Ammonium-induced loss of root gravitropism is related to auxin distribution and TRH1 function, and is uncoupled from the inhibition of root elongation in Arabidopsis.

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 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：:Water is a principal limitation to agricultural production during drought and in arid regions of the world. Mechanisms that plants use to cope with drought can be grouped into two different strategies: drought tolerance and drought avoidance. Previous efforts toward engineering plants for improved performance during d...

journal_title：Journal of experimental botany

authors： Laporte MM,Shen B,Tarczynski MC

更新日期：2002-04-01 00:00:00

abstract：:Artemisinin is a sesquiterpene lactone produced by the Chinese traditional herb Artemisia annua and is used for the treatment of malaria. It is known that salicylic acid (SA) can enhance artemisinin content but the mechanism by which it does so is not known. In this study, we systematically investigated a basic leucin...

journal_title：Journal of experimental botany

authors： Lv Z,Guo Z,Zhang L,Zhang F,Jiang W,Shen Q,Fu X,Yan T,Shi P,Hao X,Ma Y,Chen M,Li L,Zhang L,Chen W,Tang K

更新日期：2019-08-07 00:00:00

abstract：:To ensure future food security, there is an urgent need for improved co-ordination of agricultural research. While advances in biotechnology hold considerable promise, significant technology gaps exist that may reduce their impact. Examples include an incomplete knowledge of target breeding environments, a limited und...

journal_title：Journal of experimental botany

authors： Reynolds MP,Hellin J,Govaerts B,Kosina P,Sonder K,Hobbs P,Braun H

更新日期：2012-01-01 00:00:00

abstract：:Rapid alkalinization factor (RALF) is a peptide signal that plays a basic role in cell biology and most likely regulates cell expansion. In this study, transgenic Arabidopsis thaliana lines with high and low levels of AtRALF1 transcripts were used to investigate this peptide's mechanism of action. Overexpression of th...

journal_title：Journal of experimental botany

authors： Bergonci T,Ribeiro B,Ceciliato PH,Guerrero-Abad JC,Silva-Filho MC,Moura DS

更新日期：2014-05-01 00:00:00

abstract：:This study describes the variation in the mean relative shoot Ca content within the angiosperms at the ordinal level. Data were derived from studies in the literature in which the shoot Ca content of two or more species had been compared, and from a hydroponic experiment in which plants were selected to represent the ...

journal_title：Journal of experimental botany

authors： Broadley MR,Bowen HC,Cotterill HL,Hammond JP,Meacham MC,Mead A,White PJ

更新日期：2003-05-01 00:00:00

abstract：:Sweet cherry is a non-climacteric fruit and its ripening is regulated by abscisic acid (ABA) during fruit development. In this study, four cDNAs (PacCYP707A1-4) encoding 8'-hydroxylase, a key enzyme in the oxidative catabolism of ABA, were identified in sweet cherry fruits using tobacco rattle virus-induced gene silen...

journal_title：Journal of experimental botany

authors： Li Q,Chen P,Dai S,Sun Y,Yuan B,Kai W,Pei Y,He S,Liang B,Zhang Y,Leng P

更新日期：2015-07-01 00:00:00

abstract：:Medicago truncatula is a model legume plant that interacts symbiotically with Sinorhizobium meliloti, the alfalfa symbiont. This process involves a molecular dialogue between the bacterium and the plant. Legume roots exude flavonoids that induce the expression of a set of rhizobial genes, the nod genes, which are esse...

journal_title：Journal of experimental botany

authors： Macchiavelli RE,Brelles-Mariño G

更新日期：2004-12-01 00:00:00

abstract：:Mosses are among the earliest branching embryophytes and probably originated not later than the early Ordovician when atmospheric CO2 was higher and O2 was lower than today. The C3 biochemistry and physiology of their photosynthesis suggests, by analogy with tracheophytes, that growth of extant bryophytes in high CO2 ...

journal_title：Journal of experimental botany

authors： Raven JA,Colmer TD

更新日期：2016-03-01 00:00:00

abstract：:Grain number per spike, which is greatly influenced by floret fertility, is an important trait of wheat (Triticum aestivum L.) yield. Maximum floret primordia, fertile floret, and final grain number per spikelet are three crucial factors of floret fertility. Floral degradation plays a critical role in determining thes...

journal_title：Journal of experimental botany

authors： Guo Z,Schnurbusch T

更新日期：2015-09-01 00:00:00

abstract：:SPATULA is a bHLH transcription factor that promotes growth of tissues arising from the carpel margins, including the septum and transmitting tract. It is also involved in repressing germination of newly harvested seeds, and in inhibiting cotyledon, leaf, and petal expansion. Using a reporter gene construct, its expre...

journal_title：Journal of experimental botany

authors： Groszmann M,Bylstra Y,Lampugnani ER,Smyth DR

更新日期：2010-03-01 00:00:00

abstract：:Mutants sensitive to ionizing radiation in yeast and mammals include an assortment of DNA repair genes. The majority of these DNA repair genes are involved in the repair of DNA double-strand breaks. In this study a forward genetic screen is used to identify gamma-sensitive mutants of Arabidopsis thaliana. The gamma-pl...

journal_title：Journal of experimental botany

authors： Hefner E,Preuss SB,Britt AB

更新日期：2003-02-01 00:00:00

abstract：:Grape berry development and ripening are under complex regulation by the nutrients, hormones, and environment cues sensed by the berry. However, the biochemical and molecular mechanisms underlying these types of regulation are poorly understood. A simplified but realistic model system that enables fruit growth conditi...

journal_title：Journal of experimental botany

authors： Dai ZW,Meddar M,Renaud C,Merlin I,Hilbert G,Delrot S,Gomès E

更新日期：2014-08-01 00:00:00

abstract：:Plants have evolved complex mechanisms to balance the efficient use of absorbed light energy in photosynthesis with the capacity to use that energy in assimilation, so avoiding potential damage from excess light. This is particularly important under natural light, which can vary according to weather, solar movement an...

journal_title：Journal of experimental botany

authors： Retkute R,Smith-Unna SE,Smith RW,Burgess AJ,Jensen OE,Johnson GN,Preston SP,Murchie EH

更新日期：2015-05-01 00:00:00

abstract：:Plants resistant to aluminium (Al) stress were isolated from Arabidopsis thaliana enhancer-tagged mutant lines. Compared with the parental Col-7 control line, one of the resistant candidates, #355-2, showed a higher expression of the F9E10.5 gene (At1g75100) on chromosome 1, a lower Al content in whole roots, and a sh...

journal_title：Journal of experimental botany

authors： Ezaki B,Kiyohara H,Matsumoto H,Nakashima S

更新日期：2007-01-01 00:00:00

abstract：:An experiment was designed to apply a controlled bending to a tomato stem and simultaneously to measure its effect on stem elongation. Stem elongation was measured over 2 d until steady and equal rates were obtained for the control and the treated plants. Thereafter, the basal part of the stem was submitted to a trans...

journal_title：Journal of experimental botany

authors： Coutand C,Julien JL,Moulia B,Mauget JC,Guitard D

更新日期：2000-11-01 00:00:00

abstract：:Maintenance of a functional root is fundamental to plant survival in response to some abiotic stresses, such as water deficit. In this study, we found that overexpression of Arabidopsis class 1 phytoglobin (AtPgb1) alleviated the growth retardation of polyethylene glycol (PEG)-induced water stress by reducing programm...

journal_title：Journal of experimental botany

authors： Mira MM,Huang S,Kapoor K,Hammond C,Hill RD,Stasolla C

更新日期：2017-11-28 00:00:00

abstract：:Cell wall apposition (CWA) formation is one of the first lines of defence used by plants to halt invading fungi such as powdery mildew. Lignin is a complex polymer of hydroxylated and methoxylated phenylpropane units (monolignols) and lignification renders the cell wall more resistant to pathogen attack. The role of m...

journal_title：Journal of experimental botany

authors： Bhuiyan NH,Selvaraj G,Wei Y,King J

更新日期：2009-01-01 00:00:00

abstract：:It has been suggested that antioxidants play a role in regulating or modulating senescence dynamics of plant tissues. Ethylene has been shown to promote early plant senescence while controlled atmospheres (CA; reduced O2 levels and elevated CO2 levels) can delay its onset and/or severity. In order to examine the possi...

journal_title：Journal of experimental botany

authors： Hodges DM,Forney CF

更新日期：2000-03-01 00:00:00

abstract：:Low-temperature stress is an important factor affecting the growth and development of rice (Oryza sativa L.) in temperate and high-elevation areas. Cold stress may cause various seedling injuries, delayed heading and yield reduction due to spikelet sterility. In this study, 181 microsatellite marker loci were used to ...

journal_title：Journal of experimental botany

authors： Andaya VC,Mackill DJ

更新日期：2003-11-01 00:00:00

abstract：:The transition to flowering is known to be regulated by numerous interacting endogenous and environmental cues, of which brassinosteroids (BRs), a group of polyhydroxylated steroid phytohormones, appear to be linked to the regulation of flowering time. In Arabidopsis, BR biosynthetic det2 mutants exhibited delayed flo...

journal_title：Journal of experimental botany

authors： Li J,Li Y,Chen S,An L

更新日期：2010-10-01 00:00:00

abstract：:Actin filament (AF) organization was studied during the plasmolytic cycle in leaf cells of Chlorophyton comosum Thunb. In most cells the hyperosmotic treatment induced convex or concave plasmolysis and intense reorganization of the AF cytoskeleton. Thin cortical AFs disappeared and numerous cortical, subcortical and e...

journal_title：Journal of experimental botany

authors： Komis G,Apostolakos P,Galatis B

更新日期：2002-08-01 00:00:00

abstract：:In grapevine, stimulation of defence responses was evidenced in response to various types of abiotic stresses in both leaves and berries, as revealed by the increasing expression of genes encoding defence-related proteins or the stimulation of their corresponding activities. However, the capability of inflorescences t...

journal_title：Journal of experimental botany

authors： Petit AN,Baillieul F,Vaillant-Gaveau N,Jacquens L,Conreux A,Jeandet P,Clément C,Fontaine F

更新日期：2009-01-01 00:00:00

abstract：:During the Green Revolution, substantial increases in wheat (Triticum aestivum) yields were realized, at least in part, through the introduction of the Reduced height (Rht)-B1b and Rht-D1b semi-dwarfing alleles. In contrast to Rht-B1b and Rht-D1b, the Rht-B1c allele is characterized by extreme dwarfism and exceptional...

journal_title：Journal of experimental botany

authors： Van De Velde K,Chandler PM,Van Der Straeten D,Rohde A

更新日期：2017-01-01 00:00:00

abstract：:Previously, the OEP16.1 channel pore in the outer envelope membrane of mature pea (Pisum sativum) chloroplasts in vitro has been characterized to be selective for amino acids. Isolation of OEP16.2, a second OEP16 isoform from pea, in the current study allowed membrane localization and gene expression of OEP16 to be fo...

journal_title：Journal of experimental botany

authors： Pudelski B,Schock A,Hoth S,Radchuk R,Weber H,Hofmann J,Sonnewald U,Soll J,Philippar K

更新日期：2012-03-01 00:00:00

abstract：:Rhizosheaths comprise soil bound to roots, and in wheat (Triticum aestivum L.) rhizosheath size correlates with root hair length. The aims of this study were to determine the effect that a large rhizosheath has on the phosphorus (P) acquisition by wheat and to investigate the genetic control of rhizosheath size in whe...

journal_title：Journal of experimental botany

authors： James RA,Weligama C,Verbyla K,Ryan PR,Rebetzke GJ,Rattey A,Richardson AE,Delhaize E

更新日期：2016-06-01 00:00:00

abstract：:The soil-borne fungal pathogen Verticillium dahliae infects a wide range of dicotyledonous plants including cotton, tobacco, and Arabidopsis. Among the effector proteins secreted by V. dahliae, the 16 kDa PevD1 induces a hypersensitive response in tobacco. Here we report the high-resolution structure of PevD1 with fol...

journal_title：Journal of experimental botany

authors： Zhou R,Zhu T,Han L,Liu M,Xu M,Liu Y,Han D,Qiu D,Gong Q,Liu X

更新日期：2017-06-15 00:00:00

abstract：:Gametophytic self-incompatibility (GSI) is controlled by a complex S locus containing the pistil determinant S-RNase and pollen determinant SFB/SLF. Tight linkage of the pistil and pollen determinants is necessary to guarantee the self-incompatibility (SI) function. However, multiple probable pollen determinants of ap...

journal_title：Journal of experimental botany

authors： Wang S,Kakui H,Kikuchi S,Koba T,Sassa H

更新日期：2012-08-01 00:00:00

abstract：:The ability of two soybean (Glycine max L. [Merrill]) cultivars, 'Williams 82' and 'Maple Arrow', which were reported to use different ureide degradation pathways, to degrade the ureides allantoin and allantoate was investigated. Protein fractions and total leaf homogenates from the fourth trifoliate leaves of both cu...

journal_title：Journal of experimental botany

authors： Todd CD,Polacco JC

更新日期：2004-04-01 00:00:00