干旱区生态环境知识资源中心(Arid): 白刺、沙蒿幼苗膜透性和膜保护系统对不同历时风沙流吹袭的响应

Arid

	白刺、沙蒿幼苗膜透性和膜保护系统对不同历时风沙流吹袭的响应
其他题名	Response of Nitraria tangutorum and Artemisia sphaerocephala seedling membrane permeability and membrane protection system to different duration times of wind-sand flow
	侍新萍; 马彦军; 马瑞; 魏林源; 杨永义; 张莹花; 唐卫东
来源期刊	草业科学
ISSN	1001-0629
出版年	2021
卷号	38 期号:1 页码:44-51
中文摘要	白刺(Nitraria tangutorum)和沙蒿(Artemisia sphaerocephala)是干旱荒漠区分布较广的沙生植物,生境内风沙流发生频次高、强度大,了解风沙流胁迫下白刺和沙蒿的生理响应对认识沙区植物抗风沙流机理具有重要意义。本研究采用风洞模拟试验,以12 m·s~(-1)的风沙流对白刺和沙蒿幼苗进行0(CK)、10、20和30 min的吹袭胁迫,分析吹袭胁迫对叶片膜透性和膜保护系统的影响。结果表明,随风沙流吹袭时间增加,白刺丙二醛(MDA)和可溶性蛋白(SP)含量逐渐下降,膜透性先降后升,超氧化物歧化酶(SOD)和过氧化氢酶(CAT)活性在10和30 min胁迫下同时增加,过氧化物酶(POD)活性、可溶性糖(SS)和脯氨酸(Pro)含量逐渐上升,起到了共同防止膜脂过氧化作用;沙蒿 MDA含量先降后升,SP含量显著降低(P < 0.05),CAT活性仅在20 min胁迫下显著增加(P < 0.05),膜透性和POD活性逐渐增大,20和30 min胁迫下的Pro含量小幅度增加,在减轻细胞膜受损过程中起重要作用。
英文摘要	Nitraria tangutorum and Artemisia sphaerocephala are widely distributed psammophytes in arid desert areas, where the frequency and intensity of wind-sand flow are high. Investigating the physiological response of N. tangutorum and A. sphaerocephala to stress caused by wind-sand flow is significantly important to understand the mechanism of wind-sand flow resistance of plants in sandy areas. In this study, using wind tunnel simulation test, the two plants were stressed under 12 m·s~(-1) wind-sand flow for 0, 10, 20, and 30 min. Then, two indices leaf membrane permeability and membrane protection were determined. The results showed that with the increase of wind-sand flow blowing, in N. tangutorum, malonaldehyde (MDA) and soluble protein (SP) decreased, membrane permeability decreased first and then increased, superoxide dismutase (SOD) and catalase (CAT) activities increased simultaneously under 10 and 30 min stress, and Peroxidase (POD), soluble sugar (SS), and proline (Pro) contents increased, which prevented membrane lipid peroxidation in N. tangutorum. In contrast, in A. sphaerocephala, MDA content decreased first and then increased, SP was significantly reduced (P < 0.05), CAT activity significantly increased under 20 min stress (P < 0.05), membrane permeability and POD activity increased, and Pro increased slightly under the 20 and 30 min stress, which played a major role in reducing cell membrane damage.
中文关键词	风洞试验 ; 风沙流胁迫 ; 膜透性 ; 保护酶活性 ; 渗透调节物质
英文关键词	wind tunnel test wind-drift sand stress membrane permeability protective enzyme osmoregulation substance
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6910580
来源机构	甘肃农业大学 ; 甘肃省治沙研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354167
作者单位	侍新萍, 甘肃农业大学林学院, 兰州, 甘肃 730070, 中国. 马彦军, 甘肃农业大学林学院, 兰州, 甘肃 730070, 中国. 马瑞, 甘肃农业大学林学院, 兰州, 甘肃 730070, 中国. 杨永义, 甘肃农业大学林学院, 兰州, 甘肃 730070, 中国. 魏林源, 甘肃省治沙研究所, 荒漠化与风沙灾害防治国家级重点实验室, 兰州, 甘肃 730070, 中国. 张莹花, 甘肃省治沙研究所, 荒漠化与风沙灾害防治国家级重点实验室, 兰州, 甘肃 730070, 中国. 唐卫东, 甘肃省治沙研究所, 荒漠化与风沙灾害防治国家级重点实验室, 兰州, 甘肃 730070, 中国.
推荐引用方式 GB/T 7714	侍新萍,马彦军,马瑞,等. 白刺、沙蒿幼苗膜透性和膜保护系统对不同历时风沙流吹袭的响应[J]. 甘肃农业大学, 甘肃省治沙研究所,2021,38(1):44-51.
APA	侍新萍.,马彦军.,马瑞.,魏林源.,杨永义.,...&唐卫东.(2021).白刺、沙蒿幼苗膜透性和膜保护系统对不同历时风沙流吹袭的响应.草业科学,38(1),44-51.
MLA	侍新萍,et al."白刺、沙蒿幼苗膜透性和膜保护系统对不同历时风沙流吹袭的响应".草业科学 38.1(2021):44-51.