共查询到20条相似文献,搜索用时 31 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
Expression profile matrix of Arabidopsis transcription factor genes suggests their putative functions in response to environmental stresses 总被引:39,自引:0,他引:39
下载免费PDF全文
![点击此处可从《The Plant cell》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Chen W Provart NJ Glazebrook J Katagiri F Chang HS Eulgem T Mauch F Luan S Zou G Whitham SA Budworth PR Tao Y Xie Z Chen X Lam S Kreps JA Harper JF Si-Ammour A Mauch-Mani B Heinlein M Kobayashi K Hohn T Dangl JL Wang X Zhu T 《The Plant cell》2002,14(3):559-574
9.
10.
11.
The molecular analysis of leaf senescence--a genomics approach 总被引:2,自引:0,他引:2
Buchanan-Wollaston V Earl S Harrison E Mathas E Navabpour S Page T Pink D 《Plant biotechnology journal》2003,1(1):3-22
Senescence in green plants is a complex and highly regulated process that occurs as part of plant development or can be prematurely induced by stress. In the last decade, the main focus of research has been on the identification of senescence mutants, as well as on genes that show enhanced expression during senescence. Analysis of these is beginning to expand our understanding of the processes by which senescence functions. Recent rapid advances in genomics resources, especially for the model plant species Arabidopsis, are providing scientists with a dazzling array of tools for the identification and functional analysis of the genes and pathways involved in senescence. In this review, we present the current understanding of the mechanisms by which plants control senescence and the processes that are involved. 相似文献
12.
13.
Maryam Sarwat Afsar Raza Naqvi Parvaiz Ahmad Muhammad Ashraf Nudrat Aisha Akram 《Biotechnology advances》2013
Ageing or senescence is an intricate and highly synchronized developmental phase in the life of plant parts including leaf. Senescence not only means death of a plant part, but during this process, different macromolecules undergo degradation and the resulting components are transported to other parts of the plant. During the period from when a leaf is young and green to the stage when it senesces, a multitude of factors such as hormones, environmental factors and senescence associated genes (SAGs) are involved. Plant hormones including salicylic acid, abscisic acid, jasmonic acid and ethylene advance leaf senescence, whereas others like cytokinins, gibberellins, and auxins delay this process. The environmental factors which generally affect plant development and growth, can hasten senescence, the examples being nutrient dearth, water stress, pathogen attack, radiations, high temperature and light intensity, waterlogging, and air, water or soil contamination. Other important influences include carbohydrate accumulation and high carbon/nitrogen level. To date, although several genes involved in this complex process have been identified, still not much information exists in the literature on the signalling mechanism of leaf senescence. Now, the Arabidopsis mutants have paved our way and opened new vistas to elucidate the signalling mechanism of leaf senescence for which various mutants are being utilized. Recent studies demonstrating the role of microRNAs in leaf senescence have reinforced our knowledge of this intricate process. This review provides a comprehensive and critical analysis of the information gained particularly on the roles of several plant growth regulators and microRNAs in regulation of leaf senescence. 相似文献
14.
15.
16.
17.
Molecular events in senescing Arabidopsis leaves 总被引:16,自引:0,他引:16
18.
19.
20.
Leaf senescence is one of the key stages of plant leaf development. It is a highly complex but ordered process involving expression
of large scale senescence associated genes, and its molecular mechanisms still remain unclear. By using suppression subtractive
hybridization, 815 ESTs that are up-regulated at the onset of rice flag leaf senescence have been isolated. A total of 533
unigenes have been confirmed by macroarray detection and sequencing. 183 of these unigenes have GO annotations, involved in
macromolecule metabolism, protein biosynthesis regulation, energy metabolism, gene expression regulations, detoxification,
pathogenicity and stress, cytoskeleton organization and flower development. Another 121 unigenes co-localized with previously
reported known stay-green QTLS. RT-PCR analysis on the other novel genes indicated that they can be up-regulated in natural
early senescence and induced by hormone. Our results indicate that senescence is closely related to various metabolic pathways,
thus providing new insight into the onset of leaf senescence mechanism.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. 相似文献