Peniophora salaccae sp.

IF 1 4区生物学 Q3 PLANT SCIENCES

Phytotaxa Pub Date : 2024-08-08 DOI:10.11646/phytotaxa.662.2.2

Sawai Boukaew, J. Kumla, N. Suwannarach

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引用次数: 0

摘要

据了解，蛇果属植物分布于世界各地的寒带和热带地区。2022 年和 2023 年在泰国南部进行植物病害调查时，采集到两份腐烂蛇果（Salacca zalacca）标本。根据采集到的形态学和分子数据，描述了新物种 P. salaccae。该物种的特征为橙灰色至棕橙色基部体、单隔生菌丝、棕色灯囊虫、近棍棒形至近圆柱形球囊虫和近三角形基部孢子。它可以通过较大的基生孢子和较短的灯囊虫与 P. trigonosperma 区分开来。核糖体 DNA（rDNA）内部转录间隔（ITS）和大亚基（nrLSU）的分子系统学分析证实了该新种在 Peniophora 属中的位置。本文提供了完整的描述、彩色照片、插图以及显示 P. salaccae 位置的系统发生树。此外，致病性测试表明，P. salaccae 可感染蛇果，在人工接种条件下，蛇果会出现与实地观察相同的症状。

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Peniophora salaccae sp. nov. (Russulales, Basidiomycota), a snake fruit (Salacca zalacca) pathogen from southern Thailand

The genus Peniophora is known to be distributed from boreal to tropical regions worldwide. During surveys of plant diseases in southern Thailand in 2022 and 2023, two specimens of rotten snake fruits (Salacca zalacca) were collected. The new species, P. salaccae, is described based on collections with morphological and molecular data. This species is characterized by orange-gray to brownish-orange basidiomes, simple-septate generative hyphae, brown lamprocystidia, subclavate to subcylindrical gloeocystidia, and subtriangular basidiospores. It can be distinguished from P. trigonosperma by its larger basidiospores and shorter lamprocystidia. Molecular phylogenetic analyses of the internal transcribed spacers (ITS) and the large subunit (nrLSU) of the nuclear ribosomal DNA (rDNA) confirmed the position of the new species within the genus Peniophora. The full description, color photographs, illustrations, and the phylogenetic tree showing the position of P. salaccae are provided. Additionally, pathogenicity tests showed that P. salaccae could infect snake fruits, which developed the same symptoms under artificial inoculation conditions as those observed in the field.

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来源期刊

Phytotaxa PLANT SCIENCES-

CiteScore

1.90

自引率

27.30%

发文量

956

审稿时长

1 months

期刊介绍： Phytotaxa is a peer-reviewed, international journal for rapid publication of high quality papers on any aspect of systematic and taxonomic botany, with a preference for large taxonomic works such as monographs, floras, revisions and evolutionary studies and descriptions of new taxa. Phytotaxa covers all groups covered by the International Code of Nomenclature foralgae, fungi, and plants ICNafp (fungi, lichens, algae, diatoms, mosses, liverworts, hornworts, and vascular plants), both living and fossil. Phytotaxa was founded in 2009 as botanical sister journal to Zootaxa. It has a large editorial board, who are running this journal on a voluntary basis, and it is published by Magnolia Press (Auckland , New Zealand). It is also indexed by SCIE, JCR and Biosis. All types of taxonomic, floristic and phytogeographic papers are considered, including theoretical papers and methodology, systematics and phylogeny, monographs, revisions and reviews, catalogues, biographies and bibliographies, history of botanical explorations, identification guides, floras, analyses of characters, phylogenetic studies and phytogeography, descriptions of taxa, typification and nomenclatural papers. Monographs and other long manuscripts (of 60 printed pages or more) can be published as books, which will receive an ISBN number as well as being part of the Phytotaxa series.