Dataset Information

Taxonomic and Phylogenetic Studies of Saprobic Fungi Associated with Mangifera indica in Yunnan, China.

ABSTRACT: Fungi are a large and diverse group of microorganisms, and although the estimated number of species ranges between 2 and 11 million, only around 150,000 species have been described thus far. The investigation of plant-associated fungi is beneficial for estimating global fungal diversity, for ecosystem conservation, and for the continued development of industry and agriculture. Mango, one of the world's five most economically important fruit crops, is grown in over 100 countries and has been demonstrated to have a great economical value. During surveys of mango-associated saprobic fungi in Yunnan (China), we discovered three new species (Acremoniisimulans hongheensis, Chaenothecopsis hongheensis and Hilberina hongheensis) and five new records. The phylogenetic analyses of multi-gene sequences (LSU, SSU, ITS, rpb2, tef1-α and tub2) coupled with morphological examinations were used to identify all the taxa.

SUBMITTER: Yang EF

PROVIDER: S-EPMC10301488 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature

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Taxonomic and Phylogenetic Studies of Saprobic Fungi Associated with <i>Mangifera indica</i> in Yunnan, China.

Yang Er-Fu EF Dai Dong-Qin DQ Bhat Jayarama D JD Dawoud Turki M TM Promputtha Itthayakorn I Adikaram Nimal N Stephenson Steven L SL Karunarathna Samantha C SC Tibpromma Saowaluck S

Journal of fungi (Basel, Switzerland) 20230616 6

Fungi are a large and diverse group of microorganisms, and although the estimated number of species ranges between 2 and 11 million, only around 150,000 species have been described thus far. The investigation of plant-associated fungi is beneficial for estimating global fungal diversity, for ecosystem conservation, and for the continued development of industry and agriculture. Mango, one of the world's five most economically important fruit crops, is grown in over 100 countries and has been demo ...[more]

PMID: 37367616

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Project description:The Ophiostomatales is an Ascomycete order of fungi that accommodates several tree pathogens and many species that degrade wood. These fungi are commonly vectored by Scolytine bark and ambrosia beetles. In recent years it has also been shown that hyperphoretic mites on these beetles can vector some Ophiostomatales. Little is known regarding the Ophiostomatales in China and we have consequently explored the diversity of these fungi associated with conifer-infesting beetles and mites in Yunnan province. Galleries and beetles were collected for 17 beetle species, while 13 mite species were obtained from six of these beetle species. Collectively, 340 fungal isolates were obtained, 45 from beetles, 184 from mites, 56 from galleries and 55 isolates where the specific niche was not clear. DNA sequences for five gene regions (ITS, LSU, BT, EF, and CAL) were determined for fungal isolates representing different morphological groups. Phylogenetic analyses confirmed the presence of 19 fungal taxa, including five novel species described here as Ophiostoma acarorumsp. nov., Ophiostoma brevipilosisp. nov., Graphilbum kesiyaesp. nov., Graphilbum puerensesp. nov., and Leptographium ningerensesp. nov.Ophiostoma ips was the most frequently isolated species, representing approximately 31% of all isolates. Six of 19 taxa were present on mites, beetles and in the galleries of the beetles, while three species were found on mites and galleries. Two species were found only on mites and one species only on a beetle. Although the numbers of beetles and mites were insufficient to provide statistical inferences, this study confirmed that mites are important vectors of the Ophiostomatales in China. We hypothesize that these mites are most likely responsible for horizontal transfer of fungal species between galleries of different beetle species. The fact that half of the fungal species found were new to science, suggests that the forests of east Asia include many undescribed Ophiostomatales yet to be discovered.

Dataset Information

Taxonomic and Phylogenetic Studies of Saprobic Fungi Associated with Mangifera indica in Yunnan, China.

Publications

Taxonomic and Phylogenetic Studies of Saprobic Fungi Associated with <i>Mangifera indica</i> in Yunnan, China.

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