湖北恩施州大型真菌多样性调查及资源评价

Inventory and Resource Evaluation of Macro-fungal Diversity in Enshi Prefecture, Hubei Province

  • 摘要: 湖北恩施州生态环境复杂多样, 为了探明大型真菌资源情况, 分8个县(市)4个国家级自然保护区, 采用实地调查和样线法结合的方法, 通过形态学和分子生物学研究, 共鉴定出485种大型真菌, 隶属于2门8纲21目83科203属, 恩施市、鹤峰县和利川市物种最多, Shannon生物多样性指数最高, 具有较高的生物多样性水平, 优势科为Russulaceae、Polyporaceae、Boletaceae、Amanitaceae和Agaricaceae, 优势属为Russula、Amanita、Entoloma、Gymnopus和Suillus, 优势种为Candolleomyces candolleanus、Gymnopus dryophilus、Suillus bovinus、Trametes hirsuta和Lycoperdon perlatum; 发现具有经济价值的大型真菌194种, 近危种2种, 中国特有种15种; 大型真菌采集月份与经济价值、生态类型存在三维关系, 且特定菌种采集月份与经济价值之间有显著性关系; 植被类型中针阔混交林和落叶阔叶林菌种资源最丰富, 食用菌和有毒菌主要分布在针阔混交林, 昆虫寄生菌仅分布在针阔混交林, 粪生菌仅分布在落叶阔叶林。共发现4种大型真菌中国新记录: Entoloma ammophilum、Psathyrella abieticola、Pseudosperma ushae和Hydropus omphaliiformis。该研究探明了恩施州大型真菌资源多样性, 食药用菌占比大, 可开发利用菌种多, 探明了真菌与环境之间的依存关系, 为真菌保护和后续资源开发利用提供了基础资料和科学依据。

     

    Abstract: Enshi Prefecture in Hubei Province features a complex and diverse ecological environment. To investigate the distribution of macro-fungi resources, field surveys and transect sampling were conducted across eight counties and cities, including four national nature reserves. Through morphological and molecular biological studies, a total of 485 macro-fungal species were identified, belonging to 2 phyla, 8 classes, 21 orders, 83 families and 203 genera. Enshi City, Hefeng County and Lichuan City exhibited the highest species richness and the highest Shannon diversity index, indicating a high level of biodiversity. Dominant families included Russulaceae, Polyporaceae, Boletaceae, Amanitaceae and Agaricaceae. Dominant genera comprised Russula, Amanita, Entoloma, Gymnopus and Suillus. And dominant species were Candolleomyces candolleanus, Gymnopus dryophilus, Suillus bovinus, Trametes hirsuta and Lycoperdon perlatum. A total of 194 economically valuable macro-fungi were identified, including 2 near-threatened species and 15 endemic to China. A three-dimensional relationship exists between collection month, economic value and ecological type for macro-fungi, with a significant correlation between collection month and economic value for specific species. Mixed coniferous-broadleaf forests and deciduous broadleaf forests harbor the richest fungal species diversity among vegetation types. Edible and toxic fungi predominantly occur in mixed coniferous-broadleaf forests, while insect-parasitic fungi are exclusively found in mixed coniferous-broadleaf forests and coprophytic fungi only in deciduous broadleaf forests. Four new records for China were identified: Entoloma ammophilum, Psathyrella abieticola, Pseudosperma ushae and Hydropus omphaliiformis, enriching China's macro-fungal diversity. This study clarifies the diversity of macro-fungal resources in Enshi Prefecture, revealing a high proportion of edible and medicinal species and many species suitable for development and utilization. It also elucidates the relationships between macro-fungi and their environments, providing baseline data and a scientific basis for fungal conservation and subsequent resource development and utilization.

     

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