Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.3389/fbioe.2019.00028 |
| Occurrence of Soil Fungi in Antarctic Pristine Environments | |
| Duran, Paola1,2; Barra, Patricio J.1; Jorquera, Milko A.1,3; Viscardi, Sharon4; Fernandez, Camila2; Paz, Cristian1; de la Luz Mora, Maria1; Bol, Roland5 | |
| 通讯作者 | Duran, Paola |
| 来源期刊 | FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
 |
| ISSN | 2296-4185 |
| 出版年 | 2019 |
| 卷号 | 7 |
| 英文摘要 | The presence of fungi in pristine Antarctic soils is of particular interest because of the diversity of this microbial group. However, the extreme conditions that coexist in Antarctica produce a strong selective pressure that could lead to the evolution of novel mechanisms for stress tolerance by indigenous microorganisms. For this reason, in recent years, research on cold-adapted microorganisms has increased, driven by their potential value for applications in biotechnology. Cold-adapted fungi, in particular, have become important sources for the discovery of novel bioactive secondary metabolites and enzymes. In this study, we studied the fungal community structure of 12 soil samples from Antarctic sites, including King George Island (including Collins Glacier), Deception Island and Robert Island. Culturable fungi were isolated and described according to their morphological and phenotypical characteristics, and the richness index was compared with soil chemical properties to describe the fungal community and associated environmental parameters. We isolated 54 fungal strains belonging to the following 19 genera: Penicillium, Pseudogymnoascus, Lambertella, Cadophora, Candida, Mortierella, Oxygenales, Geomyces, Vishniacozyma, Talaromyces, Rhizopus, Antarctomyces, Cosmospora, Tetracladium, Leptosphaeria, Lecanicillium, Thelebolus, Bjerkandera and an uncultured Zygomycete. The isolated fungi were comprised of 70% Ascomycota, 10% Zygomycota, 10% Basidiomycota, 5% Deuteromycota and 5% Mucoromycota, highlighting that most strains were associated with similar genera grown in cold environments. Among the culturable strains, 55% were psychrotrophic and 45% were psychrophilic, and most were Ascomycetes occurring in their teleomorph forms. Soils from the Collins Glacier showed less species richness and greater species dominance compared with the rest of the sites, whereas samples 4, 7, and 10 (from Fildes Bay, Coppermine Peninsula and Arctowski Station, respectively) showed greater species richness and less species dominance. Species richness was related to the C/N ratio, whereas species dominance was inversely related to C and N content. Thus, the structure of the fungal community was mainly related to soil chemical parameters more than sample location and altitude. |
| 英文关键词 | Antarctica fungal community biodiversity index extreme environment cold desert |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | Chile ; Germany |
| 开放获取类型 | gold, Green Published |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000461234900001 |
| WOS关键词 | COMMUNITY ; RICHNESS ; BACTERIA ; VALLEY |
| WOS类目 | Biotechnology & Applied Microbiology ; Multidisciplinary Sciences |
| WOS研究方向 | Biotechnology & Applied Microbiology ; Science & Technology - Other Topics |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/215747 |
| 作者单位 | 1.Univ La Frontera, Sci & Technol Bioresource Nucleus, Temuco 2, Chile; 2.Univ La Frontera, Biocontrol Res Lab, Temuco 2, Chile; 3.Univ La Frontera, Lab Ecol Microbiana Aolicada, Dept Ciencias Quim & Recursos Nat, Temuco 2, Chile; 4.Univ Catolica Temuco, Dept Proc Diagnost & Evaluac, Fac Ciencias Salud, Temuco, Chile; 5.Forschungszentrum Julich, Agrosphere IBG 3, Inst Bio & Geosci, Julich, Germany |
| 推荐引用方式 GB/T 7714 | Duran, Paola,Barra, Patricio J.,Jorquera, Milko A.,et al. Occurrence of Soil Fungi in Antarctic Pristine Environments[J],2019,7. |
| APA | Duran, Paola.,Barra, Patricio J..,Jorquera, Milko A..,Viscardi, Sharon.,Fernandez, Camila.,...&Bol, Roland.(2019).Occurrence of Soil Fungi in Antarctic Pristine Environments.FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY,7. |
| MLA | Duran, Paola,et al."Occurrence of Soil Fungi in Antarctic Pristine Environments".FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY 7(2019). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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