干旱区生态环境知识资源中心(Arid): Effects of short-term heat stress on PSII and subsequent recovery for senescent leaves of Vitis vinifera L. cv. Red Globe

Arid

	Effects of short-term heat stress on PSII and subsequent recovery for senescent leaves of Vitis vinifera L. cv. Red Globe
	Zhang Kun; Chen Baihong; Hao Yan; Yang Rui; Wang Yuan
来源期刊	Journal of Integrative Agriculture
ISSN	2095-3119
出版年	2018
卷号	17 期号:12 页码:2683-2693
英文摘要	Heat stress occurs frequently in energy-saving sunlight greenhouses (ESSG) at the late growth stage. Three-year delayed cultivation (DC) of the Red Globe cultivar of Vitis vinifera L. was used to clarify the physiological mechanisms of short-term heat stress on PSII and subsequent recovery from heat stress. By November, the photosynthetic function had declined and the fall in transpiration rate (E) with heating time increased the possibility of heat damage. In July, the most obvious increase was in the relative variable fluorescence at J point at 40°C, and in November it changed to K point. The 5 min of heat treatment resulted in a significant increase of the relative variable fluorescence at 0.3 ms (W_k), and after 10 min of heat treatment, the number of reactive centres per excited cross section (RC/CS_o), probability that a trapped exciton moves an electron into the electron transport chain beyond Q_A~- (at t=0) (Psi_o) and quantum yield of electron transport at t=0 (phi_(Eo)) decreased significantly (P<0.05), suggesting that the reaction centre, donor and acceptor side of photosystem II (PSII) were all significantly inhibited (P<0.05) and that the thermal stability of the photosynthetic mechanism was reduced. The inhibition of energy fluxes for senescent leaves in November was earlier and more pronounced than that for healthy leaves, which did not recover from heat stress of more than 15 min after 2 h recovery at room temperature.
英文关键词	short-term heat stress leaf senescence chlorophyll a fluorescence arid desert region delayed cultivation
类型	Article
语种	英语
开放获取类型	Other Gold
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:6393684
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336046
作者单位	Zhang Kun, Horticulture College, Gansu Agricultural University;;Institute of Fruit and Floriculture Research, Gansu Academy of Agricultural Sciences, ;;, Lanzhou;;Lanzhou, ;; 730070;;730070.; Chen Baihong, Horticulture College, Gansu Agricultural University, Lanzhou, Gansu 730070, China.; Hao Yan, Institute of Fruit and Floriculture Research, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China.; Yang Rui, Institute of Fruit and Floriculture Research, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China.; Wang Yuan, Institute of Fruit and Floriculture Research, Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China.
推荐引用方式 GB/T 7714	Zhang Kun,Chen Baihong,Hao Yan,et al. Effects of short-term heat stress on PSII and subsequent recovery for senescent leaves of Vitis vinifera L. cv. Red Globe[J],2018,17(12):2683-2693.
APA	Zhang Kun,Chen Baihong,Hao Yan,Yang Rui,&Wang Yuan.(2018).Effects of short-term heat stress on PSII and subsequent recovery for senescent leaves of Vitis vinifera L. cv. Red Globe.Journal of Integrative Agriculture,17(12),2683-2693.
MLA	Zhang Kun,et al."Effects of short-term heat stress on PSII and subsequent recovery for senescent leaves of Vitis vinifera L. cv. Red Globe".Journal of Integrative Agriculture 17.12(2018):2683-2693.