A MYB-related transcription factor from sheepgrass, LcMYB2, promotes seed germination and root growth under drought stress

doi:10.1186/s12870-019-2159-2

	A MYB-related transcription factor from sheepgrass, LcMYB2, promotes seed germination and root growth under drought stress
	Zhao, Pincang 1; Hou, Shenglin 2; Guo, Xiufang ; Jia, Junting 4; Yang, Weiguang 3; Liu, Zhujiang ; Chen, Shuangyan ; Li, Xiaoxia ; Qi, Dongmei ; Liu, Gongshe; Cheng, Liqin
	2019
发表期刊	BMC PLANT BIOLOGY
ISSN	1471-2229
卷号	19 期号:1
摘要	Background: Drought is one of the most serious factors limiting plant growth and production. Sheepgrass can adapt well to various adverse conditions, including drought. However, during germination, sheepgrass young seedlings are sensitive to these adverse conditions. Therefore, the adaptability of seedlings is very important for plant survival, especially in plants that inhabit grasslands or the construction of artificial grassland. Results: In this study, we found a sheepgrass MYB-related transcription factor, LcMYB2 that is up-regulated by drought stress and returns to a basal level after rewatering. The expression of LcMYB2 was mainly induced by osmotic stress and was localized to the nucleus. Furthermore, we demonstrate that LcMYB2 promoted seed germination and root growth under drought and ABA treatments. Additionally, we confirmed that LcMYB2 can regulate LcDREB2 expression in sheepgrass by binding to its promoter, and it activates the expression of the osmotic stress marker genes AtDREB2A, AtLEA14 and AtP5CS1 by directly binding to their promoters in transgenic Arabidopsis. Conclusions: Based on these results, we propose that LcMYB2 improves plant drought stress tolerance by increasing the accumulation of osmoprotectants and promoting root growth. Therefore, LcMYB2 plays pivotal roles in plant responses to drought stress and is an important candidate for genetic manipulation to create droughtresistant crops, especially during seed germination.
关键词	LcMYB2 Seed germination Root growth Osmoprotectant
学科领域	Plant Sciences
DOI	10.1186/s12870-019-2159-2
收录类别	SCI
语种	英语
WOS关键词	SALT-INDUCED GENE ; LOW-TEMPERATURE ; ABIOTIC STRESS ; ARABIDOPSIS-THALIANA ; OVER-EXPRESSION ; PROLINE ACCUMULATION ; SIGNAL-TRANSDUCTION ; ENHANCES TOLERANCE ; DEHYDRATION ; DOMAIN
WOS研究方向	Plant Sciences
WOS记录号	WOS:000505238400005
出版者	BMC
文献子类	Article
出版地	LONDON
资助机构	National Basic Research Program of China (973 program)National Basic Research Program of China [2014CB138704] ; Project of Science and Technology Service Network Initiative of the Chinese Academy of Sciences (STS) [KFJ-EW-STS-119] ; Kulun Banner Science and Technology Poverty Alleviation Project of Chinese Academy of Sciences ; Science and Technology Major Project of Inner Mongolia Autonomous Region of China
作者邮箱	liugs@ibcas.ac.cn ; lqcheng@ibcas.ac.cn
作品OA属性	Green Submitted, Green Published, gold
引用统计	被引频次：27[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/19875
专题	中科院北方资源植物重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing, Peoples R China 2.Hebei Univ Econ & Business, Coll Management Sci & Engn, Shijiazhuang, Hebei, Peoples R China 3.Hebei Acad Agr & Forestry Sci, Inst Millet Crops, Shijiazhuang, Hebei, Peoples R China 4.Heilongjiang Acad Agr Sci, Branch Anim Husb & Vet, Qiqihar, Peoples R China 5.Guangdong Acad Agr Sci, Agrobiol Gene Res Ctr, Guangzhou, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Pincang,Hou, Shenglin,Guo, Xiufang,et al. A MYB-related transcription factor from sheepgrass, LcMYB2, promotes seed germination and root growth under drought stress[J]. BMC PLANT BIOLOGY,2019,19(1).
APA	Zhao, Pincang.,Hou, Shenglin.,Guo, Xiufang.,Jia, Junting.,Yang, Weiguang.,...&Cheng, Liqin.(2019).A MYB-related transcription factor from sheepgrass, LcMYB2, promotes seed germination and root growth under drought stress.BMC PLANT BIOLOGY,19(1).
MLA	Zhao, Pincang,et al."A MYB-related transcription factor from sheepgrass, LcMYB2, promotes seed germination and root growth under drought stress".BMC PLANT BIOLOGY 19.1(2019).

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