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You searched for: Journal name Plant physiology Remove constraint Journal name: Plant physiology Publication year rev 7992-2008 Remove constraint Publication year rev: 7992-2008 Source 2008 v.146 no.3 Remove constraint Source: 2008 v.146 no.3
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1. Arabidopsis Branched-Chain Aminotransferase 3 Functions in Both Amino Acid and Glucosinolate Biosynthesis

Author:
Knill, Tanja; Schuster, Joachim; Reichelt, Michael; Gershenzon, Jonathan; Binder, Stefan
Source:
Plant physiology 2008 v.146 no.3 pp. 1028-1039
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; acids; amino acid composition; amino acid metabolism; biochemical pathways; biosynthesis; genes; glucosinolates; isoleucine; knockout mutants; leucine; methionine; recombinant proteins; transaminases; transamination; valine
Abstract:
... In Arabidopsis thaliana, transamination steps in the leucine biosynthetic and catabolic pathways and the methionine (Met) chain elongation cycle of aliphatic glucosinolate formation are catalyzed by branched-chain aminotransferases (BCATs) that are encoded by a small gene family of six members. One member of this family, the plastid-located BCAT3, was shown to participate in both amino acid and gl ...
DOI:
10.1104/pp.107.111609
PubMed:
18162591
PubMed Central:
PMC2259058

2. Arabidopsis Stromal 70-kD Heat Shock Proteins Are Essential for Plant Development and Important for Thermotolerance of Germinating Seeds

Author:
Su, Pai-Hsiang; Li, Hsou-min
Source:
Plant physiology 2008 v.146 no.3 pp. 1231-1241
ISSN:
0032-0889
Subject:
seedlings; crossing; protein transport; knockout mutants; heat treatment; plant proteins; heat tolerance; phenotype; genotype; leaves; Arabidopsis thaliana; plant development; protein folding; transfer DNA; mutation; growth retardation; root growth; seed treatment; heat shock proteins; germ cells; stress response; surveys; cotyledons
Abstract:
... The 70-kD heat shock proteins (Hsp70s) have been shown to be important for protein folding, protein translocation, and stress responses in almost all organisms and in almost all subcellular compartments. However, the function of plastid stromal Hsp70s in higher plants is still uncertain. Genomic surveys have revealed that there are two putative stromal Hsp70s in Arabidopsis thaliana, denoted cpHsc ...
DOI:
10.1104/pp.107.114496
PubMed:
18192441
PubMed Central:
PMC2259073

3. Ascorbate and Homoglutathione Metabolism in Common Bean Nodules under Stress Conditions and during Natural Senescence

Author:
Loscos, Jorge; Matamoros, Manuel A.; Becana, Manuel
Source:
Plant physiology 2008 v.146 no.3 pp. 1282-1292
ISSN:
0032-0889
Subject:
messenger RNA; beans; metabolism; longevity; ascorbate oxidase; jasmonic acid; stress response; Phaseolus vulgaris; biochemical pathways; glutathione dehydrogenase (ascorbate); homoglutathione synthase; antioxidant activity; enzyme activity; oxidative stress
Abstract:
... Ascorbate and glutathione are major antioxidants and redox buffers in plant cells but also play key functions in growth, development, and stress responses. We have studied the regulation of ascorbate and homoglutathione biosynthesis in common bean (Phaseolus vulgaris) nodules under stress conditions and during aging. The expression of five genes of the major ascorbate biosynthetic pathway was anal ...
DOI:
10.1104/pp.107.114066
PubMed:
18218966
PubMed Central:
PMC2259085

4. Bitterness in Almonds

Author:
Sánchez-Pérez, Raquel; Jørgensen, Kirsten; Olsen, Carl Erik; Dicenta, Federico; Møller, Birger Lindberg
Source:
Plant physiology 2008 v.146 no.3 pp. 1040-1052
ISSN:
0032-0889
Subject:
asparagine; ammonia; cultivars; bitterness; nitrogen balance; aspartic acid; salts; amygdalin; cotyledons; genotype; phenylalanine; almonds; mass spectrometry; Prunus dulcis
Abstract:
... Bitterness in almond (Prunus dulcis) is determined by the content of the cyanogenic diglucoside amygdalin. The ability to synthesize and degrade prunasin and amygdalin in the almond kernel was studied throughout the growth season using four different genotypes for bitterness. Liquid chromatography-mass spectrometry analyses showed a specific developmentally dependent accumulation of prunasin in th ...
DOI:
10.1104/pp.107.112979
PubMed:
18192442
PubMed Central:
PMC2259050

5. Characterization of the Monoterpene Synthase Gene tps26, the Ortholog of a Gene Induced by Insect Herbivory in Maize

Author:
Lin, Changfa; Shen, Binzhang; Xu, Zhennan; Köllner, Tobias G.; Degenhardt, Jörg; Dooner, Hugo K.
Source:
Plant physiology 2008 v.146 no.3 pp. 940-951
ISSN:
0032-0889
Subject:
quantitative trait loci; plant damage; green fluorescent protein; alleles; parents; Diatraea grandiosella; seedlings; corn; Zea mays subsp. mays; herbivores; peptides; genetic techniques and protocols; duplicate genes; natural enemies; gene expression regulation; insects; roots; leaves; prediction
Abstract:
... Plants damaged by insects can synthesize and release volatile chemicals that attract natural enemies of the herbivore. The maize (Zea mays subsp. mays) terpene synthase gene stc1 is part of that indirect defense response, being induced in seedling blades in response to herbivory by beet army worm. Many genes in maize are duplicated because of a past whole-genome duplication event, and several of t ...
DOI:
10.1104/pp.107.109553
PubMed:
18218975
PubMed Central:
PMC2259071

6. Comparative Genomic Sequence and Expression Analyses of Medicago truncatula and Alfalfa Subspecies falcata COLD-ACCLIMATION-SPECIFIC Genes

Author:
Pennycooke, Joyce C.; Cheng, Hongmei; Stockinger, Eric J.
Source:
Plant physiology 2008 v.146 no.3 pp. 1242-1254
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; Medicago sativa subsp. falcata; Medicago truncatula; acclimation; alfalfa; binding sites; cold; gene induction; regulon; reporter genes; sequence analysis; temperature
Abstract:
... In Arabidopsis (Arabidopsis thaliana) the low-temperature induction of genes encoding the C-REPEAT BINDING FACTOR (CBF) transcriptional activators is a key step in cold acclimation. CBFs in turn activate a battery of downstream genes known as the CBF regulon, which collectively act to increase tolerance to low temperatures. Fundamental questions are: What determines the size and scope of the CBF r ...
DOI:
10.1104/pp.107.108779
PubMed:
18218976
PubMed Central:
PMC2259090

7. A Comparison of Two Nicotiana attenuata Accessions Reveals Large Differences in Signaling Induced by Oral Secretions of the Specialist Herbivore Manduca sexta

Author:
Wu, Jianqiang; Hettenhausen, Christian; Schuman, Meredith C.; Baldwin, Ian T.
Source:
Plant physiology 2008 v.146 no.3 pp. 927-939
ISSN:
0032-0889
Subject:
Manduca sexta; Nicotiana; ethylene; evolution; gene expression; genes; genetic variation; herbivores; jasmonic acid; mitogen-activated protein kinase; phenotype; phenotypic variation; plant response; proteins; secondary metabolites; secretion; tobacco; Arizona; Utah
Abstract:
... Genetic variation within and among populations provides the raw material for evolution. Although many studies describe inter- and intraspecific variation of defensive metabolites, little is known about variation among plant populations within early signaling responses elicited by herbivory or by herbivore oral secretions (OS) introduced into wounds during feeding. In this study, we compare the OS- ...
DOI:
10.1104/pp.107.114785
PubMed:
18218965
PubMed Central:
PMC2259078

8. Complex Signaling Network in Regulation of Adenosine 5'-Phosphosulfate Reductase by Salt Stress in Arabidopsis Roots

Author:
Koprivova, Anna; North, Kathryn Anne; Kopriva, Stanislav
Source:
Plant physiology 2008 v.146 no.3 pp. 1408-1420
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; abscisic acid; adenylyl-sulfate reductase; auxins; enzyme activity; ethylene; gibberellic acid; messenger RNA; mutants; roots; salt stress; sodium chloride; sulfates
Abstract:
... Sulfur-containing compounds play an important role in plant stress defense; however, only a little is known about the molecular mechanisms of regulation of sulfate assimilation by stress. Using known Arabidopsis (Arabidopsis thaliana) mutants in signaling pathways, we analyzed regulation of the key enzyme of sulfate assimilation, adenosine 5'-phosphosulfate reductase (APR), by salt stress. APR act ...
DOI:
10.1104/pp.107.113175
PubMed:
18218969
PubMed Central:
PMC2259037

9. Cooperative Ethylene and Jasmonic Acid Signaling Regulates Selenite Resistance in Arabidopsis

Author:
Tamaoki, Masanori; Freeman, John L.; Pilon-Smits, Elizabeth A.H.
Source:
Plant physiology 2008 v.146 no.3 pp. 1219-1230
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; enzymes; ethylene; ethylene production; genes; glutathione; jasmonic acid; messenger RNA; methyl jasmonate; mutants; phenotype; physiological response; reactive oxygen species; resistance mechanisms; roots; selenium; sulfur; thiols; toxicity; transporters
Abstract:
... Selenium (Se) is an essential element for many organisms, but excess Se is toxic. To better understand plant Se toxicity and resistance mechanisms, we compared the physiological and molecular responses of two Arabidopsis (Arabidopsis thaliana) accessions, Columbia (Col)-0 and Wassilewskija (Ws)-2, to selenite treatment. Measurement of root length Se tolerance index demonstrated a clear difference ...
DOI:
10.1104/pp.107.110742
PubMed:
18178671
PubMed Central:
PMC2259059

10. Elucidation of the Final Reactions of DIMBOA-Glucoside Biosynthesis in Maize: Characterization of Bx6 and Bx7

Author:
Jonczyk, Rafal; Schmidt, Holger; Osterrieder, Anne; Fiesselmann, Andreas; Schullehner, Katrin; Haslbeck, Martin; Sicker, Dieter; Hofmann, Diana; Yalpani, Nasser; Simmons, Carl; Frey, Monika; Gierl, Alfons
Source:
Plant physiology 2008 v.146 no.3 pp. 1053-1063
ISSN:
0032-0889
Subject:
biosynthesis; chromosomes; corn; dimboa; enzymes; grasses; multigene family; secondary metabolites; seedlings
Abstract:
... Benzoxazinoids were identified in the early 1960s as secondary metabolites of the grasses that function as natural pesticides and exhibit allelopathic properties. Benzoxazinoids are synthesized in seedlings and stored as glucosides (glcs); the main aglucone moieties are 2,4-dihydroxy-2H-1,4-benzoxazin-3(4H)-one (DIBOA) and 2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one (DIMBOA). The genes of ...
DOI:
10.1104/pp.107.111237
PubMed:
18192444
PubMed Central:
PMC2259038

11. Functional Characterization of PaLAX1, a Putative Auxin Permease, in Heterologous Plant Systems

Author:
Hoyerová, Klára; Perry, Lucie; Hand, Paul; Laňková, Martina; Kocábek, Tomáš; May, Sean; Kottová, Jana; Pačes, Jan; Napier, Richard; Zažímalová, Eva
Source:
Plant physiology 2008 v.146 no.3 pp. 1128-1141
ISSN:
0032-0889
Subject:
2,4-D; Arabidopsis thaliana; Nicotiana tabacum; Prunus avium; cherries; complementary DNA; genes; indole acetic acid; protein products; transgenic plants
Abstract:
... We have isolated the cDNA of the gene PaLAX1 from a wild cherry tree (Prunus avium). The gene and its product are highly similar in sequences to both the cDNAs and the corresponding protein products of AUX/LAX-type genes, coding for putative auxin influx carriers. We have prepared and characterized transformed Nicotiana tabacum and Arabidopsis thaliana plants carrying the gene PaLAX1. We have prov ...
DOI:
10.1104/pp.107.109371
PubMed:
18184737
PubMed Central:
PMC2259084

12. Indole-3-Acetonitrile Production from Indole Glucosinolates Deters Oviposition by Pieris rapae

Author:
de Vos, Martin; Kriksunov, Ksenia L.; Jander, Georg
Source:
Plant physiology 2008 v.146 no.3 pp. 916-926
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; Pieris rapae; diet; digestive system; eggs; enzymes; females; glucosinolates; herbivores; in vivo studies; insects; isothiocyanates; larvae; mutants; nitriles; oviposition; plant proteins; toxicity; transgenic plants
Abstract:
... Like many crucifer-specialist herbivores, Pieris rapae uses the presence of glucosinolates as a signal for oviposition and larval feeding. Arabidopsis thaliana glucosinolate-related mutants provide a unique resource for studying the in vivo role of these compounds in affecting P. rapae oviposition. Low indole glucosinolate cyp79B2 cyp79B3 mutants received fewer eggs than wild type, confirming prio ...
DOI:
10.1104/pp.107.112185
PubMed:
18192443
PubMed Central:
PMC2259081

13. MYB72 Is Required in Early Signaling Steps of Rhizobacteria-Induced Systemic Resistance in Arabidopsis

Author:
Van der Ent, Sjoerd; Verhagen, Bas W.M.; Van Doorn, Ronald; Bakker, Daniel; Verlaan, Maarten G.; Pel, Michiel J.C.; Joosten, Ruth G.; Proveniers, Marcel C.G.; Van Loon, L.C.; Ton, Jurriaan; Pieterse, Corné M.J.
Source:
Plant physiology 2008 v.146 no.3 pp. 1293-1304
ISSN:
0032-0889
Subject:
Alternaria brassicicola; Arabidopsis thaliana; Botrytis cinerea; Peronospora parasitica; Pseudomonas fluorescens; Pseudomonas syringae pv. tomato; ethylene; genes; induced resistance; knockout mutants; microarray technology; pathogens; roots; transcription factors; transfer DNA; yeasts
Abstract:
... Colonization of Arabidopsis thaliana roots by nonpathogenic Pseudomonas fluorescens WCS417r bacteria triggers a jasmonate/ethylene-dependent induced systemic resistance (ISR) that is effective against a broad range of pathogens. Microarray analysis revealed that the R2R3-MYB-like transcription factor gene MYB72 is specifically activated in the roots upon colonization by WCS417r. Here, we show that ...
DOI:
10.1104/pp.107.113829
PubMed:
18218967
PubMed Central:
PMC2259080

14. Metabolic Profiles of Lolium perenne Are Differentially Affected by Nitrogen Supply, Carbohydrate Content, and Fungal Endophyte Infection

Author:
Rasmussen, Susanne; Parsons, Anthony J.; Fraser, Karl; Xue, Hong; Newman, Jonathan A.
Source:
Plant physiology 2008 v.146 no.3 pp. 1440-1453
ISSN:
0032-0889
Subject:
lipids; nitrogen compounds; carbon; mannitol; chlorogenic acid; analytical methods; endophytes; sulfur; alkaloids; Epichloe festucae var. lolii; secondary metabolites; metabolomics; cultivars; Lolium perenne; carbohydrate content; host plants; plant characteristics; herbivores; variance; regrowth; biomass; analysis of variance; nitrogen; magnesium; methionine; nitrates; fungi
Abstract:
... Lolium perenne cultivars differing in their capacity to accumulate water soluble carbohydrates (WSCs) were infected with three strains of fungal Neotyphodium lolii endophytes or left uninfected. The endophyte strains differed in their alkaloid profiles. Plants were grown at two different levels of nitrogen (N) supply in a controlled environment. Metabolic profiles of blades were analyzed using a v ...
DOI:
10.1104/pp.107.111898
PubMed:
18218971
PubMed Central:
PMC2259065

15. Microtubules Are a Target for Self-Incompatibility Signaling in Papaver Pollen

Author:
Poulter, Natalie S.; Vatovec, Sabina; Franklin-Tong, Vernonica E.
Source:
Plant physiology 2008 v.146 no.3 pp. 1358-1367
ISSN:
0032-0889
Subject:
Papaver rhoeas; actin; cell death; depolymerization; microfilaments; microtubules; pollen; pollen tubes
Abstract:
... Perception and integration of signals into responses is of crucial importance to cells. Both the actin and microtubule cytoskeleton are known to play a role in mediating diverse stimulus responses. Self-incompatibility (SI) is an important mechanism to prevent self-fertilization. SI in Papaver rhoeas triggers a Ca²⁺-dependent signaling network to trigger programmed cell death (PCD), providing a ne ...
DOI:
10.1104/pp.107.107052
PubMed:
18192439
PubMed Central:
PMC2259054

16. Modulation of the Hormone Setting by Rhodococcus fascians Results in Ectopic KNOX Activation in Arabidopsis

Author:
Depuydt, Stephen; Doležal, Karel; Van Lijsebettens, Mieke; Moritz, Thomas; Holsters, Marcelle; Vereecke, Danny
Source:
Plant physiology 2008 v.146 no.3 pp. 1267-1281
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; Rhodococcus fascians; bacteria; deformation; genes; hormones; leaves; meristems; niches; pathogens; phenotype; plant development; plant hormones; plant secretions and exudates; secretion; shoots; transgenic plants
Abstract:
... The biotrophic actinomycete Rhodococcus fascians has a profound impact on plant development and a common aspect of the symptomatology is the deformation of infected leaves. In Arabidopsis (Arabidopsis thaliana), the serrated leaf margins formed upon infection resemble the leaf phenotype of transgenic plants with ectopic expression of KNOTTED-like homeobox (KNOX) genes. Through transcript profiling ...
DOI:
10.1104/pp.107.113969
PubMed:
18184732
PubMed Central:
PMC2259056

17. Myosin XI-K Is Required for Rapid Trafficking of Golgi Stacks, Peroxisomes, and Mitochondria in Leaf Cells of Nicotiana benthamiana

Author:
Avisar, Dror; Prokhnevsky, Alexey I.; Makarova, Kira S.; Koonin, Eugene V.; Dolja, Valerian V.
Source:
Plant physiology 2008 v.146 no.3 pp. 1098-1108
ISSN:
0032-0889
Subject:
embryophytes; RNA interference; peroxisomes; complementary DNA; ancestry; Nicotiana benthamiana; phylogeny; Chlorophyta; mitochondria; myosin; cytoplasmic streaming; leaves
Abstract:
... A prominent feature of plant cells is the rapid, incessant movement of the organelles traditionally defined as cytoplasmic streaming and attributed to actomyosin motility. We sequenced six complete Nicotiana benthamiana cDNAs that encode class XI and class VIII myosins. Phylogenetic analysis indicates that these two classes of myosins diverged prior to the radiation of green algae and land plants ...
DOI:
10.1104/pp.107.113647
PubMed:
18178670
PubMed Central:
PMC2259067

18. PSY3, a New Member of the Phytoene Synthase Gene Family Conserved in the Poaceae and Regulator of Abiotic Stress-Induced Root Carotenogenesis

Author:
Li, Faqiang; Vallabhaneni, Ratnakar; Wurtzel, Eleanore T.
Source:
Plant physiology 2008 v.146 no.3 pp. 1333-1345
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; Zea mays; abiotic stress; abscisic acid; biosynthesis; corn; drought; gene duplication; gene expression; genes; grasses; leaves; messenger RNA; mutation; phytoene synthase; plant stress; rehydration; roots; salts; stress response
Abstract:
... Abscisic acid (ABA) plays a vital role in mediating abiotic stress responses in plants. De novo ABA biosynthesis involves cleavage of carotenoid precursors by 9-cis-epoxycarotenoid dioxygenase (NCED), which is rate controlling in leaves and roots; however, additional bottlenecks in roots must be overcome, such as biosynthesis of upstream carotenoid precursors. Phytoene synthase (PSY) mediates the ...
DOI:
10.1104/pp.107.111120
PubMed:
18162592
PubMed Central:
PMC2259096

19. Parasitism by Cuscuta pentagona Attenuates Host Plant Defenses against Insect Herbivores

Author:
Runyon, Justin B.; Mescher, Mark C.; De Moraes, Consuelo M.
Source:
Plant physiology 2008 v.146 no.3 pp. 987-995
ISSN:
0032-0889
Subject:
Cuscuta pentagona; Solanum lycopersicum; Spodoptera exigua; herbivores; host plants; insects; jasmonic acid; leaves; mutants; parasitic plants; parasitism; pathogens; plant response; salicylic acid; tomatoes; vines
Abstract:
... Considerable research has examined plant responses to concurrent attack by herbivores and pathogens, but the effects of attack by parasitic plants, another important class of plant-feeding organisms, on plant defenses against other enemies has not been explored. We investigated how attack by the parasitic plant Cuscuta pentagona impacted tomato (Solanum lycopersicum) defenses against the chewing i ...
DOI:
10.1104/pp.107.112219
PubMed:
18165323
PubMed Central:
PMC2259072

20. Phytochrome- and Gibberellin-Mediated Regulation of Abscisic Acid Metabolism during Germination of Photoblastic Lettuce Seeds

Author:
Sawada, Yoshiaki; Aoki, Miki; Nakaminami, Kentaro; Mitsuhashi, Wataru; Tatematsu, Kiyoshi; Kushiro, Tetsuo; Koshiba, Tomokazu; Kamiya, Yuji; Inoue, Yasunori; Nambara, Eiji; Toyomasu, Tomonobu
Source:
Plant physiology 2008 v.146 no.3 pp. 1386-1396
ISSN:
0032-0889
Subject:
germination; biosynthesis; complementary DNA; Lactuca sativa; cotyledons; genes; red light; lettuce; abscisic acid; phytochrome; metabolites
Abstract:
... Germination of lettuce (Lactuca sativa) 'Grand Rapids' seeds is regulated by phytochrome. The action of phytochrome includes alterations in the levels of gibberellin (GA) and abscisic acid (ABA). To determine the molecular mechanism of phytochrome regulation of ABA metabolism, we isolated four lettuce cDNAs encoding 9-cis-epoxycarotenoid dioxygenase (biosynthesis; LsNCED1-LsNCED4) and four cDNAs f ...
DOI:
10.1104/pp.107.115162
PubMed:
18184730
PubMed Central:
PMC2259076