Phylloplane as Fungi Habitat

A. A. Tsarelunga, E. Yu. Blagoveschenskaya
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Abstract

As currently shown, the phylloplane of different plants is actively colonized by yeasts and filamentous fungi of different taxonomic groups. The features of the leaf as a microhabitat are low humidity, susceptibility to mechanical effects of rain and wind, lack of nutrients on the surface, and high solar insolation, which causes the allocation of epiphytic fungi as a separate ecological group. Although the data vary from plant to plant, in general, it can be said that basidial yeasts and such filamentous fungi as Alternaria, Epicoccum, Cladosporium, Phoma, and Trichoderma are most commonly found on plant surfaces. The biological cycle of epiphytic fungi has not yet been studied completely, but it is assumed that it begins with the specific adhesion of the spore on the surface, followed by the formation of biofilms or so-called “aggregates” that combine bacteria, yeast, and filamentous fungi, and ends with the formation of spores either on the surface of a living plant or on dead and decaying leaves.

Abstract Image

作为真菌栖息地的植被层
摘要 正如目前所显示的,不同分类群的酵母菌和丝状真菌在不同植物的叶面上积极定殖。叶片作为微生境的特点是湿度低、易受风雨的机械影响、表面缺乏营养以及日照强,因此附生真菌被划分为一个独立的生态群。虽然数据因植物而异,但总体而言,基生酵母菌和丝状真菌(如 Alternaria、Epicoccum、Cladosporium、Phoma 和 Trichoderma)最常见于植物表面。附生真菌的生物循环尚未完全研究清楚,但可以推测,首先是孢子在表面上的特定附着,然后形成生物膜或所谓的 "聚集体",将细菌、酵母菌和丝状真菌结合在一起,最后在活植物表面或枯叶和腐叶上形成孢子。
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