Identification and Pathogenicity of Pestalotioid Species on <i>Alpinia oxyphylla</i> in Hainan Province, China

Xiufen Cui; Zhigang Hao; Menghuai Chen; Shuang Song; Jinan Zhang; Yingbin Li; Jianqiang Li; Yixiang Liu; Laixin Luo

doi:10.3390/jof10060371

Journal of Fungi (May 2024)

Identification and Pathogenicity of Pestalotioid Species on <i>Alpinia oxyphylla</i> in Hainan Province, China

Xiufen Cui,
Zhigang Hao,
Menghuai Chen,
Shuang Song,
Jinan Zhang,
Yingbin Li,
Jianqiang Li,
Yixiang Liu,
Laixin Luo

Affiliations

Xiufen Cui: Beijing Key Laboratory of Seed Disease Testing and Control, Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
Zhigang Hao: Beijing Key Laboratory of Seed Disease Testing and Control, Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
Menghuai Chen: Beijing Key Laboratory of Seed Disease Testing and Control, Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
Shuang Song: Beijing Key Laboratory of Seed Disease Testing and Control, Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
Jinan Zhang: Beijing Key Laboratory of Seed Disease Testing and Control, Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
Yingbin Li: Department of Pesticide Science, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
Jianqiang Li: Beijing Key Laboratory of Seed Disease Testing and Control, Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
Yixiang Liu: Department of Plant Pathology, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
Laixin Luo: Beijing Key Laboratory of Seed Disease Testing and Control, Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China

DOI: https://doi.org/10.3390/jof10060371
Journal volume & issue: Vol. 10, no. 6
p. 371

Abstract

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Alpinia oxyphylla is a traditional Chinese medicinal plant with a medicinal history of more than 1700 years. Ring leaf blight (RLB) disease, caused by pestalotioid species, is an important disease of A. oxyphylla, seriously affecting the yield and quality of its fruits. The causal agent of RLB disease has not been systematically identified or characterized yet. In this study, thirty-six pestalotioid strains were isolated from the leaves and stems of A. oxyphylla that was collected from six cities of Hainan province, China. Based on the multi-locus phylogeny (ITS, tef-1α and tub2) and morphological characteristic analyses, seventeen species belonging to three genera (Neopestalotiopsis, Pestalotiopsis and Pseudopestalotiopsis) were identified, and six new species (N. baotingensis, N. oblatespora, N. olivaceous, N. oxyphylla, N. wuzhishanensis and N. yongxunensis) were described. Pathogenicity tests revealed that strains of Neopestalotiopsis species caused more severe ring leaf blight on A. oxyphylla than strains of Pestalotiopsis and Pseudopestalotiopsis under wounded inoculation conditions.

Published in Journal of Fungi

ISSN: 2309-608X (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Biology (General)
Website: http://www.mdpi.com/journal/jof

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