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马来西亚半岛北部红树林土壤中的物种及其土壤理化性质。

Species in Mangrove Soil in Northern Peninsular Malaysia and the Soil Physico-Chemical Properties.

作者信息

Mohamed Zubi Wafa S, Mohd Masratul Hawa, Mohamed Nor Nik Mohd Izham, Zakaria Latiffah

机构信息

School of Biological Sciences, Universiti Sains Malaysia, Penang 11800, USM, Malaysia.

出版信息

Microorganisms. 2021 Feb 26;9(3):497. doi: 10.3390/microorganisms9030497.

Abstract

genus comprises important saprophytic and phytopathogenic fungi and is widespread in nature. The present study reports the occurrence of spp. in soils from two mangrove forests in northern Peninsular Malaysia and analyzed physico-chemical properties of the mangrove soil. Based on TEF-1α sequences, nine species were identified: species complex (FSSC) ( = 77), ( = 20), ( = 10), ( = 7), ( = 4), ( = 3), ( = 2), ( = 1) and ( = 1); FSSC isolates were the most prevalent. Phylogenetic analysis of the combined TEF-1α and ITS sequences revealed diverse phylogenetic affinities among the FSSC isolates and potentially new phylogenetic clades of FSSC. Soil analysis showed varied carbon content, pH, soil moisture, and salinity, but not nitrogen content, between sampling locations. Regardless of the physico-chemical properties, various species were recovered from the mangrove soils. These were likely saprophytes; however, some were well-known plant pathogens and opportunistic human pathogens. Thus, mangrove soils might serve as inoculum sources for plant and human pathogenic species. The present study demonstrates the occurrence of various species in the extreme environment of mangrove soil, thereby contributing to the knowledge on species diversity in .

摘要

该属包含重要的腐生真菌和植物病原真菌,在自然界广泛分布。本研究报告了马来西亚半岛北部两片红树林土壤中该属物种的存在情况,并分析了红树林土壤的理化性质。基于翻译延伸因子1α(TEF-1α)序列,鉴定出9种该属物种:物种复合体(FSSC)(=77)、某物种(=20)、另一物种(=10)、又一物种(=7)、再一物种(=4)、某物种(=3)、某物种(=2)、某物种(=1)和某物种(=1);FSSC分离株最为常见。对TEF-1α和内转录间隔区(ITS)联合序列的系统发育分析揭示了FSSC分离株之间不同的系统发育亲缘关系以及FSSC潜在的新系统发育分支。土壤分析表明,采样地点之间的碳含量、pH值、土壤湿度和盐度各不相同,但氮含量无差异。无论理化性质如何,从红树林土壤中都分离出了各种该属物种。这些可能是腐生菌;然而,有些是著名的植物病原菌和机会性人类病原菌。因此,红树林土壤可能是植物和人类致病该属物种的接种源。本研究证明了在红树林土壤这种极端环境中存在各种该属物种,从而丰富了对该属物种多样性的认识。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a24e/7996719/4121758d6549/microorganisms-09-00497-g001.jpg

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