干旱区生态环境知识资源中心(Arid): Growth and Physiology of Two Psammophytes to Precipitation Manipulation in Horqin Sandy Land, Eastern China

Arid

DOI	10.3390/plants8070244
	Growth and Physiology of Two Psammophytes to Precipitation Manipulation in Horqin Sandy Land, Eastern China
	Chen, Juanli 1,2,3; Zhao, Xueyong1,3 ; Liu, Xinping 1,3; Zhang, Yaqiu 4; Luo, Yayong 1,3; Luo, Yongqing 1,3; He, Zhaoquan 1,2,3; Zhang, Rui 1,2,3
通讯作者	Chen, Juanli ; Zhao, Xueyong
来源期刊	PLANTS-BASEL
EISSN	2223-7747
出版年	2019
卷号	8 期号:7
英文摘要	The availability of water is the critical factor driving plant growth, physiological responses, population and community succession in arid and semiarid regions, thus a precipitation addition-reduction platform with five experimental treatments, was established to explore the growth and physiology of two psammophytes (also known as psammophiles) to precipitation manipulation in Horqin Sandy Land. Changes in coverage and density were measured, and antioxidant enzymes and osmoregulatory substances in both of the studied species were determined. Investigation results showed that the average vegetation coverage increased with an increasing precipitation, and reached a maximum in July. Under the -60% precipitation treatment, Tribulus terrestris accounted for a large proportion of the area, but Bassia dasyphylla was the dominant species in the +60% treatment. T. terrestris was found to have higher a drought stress resistance than B. dasyphylla. From days 4 to 7 after rainfall, B. dasyphylla under precipitation reduction showed obvious water stress. The malondialdehyde (MDA) content of B. dasyphylla was higher than that of T. terrestris, but that of B. dasyphylla had the lower relative water content (RWC). The MDA content in the precipitation reduction treatments of the two studied species was higher than that in the precipitation addition treatments from days 4 to 10. Peroxidase (POD) and superoxide dismutase (SOD) activity and the soluble proteins and free proline content of T. terrestris were higher than those of B. dasyphylla. The free proline content of T. terrestris and B. dasyphylla increased with increasing drought stress. Our data illustrated that T. terrestris had a higher drought stress resistance than B. dasyphylla, which was correlated with the augmentation of some antioxidant enzymes and osmoregulatory substance. The adaptive mechanism provides solid physiological support for an understanding of psammophyte adaptation to drought stress, and of community succession or species manipulation for desertified land restoration.
英文关键词	Horqin Sandy Land precipitation addition precipitation reduction growth physiological response
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold, Green Submitted, Green Published
收录类别	SCI-E
WOS记录号	WOS:000481484800048
WOS关键词	ANTIOXIDANT ENZYMES ; INNER-MONGOLIA ; DROUGHT ; VARIABILITY ; GERMINATION ; PATTERNS ; STRESS ; PLANTS ; ROOTS ; SOIL
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218065
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; 2.Univ Chinese Acad Sci, Sch Life Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou 730000, Gansu, Peoples R China; 4.Hanzhong Agr Technol Extens Ctr, Hort Technol Dept, Hanzhong 723000, Peoples R China
推荐引用方式 GB/T 7714	Chen, Juanli,Zhao, Xueyong,Liu, Xinping,et al. Growth and Physiology of Two Psammophytes to Precipitation Manipulation in Horqin Sandy Land, Eastern China[J],2019,8(7).
APA	Chen, Juanli.,Zhao, Xueyong.,Liu, Xinping.,Zhang, Yaqiu.,Luo, Yayong.,...&Zhang, Rui.(2019).Growth and Physiology of Two Psammophytes to Precipitation Manipulation in Horqin Sandy Land, Eastern China.PLANTS-BASEL,8(7).
MLA	Chen, Juanli,et al."Growth and Physiology of Two Psammophytes to Precipitation Manipulation in Horqin Sandy Land, Eastern China".PLANTS-BASEL 8.7(2019).