A role for brassinosteroids in the regulation of photosynthesis in Cucumis sativus.

Abstract:

:The effects of 24-epibrassinolide (EBR) spray application on gas-exchange, chlorophyll fluorescence characteristics, Rubisco activity, and carbohydrate metabolism were investigated in cucumber (Cucumis sativus L. cv. Jinchun No. 3) plants grown in a greenhouse. EBR significantly increased the light-saturated net CO(2) assimilation rate (A(sat)) from 3 h to 7d after spraying, with 0.1 mg l(-1) EBR proving most effective. Increased A(sat) in EBR-treated leaves was accompanied by increases in the maximum carboxylation rate of Rubisco (V(c,max)) and in the maximum rate of RuBP regeneration (J(max)). EBR-treated leaves also had a higher quantum yield of PSII electron transport (phi(PSII)) than the controls, which was mainly due to a significant increase in the photochemical quenching (q(P)), with no change in the efficiency of energy capture by open PSII reaction centres (F'(v)/F'(m)). EBR did not influence photorespiration. In addition, significant increases in the initial activity of Rubisco and in the sucrose, soluble sugars, and starch contents were observed followed by substantial increases in sucrose phosphate synthase (SPS), sucrose synthase (SS), and acid invertase (AI) activities after EBR treatment. It was concluded that EBR increases the capacity of CO(2) assimilation in the Calvin cycle, which was mainly attributed to an increase in the initial activity of Rubisco.

journal_name

J Exp Bot

authors

Yu JQ,Huang LF,Hu WH,Zhou YH,Mao WH,Ye SF,Nogués S

doi

10.1093/jxb/erh124

keywords:

subject

Has Abstract

pub_date

2004-05-01 00:00:00

pages

1135-43

issue

399

eissn

0022-0957

issn

1460-2431

pii

erh124

journal_volume

55

pub_type

杂志文章
  • The beneficial endophyte Trichoderma hamatum isolate DIS 219b promotes growth and delays the onset of the drought response in Theobroma cacao.

    abstract::Theobroma cacao (cacao) is cultivated in tropical climates and is exposed to drought stress. The impact of the endophytic fungus Trichoderma hamatum isolate DIS 219b on cacao's response to drought was studied. Colonization by DIS 219b delayed drought-induced changes in stomatal conductance, net photosynthesis, and gre...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erp165

    authors: Bae H,Sicher RC,Kim MS,Kim SH,Strem MD,Melnick RL,Bailey BA

    更新日期:2009-01-01 00:00:00

  • PbbHLH4 regulates floral monoterpene biosynthesis in Phalaenopsis orchids.

    abstract::Floral scent is an important factor in attracting pollinators and repelling florivores. In Phalaenopsis bellina (Orchidaceae), the major floral scent components are monoterpenoids. Previously, we determined that expression of GERANYL DIPHOSPHATE SYNTHASE (PbGDPS) is highly correlated with monoterpene biosynthesis in P...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ery246

    authors: Chuang YC,Hung YC,Tsai WC,Chen WH,Chen HH

    更新日期:2018-08-14 00:00:00

  • miR168 influences phase transition, leaf epinasty, and fruit development via SlAGO1s in tomato.

    abstract::In Arabidopsis thaliana, Argonaute1 (AGO1) interacts with miR168 to modulate the small RNA regulatory pathway. However, the underlying mechanism of regulation and relationship between AGO1 and miR168 is poorly understood in the cash crop Solanum lycopersicum (tomato). We previously found that SlAGO1A and SlAGO1B were ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eru387

    authors: Xian Z,Huang W,Yang Y,Tang N,Zhang C,Ren M,Li Z

    更新日期:2014-12-01 00:00:00

  • The DYW-subgroup pentatricopeptide repeat protein PPR27 interacts with ZmMORF1 to facilitate mitochondrial RNA editing and seed development in maize.

    abstract::C-to-U RNA editing in plant mitochondria requires the participation of many nucleus-encoded factors, most of which are pentatricopeptide repeat (PPR) proteins. There is a large number of PPR proteins and the functions many of them are unknown. Here, we report a mitochondrion-localized DYW-subgroup PPR protein, PPR27, ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eraa273

    authors: Liu R,Cao SK,Sayyed A,Yang HH,Zhao J,Wang X,Jia RX,Sun F,Tan BC

    更新日期:2020-09-19 00:00:00

  • Virus-induced gene silencing of jasmonate-induced direct defences, nicotine and trypsin proteinase-inhibitors in Nicotiana attenuata.

    abstract::Research into the molecular basis of plant-insect interactions is hampered by the inability to alter the expression of individual genes in plants growing under natural conditions. The ability of virus-induced gene silencing (VIGS) to silence the expression of two jasmonate-induced genes known to mediate the expression...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erh004

    authors: Saedler R,Baldwin IT

    更新日期:2004-01-01 00:00:00

  • Vivipary and offspring survival in the epiphytic cactus Epiphyllum phyllanthus (Cactaceae).

    abstract::Vivipary, the germination of seeds before they are shed from the parent plant, is a rare event in angiosperms involving complex ecophysiological processes. Pseudovivipary and cryptovivipary occur in approximately 30 (2%) species of the cactus family. A remarkable case of vivipary in Epiphyllum phyllanthus is described...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erm232

    authors: Cota-Sánchez JH,Abreu DD

    更新日期:2007-01-01 00:00:00

  • Starch bioengineering affects cereal grain germination and seedling establishment.

    abstract::Cereal grain germination is central for plant early development, and efficient germination has a major role in crop propagation and malting. Endosperm starch is the prime energy reserve in germination and seedling establishment. In this study, it was hypothesized that optimized starch granule structure, and not only t...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eru107

    authors: Shaik SS,Carciofi M,Martens HJ,Hebelstrup KH,Blennow A

    更新日期:2014-06-01 00:00:00

  • Organization of cell walls in Sandersonia aurantiaca floral tissue.

    abstract::Visual symptoms of the onset of senescence in Sandersonia aurantiaca flowers begin with fading of flower colour and wilting of the tissue. When fully senescent, the flowers form a papery shell that remains attached to the plant. The cell walls of these flowers have been examined to determine whether there are wall mod...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jexbot/53.368.513

    authors: O'Donoghue EM,Somerfield SD,Heyes JA

    更新日期:2002-03-01 00:00:00

  • Utricularia carnivory revisited: plants supply photosynthetic carbon to traps.

    abstract::The rootless, aquatic Utricularia species belong to the largest and most cosmopolitan carnivorous plant genus. Populations of Utricularia plants are an important component of many standing, nutrient-poor, and humic waters. Carbon (C) allocation is an aspect of Utricularia's ecophysiology that has not been studied prev...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erp286

    authors: Sirová D,Borovec J,Santrůcková H,Santrucek J,Vrba J,Adamec L

    更新日期:2010-01-01 00:00:00

  • Ribonuclease J is required for chloroplast and embryo development in Arabidopsis.

    abstract::Chloroplasts perform many essential metabolic functions and their proper development is critically important in embryogenesis. However, little is known about how chloroplasts function in embryogenesis and more relevant components need to be characterized. In this study, we show that Arabidopsis Ribonuclease J (RNase J...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erv010

    authors: Chen H,Zou W,Zhao J

    更新日期:2015-04-01 00:00:00

  • Self-incompatibility in Papaver: signalling to trigger PCD in incompatible pollen.

    abstract::Sexual reproduction in higher plants uses pollination, involving interactions between pollen and pistil. Self-incompatibility (SI) prevents self-fertilization, providing an important mechanism to promote outbreeding. SI is controlled by the S-locus; discrimination occurs between incompatible pollen, which is rejected,...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/erm195

    authors: Bosch M,Franklin-Tong VE

    更新日期:2008-01-01 00:00:00

  • Ca2+-dependent and Ca2+-independent excretion modes of salicylic acid in tobacco cell suspension culture.

    abstract::14C-salicylic acid (SA) was used to monitor SA metabolism and its regulation in tobacco cell suspension culture. Two SA concentrations (20 microM and 200 microM) were used for comparison. SA was quickly taken up in both treatments, and the 200 microM-treated cells absorbed approximately 15 times that of 20 microM-trea...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:

    authors: Chen HJ,Hou WC,Kuć J,Lin YH

    更新日期:2001-06-01 00:00:00

  • The olive DGAT2 gene is developmentally regulated and shares overlapping but distinct expression patterns with DGAT1.

    abstract::Diacylglycerol acyltransferases (DGATs) catalyse the final step of the triacylglycerol (TAG) biosynthesis of the Kennedy pathway. Two major gene families have been shown to encode DGATs, DGAT1 (type-1) and DGAT2 (type-2). Both genes encode membrane-bound proteins, with no sequence homology to each other. In this study...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erq286

    authors: Banilas G,Karampelias M,Makariti I,Kourti A,Hatzopoulos P

    更新日期:2011-01-01 00:00:00

  • Stress-responsive alpha-dioxygenase expression in tomato roots.

    abstract::Alpha-dioxygenase (alpha-DOX) enzymes catalyse the oxygenation of fatty acids to yield a newly identified group of oxylipins that play a role in protecting tissues from oxidative damage and cell death. In tomato (Lycopersicon esculentum Mill.) alpha-DOX was identified as salt-regulated by differential display of mRNA,...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eri038

    authors: Tirajoh A,Aung TS,McKay AB,Plant AL

    更新日期:2005-02-01 00:00:00

  • Phloem transport: a review of mechanisms and controls.

    abstract::It is generally believed that an osmotically generated pressure gradient drives the phloem mass flow. So far, this widely accepted Münch theory has required remarkably few adaptations, but the debate on alternative and additional hypotheses is still ongoing. Recently, a possible shortcoming of the Münch theory has bee...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/ert302

    authors: De Schepper V,De Swaef T,Bauweraerts I,Steppe K

    更新日期:2013-11-01 00:00:00

  • Uptake of sodium in protoplasts of salt-sensitive and salt-tolerant cultivars of rice, Oryza sativa L. determined by the fluorescent dye SBFI.

    abstract::In this study, the uptake of Na+ into the cytosol of rice (Oryza sativa L. cvs Pokkali and BRRI Dhan29) protoplasts was measured using the acetoxy methyl ester of the fluorescent sodium-binding benzofuran isopthalate, SBFI-AM, and fluorescence microscopy. By means of inhibitor analyses the mechanisms for uptake and se...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eri312

    authors: Kader MA,Lindberg S

    更新日期:2005-12-01 00:00:00

  • Root anatomical phenes associated with water acquisition from drying soil: targets for crop improvement.

    abstract::Several root anatomical phenes affect water acquisition from drying soil, and may therefore have utility in breeding more drought-tolerant crops. Anatomical phenes that reduce the metabolic cost of the root cortex ('cortical burden') improve soil exploration and therefore water acquisition from drying soil. The best e...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/eru162

    authors: Lynch JP,Chimungu JG,Brown KM

    更新日期:2014-11-01 00:00:00

  • Combining QTL and co-expression analysis allowed identification of new candidates for oil accumulation in rapeseed.

    abstract::Quantitative trait loci (QTL) have been discovered in crops, where some of causal quantitative trait genes (QTGs) may not be functionally characterized even in model plant Arabidopsis. We propose an approach to delineate QTGs by coordinating expression of genes located within QTL in crops and known orthologs related w...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eraa563

    authors: Cui Y,Zeng X,Xiong Q,Wei D,Liao J,Xu Y,Chen G,Zhou Y,Dong H,Wan H,Liu Z,Li J,Guo L,Jung C,He Y,Qian W

    更新日期:2020-11-29 00:00:00

  • Leaf anatomical adaptations have central roles in photosynthetic acclimation to humidity.

    abstract::Rates of photosynthesis can be lower in plants grown under conditions of high leaf-to-air vapour pressure difference (VPD) than under low VPD. Leaf phenotype plasticity is a primary factor determining photosynthetic responses to environmental stimuli. However, it remains unclear how changes in leaf anatomical traits d...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erz238

    authors: Du Q,Liu T,Jiao X,Song X,Zhang J,Li J

    更新日期:2019-09-24 00:00:00

  • Functional characterization of barley betaglucanless mutants demonstrates a unique role for CslF6 in (1,3;1,4)-β-D-glucan biosynthesis.

    abstract::(1,3;1,4)-β-D-glucans (mixed-linkage glucans) are found in tissues of members of the Poaceae (grasses), and are particularly high in barley (Hordeum vulgare) grains. The present study describes the isolation of three independent (1,3;1,4)-β-D-glucanless (betaglucanless; bgl) mutants of barley which completely lack (1,...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/err285

    authors: Taketa S,Yuo T,Tonooka T,Tsumuraya Y,Inagaki Y,Haruyama N,Larroque O,Jobling SA

    更新日期:2012-01-01 00:00:00

  • Drought stress modulates cuticular wax composition of the grape berry.

    abstract::Drought events are a major challenge for many horticultural crops, including grapes, which are often cultivated in dry and warm climates. It is not understood how the cuticle contributes to the grape berry response to water deficit (WD); furthermore, the cuticular waxes and the related biosynthetic pathways are poorly...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eraa046

    authors: Dimopoulos N,Tindjau R,Wong DCJ,Matzat T,Haslam T,Song C,Gambetta GA,Kunst L,Castellarin SD

    更新日期:2020-05-30 00:00:00

  • MGOUN3: evidence for chromatin-mediated regulation of FLC expression.

    abstract::The MGOUN3(MGO3)/BRUSHY1(BRU1)/TONSOKU(TSK) gene of Arabidopsis thaliana encodes a nuclear leucine-glycine-asparagine (LGN) domain protein that may be implicated in chromatin dynamics and genome maintenance. Mutants with defects in MGO3 display a fasciated stem and disorganized meristem structures. The transition to f...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erj169

    authors: Guyomarc'h S,Benhamed M,Lemonnier G,Renou JP,Zhou DX,Delarue M

    更新日期:2006-01-01 00:00:00

  • Development of synchronized, autonomous, and self-regulated oscillations in transpiration rate of a whole tomato plant under water stress.

    abstract::Plants respond to many environmental changes by rapidly adjusting their hydraulic conductivity and transpiration rate, thereby optimizing water-use efficiency and preventing damage due to low water potential. A multiple-load-cell apparatus, time-series analysis of the measured data, and residual low-pass filtering met...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erq168

    authors: Wallach R,Da-Costa N,Raviv M,Moshelion M

    更新日期:2010-07-01 00:00:00

  • Distribution, biological activities, metabolism, and the conceivable function of cis-zeatin-type cytokinins in plants.

    abstract::Cytokinins (CKs) are plant hormones affecting numerous developmental processes. Zeatin and its derivatives are the most important group of isoprenoid CKs. Zeatin occurs as two isomers: while trans-zeatin (transZ) was found to be a bioactive substance, cis-zeatin (cisZ) was reported to have a weak biological impact. Ev...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erq457

    authors: Gajdosová S,Spíchal L,Kamínek M,Hoyerová K,Novák O,Dobrev PI,Galuszka P,Klíma P,Gaudinová A,Zizková E,Hanus J,Dancák M,Trávnícek B,Pesek B,Krupicka M,Vanková R,Strnad M,Motyka V

    更新日期:2011-05-01 00:00:00

  • Stomatal conductance, mesophyll conductance, and transpiration efficiency in relation to leaf anatomy in rice and wheat genotypes under drought.

    abstract::Increasing leaf transpiration efficiency (TE) may provide leads for growing rice like dryland cereals such as wheat (Triticum aestivum). To explore avenues for improving TE in rice, variations in stomatal conductance (gs) and mesophyll conductance (gm) and their anatomical determinants were evaluated in two cultivars ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erx314

    authors: Ouyang W,Struik PC,Yin X,Yang J

    更新日期:2017-11-02 00:00:00

  • Different ethylene receptors show an increased expression during the ripening of strawberries: does such an increment imply a role for ethylene in the ripening of these non-climacteric fruits?

    abstract::Notwithstanding the economic importance of non-climacteric fruits like grape and strawberry, little is known about the mechanisms that regulate their ripening. Up to now no growth regulator has emerged with a primary role similar to that played by ethylene in the ripening of the climacteric fruits. Strawberries can pr...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eri202

    authors: Trainotti L,Pavanello A,Casadoro G

    更新日期:2005-08-01 00:00:00

  • Alternative splicing of basic chitinase gene PR3b in the low-nicotine mutants of Nicotiana tabacum L. cv. Burley 21.

    abstract::Two unlinked semi-dominant loci, A (NIC1) and B (NIC2), control nicotine and related alkaloid biosynthesis in Burley tobaccos. Mutations in either or both loci (nic1 and nic2) lead to low nicotine phenotypes with altered environmental stress responses. Here we show that the transcripts derived from the pathogenesis-re...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erw345

    authors: Ma H,Wang F,Wang W,Yin G,Zhang D,Ding Y,Timko MP,Zhang H

    更新日期:2016-10-01 00:00:00

  • The knowns and unknowns of phosphorus loading into grains, and implications for phosphorus efficiency in cropping systems.

    abstract::Inefficient use of phosphorus (P) in agriculture adds to production costs, increases the risk of eutrophication of waterways, and contributes to the rapid depletion of the world's non-renewable rock phosphate supplies. The removal of large quantities of P from fields in harvested grains is a major driver in the global...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/erv517

    authors: Wang F,Rose T,Jeong K,Kretzschmar T,Wissuwa M

    更新日期:2016-03-01 00:00:00

  • Multispectral fluorescence and reflectance imaging at the leaf level and its possible applications.

    abstract::Images taken at different spectral bands are increasingly used for characterizing plants and their health status. In contrast to conventional point measurements, imaging detects the distribution and quantity of signals and thus improves the interpretation of fluorescence and reflectance signatures. In multispectral fl...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/erl207

    authors: Lenk S,Chaerle L,Pfündel EE,Langsdorf G,Hagenbeek D,Lichtenthaler HK,Van Der Straeten D,Buschmann C

    更新日期:2007-01-01 00:00:00

  • Brefeldin A affects adhesion of zoospores of the green alga Enteromorpha.

    abstract::Primary adhesion of zoospores of the green macroalga Enteromorpha to substrata involves a massive release of adhesive glycoproteins from Golgi-derived, membrane-bounded vesicles in the anterior region of the spore, followed by rapid curing. This process is sensitive to low concentrations (5-10 microg x ml(-1)) of the ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jexbot/52.360.1409

    authors: Callow ME,Crawford S,Wetherbee R,Taylor K,Finlay JA,Callow JA

    更新日期:2001-07-01 00:00:00