干旱区生态环境知识资源中心(Arid): Identification of aqueous extracts from Artemisia ordosica and their allelopathic effects on desert soil algae

Arid

DOI	10.1007/s00049-018-00276-8
	Identification of aqueous extracts from Artemisia ordosica and their allelopathic effects on desert soil algae
	Zhou, Xiangjun 1; Zhang, Yurui 1; An, Xiaoliang 2; De Philippis, Roberto 3; Ma, Xinyue 1; Ye, Chaoran 1; Chen, Lanzhou 1
通讯作者	Chen, Lanzhou
来源期刊	CHEMOECOLOGY
ISSN	0937-7409
EISSN	1423-0445
出版年	2019
卷号	29 期号:2 页码:61-71
英文摘要	Desert vascular plants coexist extensively with biological soil crusts (BSCs) in arid lands, but limited information is known about the impacts of shrub litterfall on soil microalgae. In this study, the components of aqueous extracts (AEs) from Artemisia ordosica leaves were identified, and the growth and physiological responses of two BSC-dominated algae, namely, Chlorella vulgaris and Nostoc sp., to AEs were investigated. The AEs contained humic and fulvic acid-like fluorescence components with high aromaticity. They also comprised four main chemical components, namely alcohols, phenols, organic acids and saccharides. Low AE concentrations enhanced the growth rate and chlorophyll fluorescence yield of C. vulgaris. Conversely, high AE concentrations inhibited the growth and photosynthetic activities of both soil microalgae, resulting from the decrease of superoxide dismutase and catalase activities and the accumulation of reactive oxygen species and malondialdehyde contents. The tolerance concentration of the green alga C. vulgaris to the AEs was greater than that of the cyanobacterium Nostoc sp. The AEs from A. ordosica exerted different degrees of stimulatory or inhibitory effects on the growth rates and physiological activities of Nostoc sp. and C. vulgaris, which might affect soil microalgal community structure and BSC formation in drylands. This study reveals the response mechanisms of soil algae to shrub leachates and improves our understanding of the role of vascular plants in shaping BSC communities.
英文关键词	Allelopathy Aqueous extracts Oxidative damage Photosynthesis Soil microalgae
类型	Article
语种	英语
国家	Peoples R China ; Italy
收录类别	SCI-E
WOS记录号	WOS:000461144400003
WOS关键词	DISSOLVED ORGANIC-MATTER ; UV-B RADIATION ; CHLOROPHYLL FLUORESCENCE ; MICROBIAL COMMUNITY ; SUCCESSIONAL STAGES ; GREEN-ALGAE ; CRUSTS ; GROWTH ; MICROCYSTIS ; PHOTOSYNTHESIS
WOS类目	Biochemistry & Molecular Biology ; Ecology
WOS研究方向	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214880
作者单位	1.Wuhan Univ, Sch Resource & Environm Sci, Hubei Key Lab Biomass Resources Chem & Environm B, Luoyu Rd 129, Wuhan 430079, Hubei, Peoples R China; 2.Inner Mongolia Acad Forestry, Hohhot 010020, Peoples R China; 3.Florence Univ, Dept Agrifood Prod & Environm Sci, Via Maragliano 77, I-50144 Florence, Italy
推荐引用方式 GB/T 7714	Zhou, Xiangjun,Zhang, Yurui,An, Xiaoliang,et al. Identification of aqueous extracts from Artemisia ordosica and their allelopathic effects on desert soil algae[J],2019,29(2):61-71.
APA	Zhou, Xiangjun.,Zhang, Yurui.,An, Xiaoliang.,De Philippis, Roberto.,Ma, Xinyue.,...&Chen, Lanzhou.(2019).Identification of aqueous extracts from Artemisia ordosica and their allelopathic effects on desert soil algae.CHEMOECOLOGY,29(2),61-71.
MLA	Zhou, Xiangjun,et al."Identification of aqueous extracts from Artemisia ordosica and their allelopathic effects on desert soil algae".CHEMOECOLOGY 29.2(2019):61-71.