Abstract:
:Plants have evolved highly complex sensory mechanisms to monitor their surroundings and adapt their growth and development to the prevailing environmental conditions. The integration of information from multiple environmental cues enables the co-ordination of development with favourable seasonal conditions and, ultimately, determines plant form. Light signals, perceived via the phytochrome, cryptochrome and phototropin photoreceptor families, are especially important environmental signals. Redundancy of function among phytochromes and their interaction with blue light photoreceptors enhance sensitivity to light signals, facilitating the accurate detection of, and response to, environmental fluctuations. In this review, current understanding of Arabidopsis phytochrome functions will be summarized, in particular, the interactions among the phytochromes and the integration of light signals with directional and temperature sensing mechanisms.
journal_name
J Exp Botjournal_title
Journal of experimental botanyauthors
Franklin KA,Whitelam GCdoi
10.1093/jxb/erh026keywords:
subject
Has Abstractpub_date
2004-01-01 00:00:00pages
271-6issue
395eissn
0022-0957issn
1460-2431pii
erh026journal_volume
55pub_type
杂志文章,评审abstract::Plants have evolved and adapted to different environments. Dwarfism is an adaptive trait of plants that helps them avoid high-energy costs under unfavourable conditions. The role of gibberellin (GA) in plant development has been well established. Several plant dehydration-responsive element-binding proteins (DREBs) ha...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ers295
更新日期:2012-11-01 00:00:00
abstract::Among dicotyledon families, Chenopodiaceae has the most C(4) species and the greatest diversity in structural forms of C(4). In subfamily Salicornioideae, C(4) photosynthesis has, so far, only been found in the genus Halosarcia which is now included in the broadly circumscribed Tecticornia. Comparative anatomical, cyt...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ern028
更新日期:2008-01-01 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
pub_type: 杂志文章,评审
doi:10.1093/jxb/eru086
更新日期:2014-07-01 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
pub_type: 杂志文章
doi:10.1093/jxb/eru329
更新日期:2014-11-01 00:00:00
abstract::Rapid changes in turgor pressure (P:) and temperature (T:) are giving new information about the mechanisms of plant growth. In the present work, single internode cells of the large-celled alga Chara corallina were used as a model for plant growth. P was changed without altering the chemical environment of the wall whi...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jexbot/51.350.1481
更新日期:2000-09-01 00:00:00
abstract::A major QTL affecting root traits and leaf ABA concentration was identified in maize (Zea mays L.) and named root-ABA1. For this QTL, back-cross-derived lines (BDLs) homozygous either for the (+) or for the (-) allele increasing or decreasing, respectively, root size and leaf ABA concentration, were developed. This st...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erl161
更新日期:2007-01-01 00:00:00
abstract::Tomato, melon, grape, peach, and strawberry primarily accumulate soluble sugars during fruit development. In contrast, kiwifruit (Actinidia Lindl. spp.) and banana store a large amount of starch that is released as soluble sugars only after the fruit has reached maturity. By integrating metabolites measured by gas chr...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ert293
更新日期:2013-11-01 00:00:00
abstract::The possible role of photorespiration as a general stress protection mechanism, and in C(4) plant metabolism, is controversial. In particular, the potential involvement of photorespiration in the acquisition of desiccation tolerance in 'resurrection' plants is unknown. An investigation was carried out into whether pho...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erm247
更新日期:2007-01-01 00:00:00
abstract::This paper gives a summary of a project to characterize a tobacco aquaporin. The cDNA and gene, including the 5' upstream region, for the tobacco aquaporin NtAQP1 has been isolated and the encoded protein characterized. The significance of promoter regions for an abscisic acid- and gibberellic acid-induced gene expres...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jexbot/52.363.1953
更新日期:2001-10-01 00:00:00
abstract::The efficient exclusion of excess Na from the cytoplasm and vacuolar Na(+) accumulation are the main mechanisms for the adaptation of plants to salt stress. This is typically carried out by transmembrane transport proteins that exclude Na(+) from the cytosol in exchange for H(+), a secondary transport process which is...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erp011
更新日期:2009-01-01 00:00:00
abstract::Producing more food per unit of water has never been as important as it is at present, and the demand for water by economic sectors other than agriculture will necessarily put a great deal of pressure on a dwindling resource, leading to a call for increases in the productivity of water in agriculture. This topic has b...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/eru040
更新日期:2014-11-01 00:00:00
abstract::Site-directed mutations have been generated in the pore and voltage sensor regions of the inwardly rectifying potassium channels KAT1 and KST1. The properties of mutant channels have been analysed in Xenopus oocytes, and give insights into the structure-function relations of these channels. ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/48.Special_Issue.415
更新日期:1997-03-01 00:00:00
abstract::The process of selecting certain desirable traits for plant breeding may compromise other potentially important traits, such as defences against pests; however, specific phenotypic changes occurring over the course of domestication are unknown for most domesticated plants. Cranberry (Vaccinium macrocarpon) offers a un...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erq466
更新日期:2011-05-01 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
pub_type: 杂志文章
doi:10.1093/jxb/err375
更新日期:2012-03-01 00:00:00
abstract::Plants can develop root systems with distinct anatomical features and morphological plasticity to forage nutrients distributed heterogeneously in soils. Lateral root proliferation is a typical nutrient-foraging response to a local supply of nitrate, which has been investigated across many plant species. However, the u...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eraa116
更新日期:2020-07-25 00:00:00
abstract::Arlequin (Alq) is a gain-of-function mutant whose most relevant feature is that sepals are able to become fruit-like organs due to the ectopic expression of the ALQ-TAGL1 gene. The role of this gene in tomato fruit ripening was previously demonstrated. To discover new functional roles for ALQ-TAGL1, and most particula...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erz342
更新日期:2019-10-24 00:00:00
abstract::Plant mitochondrial genes contain cis- and trans-group II introns that must be spliced before translation. The mechanism by which these introns are spliced is not well understood. Several families of proteins have been implicated in the intron splicing, of which the pentatricopeptide repeat (PPR) proteins are proposed...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ery432
更新日期:2019-02-05 00:00:00
abstract::Dry matter partitioning is the end result of the flow of assimilates from source organs via a transport path to the sink organs. The dry matter partitioning among the sinks of a plant is primarily regulated by the sinks themselves. The effect of source strength on dry matter partitioning is often not a direct one, but...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/47.Special_Issue.1281
更新日期:1996-08-01 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
pub_type: 杂志文章
doi:10.1093/jxb/erl221
更新日期:2007-01-01 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
pub_type: 杂志文章
doi:10.1093/jxb/erz039
更新日期:2019-03-27 00:00:00
abstract::The determinism of bud bursting pattern along the 1-year-old shoot was studied at the molecular and morphological levels in the apple tree variety 'Lodi' which shows an acrotonic tendency. At the molecular level, the expression of KNAP2, which belongs to the class I KN1-like gene family, was studied. Measurements were...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erf063
更新日期:2002-11-01 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
pub_type: 杂志文章
doi:10.1093/jxb/ern361
更新日期:2009-01-01 00:00:00
abstract::Growing potato tubers or freshly harvested mature tubers have a dormant apical bud. Normally, this dormancy is spontaneously broken after a period of maturation of the tuber, resulting in the growth of a new sprout. Here it is shown that in in vitro-cultured growing and maturing tubers, ethanol can rapidly break this ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eri245
更新日期:2005-09-01 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
pub_type: 杂志文章
doi:10.1093/jxb/erm043
更新日期:2007-01-01 00:00:00
abstract::The activity of the protein kinase STN7, involved in phosphorylation of the light-harvesting complex II (LHCII) proteins, has been reported as being co-operatively regulated by the redox state of the plastoquinone pool and the ferredoxin-thioredoxin (Trx) system. The present study aims to investigate the role of plast...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ery415
更新日期:2019-02-05 00:00:00
abstract::Relatively little is known about programmed cell death (PCD) in plants. It is nonetheless suggested here that tonoplast rupture and the subsequent rapid destruction of the cytoplasm can distinguish two large PCD classes. One class, which is here called 'autolytic', shows this feature, whilst the second class (called '...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/err196
更新日期:2011-10-01 00:00:00
abstract::The transgenic traits associated with the majority of commercial genetically modified crops are focused on improving herbicide and insecticide management practices. The use of the transgenic technology in these crops and the associated chemistry has been the basis of studies that provide evidence for occasional improv...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/err332
更新日期:2012-01-01 00:00:00
abstract::Brassinosteroids (BRs) are essential for many biological processes in plants, however, little is known about their roles in early fruit development. To address this, BR levels were manipulated through the application of exogenous BRs (24-epibrassinolide, EBR) or a BR biosynthesis inhibitor (brassinazole, Brz) and thei...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ern093
更新日期:2008-01-01 00:00:00
abstract::Sugars regulate the expression of many genes at the transcriptional level. In Arabidopsis thaliana, sugars induce or repress the expression of >1800 genes, including the STP1 (SUGAR TRANSPORTER PROTEIN 1) gene, which encodes an H(+)/monosaccharide cotransporter. STP1 transcript levels decrease more rapidly after the a...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru394
更新日期:2015-01-01 00:00:00
abstract::The brownseed mutants (bs(1), bs(2), and bs(4)) of tomato all possess dark testae and deleteriously affect seed germination speed and/or final percentage. Poor germination performance of the bs(1) but not the bs(4) mutant, was due to greater impediment to radicle egress. Testa toughening (bs(1)) was prevented by dryin...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erh112
更新日期:2004-05-01 00:00:00