气候变化领域集成服务门户(CCPortal): Physiological response of Kobresia pygmaea to temperature changes on the Qinghai-Tibet Plateau

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DOI	10.1186/s12870-022-03428-9
	Physiological response of Kobresia pygmaea to temperature changes on the Qinghai-Tibet Plateau
	Xu, Haiyan; Li, Lisha; Mao, Nan; Gan, Zipeng; Xue, Shouye; Li, Xiaoming; Zhang, Bo; Liu, Guimin; Wu, Xiaodong
通讯作者	Wu, XD (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Cryosphere Res Stn Qinghai Tibet Plateau, Lanzhou, Peoples R China.
发表日期	2022
ISSN	1471-2229
卷号	22 期号:1
英文摘要	Background The Qinghai-Tibetan Plateau is experiencing rapid climate warming, which may further affect plant growth. However, little is known about the plant physiological response to climate change. Results Here, we select the Kobresia pygmaea, an important perennial Cyperaceae forage, to examine the physiological indices to temperature changes in different growing months. We determined the contents of malondialdehyde, proline, soluble sugars, superoxide dismutase, peroxidation, and catalase activity in leaves and roots of Kobresia pygmaea at 25celcius, 10celcius, 4celcius and 0celcius from June to September in 2020. The results showed that the content of osmotic adjustment substances in the leaves and roots of Kobresia pygmaea fluctuated greatly with experimental temperature in June and September. The superoxide dismutase activity in the leaves and roots of the four months changed significantly with temperatures. The peroxidation activity in the leaves was higher than that in the roots, while the catalase activity in leaves and roots fluctuates greatly during June, with a relative stable content in other months. Membership function analysis showed that higher temperatures were more harmful to plant leaves, and lower temperatures were more harmful to plant roots. The interaction of organs, growing season and stress temperature significantly affected the physiological indicators. Conclusions The physiological indicators of Kobresia pygmaea can actively respond to temperature changes, and high temperature can reduce the stress resistance Kobresia pygmaea. Our findings suggest that the Kobresia pygmaea has high adaptability to climate warming in the future.
关键词	STRESS TOLERANCE CITRUS-SINENSIS CLIMATE-CHANGE PROLINE MECHANISMS PATTERNS PLANTS ACID
英文关键词	Kobresia pygmaea; Physiological characteristics; Seasonal changes; Osmotic adjustment substances; Antioxidant enzyme activity
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000746615500003
来源期刊	BMC PLANT BIOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254356
作者单位	[Xu, Haiyan; Li, Lisha; Mao, Nan; Gan, Zipeng; Xue, Shouye; Li, Xiaoming; Zhang, Bo; Liu, Guimin] Lanzhou Jiaotong Univ, Sch Environm & Municipal Engn, Lanzhou, Peoples R China; [Xu, Haiyan; Wu, Xiaodong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Cryosphere Res Stn Qinghai Tibet Plateau, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Xu, Haiyan,Li, Lisha,Mao, Nan,et al. Physiological response of Kobresia pygmaea to temperature changes on the Qinghai-Tibet Plateau[J]. 中国科学院西北生态环境资源研究院,2022,22(1).
APA	Xu, Haiyan.,Li, Lisha.,Mao, Nan.,Gan, Zipeng.,Xue, Shouye.,...&Wu, Xiaodong.(2022).Physiological response of Kobresia pygmaea to temperature changes on the Qinghai-Tibet Plateau.BMC PLANT BIOLOGY,22(1).
MLA	Xu, Haiyan,et al."Physiological response of Kobresia pygmaea to temperature changes on the Qinghai-Tibet Plateau".BMC PLANT BIOLOGY 22.1(2022).