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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Diversity of filamentous fungi on decomposing leaf and woody litter ofmangrove forests in the southwest coast of India
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Diversity of filamentous fungi on decomposing leaf and woody litter ofmangrove forests in the southwest coast of India

机译：印度西南海岸红树林的叶片和木质凋落物分解上的丝状真菌多样性

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摘要

Assemblage and diversity of filamentous fungi on leaf and woody litter accumulated on the floor of two mangrove forests (Nethravathi and Udyavara) in the southwest coast of India have been studied. Leaf and woody litter collected during summer and monsoon seasons incubated in the laboratory (2, 8, 16 and 32 weeks) yielded 78 taxa belonging to 32 ascomycetes and 46 mitosporic fungi. Significant difference (ANOVA) was seen in the frequency of occurrence of fungal taxa in different incubation periods of leaf litter (P = 0.179 x 10 super(-5) to 0.24 x 10 super(-5)) and woody litter (P = 0.887 x 10 super(-8) to 0.0326). The number of fungal taxa per leaf litter ranged from 1 to 5, while for woody litter it was 1 to 8. Mean number of fungal taxa per wood ranged between 2.5 and 3.6, which is higher than that in the mangroves of the Indian Ocean and South East Asia. Seven ascomycetes (Aniptodera chesapeakensis, Aniptodera sp., Arenariomyces parvulus, Lulworthia grandispora, Savoryella lignicola, Kallichroma tethys and Verruculina enalia) and seven anamorphic taxa (Arthrinium sp., Aspergillus sp. 1, Cirrenalia pygmea, Cirrenalia tropicalis, Penicillium sp., Periconia prolifica and Trichocladium alopallonellum) belonging to core-group fungi (frequency of occurrence greater than or equal to 10%) were identified. Woody litter collected during summer season showed highest fungal diversity than during monsoon. Rarefaction estimates of expected number of fungal taxa out of 150 isolates were higher in woody litter than leaf litter. Sporulation of terrestrial fungi, marine fungi and arenicolous fungi (sand-inhabiting) was successional on leaf and woody litter. Terrestrial fungi sporulated within eight weeks and declined thereafter, sporulating marine fungi were highest during 16 weeks, while are nicolous fungi attained a peak after 32 weeks of incubation. Substrate preference, succession, competition and techniques of study of mangrove filamentous fungi have been discussed.
机译：研究了印度西南海岸两个红树林（Nethravathi和Udyavara）的地上积累的叶片和木质凋落物上丝状真菌的聚集和多样性。在实验室（2、8、16和32周）温育的夏季和季风季节收集的叶子和木质凋落物产生了78个分类单元，分别属于32个子囊菌和46个线孢真菌。在凋落物（P = 0.179 x 10 super（-5）到0.24 x 10 super（-5））和木质凋落物（P = 0.887）的不同潜伏期中，真菌类群的发生频率存在显着差异（ANOVA）。 x 10超级（-8）到0.0326）。每叶凋落物的真菌类群数量为1至5，而木质凋落物的真菌类群数量为1至8。平均木材/木料凋落物数量范围为2.5至3.6，高于印度洋和印度洋的红树林。东南亚。七个子囊菌（Aniptodera chesapeakensis，Aniptodera sp。，小球藻，Lulworthia grandispora，Savoryella lignicola，Kallichroma tethys和Verruculina enalia）和七个变形类群（Arthrinium sp。，Aspergillus sp。，Cillrenalia pyg，Cirrenalia pyg。鉴定出属于核心组真菌（发生频率大于或等于10％）的多产和多毛Trichocladium alopallonellum）。夏季收集的木质凋落物比季风期间显示出最高的真菌多样性。木料垫料中150种分离株的预期真菌分类群数量的重估估计高于叶料垫料。陆生真菌，海洋真菌和砂仁真菌（沙生真菌）的孢子形成在叶片和木质垫料上是连续的。陆生真菌在八周内形成孢子，此后下降，海洋真菌的形成孢子在16周内最高，而含菌真菌在孵化32周后达到峰值。对红树林丝状真菌的基质选择，演替，竞争和研究技术进行了讨论。

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