Abstract:
:Charles Darwin made extensive observations of the pollination biology of a wide variety of plants. He carefully documented the consequences of self-pollination and described species that were self-sterile but that could easily be crossed with other plants of the same species. He believed that compatibility was controlled by the 'mutual action' of pollen and pistil contents. A genetic model for self-sterility was developed in the early 1900 s based on studies of the compatibility relationships among, what are now referred to as, self-incompatible (SI) Nicotiana species. Today, it is believed that SI in these species is controlled by an interaction between S-RNases produced in the pistil and F-box proteins expressed in pollen and, moreover, that this S-RNase-based SI system is shared by a great diversity of other plant species. Current research is aimed at understanding how the mutual actions of these S-gene products function in the physiological context of pollen tube growth.
journal_name
J Exp Botjournal_title
Journal of experimental botanyauthors
McClure Bdoi
10.1093/jxb/erp024subject
Has Abstractpub_date
2009-01-01 00:00:00pages
1069-81issue
4eissn
0022-0957issn
1460-2431pii
erp024journal_volume
60pub_type
历史文章,杂志文章,评审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
pub_type: 杂志文章
doi:10.1093/jxb/err375
更新日期:2012-03-01 00:00:00
abstract::Drought escape and dehydration avoidance represent alternative strategies for drought adaptation in annual crops. The mechanisms underlying these two strategies are reported to have a negative correlation, suggesting a trade-off. We conducted a quantitative trait locus (QTL) analysis of flowering time and root mass, t...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru423
更新日期:2015-01-01 00:00:00
abstract::SPICK2, a homologue of the weakly-inward-rectifying Shaker-like Arabidopsis K channel, AKT2, is a candidate K+-influx channel participating in light- and clock-regulated leaf movements of the legume, Samanea saman. Light and the biological clock regulate the in situ K+-influx channel activity differentially in extenso...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erl104
更新日期:2006-01-01 00:00:00
abstract::Pepper (Capsicum annuum L.) and tomato (Solanum lycopersicum L.), which belong to the Solanaceae family, are among the most cultivated and consumed fleshy fruits worldwide and constitute excellent sources of many essential nutrients, such as vitamins A, C, and E, calcium, and carotenoids. While fruit ripening is a hig...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/erx453
更新日期:2018-06-19 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
pub_type: 杂志文章
doi:10.1093/jxb/erv169
更新日期:2015-07-01 00:00:00
abstract::A recent analysis of the hexokinase (HXK) gene family from Arabidopsis revealed that three hexokinase-like (HKL) proteins lack catalytic activity, but share about 50% identity with the primary glucose (glc) sensor/transducer protein AtHXK1. Since the AtHKL1 protein is predicted to bind glc, although with a relatively ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erp252
更新日期:2009-01-01 00:00:00
abstract::The activation of calcium signaling is a crucial event for perceiving environmental stress. Colonization by Piriformospora indica, a growth-promoting root endosymbiont, activates cytosolic Ca2+ in Arabidopsis roots. In this study, we examined the role and functional relevance of calcium channels responsible for Ca2+ f...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eraa028
更新日期:2020-05-09 00:00:00
abstract::Ergosterol (a fungal membrane component) was shown to induce transient influx of protons and membrane hyperpolarization in cotyledonary cells of Mimosa pudica L. By contrast, chitosan (a fungal wall component with known elicitor properties) triggered membrane depolarization. In the processes induced by ergosterol, a s...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erj090
更新日期:2006-01-01 00:00:00
abstract::Rice is an important crop that is very sensitive to salinity. However, some varieties differ greatly in this feature, making investigations of salinity tolerance mechanisms possible. The cultivar Pokkali is salinity tolerant and is known to have more extensive hydrophobic barriers in its roots than does IR20, a more s...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/err135
更新日期:2011-08-01 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
pub_type: 杂志文章
doi:10.1093/jexbot/51.350.1595
更新日期:2000-09-01 00:00:00
abstract::Genes encoding pathogenesis-related (PR-) proteins isolated from a cDNA library of Fusarium graminearum-infected wheat spikes of scab-resistant cultivar 'Sumai-3' were transformed into susceptible spring wheat, 'Bobwhite' using a biolistic transformation protocol, with the goal of enhancing levels of resistance agains...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erg110
更新日期:2003-03-01 00:00:00
abstract::Recent years have witnessed a breathtaking increase in the availability of genome sequence data, providing evidence of the highly duplicate nature of eukaryotic genomes. Plants are exceptional among eukaryotic organisms in that duplicate loci compose a large fraction of their genomes, partly because of the frequent oc...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/ers181
更新日期:2012-09-01 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
pub_type: 杂志文章
doi:10.1093/jxb/eru528
更新日期:2015-04-01 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::Polyunsaturated fatty acids (PUFAs) are powerful modulators of several animal ion channels. It is shown here that PUFAs strongly affect the activity of the Slow Vacuolar (SV) channel encoded by the plant TPC1 gene. The patch-clamp technique was applied to isolated vacuoles from carrot taproots and Arabidopsis thaliana...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ers272
更新日期:2012-10-01 00:00:00
abstract::Transcription factors of the NAC family are known to be involved in various developmental processes and in response to environmental stresses. Whereas NAC genes have been widely studied in response to abiotic stresses, little is known about their role in response to biotic stresses, especially in crops. Here, the firs...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ert277
更新日期:2013-11-01 00:00:00
abstract::Potato has been genetically engineered for the production of commercially important ketocarotenoids including astaxanthin (3,3'-dihydroxy 4,4'-diketo-beta-carotene). To support the formation of 3-hydroxylated and 4-ketolated beta-carotene, a transgenic potato line accumulating zeaxanthin due to inactivated zeaxanthin ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erl103
更新日期:2006-01-01 00:00:00
abstract::Plant root rhizosphere interactions with mutualistic microbes are diverse and numerous, having evolved over time in response to selective pressures on plants to attain anchorage and nutrients. These relationships can be considered to be formed through a combination of architectural connections: molecular architecture ...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/erv038
更新日期:2015-04-01 00:00:00
abstract::Previously, it was found that Nep1Mo (a Nep1-like protein from Magnaporthe oryzae) could trigger a variety of plant responses, including stomatal closure, hypersensitive cell death (HCD), and defence-related gene expression, in Nicotiana benthamiana. In this study, it was found that Nep1Mo-induced cell death could be ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru136
更新日期:2014-06-01 00:00:00
abstract::Increasing drought stress poses a severe threat to agricultural productivity. Plants, however, evolved numerous mechanisms to cope with such environmental stress. Here we report that the stress-induced production of a peptide signal contributes to stress tolerance. The expression of phytosulfokine (PSK) peptide precur...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erab017
更新日期:2021-01-20 00:00:00
abstract::In eukaryotes, the RHO superfamily of small G-proteins is implicated in the regulation of cell polarity and growth. Rho of Plants (ROPs)/RACs are plant-specific Rho family proteins that have been shown to regulate cell polarity, auxin transport and responses, ABA signalling, and response to pathogens. A hallmark of RO...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/erv057
更新日期:2015-03-01 00:00:00
abstract::Chloroplasts and mitochondria are indispensable for plant development. They not only provide energy and carbon sources to cells, but also have evolved to become major players in a variety of processes such as amino acid metabolism, hormone biosynthesis and cellular signalling. As semi-autonomous organelles, they conta...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/erw399
更新日期:2016-12-01 00:00:00
abstract::Nitrogen (N) management is a promising agronomic strategy to minimize cadmium (Cd) contamination in crops. However, it is unclear how N affects Cd uptake by plants. Wild-type and iron uptake-inefficient tomato (Solanum lycopersicum) mutant (T3238fer) plants were grown in pH-buffered hydroponic culture to investigate t...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ers036
更新日期:2012-05-01 00:00:00
abstract::ERECTA family genes encode leucine-rich repeat receptor-like kinases that control multiple aspects of plant development such as elongation of aboveground organs, leaf initiation, development of flowers, and epidermis differentiation. These receptors have also been implicated in responses to biotic and abiotic stress, ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ers305
更新日期:2012-11-01 00:00:00
abstract::At the onset of ripening, some fleshy fruits shift the dominant water import pathway from the xylem to the phloem, but the cause for the decline in xylem inflow remains obscure. This study found that xylem-mobile dye movement into grape berries decreased despite transient increases in berry growth and transpiration du...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erw476
更新日期:2017-01-01 00:00:00
abstract::Extracellularly secreted peroxidases in cell suspension culture of tobacco (Nicotiana tabacum L. cv. Bright Yellow-2, cell line BY-2) catalyse the salicylic acid (SA)-dependent formation of active oxygen species (AOS) which, in turn, triggers an increase in cytosolic Ca2+ concentration. Addition of horseradish peroxid...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:
更新日期:2000-04-01 00:00:00
abstract::Voltage dependence of ionic currents and ion fluxes in a walled, turgor-regulating cell were measured in Neurospora crassa. The hyphal morphology of the model organism Neurospora simplifies cable analysis of ionic currents to determine current density for quantitative comparisons with ion fluxes. The ion fluxes were m...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erm204
更新日期:2007-01-01 00:00:00
abstract::Plant cell elongation depends on the physical properties of the primary cell wall. Because xyloglucan endotransglycosylases (XETs) are enzymes that mediate cleavage and rejoining of the beta(1-4)-XG backbone of primary cell wall, they are potentially involved in cell elongation. In this paper, the growth of the barley...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:
更新日期:2000-05-01 00:00:00
abstract::All members of the sulphotransferase (SOT, EC 2.8.2.-) protein family use 3'-phosphoadenosine 5'-phosphosulphate (PAPS) as the sulphuryl donor and transfer the sulphonate group to an appropriate hydroxyl group of several classes of substrates. These enzymes have highly conserved domains and can be found in eubacteria ...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/erh183
更新日期:2004-08-01 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
pub_type: 杂志文章,评审
doi:10.1093/jxb/err241
更新日期:2012-01-01 00:00:00