The Effects of Chilling Stress on Antioxidant Enzymes Activities and Proline, Malondialdehyde, Soluble Sugar Contents in Three Paphiopedilum Species

doi:10.1134/S1021443722603184

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	The Effects of Chilling Stress on Antioxidant Enzymes Activities and Proline, Malondialdehyde, Soluble Sugar Contents in Three Paphiopedilum Species
	Ding,Y.; Wang,X. -T.; Wang,F.; Shao,Y. -L.; Zhang,A. -M.; Chang,W.
	2023
发表期刊	RUSSIAN JOURNAL OF PLANT PHYSIOLOGY
ISSN	1608-3407
卷号	70 期号:4 页码:61
摘要	The genus Paphiopedilum with high ornamental and financial values is sensitive to the chilling temperature, but the underlying physiological and biochemistry mechanism(s) are not clear. The maximum quantum yield of photosystem II (PSII) (F-v/F-m), activities of antioxidant enzymes (SOD, POD, and CAT), malondialdehyde (MDA) content, proline and soluble sugar content were studied in P. purpuratum (Lindl.) Stein, P. dianthum Tang & F.T. Wang and P. armeniacum S.C. Chen & F.Y. Liu during chilling treatment. These three Paphiopedilum species displayed significant decreases in F-v/F-m during chilling treatment, especially in P. purpuratum. MDA content was decreased in P. armeniacum and P. dianthum, but significantly increased in P. purpuratum. Proline content was significantly higher in P. armeniacum than in P. dianthum and P. purpuratum, and significantly increased after chilling treatment. The soluble sugar content significantly decreased in P. purpuratum but significantly increased in the other species. SOD activity significantly increased while CAT activity significantly decreased in three species after treatment. POD activity significantly increased in P. purpuratum but significantly decreased in the other species. In addition, principal component analysis (PCA) was performed and three principal components were extracted with a cumulative contribution rate of 83%. PCA suggested that the effects of chilling stress on the physiological parameters were greatest in P. purpuratum and smallest in P. armeniacum. These results indicated that P. purpuratum was the least cold-tolerant and P. armeniacum was the most cold-tolerant among three species of Paphiopedilum. Our findings can provide valuable information for the conservation, cultivation, especially for the breeding of cold resistant varieties of Paphiopedilum.
关键词	Paphiopedilum conservation chilling temperature antioxidant enzymes physiological response principal component analysis PHOTOSYSTEM-II REPAIR OXYGEN PHOTOINHIBITION ACCLIMATION METABOLISM DAMAGE
学科领域	Plant Sciences
DOI	10.1134/S1021443722603184
WOS记录号	WOS:000995852800009
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/74914
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Ding,Y.,Wang,X. -T.,Wang,F.,et al. The Effects of Chilling Stress on Antioxidant Enzymes Activities and Proline, Malondialdehyde, Soluble Sugar Contents in Three Paphiopedilum Species[J]. RUSSIAN JOURNAL OF PLANT PHYSIOLOGY,2023,70(4):61.
APA	Ding,Y.,Wang,X. -T.,Wang,F.,Shao,Y. -L.,Zhang,A. -M.,&Chang,W..(2023).The Effects of Chilling Stress on Antioxidant Enzymes Activities and Proline, Malondialdehyde, Soluble Sugar Contents in Three Paphiopedilum Species.RUSSIAN JOURNAL OF PLANT PHYSIOLOGY,70(4),61.
MLA	Ding,Y.,et al."The Effects of Chilling Stress on Antioxidant Enzymes Activities and Proline, Malondialdehyde, Soluble Sugar Contents in Three Paphiopedilum Species".RUSSIAN JOURNAL OF PLANT PHYSIOLOGY 70.4(2023):61.

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