Constitutive production of nitric oxide leads to enhanced drought stress resistance and extensive transcriptional reprogramming in Arabidopsis

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	Constitutive production of nitric oxide leads to enhanced drought stress resistance and extensive transcriptional reprogramming in Arabidopsis
	Shi, Haitao; Ye, Tiantian; Zhu, Jian-Kang; Chan, Zhulong
刊名	JOURNAL OF EXPERIMENTAL BOTANY
	2014
英文摘要	Nitric oxide (NO) is involved in plant responses to many environmental stresses. Transgenic Arabidopsis lines that constitutively express rat neuronal NO synthase (nNOS) were described recently. In this study, it is reported that the nNOS transgenic Arabidopsis plants displayed high levels of osmolytes and increased antioxidant enzyme activities. Transcriptomic analysis identified 601 or 510 genes that were differentially expressed as a consequence of drought stress or nNOS transformation, respectively. Pathway and gene ontology (GO) term enrichment analyses revealed that genes involved in photosynthesis, redox, stress, and phytohormone and secondary metabolism were greatly affected by the nNOS transgene. Several CBF genes and members of zinc finger gene families, which are known to regulate transcription in the stress response, were changed by the nNOS transgene. Genes regulated by both the nNOS transgene and abscisic acid (ABA) treatments were compared and identified, including those for two ABA receptors (AtPYL4 and AtPYL5). Moreover, overexpression of AtPYL4 and AtPYL5 enhanced drought resistance, antioxidant enzyme activity, and osmolyte levels. These observations increase our understanding of the role of NO in drought stress response in Arabidopsis.
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/405]
专题	中国科学院武汉植物园
推荐引用方式 GB/T 7714	Shi, Haitao,Ye, Tiantian,Zhu, Jian-Kang,et al. Constitutive production of nitric oxide leads to enhanced drought stress resistance and extensive transcriptional reprogramming in Arabidopsis[J]. JOURNAL OF EXPERIMENTAL BOTANY,2014.
APA	Shi, Haitao,Ye, Tiantian,Zhu, Jian-Kang,&Chan, Zhulong.(2014).Constitutive production of nitric oxide leads to enhanced drought stress resistance and extensive transcriptional reprogramming in Arabidopsis.JOURNAL OF EXPERIMENTAL BOTANY.
MLA	Shi, Haitao,et al."Constitutive production of nitric oxide leads to enhanced drought stress resistance and extensive transcriptional reprogramming in Arabidopsis".JOURNAL OF EXPERIMENTAL BOTANY (2014).