Exogenous application of ABA mimic 1 (AM1) improves cold stress tolerance in bermudagrass (Cynodon dactylon)

doi:10.1007/s11240-016-0941-5

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	Exogenous application of ABA mimic 1 (AM1) improves cold stress tolerance in bermudagrass (Cynodon dactylon)
	Cao, Minjie 1,6; Chan, Zhulong 3,4; Cheng, Zhangmin 2,3,4; Jin, Rui 2,3,4; Liu, Xiaodong 5
刊名	PLANT CELL TISSUE AND ORGAN CULTURE
	2016-05-01
卷号	125 期号:2 页码:231-240
关键词	ABA Abiotic stress Bermudagrass Cold tolerance Reactive oxygen species
ISSN号	0167-6857
DOI	10.1007/s11240-016-0941-5
英文摘要	In this study, small molecules AM1, which is an ABA-mimicking ligand, was used to investigate protective effect on cold tolerance of bermudagrass. Results of phenotypic and physiological changes showed that AM1 was an effective compound to increase bermudagrass cold resistance. In contrast to the control, exogenous AM1 pretreatment significantly improved the cold tolerance of bermudagrass seedlings, including promoted growth, decreased membrane conductivity, and increased survival rate in bermudagrass seedlings under cold condition. Moreover, AM1 pretreatment reduced contents of H2O2, O (2) (center dot-) , center dot OH and malondialdehyde, and increased activities of antioxidant enzymes including glutathione peroxidase, glutathione reductase, and superoxide dismutase. Osmolyte like proline accumulated in bermudagrass after AM1 pretreatment, indicating that these substances were also involved in osmotic adjustment in bermudagrass after AM1 treatment. Gene expression analysis indicated that genes encoding antioxidant enzymes and stress inducible proteins were modulated after AM1 pre-treatment. These results showed that exogenous AM1 pretreatment significantly reduced reactive oxygen species level and increased antioxidant enzyme activity to keep the homeostasis of reactive oxygen metabolism, as well as accumulation of proline and modulation of stress inducible genes, resulting in increased cold tolerance on bermudagrass .
资助项目	"the Hundred Talents Program'' of Chinese Academy of Sciences[Y154761O01076] ; "the Hundred Talents Program'' of Chinese Academy of Sciences[Y329631O0263] ; Sino-Africa Joint Research Center, Chinese Academy of Sciences
WOS研究方向	Biotechnology & Applied Microbiology ; Plant Sciences
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000374593400004
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/76]
专题	中国科学院武汉植物园
通讯作者	Chan, Zhulong
作者单位	1.Chinese Acad Sci, Shanghai Ctr Plant Stress Biol, Shanghai 200032, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Sinoafrica Joint Res Ctr, Wuhan 430074, Peoples R China 4.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan 430074, Peoples R China 5.Xinjiang Agr Univ, Coll Agron, Urumqi 830052, Xinjiang, Peoples R China 6.Chinese Acad Sci, Shanghai Inst Plant Physiol & Ecol, Shanghai Inst Biol Sci, Shanghai 200032, Peoples R China
推荐引用方式 GB/T 7714	Cao, Minjie,Chan, Zhulong,Cheng, Zhangmin,et al. Exogenous application of ABA mimic 1 (AM1) improves cold stress tolerance in bermudagrass (Cynodon dactylon)[J]. PLANT CELL TISSUE AND ORGAN CULTURE,2016,125(2):231-240.
APA	Cao, Minjie,Chan, Zhulong,Cheng, Zhangmin,Jin, Rui,&Liu, Xiaodong.(2016).Exogenous application of ABA mimic 1 (AM1) improves cold stress tolerance in bermudagrass (Cynodon dactylon).PLANT CELL TISSUE AND ORGAN CULTURE,125(2),231-240.
MLA	Cao, Minjie,et al."Exogenous application of ABA mimic 1 (AM1) improves cold stress tolerance in bermudagrass (Cynodon dactylon)".PLANT CELL TISSUE AND ORGAN CULTURE 125.2(2016):231-240.