Phosphate depletion modulates auxin transport in Triticum aestivum leading to altered root branching.

abstract：:Although leaves and other vegetative tissues are generally considered as non-climacteric, citrus leaves show a climacteric system II behaviour after detachment. Upon harvest, young, fully expanded 'Valencia' orange (Citrus sinensis) leaves ( approximately 60-d-old) exhibited two phases of ethylene production. The firs...

journal_title：Journal of experimental botany

authors： Katz E,Riov J,Weiss D,Goldschmidt EE

更新日期：2005-05-01 00:00:00

abstract：:Nitric oxide (NO) and reactive nitrogen species have emerged as crucial signalling and regulatory molecules across all organisms. In plants, fungi and fungi-like oomycetes, NO is involved in the regulation of multiple processes during their growth, development, reproduction, responses to the external environment and b...

journal_title：Journal of experimental botany

authors： Jedelská T,Luhová L,Petřivalský M

更新日期：2020-12-24 00:00:00

abstract：:The 1-deoxy-D-xylulose 5-phosphate synthase (DXS) enzyme catalyses the first biosynthetic step of the 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway. In plants the MEP pathway is involved in the synthesis of the common precursors to the plastidic isoprenoids, isopentenyl diphosphate and dimethylallyl diphosphate, i...

journal_title：Journal of experimental botany

authors： Cordoba E,Porta H,Arroyo A,San Román C,Medina L,Rodríguez-Concepción M,León P

更新日期：2011-03-01 00:00:00

abstract：:Ozone induces rapid activation of SIPK, a mitogen-activated protein kinase (MAPK) in tobacco. Through transgenic manipulation it has previously been shown that overexpression of SIPK leads to enhanced ozone-induced lesion formation with concomitant accumulation of ROS. In spite of this hypersensitive phenotype, the ef...

journal_title：Journal of experimental botany

authors： Samuel MA,Walia A,Mansfield SD,Ellis BE

更新日期：2005-08-01 00:00:00

abstract：:The phytohormone auxin is a vital growth regulator in plants. In the root epidermis auxin steers root organ growth. However, the mechanisms that allow adjacent tissues to integrate growth are largely unknown. Here, the focus is on neighbouring epidermal root tissues to assess the integration of auxin-related growth re...

journal_title：Journal of experimental botany

authors： Löfke C,Scheuring D,Dünser K,Schöller M,Luschnig C,Kleine-Vehn J

更新日期：2015-08-01 00:00:00

abstract：:Plants are equipped with a range of defence mechanisms against herbivorous insects. In cruciferous species, jasmonic acid, salicylic acid, and ethylene along with glucosinolates and their hydrolysis products play important roles in plant protection and plant-insect communication. In turn, a number of herbivores have a...

journal_title：Journal of experimental botany

authors： Kusnierczyk A,Winge P,Midelfart H,Armbruster WS,Rossiter JT,Bones AM

更新日期：2007-01-01 00:00:00

abstract：:(13)C discrimination in organic matter with respect to atmospheric CO(2) (Delta(13)C) is under tight genetic control in many plant species, including the pedunculate oak (Quercus robur L.) full-sib progeny used in this study. Delta(13)C is expected to reflect intrinsic water use efficiency, but this assumption require...

journal_title：Journal of experimental botany

authors： Roussel M,Dreyer E,Montpied P,Le-Provost G,Guehl JM,Brendel O

更新日期：2009-01-01 00:00:00

abstract：:Plants are sessile organisms forced to adjust to their surrounding environment. In a single plant the photoautotrophic shoot is exposed to pronounced environmental variations recurring in a day-night 24 h (diel) cycle, whereas the heterotrophic root grows in a temporally less fluctuating environment. The contrasting h...

journal_title：Journal of experimental botany

authors： Ruts T,Matsubara S,Wiese-Klinkenberg A,Walter A

更新日期：2012-05-01 00:00:00

abstract：:Cytophotometry of individual nuclei was used to examine the level of endoreduplication in epidermal cells from the upper and lower parts of the ovary during Ornithogalum umbellatum flower and fruit development. An increase in DNA content from 2-4C to 2-8C in both parts of the ovary was observed, while the epidermal ce...

journal_title：Journal of experimental botany

authors： Kwiatkowska M,Poplonska K,Kazmierczak A,Stepinski D,Rogala K,Polewczyk K

更新日期：2007-01-01 00:00:00

abstract：:Branching is an important trait of plant development regulated by environmental signals. Phytochromes in Arabidopsis mediate branching in response to the changes in the red light:far-red light ratio (R:FR), the mechanisms of which are still elusive. Here it is shown that overexpression of CONSTANS-LIKE 7 (COL7) result...

journal_title：Journal of experimental botany

authors： Wang H,Zhang Z,Li H,Zhao X,Liu X,Ortiz M,Lin C,Liu B

更新日期：2013-02-01 00:00:00

abstract：:The role of endogenous salicylic acid (SA) signalling cascades in plant responses to salt and oxidative stresses is unclear. Arabidopsis SA signalling mutants, namely npr1-5 (non-expresser of pathogenesis related gene1), which lacks NPR1-dependent SA signalling, and nudt7 (nudix hydrolase7), which has both constitutiv...

journal_title：Journal of experimental botany

authors： Jayakannan M,Bose J,Babourina O,Shabala S,Massart A,Poschenrieder C,Rengel Z

更新日期：2015-04-01 00:00:00

abstract：:Root system architecture adapts to low nitrogen (N) nutrition. Some adaptations may be mediated by modifications of carbon (C) fluxes. The objective of this study was to test the hypothesis that changes in root system architecture under different N regimes may be accounted for by using simple hypotheses of C allocatio...

journal_title：Journal of experimental botany

authors： Brun F,Richard-Molard C,Pagès L,Chelle M,Ney B

更新日期：2010-05-01 00:00:00

abstract：:Capsella is a small genus within the mustard family (Brassicaceae). Its three species, however, show many evolutionary trends also observed in other Brassicaceae (including Arabidopsis) and far beyond, including transitions from a diploid, self-incompatible, obligatory outcrossing species with comparatively large and ...

journal_title：Journal of experimental botany

authors： Hintz M,Bartholmes C,Nutt P,Ziermann J,Hameister S,Neuffer B,Theissen G

更新日期：2006-01-01 00:00:00

abstract：:Fleshy fruits are an essential part of the human diet providing vital vitamins, minerals and other health-promoting compounds. The texture of the ripe fruit has a significant effect on quality and influences consumer acceptance, shelf-life, resistance, and transportability. The development of rational approaches to im...

journal_title：Journal of experimental botany

authors： Seymour GB,Manning K,Eriksson EM,Popovich AH,King GJ

更新日期：2002-10-01 00:00:00

abstract：:Diurnal rates of leaf elongation vary in maize (Zea mays L.) and are characterized by a decline each afternoon. The cause of the afternoon decline was investigated. When the atmospheric environment was held constant in a controlled environment, and water and nutrients were adequately supplied to the soil or the roots ...

journal_title：Journal of experimental botany

authors： Tang AC,Boyer JS

更新日期：2008-01-01 00:00:00

abstract：:The suppression subtractive hybridization technique was used to identify differentially expressed genes between hormone-autotrophic and hormone-dependent Panax ginseng callus lines. A tonoplast intrinsic protein cDNA (PgTIP1) was found to be highly and specifically expressed in hormone-autotrophic ginseng cells, which...

journal_title：Journal of experimental botany

authors： Lin W,Peng Y,Li G,Arora R,Tang Z,Su W,Cai W

更新日期：2007-01-01 00:00:00

abstract：:Plants of Lolium perenne L. were grown in sterile solution culture supplied with 2 mol m(-3) nitrogen as either nitrate or ammonium. Glutamine at 5 mol m(-3) was added to the nutrient solution of half the plants for 24 h. Root nitrate influx (at external nitrate concentrations 0-2000 mmol m(-3)) and amino acid concent...

journal_title：Journal of experimental botany

authors： Thornton B

更新日期：2004-03-01 00:00:00

abstract：:The fact that silicon application alleviates water deficit stress has been widely reported, but the underlying mechanism remains unclear. Here the effects of silicon on water uptake and transport of sorghum seedlings (Sorghum bicolor L.) growing under polyethylene glycol-simulated osmotic stress in hydroponic culture ...

journal_title：Journal of experimental botany

authors： Liu P,Yin L,Deng X,Wang S,Tanaka K,Zhang S

更新日期：2014-09-01 00:00:00

abstract：:In maize, water stress at flowering causes loss of kernel set and productivity. While changes in the levels of sugars and abscisic acid (ABA) are thought to play a role in this stress response, the mechanistic basis and genes involved are not known. A candidate gene approach was used with association mapping to identi...

journal_title：Journal of experimental botany

authors： Setter TL,Yan J,Warburton M,Ribaut JM,Xu Y,Sawkins M,Buckler ES,Zhang Z,Gore MA

更新日期：2011-01-01 00:00:00

abstract：:Many stresses are associated with increased accumulation of reactive oxygen species (ROS) and polyamines (PAs). PAs act as ROS scavengers, but export of putrescine and/or PAs to the apoplast and their catabolization by amine oxidases gives rise to H2O2 and other ROS, including hydroxyl radicals ((•)OH). PA catabolizat...

journal_title：Journal of experimental botany

authors： Pottosin I,Velarde-Buendía AM,Bose J,Zepeda-Jazo I,Shabala S,Dobrovinskaya O

更新日期：2014-03-01 00:00:00

abstract：:Since cysteine is the first committed molecule in plant metabolism containing both sulphur and nitrogen, the regulation of its biosynthesis is critically important. Cysteine itself is required for the production of an abundance of key metabolites in diverse pathways. Plants alter their metabolism to compensate for sul...

journal_title：Journal of experimental botany

authors： Hesse H,Nikiforova V,Gakière B,Hoefgen R

更新日期：2004-06-01 00:00:00

abstract：:Sucrose-phosphate synthase (SPS) from the cyanobacterium Synechocystis sp. PCC 6803 lacks all of the Ser residues known to be involved in the regulation of higher plant SPS by protein phosphorylation. The Synechocystis SPS is also not allosterically regulated by glucose 6-phosphate or orthophosphate. To investigate th...

journal_title：Journal of experimental botany

authors： Lunn JE,Gillespie VJ,Furbank RT

更新日期：2003-01-01 00:00:00

abstract：:In recent years, efforts to exploit sunlight, a free and abundant energy source, have sped up dramatically. Oxygenic photosynthetic organisms, such as higher plants, algae, and cyanobacteria, can convert solar energy into chemical energy very efficiently using water as an electron donor. By providing organic building ...

journal_title：Journal of experimental botany

authors： Russo DA,Zedler JAZ,Jensen PE

更新日期：2019-03-27 00:00:00

abstract：:Transcriptional studies in relation to fruit ripening generally aim to identify the transcriptional states associated with physiological ripening stages and the transcriptional changes between stages within the ripening programme. In non-climacteric fruits such as grape, all ripening-related genes involved in this pro...

journal_title：Journal of experimental botany

authors： Gouthu S,O'Neil ST,Di Y,Ansarolia M,Megraw M,Deluc LG

更新日期：2014-11-01 00:00:00

abstract：:The hormone ethylene regulates a wide range of plant developmental processes and EBF (EIN3-binding F-box) proteins were shown to negatively regulate the ethylene signalling pathway via mediating the degradation of EIN3/EIL proteins. The present study reports on the identification of two tomato F-box genes, Sl-EBF1 and...

journal_title：Journal of experimental botany

authors： Yang Y,Wu Y,Pirrello J,Regad F,Bouzayen M,Deng W,Li Z

更新日期：2010-03-01 00:00:00

abstract：:Nitric oxide (NO), more benign than its more reactive and damaging related molecules, reactive oxygen species (ROS), is perfectly suited for duties as a redox signalling molecule. A key route for NO bioactivity is through S-nitrosation, the addition of an NO moiety to a protein Cys thiol (-SH). This redox-based, post-...

journal_title：Journal of experimental botany

authors： Umbreen S,Lubega J,Loake GJ

更新日期：2019-08-19 00:00:00

abstract：:Temporal compartmentation of carboxylation processes is a defining feature of crassulacean acid metabolism and involves circadian control of key metabolic and transport steps that regulate the supply and demand for carbon over a 24h cycle. Recent insights on the molecular workings of the circadian clock and its connec...

journal_title：Journal of experimental botany

authors： Ceusters J,Borland AM,Taybi T,Frans M,Godts C,De Proft MP

更新日期：2014-07-01 00:00:00

abstract：:Cytoplasmic male sterility (CMS) is a widespread phenomenon in flowering plants caused by mitochondrial (mt) genes. CMS genes typically encode novel proteins that interfere with mt functions and can be silenced by nuclear fertility-restorer genes. Although the molecular basis of CMS is well established in a number of ...

journal_title：Journal of experimental botany

authors： Stone JD,Koloušková P,Sloan DB,Štorchová H

更新日期：2017-03-01 00:00:00

abstract：:Using the gamma-glutamylcysteine synthetase inhibitor, L-buthionine-[S,R]-sulphoximine (BSO), the role for phytochelatins (PCs) was evaluated in Cu, Cd, Zn, As, Ni, and Co tolerance in non-metallicolous and metallicolous, hypertolerant populations of Silene vulgaris (Moench) Garcke, Thlaspi caerulescens J.&C. Presl., ...

journal_title：Journal of experimental botany

authors： Schat H,Llugany M,Vooijs R,Hartley-Whitaker J,Bleeker PM

更新日期：2002-12-01 00:00:00

abstract：:Endosperm cap (CAP) weakening and embryo elongation growth are prerequisites for the completion of lettuce seed germination. Although it has been proposed that the cell wall loosening underlying these processes results from an enzymatic mechanism, it is still unclear which enzymes are involved. Here it is shown that r...

journal_title：Journal of experimental botany

authors： Zhang Y,Chen B,Xu Z,Shi Z,Chen S,Huang X,Chen J,Wang X

更新日期：2014-07-01 00:00:00