New Species of Talaromyces (Fungi) Isolated from Soil in Southwestern China
School of Agriculture, Ludong University, Yantai 264025, China
State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
Authors to whom correspondence should be addressed.
Academic Editors: Fabiana Canini and Laura Zucconi
Received: 5 July 2021
Revised: 30 July 2021
Accepted: 1 August 2021
Published: 4 August 2021
Talaromyces species are distributed all around the world and occur in various environments, e.g., soil, air, living or rotten plants, and indoors. Some of them produce enzymes and pigments of industrial importance, while some cause Talaromycosis. Talaromyces marneffei, a well-known and important human pathogen, is endemic to Southeast Asia and causes high mortality, especially in HIV/AIDS patients and those with other immunodeficiencies. China covers 3 of the 35 global biodiversity hotspots. During the explorations of fungal diversity in soil samples collected at different sites of southwestern China, two new Talaromyces species, T. chongqingensis X.C. Wang and W.Y. Zhuang and T. wushanicus X.C. Wang and W.Y. Zhuang, were discovered based on phylogenetic analyses and morphological comparisons. They are described and illustrated in detail. Six phylogenetic trees of the sections Talaromyces and Trachyspermi were constructed based on three-gene datasets and revealed the phylogenetic positions of the new species. This work provided a better understanding of biodiversity and phylogeny of the genus. The results make the concepts of the two sections of Talaromyces well-established. The discovery will be beneficial for future evaluation of the potential usages and functions of the new species.