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

Arid

DOI	10.3724/SP.J.1226.2015.00059
	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
通讯作者	Zhao, HL
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 increased 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	ESCI
WOS记录号	WOS:000390930900008
WOS关键词	LIPID-PEROXIDATION ; BIOMASS ALLOCATION ; SEEDLING GROWTH ; DROUGHT STRESS ; TOLERANCE ; PLANTS ; EMERGENCE ; PROLINE ; SYSTEMS ; DEPTHS
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331298
作者单位	[Zhao, HaLin; Qu, Hao; Yun, JianYing; Li, Jin] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China; [Zhou, RuiLian] Ludong Univ, Fac Life Sci, Yantai 264025, Shandong, Peoples R 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]. 中国科学院西北生态环境资源研究院,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.