干旱区生态环境知识资源中心(Arid): The soil microbiomics of intact, degraded and partially-restored semi-arid succulent thicket (Albany Subtropical Thicket)

Arid

DOI	10.7717/peerj.12176
	The soil microbiomics of intact, degraded and partially-restored semi-arid succulent thicket (Albany Subtropical Thicket)
	Schagen, Micaela; Bosch, Jason; Johnson, Jenny; Duker, Robbert; Lebre, Pedro; Potts, Alastair J.; Cowan, Don A.
通讯作者	Cowan, DA (corresponding author), Univ Pretoria, Ctr Microbial Ecol & Genom, Dept Biochem Genet & Microbiol, Pretoria, Gauteng, South Africa.
来源期刊	PEERJ
ISSN	2167-8359
出版年	2021
卷号	9
英文摘要	This study examines the soil bacterial diversity in the Portulacaria afra-dominated succulent thicket vegetation of the Albany Subtropical Thicket biome; this biome is endemic to South Africa. The aim of the study was to compare the soil microbiomes between intact and degraded zones in the succulent thicket and identify environmental factors which could explain the community compositions. Bacterial diversity, using 16S amplicon sequencing, and soil physicochemistry were compared across three zones: intact (undisturbed and vegetated), degraded (near complete removal of vegetation due to browsing) and restored (a previously degraded area which was replanted approximately 11 years before sampling). Amplicon Sequence Variant (ASV) richness was similar across the three zones, however, the bacterial community composition and soil physicochemistry differed across the intact and degraded zones. We identified, via correlation, the potential drivers of microbial community composition as soil density, pH and the ratio of Ca to Mg. The restored zone was intermediate between the intact and degraded zones. The differences in the microbial communities appeared to be driven by the presence of plants, with plant-associated taxa more common in the intact zone. The dominant taxa in the degraded zone were cosmopolitan organisms, that have been reported globally in a wide variety of habitats. This study provides baseline information on the changes of the soil bacterial community of a spatially restricted and threatened biome. It also provides a starting point for further studies on community composition and function concerning the restoration of degraded succulent thicket ecosystems.
英文关键词	Soil Succulent thicket Albany Subtropical Thicket Microbial ecology Ecosystem restoration Portulacaria afra
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000707220900001
WOS关键词	EASTERN CAPE ; COMMUNITY STRUCTURE ; SP NOV. ; ACID METABOLISM ; NAMA-KAROO ; BACTERIAL ; DIVERSITY ; TRANSFORMATION ; RESTORATION ; GRASSLANDS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364296
作者单位	[Schagen, Micaela; Bosch, Jason; Johnson, Jenny; Lebre, Pedro; Cowan, Don A.] Univ Pretoria, Ctr Microbial Ecol & Genom, Dept Biochem Genet & Microbiol, Pretoria, Gauteng, South Africa; [Duker, Robbert; Potts, Alastair J.] Nelson Mandela Univ, Bot Dept, South Campus, Port Elizabeth, Eastern Cape, South Africa
推荐引用方式 GB/T 7714	Schagen, Micaela,Bosch, Jason,Johnson, Jenny,et al. The soil microbiomics of intact, degraded and partially-restored semi-arid succulent thicket (Albany Subtropical Thicket)[J],2021,9.
APA	Schagen, Micaela.,Bosch, Jason.,Johnson, Jenny.,Duker, Robbert.,Lebre, Pedro.,...&Cowan, Don A..(2021).The soil microbiomics of intact, degraded and partially-restored semi-arid succulent thicket (Albany Subtropical Thicket).PEERJ,9.
MLA	Schagen, Micaela,et al."The soil microbiomics of intact, degraded and partially-restored semi-arid succulent thicket (Albany Subtropical Thicket)".PEERJ 9(2021).