Influence of sand burial on cultivable micro-fungi inhabiting biological soil crusts
文献类型：期刊论文
| 作者 | Grishkan, Isabella1; Jia, Rong Liang2; Rong, Xin2 |
| 刊名 | PEDOBIOLOGIA
 |
| 出版日期 | 2015 |
| 卷号 | 58期号:2-3页码:89-96 |
| 关键词 | Arenosols Below-crust sandy layers Melanin-containing fungi Aspergillus fumigatus Species composition Diversity |
| ISSN号 | 0031-4056 |
| DOI | 10.1016/j.pedobi.2015.03.003 |
| 通讯作者 | Grishkan, Isabella(grishkan@haifa.research.ac.il) |
| 英文摘要 | We examined the influence of sand burial of 0.5-mm and 10-mm depths on micro-fungal communities inhabiting moss-dominated and mixed biocrusts in the vicinity of the Shapotou Research Station in the Tengger Desert, China. The buried communities were compared with those in unburied crusts, as well as with the sandy below-crust and topsoil communities. We isolated 65 fungal species belonging to 43 genera using the soil dilution plate method. Compared to the unburied communities, the buried crust communities were characterized by lower abundance of melanin containing species, especially those with large many-celled conidia, but higher abundance of species producing small light-colored and one-celled conidia, mainly mesophilic Penicillium spp. Sand deposition also caused reduction of isolate density that was more pronounced in the mixed crusts. Diversity characteristics of micro-fungal communities and isolate densities varied in the two crust types in response to the same level of sand burial. This difference between the mixed and moss-dominated crusts was less expressed when the communities had been subjected to the deep sand burial. Below-crust sandy communities showed a more significant decrease both in isolate density and species richness compared to buried crust communities, which was accompanied by the substitution of dominant species the thermotolerant Aspergillus fumigatus in the subcrust sandy layers instead of melanized species with large multicellular conidia in the crusts. On the whole, the influence of sand burial on crust micro-fungal communities was likely associated with the shielding effect of sand layer which might protect the crust layer from evaporation and UV-radiation. Whereas sand deposition in the crusts partly changed the substrate quality and microclimatic conditions for soil micro-fungi, transition from the crust to the below-crust sandy layer much more substantially altered the environmental situation (mainly in nutrient status, from the comparatively rich organic crust layer to the poor mineral sandy layer) thus leading to the more significant changes in the micro-fungal communities. (C) 2015 Elsevier GmbH. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | TENGGER DESERT ; NORTHERN CHINA ; MICROFUNGAL COMMUNITIES ; CYANOBACTERIAL CRUSTS ; WESTERN NEGEV ; DIVERSITY ; ISRAEL ; BIOMASS ; VEGETATION ; MYCOFLORA |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| WOS类目 | Ecology ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000358097400006 |
| 出版者 | ELSEVIER GMBH, URBAN & FISCHER VERLAG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557090 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Grishkan, Isabella |
| 作者单位 | 1.Univ Haifa, Inst Evolut, IL-3498838 Haifa, Israel 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Grishkan, Isabella,Jia, Rong Liang,Rong, Xin. Influence of sand burial on cultivable micro-fungi inhabiting biological soil crusts[J]. PEDOBIOLOGIA,2015,58(2-3):89-96. |
| APA | Grishkan, Isabella,Jia, Rong Liang,&Rong, Xin.(2015).Influence of sand burial on cultivable micro-fungi inhabiting biological soil crusts.PEDOBIOLOGIA,58(2-3),89-96. |
| MLA | Grishkan, Isabella,et al."Influence of sand burial on cultivable micro-fungi inhabiting biological soil crusts".PEDOBIOLOGIA 58.2-3(2015):89-96. |
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来源：寒区旱区环境与工程研究所
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