干旱区生态环境知识资源中心(Arid): Effects of sand burial on survival and growth of Artemisia halodendron and its physiological response

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	Effects of sand burial on survival and growth of Artemisia halodendron and its physiological response
	Zhao Halin; Qu Hao; Zhou Ruilian; Yun Jianying; Li Jin
来源期刊	Sciences in Cold and Arid Regions
ISSN	1674-3822
出版年	2015
卷号	7 期号:1 页码:59-66
英文摘要	There is a great deal of literature on the effects of sand burial upon the survival and growth of desert plants, but the physiological adaption mechanisms of desert plants to sand burial have as yet rarely been studied. Artemisia halodendron is widely distributed in the semi-arid deserts of China and is a dominant species in semi-moving dune vegetation. The growth and physiological properties of A. halodendron seedlings under different sand burial depths were studied in 2010 and 2011 in the Horqin Sand Land, Inner Mongolia, to better understand the ability and physiological mechanism by which desert plants withstand sand burial. The results showed that A. halodendron as a prammophyte species had a stronger ability to withstand sand burial compared to non-prammophytes, with some plants still surviving even if buried to a depth reaching 225% of seedling height. Although seedling growth was inhibited significantly once the depth of sand burial reached 50%of the seedling height, seedling survival did not decrease significantly until the burial depth exceeded 100%of the seedling height. Sand burial did not result in significant water stress or MDA (Malondialdehyde) accumulation in the seedlings, but membrane permeability increased significantly when the burial depth exceeded 100%of the seedling height. After being subjected to sand burial stress, POD (Peroxidase) activity and proline content increased significantly, but SOD (Superoxide Dismutase) and POD activities and soluble sugar content did not. The primary mechanism resulting in in-creased mortality and growth inhibition were that cell membranes were damaged and photosynthetic area decreased when subjected to the severe stress of sand burial, while proline and POD played key roles in osmotic adjustment and protecting cell membranes from damage, respectively.
英文关键词	desert shrub sand burial survival rate growth physiological response
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:5362389
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335451
作者单位	Zhao Halin, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Qu Hao, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Yun Jianying, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Li Jin, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Zhou Ruilian, Faculty of Life Sciences, Ludong University, Yantai, Shandong China.
推荐引用方式 GB/T 7714	Zhao Halin,Qu Hao,Zhou Ruilian,et al. Effects of sand burial on survival and growth of Artemisia halodendron and its physiological response[J],2015,7(1):59-66.
APA	Zhao Halin,Qu Hao,Zhou Ruilian,Yun Jianying,&Li Jin.(2015).Effects of sand burial on survival and growth of Artemisia halodendron and its physiological response.Sciences in Cold and Arid Regions,7(1),59-66.
MLA	Zhao Halin,et al."Effects of sand burial on survival and growth of Artemisia halodendron and its physiological response".Sciences in Cold and Arid Regions 7.1(2015):59-66.