干旱区生态环境知识资源中心(Arid): Growth and physiological responses of Agriophyllum squarrosum to sand burial stress

Arid

	Growth and physiological responses of Agriophyllum squarrosum to sand burial stress
	Li Jin; Qu Hao; Zhao Halin; Zhou Ruilian; Yun Jianying; Pan Chengchen
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2015
卷号	7 期号:1 页码:94-100
英文摘要	Agriophyllum squarrosum is an annual desert plant widely distributed on mobile and semi-mobile dunes in all the sandy deserts of China. We studied the growth and physiological properties of A. squarrosum seedlings under different sand burial depths in 2010 and 2011 at Horqin Sandy Land, Inner Mongolia to understand the ability and mechanism that A. squarrosum withstands sand burial. The results showed that A. squarrosum had a strong ability to withstand sand burial. Its survival rate, plant height and biomass increased significantly at a burial depth 25% of seedling height and decreased significantly only when the burial depth exceeded the height of the seedlings; some plants still survived even if the burial depth reached 266% of a seedling height. The malondialdehyde (MDA) content and membrane permeability of the plant did not change significantly as long as the burial depth was not greater than the seedling height; lipid peroxidation increased and cell membranes were damaged if the burial depth was increased further. When subjected to sand burial stress, superoxide dismutase (SOD) and peroxidase (POD) activities and free proline content increased in the seedlings, while the catalase (CAT) activity and soluble sugar content decreased. Sand burial did not lead to water stress. Reductions in photosynthetic area and cell membrane damage caused by sand burial may be the major mechanisms increasing mortality and inhibiting growth of the seedling. But the increases in SOD and POD activities and proline content must play a certain role in reducing sand burial damage.
英文关键词	Agriophyllum squarrosum psammophyte sand burial stress growth inhibition physiological response
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5390464
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335475
作者单位	Li Jin, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Qu Hao, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Zhao Halin, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Yun Jianying, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Pan Chengchen, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Zhou Ruilian, Faculty of Life Sciences, Ludong University, Yantai, Shandong 264025, China.
推荐引用方式 GB/T 7714	Li Jin,Qu Hao,Zhao Halin,et al. Growth and physiological responses of Agriophyllum squarrosum to sand burial stress[J],2015,7(1):94-100.
APA	Li Jin,Qu Hao,Zhao Halin,Zhou Ruilian,Yun Jianying,&Pan Chengchen.(2015).Growth and physiological responses of Agriophyllum squarrosum to sand burial stress.Journal of Arid Land,7(1),94-100.
MLA	Li Jin,et al."Growth and physiological responses of Agriophyllum squarrosum to sand burial stress".Journal of Arid Land 7.1(2015):94-100.