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Journal of experimental botany
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7992-2008
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2008 v.59 no.11
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- Author:
- Peng, Mingsheng; Hudson, Darryl; Schofield, Andrew; Tsao, Rong; Yang, Raymond; Gu, Honglan; Bi, Yong-Mei; Rothstein, Steven.J.
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 2933-2944
- ISSN:
- 0022-0957
- Subject:
- anthocyanins; Arabidopsis; phenotype; nitrogen; mutation; gene expression; genes; mutants; phosphorus
- Abstract:
- ... Plants can survive a limiting nitrogen (N) supply by developing a set of N limitation adaptive responses. However, the Arabidopsis nla (nitrogen limitation adaptation) mutant fails to produce such responses, and cannot adapt to N limitation. In this study, the nla mutant was utilized to understand further the effect of NLA on Arabidopsis adaptation to N limitation. Grown with limiting N, the nla m ...
- DOI:
- 10.1093/jxb/ern148
- PubMed:
- 18552353
- PubMed Central:
- PMC2504352
- https://doi.org/10.1093/jxb/ern148
- Author:
- Yu, Xiyan; Wang, Xiufeng; Zhang, Wenqian; Qian, Tingting; Tang, Guimin; Guo, Yankui; Zheng, Chengchao
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 2969-2977
- ISSN:
- 0022-0957
- Subject:
- Cauliflower mosaic virus; Cucumis melo; beta-fructofuranosidase; complementary DNA; developmental stages; ethylene production; fruits; genes; leaves; muskmelons; phenotype; photosynthesis; plant development; plant growth; pollination; stems; sucrose; transgenic plants; transmission electron microscopy; ultrastructure
- Abstract:
- ... To unravel the roles of soluble acid invertase in muskmelon (Cucumis melo L.), its activity in transgenic muskmelon plants was reduced by an antisense approach. For this purpose, a 1038 bp cDNA fragment of muskmelon soluble acid invertase was expressed in antisense orientation behind the 35S promoter of the cauliflower mosaic virus. The phenotype of the antisense plants clearly differed from that ...
- DOI:
- 10.1093/jxb/ern158
- PubMed:
- 18641398
- https://doi.org/10.1093/jxb/ern158
- Author:
- Arteca, Richard N.; Arteca, Jeannette M.
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3019-3026
- ISSN:
- 0022-0957
- Subject:
- 2,4-D; Arabidopsis thaliana; brassinolide; ethylene; ethylene production; indole acetic acid; inflorescences; leaves; mutants; naphthaleneacetic acid; root tips; temperature
- Abstract:
- ... Inflorescence stalks produced the highest amount of ethylene in response to IAA as compared with other plant parts tested. Leaf age had an effect on IAA-induced ethylene with the youngest leaves showing the greatest stimulation. The highest amount of IAA-induced ethylene was produced in the root or inflorescence tip with regions below this producing less. Inflorescence stalks treated with IAA, 2,4 ...
- DOI:
- 10.1093/jxb/ern159
- PubMed:
- 18583350
- PubMed Central:
- PMC2504343
- https://doi.org/10.1093/jxb/ern159
4. Enhanced root-to-shoot translocation of cadmium in the hyperaccumulating ecotype of Sedum alfredii
- Author:
- Lu, Ling-li; Tian, Sheng-ke; Yang, Xiao-e; Wang, Xiao-chang; Brown, Patrick; Li, Ting-qiang; He, Zhen-li
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3203-3213
- ISSN:
- 0022-0957
- Subject:
- Brassica; Sedum; cadmium; cyanides; ecotypes; fluorescence; hyperaccumulators; metabolic inhibitors; roots; sap; shoots; xylem
- Abstract:
- ... Sedum alfredii (Crasulaceae) is the only known Cd-hyperaccumulating species that are not in the Brassica family; the mechanism of Cd hyperaccumulation in this plant is, however, little understood. Here, a combination of radioactive techniques, metabolic inhibitors, and fluorescence imaging was used to contrast Cd uptake and translocation between a hyperaccumulating ecotype (HE) and a non-hyperaccu ...
- DOI:
- 10.1093/jxb/ern174
- PubMed:
- 18603654
- PubMed Central:
- PMC2504354
- https://doi.org/10.1093/jxb/ern174
- Author:
- Zhang, Jiangwei; Ma, Huiqin; Feng, Jidong; Zeng, Lei; Wang, Zeng; Chen, Shangwu
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 2979-2990
- ISSN:
- 0022-0957
- Subject:
- ABC transporters; G-proteins; H-transporting ATP synthase; Vitis vinifera; adenosine triphosphate; cytoskeletal proteins; electrophoresis; gels; gene expression regulation; grapes; mass spectrometry; plant proteins; plasma membrane; protein synthesis; proteolysis; proteome; ripening; signal transduction; silver; small fruits; true protein; ubiquitin; zeatin
- Abstract:
- ... High purity berry plasma membranes (PMs) of Vitis vinifera L. cv. Cabernet Sauvignon were isolated by two-phase partitioning of microsome fractions at different stages of berry ripening. PM proteins resolvable by the detergent cocktail of CHAPS and ASB-14 were separated by two-dimensional electrophoresis. A total of 119 protein spots from pre-véraison berry PMs on 2-D gels detected with silver sta ...
- DOI:
- 10.1093/jxb/ern156
- PubMed:
- 18550598
- https://doi.org/10.1093/jxb/ern156
- Author:
- Ghanem, Michel Edmond; Albacete, Alfonso; Martínez-Andújar, Cristina; Acosta, Manuel; Romero-Aranda, Remedios; Dodd, Ian C.; Lutts, Stanley; Pérez-Alfocea, Francisco
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3039-3050
- ISSN:
- 0022-0957
- Subject:
- tomatoes; ethylene; 1-aminocyclopropane-1-carboxylic acid; ions; Solanum lycopersicum; leaf development; salinity; fluorescence; zeatin; photosystem II; cytokinins; leaves; planting; sodium chloride; abscisic acid; chlorophyll; indole acetic acid; hormones
- Abstract:
- ... Leaf senescence is one of the most limiting factors to plant productivity under salinity. Both the accumulation of specific toxic ions (e.g. Na⁺) and changes in leaf hormone relations are involved in the regulation of this process. Tomato plants (Solanum lycopersicum L. cv Moneymaker) were cultivated for 3 weeks under high salinity (100 mM NaCl) and leaf senescence-related parameters were studied ...
- DOI:
- 10.1093/jxb/ern153
- PubMed:
- 18573798
- PubMed Central:
- PMC2504355
- https://doi.org/10.1093/jxb/ern153
- Author:
- Girling, Robbie D.; Madison, Rachael; Hassall, Mark; Poppy, Guy M.; Turner, John G.
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3077-3085
- ISSN:
- 0022-0957
- Subject:
- Arabidopsis thaliana; crop production; ethylene; Diaeretiella rapae; Myzus persicae; herbivores; biochemical pathways; genes; mutants; salicylic acid; natural enemies; plant damage; point mutation
- Abstract:
- ... Feeding damage to plants by insect herbivores induces the production of plant volatiles, which are attractive to the herbivores natural enemies. Little is understood about the plant biochemical pathways involved in aphid-induced plant volatile production. The aphid parasitoid Diaeretiella rapae can detect and respond to aphid-induced volatiles produced by Arabidopsis thaliana. When given experienc ...
- DOI:
- 10.1093/jxb/ern163
- PubMed:
- 18583348
- https://doi.org/10.1093/jxb/ern163
- Author:
- Valluru, Ravi; Van den Ende, Wim
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 2905-2916
- ISSN:
- 0022-0957
- Subject:
- in vivo studies; fructans; extracellular space; plant stress; polymers; choline; in vitro studies; temperature; exocytosis; sucrose; transgenic plants; lipids; phosphates; crystallization; plasma membrane; molecular weight; abiotic stress; stress tolerance
- Abstract:
- ... Plants are sessile and sensitive organisms known to possess various regulatory mechanisms for defending themselves under stress environments. Fructans are fructose-based polymers synthesized from sucrose by fructosyltransferases (FTs). They have been increasingly recognized as protective agents against abiotic stresses. Using model membranes, numerous in vitro studies have demonstrated that fructa ...
- DOI:
- 10.1093/jxb/ern164
- PubMed:
- 18603617
- https://doi.org/10.1093/jxb/ern164
9. A novel activator-type ERF of Thinopyrum intermedium, TiERF1, positively regulates defence responses
- Author:
- Liang, HongXia; Lu, Yan; Liu, HongXia; Wang, FengDe; Xin, ZhiYong; Zhang, ZengYan
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3111-3120
- ISSN:
- 0022-0957
- Subject:
- protein binding; Fusarium graminearum; Tobacco mosaic virus; ethylene; transcription factors; Rhizoctonia cerealis; Thinopyrum intermedium; Blumeria graminis; jasmonic acid; transgenic plants; amino acids; Alternaria alternata; genes; salicylic acid; acid treatment; tobacco
- Abstract:
- ... Thinopyrum intermedium is resistant to many different pathogens. To understand the roles of ethylene response factors (ERFs) in defence responses, the first member of the ERF family in T. intermedium, TiERF1, was characterized and functionally analysed in this study. The TiERF1 gene encodes a putative protein of 292 amino acids, belonging to the B3 subgroup of the ERF transcription factor family. ...
- DOI:
- 10.1093/jxb/ern165
- PubMed:
- 18611911
- PubMed Central:
- PMC2504348
- https://doi.org/10.1093/jxb/ern165
- Author:
- Manavella, Pablo A.; Dezar, Carlos A.; Ariel, Federico D.; Drincovich, María F.; Chan, Raquel L.
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3143-3155
- ISSN:
- 0022-0957
- Subject:
- Arabidopsis thaliana; transcription factors; messenger RNA; Helianthus annuus; complementary DNA; transgenic plants; drought tolerance; gene expression regulation; transcription (genetics); gene expression; response elements; light; reporter genes; electrophoresis; chlorophyll; promoter regions; beta-glucuronidase; leaves; pigments
- Abstract:
- ... HAHB4 belongs to the sunflower subfamily I of HD-Zip proteins and is involved in drought-tolerance response and ethylene-mediated senescence. Cross-talk between these two processes through this transcription factor was recently described. In this study it is shown that the expression of HAHB4 is induced in darkness and quickly disappears when plants are exposed to light. This regulation of HAHB4 w ...
- DOI:
- 10.1093/jxb/ern170
- PubMed:
- 18603614
- https://doi.org/10.1093/jxb/ern170
- Author:
- Botha, C.E.J.; Aoki, N.; Scofield, G.N.; Liu, L.; Furbank, R.T.; White, R.G.
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 2945-2954
- ISSN:
- 0022-0957
- Subject:
- rice; plasmodesmata; xylem vessels; sieve tubes; Oryza sativa; electron microscopy; leaf blade; transpiration; endocytosis; solutes; sap; phloem loading; dextran; Golgi apparatus
- Abstract:
- ... The structure and transport properties of pit membranes at the interface between the metaxylem and xylem parenchyma cells and the possible role of these pit membranes in solute transfer to the phloem were investigated. Electron microscopy revealed a fibrillar, almost tubular matrix within the pit membrane structure between the xylem vessels and xylem parenchyma of leaf blade bundles in rice (Oryza ...
- DOI:
- 10.1093/jxb/ern150
- PubMed:
- 18617505
- PubMed Central:
- PMC2504346
- https://doi.org/10.1093/jxb/ern150
- Author:
- Errakhi, Rafik; Meimoun, Patrice; Lehner, Arnaud; Vidal, Guillaume; Briand, Joël; Corbineau, Françoise; Rona, Jean-Pierre; Bouteau, François
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3121-3129
- ISSN:
- 0022-0957
- Subject:
- Arabidopsis thaliana; DNA fragmentation; anions; cell death; cell suspension culture; ethylene; fungi; gene expression; oxalic acid; pathogenicity; plasma membrane; protein synthesis; shrinkage; signal transduction
- Abstract:
- ... Oxalic acid is thought to be a key factor of the early pathogenicity stage in a wide range of necrotrophic fungi. Studies were conducted to determine whether oxalate could induce programmed cell death (PCD) in Arabidopsis thaliana suspension cells and to detail the transduction of the signalling pathway induced by oxalate. Arabidopsis thaliana cells were treated with millimolar concentrations of o ...
- DOI:
- 10.1093/jxb/ern166
- PubMed:
- 18612171
- https://doi.org/10.1093/jxb/ern166
- Author:
- Onelli, Elisabetta; Prescianotto-Baschong, Cristina; Caccianiga, Marco; Moscatelli, Alessandra
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3051-3068
- ISSN:
- 0022-0957
- Subject:
- protoplasts; quantitative analysis; antibodies; endocytosis; brefeldin A; plasma membrane; endosomes; tobacco
- Abstract:
- ... Positively charged nanogold was used as a probe to trace the internalization of plasma membrane (PM) domains carrying negatively charged residues at an ultrastructural level. The probe revealed distinct endocytic pathways within tobacco protoplasts and allowed the morphology of the organelles involved in endocytosis to be characterized in great detail. Putative early endosomes with a tubulo-vesicu ...
- DOI:
- 10.1093/jxb/ern154
- PubMed:
- 18603619
- PubMed Central:
- PMC2504345
- https://doi.org/10.1093/jxb/ern154
- Author:
- Zhang, Yuhua; Wang, Yifei; Kanyuka, Kostya; Parry, Martin A.J.; Powers, Stephen J.; Halford, Nigel G.
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3131-3141
- ISSN:
- 0022-0957
- Subject:
- Arabidopsis; Turnip crinkle virus; Turnip yellow mosaic virus; amino acids; biosynthesis; gene expression; genes; herbicides; mutants; nitrate reductase; nitrates; phosphorylation; protein synthesis; regulatory proteins; transcription factors; viruses; yeasts
- Abstract:
- ... The yeast regulatory protein kinase, general control non-derepressible-2 (GCN2) plays a key role in general amino acid control. GCN2 phosphorylates the α subunit of the trimeric eukaryotic translation initiation factor-2 (eIF2), bringing about a decrease in the general rate of protein synthesis but an increase in the synthesis of GCN4, a transcription factor that promotes the expression of genes e ...
- DOI:
- 10.1093/jxb/ern169
- PubMed:
- 18603615
- PubMed Central:
- PMC2504353
- https://doi.org/10.1093/jxb/ern169
- Author:
- Mitsuhashi, Naoto; Kondo, Maki; Nakaune, Satoru; Ohnishi, Miwa; Hayashi, Makoto; Hara-Nishimura, Ikuko; Richardson, Alan; Fukaki, Hidehiro; Nishimura, Mikio; Mimura, Tetsuro
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3069-3076
- ISSN:
- 0022-0957
- Subject:
- Arabidopsis thaliana; metabolism; phytic acid; fruits; inositol phosphates; enzymes; seed development; cytosol; Western blotting; endosperm; genes; embryogenesis; fluorescence microscopy; roots; leaves; phosphorus
- Abstract:
- ... Expression and localization of myo-inositol-1-phosphate synthase (MIPS) in developing seeds of Arabidopsis thaliana was investigated. MIPS is an essential enzyme for production of inositol and inositol phosphates via its circularization of glucose-6-phosphate as the initial step. myo-inositol-6-phosphate (InsP₆ or phytic acid) is the predominant form of phosphorus found in seeds and accumulates as ...
- DOI:
- 10.1093/jxb/ern161
- PubMed:
- 18603618
- PubMed Central:
- PMC2504351
- https://doi.org/10.1093/jxb/ern161
- Author:
- Golisz, Anna; Sugano, Mami; Fujii, Yoshiharu
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3099-3109
- ISSN:
- 0022-0957
- Subject:
- Arabidopsis thaliana; Fagopyrum esculentum; abiotic stress; allelochemicals; annuals; buckwheat; fagomine; gallic acid; genes; grain crops; herbicides; mechanism of action; metabolism; microarray technology; oxidative stress; plant response; protein binding; reactive oxygen species; virulence; weeds
- Abstract:
- ... Buckwheat (Fagopyrum esculentum Moench) is an important annual plant cultivated for grain or as a cover crop in many countries, and it is also used for weed suppression in agro-economic systems through its release of allelochemicals. Little is known, however, concerning the mode of action of allelochemicals or plant defence response against them. Here, microarrays revealed 94, 85, and 28 genes wit ...
- DOI:
- 10.1093/jxb/ern168
- PubMed:
- 18603616
- PubMed Central:
- PMC2504356
- https://doi.org/10.1093/jxb/ern168
- Author:
- Pan, Haiyun; Wang, Yuguo; Zhang, Yongfeng; Zhou, Tongshui; Fang, Changming; Nan, Peng; Wang, Xiaoqiang; Li, Xiaobing; Wei, Yinlong; Chen, Jiakuan
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3027-3037
- ISSN:
- 0022-0957
- Subject:
- Astragalus membranaceus; acids; biosynthesis; chalcone; chalcone isomerase; enzyme activity; enzyme inhibitors; gene expression; genes; leaves; messenger RNA; naringenin-chalcone synthase; phenylalanine ammonia-lyase; plant response; temperature; trans-cinnamate 4-monooxygenase
- Abstract:
- ... Previously it had been shown that calycosin and calycosin-7-O-β-D-glucoside (CGs) accumulate in whole plants, mainly in leaves, of Astragalus membranaceus Bge. var. mongholicus (Bge.) Hsiao (A. mongholicus) plants in response to low temperature. In this work, it was demonstrated that the influences of different conditions on CGs biosynthesis, by examining the changes in CGs content, as well as the ...
- DOI:
- 10.1093/jxb/ern152
- https://doi.org/10.1093/jxb/ern152
- Author:
- Busot, Grethel Yanet; McClure, Bruce; Ibarra-Sánchez, Claudia Patricia; Jiménez-Durán, Karina; Vázquez-Santana, Sonia; Cruz-García, Felipe
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3187-3201
- ISSN:
- 0022-0957
- Subject:
- proteins; serine proteinases; immunohistochemistry; cell walls; Nicotiana alata; pollen tubes; gels; pistil; stigma; pollen; Kunitz-type proteinase inhibitor; cross pollination; self-pollination
- Abstract:
- ... After landing on a wet stigma, pollen grains hydrate and germination generally occurs. However, there is no certainty of the pollen tube growth through the style to reach the ovary. The pistil is a gatekeeper that evolved in many species to recognize and reject the self-pollen, avoiding endogamy and encouraging cross-pollination. However, recognition is a complex process, and specific factors are ...
- DOI:
- 10.1093/jxb/ern175
- PubMed:
- 18689443
- PubMed Central:
- PMC2504342
- https://doi.org/10.1093/jxb/ern175
- Author:
- Zimmermann, D.; Reuss, R.; Westhoff, M.; Gessner, P.; Bauer, W.; Bamberg, E.; Bentrup, F.W.; Zimmermann, U.
- Source:
- Journal of experimental botany 2008 v.59 no.11 pp. 3157-3167
- ISSN:
- 0022-0957
- Subject:
- Internet; Tetrastigma; greenhouses; irrigation management; leaves; lianas; microclimate; silicone; trees; turgor
- Abstract:
- ... A high-precision pressure probe is described which allows non-invasive online-monitoring of the water relations of intact leaves. Real-time recording of the leaf water status occurred by data transfer to an Internet server. The leaf patch clamp pressure probe measures the attenuated pressure, Pp, of a leaf patch in response to a constant clamp pressure, Pclamp. Pp is sensed by a miniaturized silic ...
- DOI:
- 10.1093/jxb/ern171
- PubMed:
- 18689442
- PubMed Central:
- PMC2504341
- https://doi.org/10.1093/jxb/ern171