An exploratory study of species richness and dynamics in the cultivable mycobiota of Palmaria palmata

IF 1.9 3区环境科学与生态学 Q3 ECOLOGY

Fungal Ecology Pub Date : 2025-03-08 DOI:10.1016/j.funeco.2025.101417

Yoran Le Strat , Nicolas Ruiz , Paul Déléris , Thibaut Robiou du Pont , Samuel Bertrand , Stella Debaets , Gaëtan Burgaud , Justine Dumay

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Abstract

This study presents the first exploratory analysis of the cultivable fungal communities associated with the red alga Palmaria palmata and their temporal dynamics over one year. The fungal isolation strategy employed two culture media - a non-specific Wickerham medium and a specific “P. palmata” medium - coupled with two incubation temperatures (12 °C and 27 °C), and a differentiation between epiphytic and endophytic fungi. This experimental design yielded 298 fungal isolates. Through morphological observations and molecular techniques, 142 fungal taxa were identified. The cultivable fungal diversity associated with P. palmata was dominated by members of the phylum Ascomycota, with the classes Dothideomycetes, Eurotiomycetes and Sordariomycetes, and the genera Cladosporium, Penicillium and Aspergillus emerging as the dominant groups. This fungal diversity exhibited significant seasonal variation, with culture conditions - including incubation temperature and culture medium composition - influencing the diversity and composition of the cultivated fungi obtained.

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棕榈可培养菌群物种丰富度及动态的探索性研究

本研究首次对红藻Palmaria palmata的可培养真菌群落及其在一年内的时间动态进行了探索性分析。真菌分离策略采用两种培养基-非特异性Wickerham培养基和特异性P。“掌”培养基-结合两种培养温度（12°C和27°C），并区分附生真菌和内生真菌。实验设计共分离出298株真菌。通过形态学观察和分子技术鉴定出142个真菌类群。与棕榈假单胞菌相关的可培养真菌多样性以子囊菌门的成员为主，其中多菌纲、Eurotiomycetes和Sordariomycetes，枝孢菌属、青霉菌属和曲霉属是优势类群。真菌多样性表现出明显的季节变化，培养条件（包括孵育温度和培养基成分）影响培养真菌的多样性和组成。

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来源期刊

Fungal Ecology 环境科学-生态学

CiteScore

5.80

自引率

3.40%

发文量

审稿时长

3 months

期刊介绍： Fungal Ecology publishes investigations into all aspects of fungal ecology, including the following (not exclusive): population dynamics; adaptation; evolution; role in ecosystem functioning, nutrient cycling, decomposition, carbon allocation; ecophysiology; intra- and inter-specific mycelial interactions, fungus-plant (pathogens, mycorrhizas, lichens, endophytes), fungus-invertebrate and fungus-microbe interaction; genomics and (evolutionary) genetics; conservation and biodiversity; remote sensing; bioremediation and biodegradation; quantitative and computational aspects - modelling, indicators, complexity, informatics. The usual prerequisites for publication will be originality, clarity, and significance as relevant to a better understanding of the ecology of fungi.