Microsclerotia of dark septate endophytic fungi from Paleogene and Neogene of Poland: fossil record and palaeoenvironmental significance of root fungal endophytes

IF 2.9 3区生物学 Q2 MYCOLOGY

Fungal biology Pub Date : 2025-05-13 DOI:10.1016/j.funbio.2025.101594

Grzegorz Worobiec , Elżbieta Worobiec , Marek Widera , Wojciech Granoszewski

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引用次数: 0

Abstract

Remains of microsclerotia morphologically corresponding to those of modern dark septate endophytic (DSE) fungi were found during palynological studies of some Oligocene and Miocene sites from Poland. Fossil microsclerotia, mostly represented by leaf-like morphotypes were morphologically diversified, but there was no possibility to match the fossil morphotypes with modern fungal DSE taxa forming microsclerotia in roots. Reliable fossils of microsclerotia of dark septate endophytic fungi date back to the Eocene and show continuous presence till recent times. They confirm the coexistence of dark septate endophytic fungi with plants at least from the beginning of the early Cenozoic. Pre-Cenozoic fossils of presumed DSE microsclerotia were considered doubtful. The presence of microsclerotia in continental deposits points to dense vegetation in the past, and in marine deposits, they indicate terrigenous flux that originated from coastal vegetation.

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波兰古近纪和新近纪暗隔内生真菌的微核：根真菌内生真菌的化石记录及其古环境意义

在波兰渐新世和中新世遗址的孢粉学研究中发现了与现代暗隔内生真菌（DSE）形态相对应的微核残体。以叶状微核为代表的化石微核形态多样，但化石微核形态与现代真菌DSE根微核类群无法匹配。暗裂内生真菌微核的可靠化石可以追溯到始新世，并持续存在到最近。他们证实，至少从新生代早期开始，暗隔内生真菌就与植物共存。假定的前新生代DSE微核化石被认为是可疑的。大陆沉积物中微核的存在表明过去有密集的植被，而在海洋沉积物中，它们表明源自沿海植被的陆源通量。

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来源期刊

Fungal biology MYCOLOGY-

CiteScore

5.80

自引率

4.00%

发文量

审稿时长

49 days

期刊介绍： Fungal Biology publishes original contributions in all fields of basic and applied research involving fungi and fungus-like organisms (including oomycetes and slime moulds). Areas of investigation include biodeterioration, biotechnology, cell and developmental biology, ecology, evolution, genetics, geomycology, medical mycology, mutualistic interactions (including lichens and mycorrhizas), physiology, plant pathology, secondary metabolites, and taxonomy and systematics. Submissions on experimental methods are also welcomed. Priority is given to contributions likely to be of interest to a wide international audience.