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 carried out during dormancy (October), breaking dormancy (January) and just before bud bursting (March). The results showed that KNAP2 is more highly expressed in buds that will remain at rest in the spring. Expression of KNAP2 was found in the meristem and in the marginal meristem of the two latest shaped primordia. In the January and March buds, this gene is also expressed in the procambial zone underneath the apical meristem. This study therefore suggests that KNAP2 may be considered as a negative marker of bud growth potential and that the growth inhibition in proximal buds could partially result from differential gene activity. At the morphological level, it was shown that no organogenetic activity took place between October and March as revealed by the constant number of leaf primordia in buds. Nevertheless, those buds likely to grow the following spring had a larger size and fewer hard scales than other buds. This suggests that genetic control may act together with other mechanisms, possibly physical (number of scales) or biochemical, to control bud inhibition.
journal_name
J Exp Botjournal_title
Journal of experimental botanyauthors
Brunel N,Leduc N,Poupard P,Simoneau P,Mauget JC,Viémont JDdoi
10.1093/jxb/erf063keywords:
subject
Has Abstractpub_date
2002-11-01 00:00:00pages
2143-9issue
378eissn
0022-0957issn
1460-2431journal_volume
53pub_type
杂志文章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::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
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更新日期:2019-01-07 00:00:00
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journal_title:Journal of experimental botany
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journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erv282
更新日期:2015-08-01 00:00:00
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journal_title:Journal of experimental botany
pub_type: 杂志文章
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更新日期:2007-01-01 00:00:00
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journal_title:Journal of experimental botany
pub_type: 杂志文章
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更新日期:2016-01-01 00:00:00
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journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
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更新日期:2009-01-01 00:00:00
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journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eraa002
更新日期:2020-04-06 00:00:00
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journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erp256
更新日期:2009-01-01 00:00:00
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journal_title:Journal of experimental botany
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journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erz247
更新日期:2019-09-24 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
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journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erw406
更新日期:2017-04-01 00:00:00
abstract::Although protein phosphorylation is integral to the regulation of protein function in diverse biological responses, relatively little is currently known about the rules that govern phosphorylation in plants. This review will discuss how the data acquired by evolving phosphoproteomic methods are beginning to fill the g...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/erj126
更新日期:2006-01-01 00:00:00
abstract::Pectins are major components of plant primary cell walls. They include homogalacturonans (HGs), which are the most abundant pectin and can be the target of apoplastic enzymes like pectin methylesterases (PMEs) that control their methylesterification level. Several PMEs are expressed in the seed coat of Arabidopsis tha...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erw025
更新日期:2016-04-01 00:00:00
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journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ers176
更新日期:2012-08-01 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
pub_type: 杂志文章
doi:10.1093/jxb/ers020
更新日期:2012-03-01 00:00:00
abstract::Wheat phenology allows escaping from seasonal abiotic stresses including frosts and high temperatures, the latter being forecasted to increase with climate change. The use of marker-based crop models to identify ideotypes has been proposed to select genotypes adapted to specific weather and management conditions and a...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eraa477
更新日期:2020-10-17 00:00:00
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journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ery289
更新日期:2018-10-12 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
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journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eri259
更新日期:2005-10-01 00:00:00
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journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru189
更新日期:2014-08-01 00:00:00
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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::Heat-shock protein 90 (HSP90) is a highly conserved molecular chaperone that is involved in modulating a multitude of cellular processes under both physiological and stress conditions. In Arabidopsis, there are seven HSP90 isoforms (HSP90.1-HSP90.7) that are localized in the cytoplasm/nucleus, mitochondrion, chloropla...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru403
更新日期:2015-01-01 00:00:00
abstract::In this study, the uptake of Na+ into the cytosol of rice (Oryza sativa L. cvs Pokkali and BRRI Dhan29) protoplasts was measured using the acetoxy methyl ester of the fluorescent sodium-binding benzofuran isopthalate, SBFI-AM, and fluorescence microscopy. By means of inhibitor analyses the mechanisms for uptake and se...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eri312
更新日期:2005-12-01 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
pub_type: 杂志文章
doi:10.1093/jxb/erw432
更新日期:2017-01-01 00:00:00
abstract::Plant programmed cell death (PCD) is a genetically controlled process that plays an important role in development and stress responses. Reactive oxygen species (ROS) are key inducers of PCD. The addition of 50 mM H₂O₂ to tobacco Bright Yellow-2 (TBY-2) cell cultures induces PCD. A comparative proteomic analysis of TBY...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ers031
更新日期:2012-05-01 00:00:00
abstract::Pelargonium graveolens is a wild predecessor to rose-scented geranium hybrids prized for their essential oils used as fragrances and flavorings. However, little is known about their biosynthesis. Here we present metabolic evidence that at least two distinct monoterpene biosynthetic pathways contribute to their volatil...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erz397
更新日期:2020-01-01 00:00:00
abstract::The capacity of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) to consume RuBP is a major limitation on the rate of net CO(2) assimilation (A) in C(3) and C(4) plants. The pattern of Rubisco limitation differs between the two photosynthetic types, as shown by comparisons of temperature and CO(2) responses o...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jexbot/53.369.609
更新日期:2002-04-01 00:00:00
abstract::The hormone ethylene regulates a wide range of plant developmental processes and EBF (EIN3-binding F-box) proteins were shown to negatively regulate the ethylene signalling pathway via mediating the degradation of EIN3/EIL proteins. The present study reports on the identification of two tomato F-box genes, Sl-EBF1 and...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erp332
更新日期:2010-03-01 00:00:00