Abstract：
:Several breeding initiatives have sought to improve flag leaf performance as its health and physiology are closely correlated to rice yield. Previous studies have described natural variation of photosynthesis for flag leaves; however, none have examined their performance under the non-steady-state conditions that prevail in crop fields. Photosynthetic induction is the transient response of photosynthesis to a change from low to high light. Rice flag leaf photosynthesis was measured in both steady- and non-steady-state conditions to characterize natural variation. Between the lowest and highest performing accession there was a 152% difference for average CO2 assimilation during induction (Ā300), a 77% difference for average intrinsic water-use efficiency during induction (iWUEavg), and a 185% difference for the speed of induction (IT50), indicating plentiful variation. No significant correlation was found between steady- and non-steady-state photosynthetic traits. Additionally, neither measures of steady-state or non-steady-state photosynthesis of flag leaves correlated with the same measures of leaves in the vegetative growth stage, with the exception of iWUEavg. Photosynthetic induction was measured at six [CO2], to determine biochemical and diffusive limitations to photosynthesis in vivo. Photosynthetic induction in rice flag leaves was limited primarily by biochemistry.
journal_name
J Exp Botjournal_title
Journal of experimental botanyauthors
Acevedo-Siaca L,Coe R,Quick WP,Long SPdoi
10.1093/jxb/eraa520subject
Has Abstractpub_date
2020-11-07 00:00:00eissn
0022-0957issn
1460-2431pii
5960139pub_type
杂志文章abstract：:Protein phosphorylation is key to the regulation of many proteins. Altered protein activity often requires the interaction of the phosphorylated protein with a class of "adapters" known as 14-3-3 proteins. This review will cover aspects of 14-3-3 interaction with key proteins of carbon and nitrogen metabolism such as ...
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/erg057
更新日期：2003-01-01 00:00:00
abstract：:Many legumes have the capacity to enter into a symbiotic association with soil bacteria generically called 'rhizobia' that results in the formation of new lateral organs on roots called nodules within which the rhizobia fix atmospheric nitrogen (N). Up to 200 million tonnes of N per annum is fixed by this association....
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/erv357
更新日期：2015-08-01 00:00:00
abstract：:We previously identified the W-box-like-4 (Wbl-4) element (GTAGTGACTCAT), one of six Wbl elements in the BjC-P promoter of the unusual chitinase gene BjCHI1 from Brassica juncea, as the core element responsive to fungal infection. Here, we report the isolation and characterization of the cognate transcription factor i...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erw240
更新日期：2016-08-01 00:00:00
abstract：:Abscission is triggered by multiple environmental and developmental cues, including endogenous plant hormones. KNOTTED-LIKE HOMEOBOX (KNOX) transcription factors (TFs) play an important role in controlling abscission in plants. However, the underlying molecular mechanism of KNOX TFs in abscission is largely unknown. H...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eraa162
更新日期：2020-07-06 00:00:00
abstract：:Plant stress studies are more and more based on gene expression. The analysis of gene expression requires sensitive, precise, and reproducible measurements for specific mRNA sequences. Real-time RT-PCR is at present the most sensitive method for the detection of low abundance mRNA. To avoid bias, real-time RT-PCR is r...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eri285
更新日期：2005-11-01 00:00:00
abstract：:A cDNA clone encoding a 64-amino acid type 3 metallothionein protein, designated GhMT3a, was isolated from cotton (Gossypium hirsutum) by cDNA library screening. Northern blot analysis indicated that mRNA accumulation of GhMT3a was up-regulated not only by high salinity, drought, and low temperature stresses, but also...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/ern291
更新日期：2009-01-01 00:00:00
abstract：:In peach trees (Prunus persica L. Batsch cv. Redhaven), sorbitol is a primary photosynthetic product and may play an important role in the budbreak process. Surprisingly, before budbreak (from January to early March), the concentration of sorbitol in the xylem sap decreases, while that of hexoses (glucose and fructose...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erh087
更新日期：2004-04-01 00:00:00
abstract：:Here, a comprehensive proteomic analysis of the chromoplasts purified from sweet orange using Nycodenz density gradient centrifugation is reported. A GeLC-MS/MS shotgun approach was used to identify the proteins of pooled chromoplast samples. A total of 493 proteins were identified from purified chromoplasts, of which...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/err140
更新日期：2011-11-01 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：:Wood formation in trees is a dynamic process that is strongly affected by environmental factors. However, the impact of ozone on wood is poorly documented. The objective of this study was to assess the effects of ozone on wood formation by focusing on the two major wood components, cellulose and lignin, and analysing ...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/err047
更新日期：2011-06-01 00:00:00
abstract：:This perspective summarizes the presentations and discussions at the ' International Symposium on Synthetic Biology in Photosynthesis Research', which was held in Shanghai in 2018. Leveraging the current advanced understanding of photosynthetic systems, the symposium brain-stormed about the redesign and engineering of...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eraa075
更新日期：2020-04-06 00:00:00
abstract：:The relatively better performance of mycorrhizal plants subjected to drought stress has commonly been linked to improved root water uptake through the fungal regulation of plant aquaporins and hormones. In this study, we examined the role of ectomycorrhizal fungi in plant water relations and plant hormonal balance und...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erz389
更新日期：2019-11-18 00:00:00
abstract：:The impact of sulphur limitation on the remobilization of endogenous S compounds during the rosette stage of oilseed rape, and the interactions with N availability on these processes, were examined using a long-term (34)SO(4)(2-) labelling method combined with a study of leaf senescence progression (using SAG12/Cab as...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erp172
更新日期：2009-01-01 00:00:00
abstract：:The high efficiency of C4 photosynthesis relies on spatial division of labor, classically with initial carbon fixation in the mesophyll and carbon reduction in the bundle sheath. By employing grinding and serial filtration over liquid nitrogen, we enriched C4 tissues along a developing leaf gradient. This method treat...
journal_title：Journal of experimental botany
pub_type： 杂志文章,meta分析
doi：10.1093/jxb/erw463
更新日期：2017-01-01 00:00:00
abstract：:Short-chain esters contribute to the blend of volatiles that define the strawberry aroma. The last step in their biosynthesis involves an alcohol acyltransferase that catalyses the esterification of an acyl moiety of acyl-CoA with an alcohol. This study identified a novel strawberry alcohol acyltransferase gene (FaAAT...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/ers120
更新日期：2012-06-01 00:00:00
abstract：:Biochar is a promising soil additive for use in support of sustainable crop production. However, the high level of heterogeneity in biochar properties and the variations in soil composition present significant challenges to the successful uptake of biochar technologies in diverse agricultural soils. An improved unders...
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/erz301
更新日期：2020-01-07 00:00:00
abstract：:Alloplasmic lines of Brassica napus with rearranged Arabidopsis thaliana mitochondrial DNA are male sterile and vegetatively altered compared with B. napus cv. Hanna. The CMS lines contain pure nuclear and plastid genomes from B. napus. Cross-sections of leaves revealed elevated starch accumulation and a higher number...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eri120
更新日期：2005-04-01 00:00:00
abstract：:Soil salinity and drought compromise water uptake and lead to osmotic adjustment in xero-halophyte plant species. These important environmental constraints may also have specific effects on plant physiology. Stress-induced accumulation of osmocompatible solutes was analysed in two Tunisian populations of the Mediteran...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/ern040
更新日期：2008-01-01 00:00:00
abstract：:Climate change has brought severe challenges to agriculture. It is anticipated that there will be a drop in crop yield - including that of soybean - due to climatic stress factors that include drastic fluctuations in temperature, drought, flooding and high salinity. Genomic information on soybean has been accumulating...
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/erw348
更新日期：2017-04-01 00:00:00
abstract：:At least seven isoforms (PsABI3-1 to PsABI3-7) of a putative, pea ABI3-like factor, originated by alternative splicing, have been identified after cDNA cloning. A similar variability had previously only been described for monocot genes. The full-length isoform, PsABI3-1, contains the typical N-terminal acidic domains ...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erp038
更新日期：2009-01-01 00:00:00
abstract：:Anthocyanins are important plant pigments that fulfil many physiological and ecological functions. Anthocyanin biosynthesis is controlled by numerous regulatory factors at the transcriptional level. Jasmonates (JAs) has been shown to induce anthocyanin accumulation in several plant species, however, the molecular mech...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erp223
更新日期：2009-01-01 00:00:00
abstract：:Four glutathione S-transferase (GST) genes, NbGSTU1, NbGSTU2, NbGSTU3, and NbGSTF1, were amplified from cDNA of Nicotiana benthamiana leaves infected with Colletotrichum destructivum using primers based on conserved regions of N. tabacum GST sequences. Expression of NbGSTU1 and NbGSTU3 increased progressively during i...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eri145
更新日期：2005-06-01 00:00:00
abstract：:The interface between the atmosphere and leaves and fruits is formed by the lipophilic plant cuticle, which seals the outer epidermal cell walls, thus significantly reducing water loss and uptake of dissolved solutes deposited on the cuticle surface. Different experimental and theoretical approaches for quantifying ba...
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/erx282
更新日期：2017-11-09 00:00:00
abstract：:Flavonoids are plant pigments that provide health benefits for human and animal consumers. Understanding why domesticated crops have altered pigmentation patterns and unraveling the molecular/genetic mechanisms that underlie this will facilitate the breeding of new (healthier) varieties. We present an overview of chan...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erz141
更新日期：2019-08-07 00:00:00
abstract：:Nitrogen is one of the most important nutrients for plants and, in natural soils, its availability is often a major limiting factor for plant growth. Here we examine the effect of different forms of nitrogen nutrition and of photorespiration on gene expression in the model legume Lotus japonicus with the aim of identi...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erw170
更新日期：2016-05-01 00:00:00
abstract：:Natural vegetation is predicted to suffer from extreme heat events as a result of global warming. In this study, we focused on the immediate response to heat stress. Photosynthesis and volatile emissions were measured in the leaves of tobacco (Nicotiana tabacum cv. Wisconsin 38) after exposure to heat shock treatments...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erz255
更新日期：2019-09-24 00:00:00
abstract：:Plant species capable of hyper-accumulating heavy metals are of considerable interest for phytoremediation, and differ in their ability to accumulate metals from the environment. This work aims to examine (i) arsenic accumulation in three fern species [Chinese brake fern (Pteris vittata L.), slender brake fern (Pteris...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eri134
更新日期：2005-05-01 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：:The control of sugar beet (Beta vulgaris L.) germination by plant hormones was studied by comparing fruits and seeds. Treatment of sugar beet fruits and seeds with gibberellins, brassinosteroids, auxins, cytokinins, and jasmonates or corresponding hormone biosynthesis inhibitors did not appreciably affect radicle emer...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erm162
更新日期：2007-01-01 00:00:00
abstract：:Previous studies of highly branched mutants in pea (rms1-rms5), Arabidopsis thaliana (max1-max4), petunia (dad1-dad3), and rice (d3, d10, htd1/d17, d14, d27) identified strigolactones or their derivates (SLs), as shoot branching inhibitors. This recent discovery offers the possibility of using SLs to regulate branchin...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erq133
更新日期：2010-06-01 00:00:00
