
Subject:
Zea mays; corn; grain crops; food crops; transgenic plants; flowering; caffeic acid; transferases; enzyme activity; lignin; biosynthesis; p-coumaric acid; esters; histology; nucleotide sequences; chemical constituents of plants; phenotype
Abstract:
... Transgenic maize (Zea mays) plants were generated with a construct harboring a maize caffeic acid O-methyltransferase (COMT) cDNA in the antisense (AS) orientation under the control of the maize Adh1 (alcohol dehydrogenase) promoter. Adh1-driven beta-glucuronidase expression was localized in vascular tissues and lignifying sclerenchyma, indicating its suitability in transgenic experiments aimed at ...
PubMed:
12481050
PubMed Central:
PMC166682

35. Early salt stress effects on the changes in chemical composition in leaves of ice plant and Arabidopsis. A fourier transform infrared spectroscopy study

Author:
Yang, J.; Yen, H.E.
Source:
Plant physiology 2002 v.130 no.2 pp. 1032-1042
ISSN:
0032-0889
Subject:
developmental stages; plant extracts; amides; protein conformation; spectral analysis; cell walls; halophytes; sodium; esters; leaves; Arabidopsis thaliana; plant development; leaf protein; pectins; water content; sodium chloride; salt stress; Mesembryanthemum crystallinum; stress response; chemical constituents of plants
Abstract:
... A technique based on Fourier transform infrared (FT-IR) spectrometry was developed to detect the corresponding changes in chemical composition associated with the rapid changes in sodium and water content in 200 mM NaCl-stressed halophyte ice plants (Mesembryanthemum crystallinum). The changes in glycophyte Arabidopsis stressed with 50 mM NaCl were also examined for comparison. The obtained IR spe ...
PubMed:
12376666
PubMed Central:
PMC166628

36. Molecular characterization of plant ubiquitin-conjugating enzymes belonging to the UbcP4/E2-C/UBCx/UbcH10 gene family

Author:
Criqui, M.C.; Almeida Engler, J. de.; Camasses, A.; Capron, A.; Parmentier, Y.; Inze, D.; Genschik, P.
Source:
Plant physiology 2002 v.130 no.3 pp. 1230-1240
ISSN:
0032-0889
Subject:
radishes; plant proteins; Southern blotting; lyases; recombinant proteins; Schizosaccharomyces pombe; cell division; gene expression; Nicotiana tabacum; esters; cytoplasm; Arabidopsis thaliana; messenger RNA; cell culture; histology; amino acid sequences; cell nucleus; ubiquitin; thiols; tobacco; green fluorescent protein; transgenic plants; Raphanus sativus; nucleotide sequences
Abstract:
... The anaphase promoting complex or cyclosome is the ubiquitin-ligase that targets destruction box-containing proteins for proteolysis during the cell cycle. Anaphase promoting complex or cyclosome and its activator (the fizzy and fizzy-related) proteins work together with ubiquitin-conjugating enzymes (UBCs) (E2s). One class of E2s (called E2-C) seems specifically involved in cyclin B1 degradation. ...
PubMed:
12427990
PubMed Central:
PMC166644

37. The Arabidopsis pxa1 mutant is defective in an ATP-binding cassette transporter-like protein required for peroxisomal fatty acid beta-oxidation

Author:
Zolman, B.K.; Silva, I.D.; Bartel, B.
Source:
Plant physiology 2001 v.127 no.3 pp. 1266-1278
ISSN:
0032-0889
Subject:
inflorescences; fatty acids; nutrient content; immunochemistry; cell growth; abnormal development; cell differentiation; roots; plant proteins; phenotype; clones; seed abortion; esters; oxidation; uptake mechanisms; wild relatives; leaves; metabolism; Arabidopsis; complementary DNA; amino acid sequences; resistance mechanisms; chromosome mapping; culture media; indole acetic acid; seed germination; genetic transformation; peroxisomes; indole butyric acid; coenzyme A; mutants
Abstract:
... Peroxisomes are important organelles in plant metabolism, containing all the enzymes required for fatty acid beta-oxidation. More than 20 proteins are required for peroxisomal biogenesis and maintenance. The Arabidopsis pxa1 mutant, originally isolated because it is resistant to the auxin indole-3-butyric acid (IBA), developmentally arrests when germinated without supplemental sucrose, suggesting ...
DOI:
10.1104/pp.010550
PubMed:
11706205
PubMed Central:
PMC129294

38. Cellular and subcellular localization of S-adenosyl-L-methionine:benzoic acid carboxyl methyltransferase, the enzyme responsible for biosynthesis of the volatile ester methylbenzoate in snapdragon flowers

Author:
Kolosova, N.; Sherman, D.; Karlson, D.; Dudareva, N.
Source:
Plant physiology 2001 v.126 no.3 pp. 956-964
ISSN:
0032-0889
Subject:
volatile compounds; immunohistochemistry; corolla; esters; odors; immunocytochemistry; transferases; Antirrhinum majus
Abstract:
... The benzenoid ester, methylbenzoate is one of the most abundant scent compounds detected in the majority of snapdragon (Antirrhinum majus) varieties. It is produced in upper and lower lobes of petals by enzymatic methylation of benzoic acid in the reaction catalyzed by S-adenosyl-L-methionine:benzoic acid carboxyl methyltransferase (BAMT). To identify the location of methylbenzoate biosynthesis, w ...
PubMed:
11457946
PubMed Central:
PMC116452

39. Chemical composition of the Prunus laurocerasus leaf surface. Dynamic changes of the epicuticular wax film during leaf development

Author:
Jetter, R.; Schaffer, S.
Source:
Plant physiology 2001 v.126 no.4 pp. 1725-1737
ISSN:
0032-0889
Subject:
fatty acids; plant development; acetates; thickness; alcohols; Prunus laurocerasus; plant cuticle; seasonal variation; triterpenoids; chemical constituents of plants; waxes; leaves
Abstract:
... The seasonal development of adaxial Prunus laurocerasus leaf surfaces was studied using newly developed methods for the mechanical removal of epicuticular waxes. During epidermal cell expansion, more than 50 microgram leaf(-1) of alkyl acetates accumulated within 10 d, forming an epicuticular wax film approximately 30 nm thick. Then, alcohols dominated for 18 d of leaf development, before alkanes ...
PubMed:
11500570
PubMed Central:
PMC117171

40. Characterization of auxin conjugates in Arabidopsis. Low steady-state levels of indole-3-acetyl-aspartate, indole-3-acetyl-glutamate, and indole-3-acetyl-glucose

Author:
Tam, Y.Y.; Epstein, E.; Normanly, J.
Source:
Plant physiology 2000 v.123 no.2 pp. 589-595
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; quantitative analysis; aspartic acid; glucose; seedlings; amides; metabolites; esters; indole acetic acid; chemical constituents of plants; qualitative analysis; glutamic acid
PubMed:
10859188
PubMed Central:
PMC59026

41. Octadecanoid-derived alteration of gene expression and the "oxylipin signature" in stressed barley leaves. Implications for different signaling pathways

Author:
Kramell, R.; Miersch, O.; Atzorn, R.; Parthier, B.; Wasternack, C.
Source:
Plant physiology 2000 v.123 no.1 pp. 177-187
ISSN:
0032-0889
Subject:
Hordeum vulgare; gene expression; leaves; jasmonic acid; stearic acid; biochemical pathways; temporal variation; esters; quantitative analysis; chemical constituents of plants
PubMed:
10806235
PubMed Central:
PMC58992

42. Purification of a jojoba embryo wax synthase, cloning of its cDNA, and production of high levels of wax in seeds of transgenic Arabidopsis

Author:
Lardizabal, K.D.; Metz, J.G.; Sakamoto, T.; Hutton, W.C.; Pollard, M.R.; Lassner, M.W.
Source:
Plant physiology 2000 v.122 no.3 pp. 645-655
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; complementary DNA; open reading frames; quantitative analysis; transgenic plants; embryo (plant); seed oils; amino acid sequences; oxidoreductases; esters; enzyme activity; Simmondsia chinensis; waxes; acyltransferases
Abstract:
... Wax synthase (WS, fatty acyl-coenzyme A [coA]: fatty alcohol acyltransferase) catalyzes the final step in the synthesis of linear esters (waxes) that accumulate in seeds of jojoba (Simmondsia chinensis). We have characterized and partially purified this enzyme from developing jojoba embryos. A protein whose presence correlated with WS activity during chromatographic fractionation was identified an ...
PubMed:
10712527
PubMed Central:
PMC58899

43. Glycerol is a suberin monomer. New experimental evidence for an old hypothesis

Author:
Moire, L.; Schmutz, A.; Buchala, A.; Yan, B.; Stark, R.E.; Ryser, U.
Source:
Plant physiology 1999 v.119 no.3 pp. 1137-1146
ISSN:
0032-0889
Subject:
chemical composition; plant development; stems; Gossypium hirsutum; glycerol; Solanum tuberosum; tubers; suberin; esters; alkanes; periderm; molecular conformation
Abstract:
... The monomer composition of the esterified part of suberin can be determined using gas chromatography-mass spectroscopy technology and is accordingly believed to be well known. However, evidence was presented recently indicating that the suberin of green cotton (Gossypium hirsutum cv Green Lint) fibers contains substantial amounts of esterified glycerol. This observation is confirmed in the present ...

44. Regulation of ferulate-5-hydroxylase expression in Arabidopsis in the context of sinapate ester biosynthesis

Author:
Ruegger, M.; Meyer, K.; Cusumano, J.C.; Chapple, C.
Source:
Plant physiology 1999 v.119 no.1 pp. 101-110
ISSN:
0032-0889
Subject:
phenylpropanoids; seedlings; genes; syringic acid; roots; phenotype; stems; secondary metabolites; gene expression; genotype; esters; oxygenases; leaves; Arabidopsis thaliana; genetic code; sinapic acid; transcription (genetics); enzyme activity; lignin; ferulic acid; biosynthesis; flowers; biochemical pathways; mutants; genetic variation
Abstract:
... Sinapic acid is an intermediate in syringyl lignin biosynthesis in angiosperms, and in some taxa serves as a precursor for soluble secondary metabolites. The biosynthesis and accumulation of the sinapate esters sinapoylglucose, sinapoylmalate, and sinapoylcholine are developmentally regulated in Arabidopsis and other members of the Brassicaceae. The FAH1 locus of Arabidopsis encodes the enzyme fer ...
PubMed:
9880351
PubMed Central:
PMC32209

45. Tobacco O-methyltransferases involved in phenylpropanoid metabolism. The different caffeoyl-coenzyme A/5-hydroxyferuloyl-coenzyme A 3/5-O-methyltransferase and caffeic acid/5-O-hydroxyferulic acid 3/5-O-methyltransferase classes have distinct substrate specificities and expression patterns

Author:
Maury, S.; Geoffroy, P.; Legrand, M.
Source:
Plant physiology 1999 v.121 no.1 pp. 215-223
ISSN:
0032-0889
Subject:
Nicotiana tabacum; transferases; phenylpropanoids; biosynthesis; gene expression; methylation; Tobacco mosaic virus; leaves; isozymes; Escherichia coli; esters; biochemical pathways; lignin
Abstract:
... The biosynthesis of lignin monomers involves two methylation steps catalyzed by orthodiphenol-O-methyltransferases: caffeic acid/5-hydroxyferulic acid 3/5-O-methyltransferases (COMTs) and caffeoyl-coenzyme A (CoA)/5-hydroxyferuloyl-CoA 3/5-O-methyltransferases (CCoAOMTs). Two COMT classes (I and II) were already known to occur in tobacco (Nicotiana tabacum) and three distinct CCoAOMT classes have ...

46. The pore size of non-graminaceous plant cell walls is rapidly decreased by borate ester cross-linking of the pectic polysaccharide rhamnogalacturonan II

Author:
Fleischer, A.; O'Neil, M.A.; Ehwald, R.
Source:
Plant physiology 1999 v.121 no.3 pp. 829-838
ISSN:
0032-0889
Subject:
pectins; cell walls; chelating agents; Chenopodium album; nutrient deficiencies; calcium; boron; cations; magnesium; pH; esters; sodium; polymers; borates; culture media; cell suspension culture; inorganic ions
Abstract:
... The walls of suspension-cultured Chenopodium album L. cells grown continually for more than 1 year on B-deficient medium contained monomeric rhamnogalacturonan II (mRG-II) but not the borate ester cross-linked RG II dimer (dRG-II-B). The walls of these cells had an increased size limit for dextran permeation, which is a measure of wall pore size. Adding boric acid to growing B-deficient cells resu ...

47. Floral scent production in Clarkia breweri. III. Enzymatic synthesis and emission of benzenoid esters

Author:
Dudareva, N.; Raguso, R.A.; Wang, J.; Ross, J.R.; Pichersky, E.
Source:
Plant physiology 1998 v.116 no.2 pp. 599-604
ISSN:
0032-0889
Subject:
volatile compounds; biosynthesis; chemical reactions; benzyl benzoate; flowers; biochemical pathways; Clarkia; benzoic acid; odors; transferases; enzyme activity; methyl salicylate
Abstract:
... plant, includes three benzenoid esters: benzylacetate, benzylbenzoate, and methylsalicylate. Here we report that petal tissue was responsible for the benzylacetate and methylsalicylate emission, whereas the pistil was the main source of benzylbenzoate. The activities of two novel enzymes, acetyl-coenzyme A:benzylalcohol acetyltransferase (BEAT), which catalyzes the acetyl esterification of benzyla ...
PubMed:
9489012
PubMed Central:
PMC35117

48. Biosynthesis of GA73 methyl ester in Lygodium ferns

Author:
Yamauchi, T.; Oyama, N.; Yamane, H.; Murofushi, N.; Schraudolf, H.; Pour, M.; Seto, H.; Mander, L.N.
Source:
Plant physiology 1997 v.113 no.3 pp. 773-778
ISSN:
0032-0889
Subject:
Lygodium; gibberellic acid; esters; biosynthesis; metabolites; chemical structure; chemical reactions; biochemical pathways; chemical constituents of plants
Abstract:
... Biosynthesis of GA73 methyl ester (GA73-Me), the principal antheridiogen in Lygodium ferns, was investigated. From the methanol extract of prothallia of Lygodium circinnatum, GA25, GA73, GA73-Me, GA88-Me, and a few unknown GA73 derivatives were detected by CC-MS. Because the presence of GA25 suggests that GA24, a direct precursor of GA25, could also be present in L. circinnatum prothallia, we used ...

49. Characterization and expression of caffeoyl-coenzyme A 3-O-methyltransferase proposed for the induced resistance response of Vitis vinifera L

Author:
Busam, G.; Junghanns, K.T.; Kneusel, R.E.; Kassemeyer, H.H.; Matern, U.
Source:
Plant physiology 1997 v.115 no.3 pp. 1039-1048
ISSN:
0032-0889
Subject:
lignification; plant pathogenic fungi; salicylic acid; genes; phenotype; methylation; systemic acquired resistance; clones; gene expression; disease resistance; esters; Vitis vinifera; complementary DNA; amino acid sequences; pathogenicity; enzyme activity; caffeic acid; coenzyme A; niacin; transferases; cell suspension culture; chitinase
Abstract:
... Cell-suspension cultures of Vitis vinifera L. cv Pinot Noir accumulated resveratrol upon fungal elicitation, and the activity of S-adenosyl-1-methionine:trans-caffeoyl-coenzyme A 3-O-methyltransferase (CCoAOMT), yielding feruloyl-CoA, increased to a transient maximum at 12 to 15 h. CCoAOMT cDNA was cloned from the elicited cells and was shown to encode a polypeptide highly homologous to CCoAOMTs f ...
PubMed:
9390437
PubMed Central:
PMC158567

50. Characterization of thylakoid-derived lipid-protein particles bearing the large subunit of ribulose-1,5-bisphosphate carboxylase/oxygenase

Author:
Smith, M.D.; Ghosh, S.; Dumbroff, E.B.; Thompson, J.E.
Source:
Plant physiology 1997 v.115 no.3 pp. 1073-1082
ISSN:
0032-0889
Subject:
ribulose-bisphosphate carboxylase; fatty acids; thylakoids; proteinases; adenosine triphosphate; Phaseolus vulgaris; esters; light; chemical constituents of plants; protein content; enzyme activity
Abstract:
... Lipid-protein particles bearing the 55-kD ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) (EC 4.1.1.39) large subunit (RLSU) and no detectable corresponding Rubisco small subunit (RSSU) were isolated from the stroma of intact chloroplasts by flotation centrifugation. Stromal RLSU-bearing particles appear to originate from thylakoids because they can also be generated in vitro by illumina ...