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首页> 外文期刊>Extremophiles: Life under extreme conditions >Diversity, ecology, and bioprospecting of culturable fungi in lakes impacted by anthropogenic activities in Maritime Antarctica
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Diversity, ecology, and bioprospecting of culturable fungi in lakes impacted by anthropogenic activities in Maritime Antarctica

机译：湖泊南极洲人类学活动影响的湖泊湖泊中湖泊的多样性，生态和生物抵御

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摘要

In this study, we accessed culturable fungal assemblages present in the sediments of three lakes potentially impacted anthropogenically in the Fildes Peninsula, King George Island, Antarctica and identified 63 taxa.Cladosporiumsp. 2,Pseudeurotium hygrophilum, andPseudogymnoascus verrucosuswere recovered from the sampled sediments of all lakes. High concentrations of metals and the lowest fungal diversity indices were detected in the sediments of the Central Lake, which can be influenced by human activities due to their proximity to research stations to those of the other two lakes, which were far from the Antarctic stations. At least one type of biological activity was demonstrated by 40 fungal extracts. Among these,P. hygrophilum,P. verrucosus,Penicillium glabrum, andPenicillium solitumdemonstrated strong trypanocidal, herbicidal, and antifungal activities. Our results suggest that an increase of the anthropogenic activities in the region might have affected the microbial diversity and composition. In addition, the fungal diversity in these lakes may be a useful model to study the effect of anthropogenic activities in Antarctica. We isolated a diverse group of fungal taxa from Antarctic lake sediments, which have the potential to produce novel compounds for the both the medical and agriculture sectors.
机译：在这项研究中，我们访问了在Fildes Peninsula，乔治岛，南极洲国王岛，南极洲，南极洲，镇静的三湖沉积物中存在的追随性真菌组合。 2，假曲率训练岩，Andpseudogymnoascus verrucosuswere从所有湖泊的采样沉积物中恢复过来。在中央湖泊的沉积物中检测到高浓度的金属和最低的真菌多样性指数，这可能受到人类活动的影响，因为他们对其他两个湖泊的研究站，这是远离南极站的研究站。通过40个真菌提取物证明了至少一种生物活性。其中，p。 hygrophilum，p。 Verrucosus，Penicillium Glabrum，odpenicillium solitumdemonstrated强胰蛋白酶，除草剂和抗真菌活动。我们的研究结果表明，该地区的人为活动的增加可能影响了微生物多样性和组成。此外，这些湖泊的真菌多样性可能是研究南极洲人为活性的影响的有用模型。我们从南极湖泊沉积物中孤立一组不同的真菌分类群，这有可能为医学和农业部门生产新颖的化合物。

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