Introducing two new genera, Paivomyces gen. nov. and Pseudoselenophoma gen. nov., in Saccotheciaceae (Dothideales).

Fungal systematics and evolution Pub Date : 2025-08-01 Epub Date: 2025-05-13 DOI:10.3114/fuse.2025.16.4

S S Nascimento, L O Ferro, Silva E A, Oliveira C S, Felipe M T C, Souza-Motta C M, Bezerra J D P

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引用次数: 0

Abstract

Members of the family Saccotheciaceae are found in various environments and have different lifestyles. While exploring Mimosa tenuiflora-associated endophytic fungi in the Caatinga dry forest in Brazil, the isolates were initially identified as aureobasidium-like fungi. Based on morphological features and phylogenetic analyses using ITS, LSU, tub2, rpb2, and tef1 gene sequences, these endophytes were placed within a distinct clade in Saccotheciaceae, differing from the genera currently accepted in the family. Here, we describe a new genus, Paivomyces gen. nov. (including Paivomyces mimosae sp. nov.). Additionally, during our phylogenetic analyses, we observed that Selenophoma australiensis, described from leaves of Eucalyptus mineata in Australia, could be treated as a unique lineage among the genera in the family Saccotheciaceae. Herein, we introduce Pseudoselenophoma gen. nov. (including Pseudoselenophoma australiensis comb. nov.) to accommodate the species. Our findings improve our understanding of the fungal diversity in the Caatinga dry forest in Brazil and clarify the phylogenetic lineages of Saccotheciaceae. Citation: Nascimento SS, Ferro LO, Silva EA, Felipe MTC, Souza-Motta CM, Bezerra JDP (2025). Introducing two new genera, Paivomyces gen. nov. and Pseudoselenophoma gen. nov., in Saccotheciaceae (Dothideales). Fungal Systematics and Evolution 16: 55-69. doi: 10.3114/fuse.2025.16.4.

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本文介绍了槐树科（多角蕨目）中两新属：双叶蕨（Paivomyces gen. 11 .）和拟硒蕨（pseudoselenopoma gen. 11 .）。

Saccotheciaceae家族的成员在各种环境中都有发现，并且有不同的生活方式。在巴西Caatinga干燥森林中对含羞草（Mimosa tenuflora）相关内生真菌进行研究时，分离物最初被鉴定为类似aureobasidium的真菌。基于ITS、LSU、tub2、rpb2和tef1基因序列的形态学特征和系统发育分析，这些内生菌被置于Saccotheciaceae的一个不同的分支中，与目前被接受的属不同。在这里，我们描述了一个新属，Paivomyces gen. 11（包括Paivomyces mimosae sp. 11）。此外，在我们的系统发育分析中，我们发现来自澳大利亚mineata桉叶的Selenophoma australiensis可以被视为Saccotheciaceae科属中一个独特的谱系。在此，我们介绍了Pseudoselenophoma gen. 11 .（包括Pseudoselenophoma australiensis comb）。11月)，以适应该物种。我们的发现提高了我们对巴西Caatinga干旱森林真菌多样性的认识，并阐明了Saccotheciaceae的系统发育谱系。引文：Nascimento SS， Ferro LO, Silva EA, Felipe MTC, Souza-Motta CM, Bezerra JDP（2025）。本文介绍了槐树科（多角蕨目）中两新属：双叶蕨（Paivomyces gen. 11 .）和拟硒蕨（pseudoselenopoma gen. 11 .）。真菌分类学与进化16:55-69。doi: 10.3114 / fuse.2025.16.4。

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来源期刊

Fungal systematics and evolution

CiteScore

7.30

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0.00%

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