Acyl substrate preferences of an IAA-amido synthetase account for variations in grape (Vitis vinifera L.) berry ripening caused by different auxinic compounds indicating the importance of auxin conjugation in plant development.

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

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

更新日期：2016-03-01 00:00:00

abstract：:Water transport is an integral part of the process of growth by cell expansion and accounts for most of the increase in cell volume characterizing growth. Under water deficiency, growth is readily inhibited and growth of roots is favoured over that of leaves. The mechanisms underlying this differential response are ex...

journal_title：Journal of experimental botany

authors： Hsiao TC,Xu LK

更新日期：2000-09-01 00:00:00

abstract：:The mechanism of the post-translational modulation of nitrate reductase activity (NR, EC 1.6.6.1) is briefly summarized, and it is shown that by this mechanism nitric oxide production through NR is also rapidly modulated. New and partly unexpected details on the modulation mechanism have been obtained by using immunol...

journal_title：Journal of experimental botany

authors： Kaiser WM,Weiner H,Kandlbinder A,Tsai CB,Rockel P,Sonoda M,Planchet E

更新日期：2002-04-01 00:00:00

abstract：:Sunflower (Helianthus annuus L. cv. SH222) plants and calli were exposed to KCl stress for three weeks. Calli were more tolerant to KCl than plants. KCl stress decreased NO(-)(3), Mn, Fe and B levels in whole plants and P, Ca and Mg in shoots. NO(-)(3), P, Ca, Mg, Mn, and B levels decreased in 100 mM-stressed calli. C...

journal_title：Journal of experimental botany

authors： Santos CL,Campos A,Azevedo H,Caldeira G

更新日期：2001-02-01 00:00:00

abstract：:Plants have fundamental dependences on nitrogen and sulfur and frequently have to cope with chronic limitations when their supply is sub-optimal. This study aimed at characterizing the metabolomic, proteomic, and transcriptomic changes occurring in Arabidopsis leaves under chronic nitrate (Low-N) and chronic sulfate (...

journal_title：Journal of experimental botany

authors： Luo J,Havé M,Clément G,Tellier F,Balliau T,Launay-Avon A,Guérard F,Zivy M,Masclaux-Daubresse C

更新日期：2020-10-22 00:00:00

abstract：:Stem rust, caused by Puccinia graminis (Pg), remains a devastating disease of wheat, and the emergence of new Pg races virulent on deployed resistance genes fuels the ongoing search for sources of durable resistance. Despite its intrinsic durability, non-host resistance (NHR) is largely unexplored as a protection stra...

journal_title：Journal of experimental botany

authors： Bartaula R,Melo ATO,Connolly BA,Jin Y,Hale I

更新日期：2018-04-27 00:00:00

abstract：:Regulated cell death plays key roles during essential processes along the plant life cycle. It takes part of specific developmental programs and maintains the organism homeostasis in response to unfavorable environments. Ferroptosis is a recently discovered iron-dependent cell death pathway characterized by the accumu...

journal_title：Journal of experimental botany

authors： Distéfano AM,López GA,Setzes N,Marchetti F,Cainzos M,Cascallares M,Zabaleta E,Pagnussat GC

更新日期：2020-09-11 00:00:00

abstract：:Many biotypes of the northern-hemisphere Arctic-Alpine grass Poa alpina L. reproduce asexually via prolification of the spikelet axis to produce dehiscing shoots. Although capable of photosynthesis, the source-sink characteristics of these synflorescence systems are unknown, including the degree to which plantlets fro...

journal_title：Journal of experimental botany

authors： Pierce S,Stirling CM,Baxter R

更新日期：2000-10-01 00:00:00

abstract：:In photosynthetic tissues of the CAM plant pineapple (Ananas comosus), storage of soluble sugars in the central vacuole during the daytime and their remobilization at night is required to provide carbon skeletons for nocturnal CO(2) fixation. However, soluble sugars produced photosynthetically must also be exported to...

journal_title：Journal of experimental botany

authors： Antony E,Taybi T,Courbot M,Mugford ST,Smith JA,Borland AM

更新日期：2008-01-01 00:00:00

abstract：:Radial oxygen loss (ROL) and root porosity of rice (Oryza sativa L.) plants grown in either aerated or deoxygenated (stagnant) conditions were combined for the first time with extensive histochemical and biochemical studies of the apoplastic barriers in the roots' peripheral cell layers. Growth in stagnant solution si...

journal_title：Journal of experimental botany

authors： Kotula L,Ranathunge K,Schreiber L,Steudle E

更新日期：2009-01-01 00:00:00

abstract：:Leghemoglobins transport and deliver O2 to the symbiosomes inside legume nodules and are essential for nitrogen fixation. However, the roles of other hemoglobins (Hbs) in the rhizobia-legume symbiosis are unclear. Several Lotus japonicus mutants affecting LjGlb1-1, a non-symbiotic class 1 Hb, have been used to study t...

journal_title：Journal of experimental botany

authors： Fukudome M,Calvo-Begueria L,Kado T,Osuki K,Rubio MC,Murakami E,Nagata M,Kucho K,Sandal N,Stougaard J,Becana M,Uchiumi T

更新日期：2016-09-01 00:00:00

abstract：:MicroRNAs (miRNAs) are small noncoding regulatory RNAs that play key roles in the process of plant development. To date, extensive studies of miRNAs have been performed in a few model plants, but few efforts have focused on small RNAs (sRNAs) in conifers because of the lack of reference sequences for their enormous ge...

journal_title：Journal of experimental botany

authors： Qiu Z,Li X,Zhao Y,Zhang M,Wan Y,Cao D,Lu S,Lin J

更新日期：2015-06-01 00:00:00

abstract：:This work assessed the central carbohydrate metabolism of actively photosynthesizing leaf blades of a C3 grass (Lolium perenne L.). The study used dynamic (13)C labelling of plants growing in continuous light with contrasting supplies of nitrogen ('low N' and 'high N') and mathematical analysis of the tracer data with...

journal_title：Journal of experimental botany

authors： Lattanzi FA,Ostler U,Wild M,Morvan-Bertrand A,Decau ML,Lehmeier CA,Meuriot F,Prud'homme MP,Schäufele R,Schnyder H

更新日期：2012-03-01 00:00:00

abstract：:Crop water use efficiency (WUE) has come into sharp focus as population growth and climate change place increasing strain on the water used in cropping. Rainfed crops are being challenged by an upward trend in evaporative demand as average temperatures rise and, in many regions, there is an increased irregularity and ...

journal_title：Journal of experimental botany

authors： Condon AG

更新日期：2020-04-06 00:00:00

abstract：:Nitrogen (N), as an essential element in amino acids, nucleotides, and proteins, is a key factor in plant growth and development. Omics approaches such as metabolomics and transcriptomics have become a promising way to inspect complex network interactions in N metabolism and can be used for monitoring the uptake and r...

journal_title：Journal of experimental botany

authors： Fukushima A,Kusano M

更新日期：2014-10-01 00:00:00

abstract：:While many C4 lineages have Kranz anatomy around individual veins, Salsoleae have evolved the Salsoloid Kranz anatomy where a continuous dual layer of chlorenchyma cells encloses the vascular and water-storage tissue. With the aim of elucidating the evolution of C4 photosynthesis in Salsoleae, a broadly sampled molecu...

journal_title：Journal of experimental botany

authors： Schüssler C,Freitag H,Koteyeva N,Schmidt D,Edwards G,Voznesenskaya E,Kadereit G

更新日期：2017-01-01 00:00:00

abstract：:Stone cells negatively affect fruit quality because of their firm and lignified cell walls, so are targets for reduction in pear breeding programmes. However, there is only limited knowledge of the molecular mechanisms underlying the formation of stone cells. Here, we show that PbrMYB169, an R2R3 MYB transcription fac...

journal_title：Journal of experimental botany

authors： Xue C,Yao JL,Xue YS,Su GQ,Wang L,Lin LK,Allan AC,Zhang SL,Wu J

更新日期：2019-03-27 00:00:00

abstract：:Pectin is a normal constituent of cell walls of green plants. When supplied externally to live cells or walls isolated from the large-celled green alga Chara corallina, pectin removes calcium from load-bearing cross-links in the wall, loosening the structure and allowing it to deform more rapidly under the action of t...

journal_title：Journal of experimental botany

authors： Proseus TE,Boyer JS

更新日期：2012-06-01 00:00:00

abstract：:Reactive oxygen species (ROS) play a key role in the regulation of many biological processes in plants. Nonetheless, they are considered highly reactive and toxic to cells. Owing to their toxicity, as well as their important role in signaling, the level of ROS in cells needs to be tightly regulated. The ROS gene netwo...

journal_title：Journal of experimental botany

authors： Inupakutika MA,Sengupta S,Devireddy AR,Azad RK,Mittler R

更新日期：2016-11-01 00:00:00

abstract：:Particular physiological traits allow the vascular plants Deschampsia antarctica Desv. and Colobanthus quitensis (Kunth) Bartl. to inhabit Antarctica. The photosynthetic performance of these species was evaluated in situ, focusing on diffusive and biochemical constraints to CO2 assimilation. Leaf gas exchange, Chl a f...

journal_title：Journal of experimental botany

authors： Sáez PL,Bravo LA,Cavieres LA,Vallejos V,Sanhueza C,Font-Carrascosa M,Gil-Pelegrín E,Javier Peguero-Pina J,Galmés J

更新日期：2017-05-17 00:00:00

abstract：:The mistletoe, Viscum album, living on Scots pine (Pinus sylvestris) has been reported barely to regulate its transpiration and thus heavily to affect the gas exchange of its host. The extent of this mistletoe effect and its underlying mechanism has, so far, only been partially analysed. In this study, pine branches w...

journal_title：Journal of experimental botany

authors： Zweifel R,Bangerter S,Rigling A,Sterck FJ

更新日期：2012-04-01 00:00:00

abstract：:Phytopathogen infection leads to changes in secondary metabolism based on the induction of defence programmes as well as to changes in primary metabolism which affect growth and development of the plant. Therefore, pathogen attack causes crop yield losses even in interactions which do not end up with disease or death ...

journal_title：Journal of experimental botany

authors： Berger S,Sinha AK,Roitsch T

更新日期：2007-01-01 00:00:00

abstract：:The importance of gene duplication for evolutionary diversification has been mainly discussed in terms of genetic redundancy allowing neofunctionalization. In the case of C4 photosynthesis, which evolved via the co-option of multiple enzymes to boost carbon fixation in tropical conditions, the importance of genetic re...

journal_title：Journal of experimental botany

authors： Bianconi ME,Dunning LT,Moreno-Villena JJ,Osborne CP,Christin PA

更新日期：2018-04-09 00:00:00

abstract：:Inside chloroplasts, several abiotic stresses (including drought, high light, salinity, or extreme temperatures) induce a reduction in CO2 assimilation rates with a consequent increase in reactive oxygen species (ROS) production, ultimately leading to leaf senescence and yield loss. Photo-oxidation processes should th...

journal_title：Journal of experimental botany

authors： Pintó-Marijuan M,Munné-Bosch S

更新日期：2014-07-01 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：:In this study we test the hypothesis that maize genotypes with reduced crown root number (CN) will have greater root depth and improved water acquisition from drying soil. Maize recombinant inbred lines with contrasting CN were evaluated under water stress in greenhouse mesocosms and field rainout shelters. CN varied ...

journal_title：Journal of experimental botany

authors： Gao Y,Lynch JP

更新日期：2016-08-01 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：:Plant hormones, in addition to regulating growth and development, are involved in biotic and abiotic stress responses. To investigate whether a hormone signalling pathway plays a role in the plant response to the heavy metal cadmium (Cd), gene expression data in response to eight hormone treatments were retrieved from...

journal_title：Journal of experimental botany

authors： Villiers F,Jourdain A,Bastien O,Leonhardt N,Fujioka S,Tichtincky G,Parcy F,Bourguignon J,Hugouvieux V

更新日期：2012-02-01 00:00:00

abstract：:Water deficit during male meiosis in wheat (Triticum aestivum L.) causes pollen sterility. With a view to identifying the internal trigger for this failure, it was found that water stress specifically impairs the activities of vacuolar and cell-wall invertases in anthers prior to the arrest of pollen development. The ...

journal_title：Journal of experimental botany

authors： Koonjul PK,Minhas JS,Nunes C,Sheoran IS,Saini HS

更新日期：2005-01-01 00:00:00

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

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