Dataset Information

Morphology, Phylogeny, and Pathogenicity of Pestalotioid Species on Camellia oleifera in China.

ABSTRACT: Tea-oil tree (Camellia oleifera) is an important edible oil woody plant with a planting area of over 3,800,000 hectares in southern China. Pestalotioid fungi are associated with a wide variety of plants worldwide along with endophytes, pathogens, and saprobes. In this study, symptomatic leaves of C. oleifera were collected from Guangdong, Guangxi, Hainan, Hunan, and Jiangsu Provinces and pestalotioid fungi are characterized based on combined sequence data analyses of internal transcribed spacer (ITS), beta tubulin (tub2), and translation elongation factor 1-alpha (tef-1α) coupled with morphological characteristics. As a result, seven species were confirmed, of which five species are described as new viz. N. camelliae-oleiferae, P. camelliae-oleiferae, P. hunanensis, P. nanjingensis, P.nanningensis, while the other two are reported as known species, viz., N. cubana and N. iberica. Pathogenicity assays showed that all species except for P. nanjingensis developed brown lesions on healthy leaves and P. camelliae-oleiferae showed stronger virulence.

SUBMITTER: Li L

PROVIDER: S-EPMC8705482 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature

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Publications

Morphology, Phylogeny, and Pathogenicity of Pestalotioid Species on Camellia oleifera in China.

Li Lingling L Yang Qin Q Li He H

Journal of fungi (Basel, Switzerland) 20211215 12

Tea-oil tree (Camellia oleifera) is an important edible oil woody plant with a planting area of over 3,800,000 hectares in southern China. Pestalotioid fungi are associated with a wide variety of plants worldwide along with endophytes, pathogens, and saprobes. In this study, symptomatic leaves of C. oleifera were collected from Guangdong, Guangxi, Hainan, Hunan, and Jiangsu Provinces and pestalotioid fungi are characterized based on combined sequence data analyses of internal trans ...[more]

PMID: 34947061

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Project description:Wood-decaying fungi represent a vital group of higher fungi that drive the cycling of matter and energy in forest ecosystems, and they have been the focus of thorough investigation. In this study, five new species, viz. Botryobasidiumdaweishanense, Inonotussubglobisporum, Kneiffiellabubalina, Xylodongranulanoides, and X.granulans from China, are described and illustrated based on the morphological characteristics and molecular phylogenetic analyses, in which the sequences of ITS+nLSU genes were used for the phylogenetic analyses by maximum likelihood and Bayesian inference methods. The phylogeny revealed that the Botryobasidiumdaweishanense groups with three taxa, viz., B.intertextum, B.leptocystidiatum, and B.subcoronatum. Inonotussubglobisporum is closely related to I.radiatus. Kneiffiellabubalina clustered sister to K.subalutacea. Xylodongranulanoides and X.granulans have a close relationship with X.bambusinus, X.fissuratus, X.subclavatus, X.montanus, and X.wenshanensis. Additionally, Xylodongranulanoides and X.granulans clustered together. Botryobasidiumdaweishanense is characterized by an araneose hymenial surface, fusiform, and cyanophilous basidiospores (6.1-7.3 × 3.3-3.9 μm). Inonotussubglobisporum is characterized by perennial basidiomata with lateral stipes, polygon pores measuring 4-6 per mm, and subglobose, cyanophilous basidiospores (3.6-4.3 × 2.8-3.5 μm). Kneiffiellabubalina is characterized by cream basidiomata and cylindrical to slightly allantoid basidiospores (8.0-8.9 × 1.8-2.3 μm). Xylodongranulanoides is characterized by grandinioid hymenial surfaces, various cystidia, and broadly ellipsoid, thick-walled basidiospores (4.7-5.3 × 3.6-4.1 μm). Xylodongranulans is characterized by grandinioid hymenial surfaces, capitate and clavate cystidia, and broadly ellipsoid basidiospores (3.8-4.2 × 2.9-3.3 μm). Phylogenetic analysis based on internal transcribed spacer (ITS) and nuclear large subunit RNA (nLSU) shows that the four species are members of Hymenochaetales, and one belongs to Cantharellales. All five new species are compared with morphologically and phylogenetically closely related species. The present study contributes to understanding the species diversity, taxonomy, and phylogeny of macrofungi in Southwestern China.

Dataset Information

Morphology, Phylogeny, and Pathogenicity of Pestalotioid Species on Camellia oleifera in China.

Publications

Morphology, Phylogeny, and Pathogenicity of Pestalotioid Species on <i>Camellia oleifera</i> in China.

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