Microbial Taxonomy: With an Emphasis of Lesser-Studied Taxonomic Groups

A Special Issue of Taxonomy (ISSN 2673-6500).

Deadline for manuscript submissions: 31 December 2026 | Viewed by 3186

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State Key Laboratory of Microbial Diversity and Innovative Utilization, Institute of Microbiology, Chinese Academy of Sciences, No. 1 Beichen West Road, Chaoyang District, Beijing 100101, China
Interests: fungal taxonomy, diversity and nomenclature; evolutionary and conservation biology; utilization of medicinal and ligninolytic fungi; microbial diversity and community
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Special Issue Information

Dear Colleagues,

Microorganisms are an important biological group that is distributed almost everywhere on Earth. Nevertheless, the knowledge of microbial diversity remains limited, especially compared with that of animals and plants. One significant issue, among others, is that the taxonomy of many microbial groups has never been systematically addressed. When early career taxonomists just begin their independent research, they quite possibly or say should choose to work on certain lesser-studied microbial groups. Accordingly, this Special Issue intends to provide a platform for the global early career taxonomists to showcase their pioneering ideas and solid results of initial research on targeted microbial groups and, more importantly, help to build collaborative networks. It is noteworthy that some established taxonomists may also expand their interests to lesser-studied microbial groups at least for their own. Such cases also fit with the purpose of this Special Issue. We invite contributions that leverage the modern taxonomic practice, from molecular phylogenetics, genomics and bioinformatics to advanced morphological examination and machine learning, to resolve taxonomic challenges, propose perspectives of nomenclature, describe novel taxa, and refine the classification of all microbial groups, including but not limited to bacteria, archaea, viruses and microbial Eukaryotes. Join us, please, in shaping the future of microbial systematics and stimulating the continued growth of this fundamental discipline.

Prof. Dr. Li-Wei Zhou
Guest Editor

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Keywords

  • microorganisms
  • microbial diversity
  • nomenclature
  • taxonomy
  • phylogeny
  • systematics
  • evolution
  • conservation

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Published Papers (2 papers)

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Research

26 pages, 16195 KB  
Article
First Mexican Records of Seven Soil Penicillium and Talaromyces Species with Insights into Their Biotechnological Potential
by Rosa María Arias Mota, Gabriela Heredia Abarca, Alondra Guadalupe Martínez Santos and Rosario Gregorio Cipriano
Taxonomy 2026, 6(3), 47; https://doi.org/10.3390/taxonomy6030047 - 11 Aug 2026
Viewed by 623
Abstract
Penicillium and Talaromyces are among the most diverse genera of filamentous fungi and play important ecological roles in soil ecosystems. Despite their ecological and biotechnological relevance, the diversity of these genera remains insufficiently documented in many tropical regions of Mexico. This study aimed [...] Read more.
Penicillium and Talaromyces are among the most diverse genera of filamentous fungi and play important ecological roles in soil ecosystems. Despite their ecological and biotechnological relevance, the diversity of these genera remains insufficiently documented in many tropical regions of Mexico. This study aimed to identify species of Penicillium and Talaromyces isolated from soils in Veracruz, Mexico, using an integrative taxonomic approach and to evaluate selected functional traits associated with their biotechnological potential. Species identification was achieved through an integrative framework combining morphology and multilocus phylogenetic analyses. Functional characterization included qualitative assessments of laccase, manganese peroxidase, lignin peroxidase, cellulolytic activity, and phosphate-solubilizing capacity. Seven species were identified, all of which are reported here for the first time from Mexico: Penicillium citreosulfuratum, P. citrinum, P. crustosum, P. mallochii, P. shanghaiense, Talaromyces albobiverticillius, and T. aculeatus. Several isolates exhibited ligninolytic, cellulolytic, and phosphate-solubilizing activities, indicating their potential roles in organic matter decomposition, nutrient cycling, and sustainable agricultural applications. These findings expand the known distribution of Penicillium and Talaromyces in Mexico, contribute to the documentation of the country’s fungal diversity, and demonstrate the value of integrative taxonomy for revealing previously unrecorded fungal taxa in tropical soil ecosystems. Full article
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17 pages, 12080 KB  
Article
Two New Fungal Species in the Hypocreales from the Soil in Ngari Prefecture, Xizang, China
by Shu-Yang Xia, Peng-Wei Su, Xiao-Jian Wang, Shi-Liang Liu, Ling Liu and Li-Wei Zhou
Taxonomy 2026, 6(1), 10; https://doi.org/10.3390/taxonomy6010010 - 13 Jan 2026
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Abstract
Fungal diversity has been well explored worldwide, but such knowledge in special environments remains limited. Here, we focus on the soil from Ngari Prefecture with high altitude in the northwestern part of Xizang, China. Among the 514 fungal strains isolated from the soil [...] Read more.
Fungal diversity has been well explored worldwide, but such knowledge in special environments remains limited. Here, we focus on the soil from Ngari Prefecture with high altitude in the northwestern part of Xizang, China. Among the 514 fungal strains isolated from the soil samples, two strains are newly described as Cymostachys pangongensis and Emericellopsis rutogensis in the Hypocreales on the basis of both morphological and phylogenetic evidence. Cymostachys pangongensis exhibits typical characteristics of Cymostachys, viz., irregularly cymosely branched conidiophores and olivaceous brown to dark brown, fabiform conidia. It represents the sixth known species of Cymostachys and the first species isolated from soils in this genus. Emericellopsis rutogensis has typical chlamydospores and conidia of Emericellopsis, although its sexual ascomata and ascospores were not observed. Notably, these two new species belong to interesting fungal genera, whose members are well known for rich medicinal natural products. In summary, this study enriches the knowledge of fungal diversity in special environments, and the isolated strains may provide important bioresources for future applications. Full article
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