气候变化领域集成服务门户(CCPortal): Responses of fungal diversity and community composition after 42 years of prescribed fire frequencies in semi-arid savanna rangelands

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DOI	10.3389/fenvs.2024.1355278
	Responses of fungal diversity and community composition after 42 years of prescribed fire frequencies in semi-arid savanna rangelands
	Poswa, Sanele Briged; Manyevere, Alen; Mashamaite, Chuene Victor
发表日期	2024
EISSN	2296-665X
起始页码	12
卷号	12
英文摘要	Prescribed fire frequencies have been widely used to reduce the risk of severe wildfire occurrences. In addition, several studies have been conducted to assess the impact of fire frequencies on vegetation, vertebrate, and invertebrate species, as well as soil physical and chemical properties. However, there is a lack of empirically based knowledge concerning the impact of fire frequency on soil microorganisms. This study assessed the effect of different fire frequencies on the diversity and composition of soil fungal communities in a semi-arid savanna rangeland. Soil samples were collected from an ongoing long-term trial at the University of Fort Hare (South Africa) on the following treatments: (i) no burning; (ii) annual burning (burned once every year); (iii) biennial burning (burned once every 2 years); (iv) triennial burning (burned once every 3 years); (v) quadrennial burning (burned once every 4 years); and (vi) sexennial burning (burned once every 6 years). Fungi were identified using high-throughput sequencing, with Shannon-Wiener and Inverse Simpson diversity indexes being used for diversity and network analysis. Principal coordinate analysis was used for Bray-Curtis distance matrices to visualise the relationships between treatments. The highest diversity was found in biennial burning, which was significantly different (p < 0.05) from the sexennial, quadrennial, and no burning treatments but was not different from the triennial and annual burning treatments. Regarding the taxa, Ascomycota and Basidiomycota were the phyla with the highest relative abundance, followed by Mortierellomycota, Chytridiomycota, and Rozellomycota. The different fire frequencies had an influence on soil fungi diversity and taxonomic composition in semi-arid savanna rangelands.
英文关键词	ascomycota; ASVs; climate change; fire-prone biome; species richness; species diversity
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001184359800001
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/299941
作者单位	University of Fort Hare
推荐引用方式 GB/T 7714	Poswa, Sanele Briged,Manyevere, Alen,Mashamaite, Chuene Victor. Responses of fungal diversity and community composition after 42 years of prescribed fire frequencies in semi-arid savanna rangelands[J],2024,12.
APA	Poswa, Sanele Briged,Manyevere, Alen,&Mashamaite, Chuene Victor.(2024).Responses of fungal diversity and community composition after 42 years of prescribed fire frequencies in semi-arid savanna rangelands.FRONTIERS IN ENVIRONMENTAL SCIENCE,12.
MLA	Poswa, Sanele Briged,et al."Responses of fungal diversity and community composition after 42 years of prescribed fire frequencies in semi-arid savanna rangelands".FRONTIERS IN ENVIRONMENTAL SCIENCE 12(2024).