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	Global analysis of gene expression profiles in physic nut (jatropha curcas l.) seedlings exposed to drought stress
	Zhang,Chao1,2; Zhang,Lin1,3; Zhang,Sheng4; Zhu,Shuang1,2; Wu,Pingzhi1; Chen,Yaping1; Li,Meiru1; Jiang,Huawu1; Wu,Guojiang1
刊名	Bmc plant biology
	2015-01-21
卷号	15期号:1
关键词	Physic nut (jatropha curcas l.) Drought stress Gene expression profiles Abscisic acid Waxes and fatty acids Endoplasmic reticulum stress response Senescence
ISSN号	1471-2229
DOI	10.1186/s12870-014-0397-x
通讯作者	Wu,guojiang(wugj@scbg.ac.cn)
英文摘要	Abstractbackgroundphysic nut (jatropha curcas l.) is a small perennial tree or large shrub, which is well-adapted to semi-arid regions and is considered to have potential as a crop for biofuel production. it is now regarded as an excellent model for studying biofuel plants. however, our knowledge about the molecular responses of this species to drought stress is currently limited.resultsin this study, genome-wide transcriptional profiles of roots and leaves of 8-week old physic nut seedlings were analyzed 1, 4 and 7?days after withholding irrigation. we observed a total of 1533 and 2900 differentially expressed genes (degs) in roots and leaves, respectively. gene ontology analysis showed that the biological processes enriched in droughted plants relative to unstressed plants were related to biosynthesis, transport, nucleobase-containing compounds, and cellular protein modification. the genes found to be up-regulated in roots were related to abscisic acid (aba) synthesis and aba signal transduction, and to the synthesis of raffinose. genes related to aba signal transduction, and to trehalose and raffinose synthesis, were up-regulated in leaves. endoplasmic reticulum (er) stress response genes were significantly up-regulated in leaves under drought stress, while a number of genes related to wax biosynthesis were also up-regulated in leaves. genes related to unsaturated fatty acid biosynthesis were down-regulated and polyunsaturated fatty acids were significantly reduced in leaves 7?days after withholding irrigation. as drought stress increased, genes related to ethylene synthesis, ethylene signal transduction and chlorophyll degradation were up-regulated, and the chlorophyll content of leaves was significantly reduced by 7?days after withholding irrigation.conclusionsthis study provides us with new insights to increase our understanding of the response mechanisms deployed by physic nut seedlings under drought stress. the genes and pathways identified in this study also provide much information of potential value for germplasm improvement and breeding for drought resistance.
语种	英语
出版者	BioMed Central
WOS记录号	BMC:10.1186/S12870-014-0397-X
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2374314
专题	中国科学院大学
通讯作者	Wu,Guojiang
作者单位	1.Chinese Academy of Sciences; Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden 2.University of Chinese Academy of Sciences 3.Luoyang Institute of Science and Technology; Department of Environmental Engineering and Chemistry 4.South University of Science and Technology of China; Department of Biology
推荐引用方式 GB/T 7714	Zhang,Chao,Zhang,Lin,Zhang,Sheng,et al. Global analysis of gene expression profiles in physic nut (jatropha curcas l.) seedlings exposed to drought stress[J]. Bmc plant biology,2015,15(1).
APA	Zhang,Chao.,Zhang,Lin.,Zhang,Sheng.,Zhu,Shuang.,Wu,Pingzhi.,...&Wu,Guojiang.(2015).Global analysis of gene expression profiles in physic nut (jatropha curcas l.) seedlings exposed to drought stress.Bmc plant biology,15(1).
MLA	Zhang,Chao,et al."Global analysis of gene expression profiles in physic nut (jatropha curcas l.) seedlings exposed to drought stress".Bmc plant biology 15.1(2015).

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