Abstract:
:Sugars play an important role in grapevine flowering. This complex process from inflorescence initiation to fruit maturity takes two growing seasons. Currently, most of the available data concern the involvement of sugars as energy sources during the formation of reproductive structures from initiation of inflorescences during the summer of the first year, until flower opening during the following spring. Sugars devoted to the development of reproductive structures are supplied either by wood reserves or by photosynthesis in leaves or inflorescences, depending on the stage of development. Female meiosis appears to be a key point in the success of flower formation because (i) flowers are vulnerable at this stage and (ii) it corresponds in the whole plant to the transition between reserve mobilization from perennial organs (roots, trunk, and canes) towards efficient leaf photosynthesis. The perturbation of reserve replenishment during the previous year provokes perturbation in the development of inflorescences, whereas altering the photosynthetic sources affects the formation of flowers during the same year. In particular, a lack of sugar availability in flowers at female meiosis caused by various environmental or physiological fluctuations may lead to drastic flower abortion. Apart from energy, sugars also play roles as regulators of gene expression and as signal molecules that may be involved in stress responses. In the future, these two topics should be further investigated in the grapevine considering the sensitivity of flowers to environmental stresses at meiosis.
journal_name
J Exp Botjournal_title
Journal of experimental botanyauthors
Lebon G,Wojnarowiez G,Holzapfel B,Fontaine F,Vaillant-Gaveau N,Clément Cdoi
10.1093/jxb/ern135subject
Has Abstractpub_date
2008-01-01 00:00:00pages
2565-78issue
10eissn
0022-0957issn
1460-2431pii
ern135journal_volume
59pub_type
杂志文章,评审abstract::Previous studies documented that metal hyperaccumulation armours plants with direct defences against pathogens. In the present study, it was found that high leaf Mn concentrations (<2500 µg g(-1)) induced grapevine resistance to powdery mildew [Uncinula necator (Schw.) Burr]. Manganese delayed pathogen spreading after...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ers175
更新日期:2012-09-01 00:00:00
abstract::Adventitious roots (ARs) are important for some plants that depend on clonal propagation. In this study, we demonstrate that a salt-responsive gene module is involved in the negative regulation of AR development in poplar. In this module, the expression of bZIP53 is induced by salt stress and it encodes a transcriptio...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eraa096
更新日期:2020-06-22 00:00:00
abstract::In the Arabidopsis mutant sdd1-1, a point mutation in a single gene (SDD1) causes specific alterations in stomatal density and distribution. In comparison to the wild type (C24), abaxial surfaces of sdd1-1 rosette leaves have about 2.5-fold higher stomatal densities. This mutant was used to study the consequence of st...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erg087
更新日期:2003-02-01 00:00:00
abstract::In Arabidopsis thaliana, the endogenous danger peptides, AtPeps, have been associated with plant defences reminiscent of those induced in pattern-triggered immunity. AtPeps are perceived by two homologous receptor kinases, PEPR1 and PEPR2, and are encoded in the C termini of the PROPEP precursors. Here, we report that...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ert330
更新日期:2013-12-01 00:00:00
abstract::Pepper (Capsicum annuum L.) plants were grown aeroponically in a Singapore greenhouse under natural diurnally fluctuating ambient shoot temperatures, but at two different root-zone temperatures (RZTs): a constant 20 +/- 2 degrees C RZT and a diurnally fluctuating ambient (A) (25-40 degrees C) RZT. Plants grown at 20-R...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jexbot/51.343.239
更新日期:2000-02-01 00:00:00
abstract::A model of kiwifruit berry development is presented, building on the model of Fishman and Génard used for peach fruit. That model has been extended to incorporate a number of important features of kiwifruit growth. First, the kiwifruit berry is attached to the stem through a pedicel/receptacle complex which contribute...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ert317
更新日期:2013-12-01 00:00:00
abstract::In Arabidopsis, 20 genes encode putative glutamate receptor-like proteins (AtGLRs). However, the functions of most genes are unknown. In this study, our results revealed that loss of function of AtGLR3.6 (atglr3.6-1) leads to reduced primary root growth and fewer lateral roots, whereas AtGLR3.6 overexpression induced ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erv576
更新日期:2016-03-01 00:00:00
abstract::Photosynthesis is fundamental to biomass production, but sensitive to drought. To understand the genetics of leaf photosynthesis, especially under drought, upland rice cv. Haogelao, lowland rice cv. Shennong265, and 94 of their introgression lines (ILs) were studied at flowering and grain filling under drought and wel...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/err292
更新日期:2012-01-01 00:00:00
abstract::Plants have developed diverse defence mechanisms to ward off herbivorous pests. However, agriculture still faces estimated crop yield losses ranging from 25% to 40% annually. These losses arise not only because of direct feeding damage, but also because many pests serve as vectors of plant viruses. Herbivorous thrips ...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/ery060
更新日期:2018-04-09 00:00:00
abstract::Heterotrimeric G-proteins (G-proteins) have been implicated in ubiquitous signalling mechanisms in eukaryotes. In plants, G-proteins modulate hormonal and stress responses and regulate diverse developmental processes. However, the molecular mechanisms of their functions are largely unknown. A yeast two-hybrid screen w...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ert327
更新日期:2013-12-01 00:00:00
abstract::Intact coconuts were germinated in situ and compared with excised zygotic embryos germinated in vitro. The growth of the embryonic tissue and their fatty acid compositions were measured. Haustoria, plumules and radicles of coconuts germinated in situ grew continuously and proportionately throughout the 120 d experimen...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jexbot/52.358.933
更新日期:2001-05-01 00:00:00
abstract::Xylella fastidiosa, a xylem-limited bacterial pathogen that causes bacterial leaf scorch in its hosts, has a diverse and extensive host range among plant species worldwide. Previous work has shown that water stress enhances leaf scorch symptom severity and progression along the stem in Parthenocissus quinquefolia infe...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erg046
更新日期:2003-01-01 00:00:00
abstract::The history of tomato (Solanum lycopersicum L.) improvement includes genetic bottlenecks, wild species introgressions, and divergence into distinct market classes. This history makes tomato an excellent model to investigate the effects of selection on genome variation. A combination of linkage mapping in two F(2) popu...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erq367
更新日期:2011-03-01 00:00:00
abstract::Environmental factors alter the impacts of parasitic plants on their hosts. However, there have been no controlled studies on how water availability modulates stem hemiparasites' effects on hosts. A glasshouse experiment was conducted to investigate the association between the Australian native stem hemiparasite Cassy...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erv548
更新日期:2016-03-01 00:00:00
abstract::Developing yellow-seeded Brassica napus (rapeseed) with improved qualities is a major breeding goal. The intermediate and final metabolites of the phenylpropanoid and flavonoid pathways affect not only oil quality but also seed coat colour of B. napus. Here, the accumulation of phenolic compounds was analysed in the s...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ert148
更新日期:2013-07-01 00:00:00
abstract::Eutypa dieback is a vascular disease that may severely affect vineyards throughout the world. In the present work, microarrays were made in order (i) to improve our knowledge of grapevine (Vitis vinifera cv. Cabernet-Sauvignon) responses to Eutypa lata, the causal agent of Eutypa dieback; and (ii) to identify genes th...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erq040
更新日期:2010-06-01 00:00:00
abstract::The inner envelope membrane (IEM) of the chloroplast plays crucial roles in forming an osmotic barrier and controlling metabolite exchange between the organelle and the cytosol. The IEM therefore harbours a number of membrane proteins and requires the import and integration of these nuclear-encoded proteins for its bi...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru290
更新日期:2014-10-01 00:00:00
abstract::The rise in atmospheric [CO(2)] is associated with increasing air temperature. However, studies on plant responses to interactive effects of [CO(2)] and temperature are limited, particularly for leaf structural attributes. In this study, Eucalyptus saligna plants were grown in sun-lit glasshouses differing in [CO(2)] ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ers231
更新日期:2012-10-01 00:00:00
abstract::PCR-based differential screening was used to identify ethylene-induced genes in deep-water rice (Oryza sativa L.). One of the isolated cDNAs represented a novel protein, OsSBF1, with high homology to mammalian Na+/bile acid transporters and to sodium-dependent transporters from bacteria. One highly homologous protein ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erf053
更新日期:2002-09-01 00:00:00
abstract::Phalaenopsis orchids are among the most valuable potted flowering crops commercially produced throughout the world because of their long flower life and ease of crop scheduling to meet specific market dates. During commercial production, Phalaenopsis are usually grown at an air temperature > or =28 degrees C to inhibi...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erl176
更新日期:2006-01-01 00:00:00
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
更新日期:2020-05-30 00:00:00
abstract::Understanding how green sink strength is regulated in planta poses a difficult problem because non-structural carbohydrate (NSC) levels can have integrated, simultaneous feedback effects on photosynthesis, sugar uptake, and respiration that depend on specific NSC moieties. Photosynthetic gametophytes of the fern Cerat...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erq407
更新日期:2011-03-01 00:00:00
abstract::The majority of proteins in eukaryotic cells are modified according to highly regulated mechanisms to fulfill specific functions and to achieve localization, stability, and transport. Protein ubiquitination is one of the major post-translational modifications occurring in eukaryotic cells. To obtain the proteomic data...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erp134
更新日期:2009-01-01 00:00:00
abstract::Two groups of linear gene constructs (gus and bar, and 1Ax1 and bar) lacking vector backbone sequences were independently transferred into the elite wheat (Triticum aestivum L.) variety EM12, and genetically stable transgenic plants with low copy number transgene integration were recovered. Co-transformation experimen...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erl145
更新日期:2006-01-01 00:00:00
abstract::Classical and recently found phytohormones play an important role in plant growth and development, but plants additionally control these processes through small signalling peptides. Over 1000 potential small signalling peptide sequences are present in the Arabidopsis genome. However, to date, a mere handful of small s...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/ert283
更新日期:2013-12-01 00:00:00
abstract::Total spikelet number per panicle (TSN) is one of the determinants of grain productivity in rice (Oryza sativa L.). In this study, we attempted to detect quantitative trait loci (QTLs) for TSN in the introgression lines with high TSN, derived from the cross of Indica Group variety IR 64 with new plant type lines. Two ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erx128
更新日期:2017-05-17 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
pub_type: 杂志文章
doi:10.1093/jxb/erv103
更新日期:2015-06-01 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
pub_type: 杂志文章
doi:10.1093/jxb/erh261
更新日期:2004-12-01 00:00:00
abstract::The critical role of auxin in strawberry fruit set and receptacle enlargement was demonstrated previously. While fertilization is known to trigger auxin biosynthesis, the specific tissue source of fertilization-induced auxin is not well understood. Here, the auxin reporter DR5ver2::GUS was introduced into wild strawbe...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ery384
更新日期:2019-01-07 00:00:00
abstract::The effect of water stress on the early seedling growth of onions was studied by placing newly-germinated seedlings in vermiculite equilibrated at different water potentials. Roots and shoots elongated more at -0.29 than at -0.64 MPa, but did not elongate at -1.66 MPa. However, roots and shoots of seedlings that had b...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jexbot/52.358.1129
更新日期:2001-05-01 00:00:00