Lichenized Fungi: A Themed Issue Dedicated to Academician Jiang-Chun Wei

A Special Issue of Journal of Fungi (ISSN 2309-608X).

Deadline for manuscript submissions: 30 September 2026 | Viewed by 3838

Editors


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Guest Editor
State Key Laboratory of Microbial Diversity and Innovative Utilization, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
Interests: fungi; lichen; biodiversity; biogeography; evolution; symbiosis

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Guest Editor
Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
Interests: fungal diversity; application and development of medicinal fungi; lichen

Special Issue Information

Dear Colleagues,

Jiangchun Wei is a Professor of the Institute of Microbiology, Chinese Academy of Sciences (IMCAS) and University of Chinese Academy of Sciences (UCAS), Academician of CAS, Former Deputy Director of IMCAS, and Founder of Chinese Lichenology. He pioneered lichen studies in China after being dispatched to the USSR in 1958 to fill a critical research gap. He was awarded Candidate of Biological Sciences (Ph.D. equivalent) by the Academy of Sciences of the USSR in 1962. Upon returning to China, he founded the Chinese lichenology discipline and established the nation’s inaugural lichen herbarium, now depositing over 160,000 specimens, most meticulously documented by his own hand. He was awarded Doctor of Biological Sciences by the Russian Academy of Sciences in 1995. He has conducted extensive research on lichen taxonomy and flora in China. His systematic revision of the family Umbilicariaceae (rock tripe lichens), based on integrative analysis, was internationally recognized and incorporated into Outline of the Ascomycete System (1993) and Dictionary of the Fungi (8th ed., 1995). He further validated this taxonomic system through nuclear rDNA sequencing, establishing the new order Umbilicariales. His seminal works include Umbilicariaceae in Asia, An Enumberation of Lichens in China, Enumeration of the Lichenized Fungi in China, and the Homologous Biosystematics of the Umbilicariaceae (Ascomycota) in the world, etc. He initiated and coordinated the nationwide compilation of the Cryptogamic Flora of China, serving as Editor-in-Chief of its fifth editorial board, authored more than 100 research papers and 10 monographs. Prof. Wei is the first Chinese lichenologist to conduct field studies on Mount Qomolangma and Antarctica. He co-authored Lichens of Xizang as part of the Qinghai-Xizang Plateau Series and was awarded the CAS Special Prize for Advances in Science and Technology (1986). He led Antarctic terrestrial ecosystem research and was awarded Special Prize (1996) and Second Prize (1997) for Scientific and Technological Progress by the State Oceanic Administration of China with his Fildes Peninsula research findings. His group published the first genome of lichen-forming fungus Endocarpon pusillum and comparative transcriptome, revealing genes related to drought stress and laying an important foundation for the study of drought-resistant genes and the application of drought-resistant gene-transformed plants in the “desert biological carpet engineering” proposed by Prof. Wei. His group also established the first genetic manipulation system, greatly advancing the progress of lichen symbiotic molecular research. In addition, his group achieved the first deployment of lichen as space research materials and space biology research in China, advancing the study of lichen symbiotic stress resistance to a new level.

Through decades of unwavering commitment, Prof. Wei has fulfilled his mission to establish lichenology in China, paving the way for future scholars and earning the title “Father of Chinese Lichenology”. For over 70 years, Prof. Wei has dedicated his life to what he deems the greatest and most magnificent career: the relentless advancement of lichen science for his motherland. 

The Journal of Fungi is pleased to announce a Special Issue honoring Prof. Jiangchun Wei for his outstanding contributions to lichenology. The submissions can be on any topic relevant to lichenology.

Prof. Dr. Xinli Wei
Prof. Dr. Tao Zhang
Guest Editors

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Keywords

  • lichenology
  • biodiversity
  • evolution

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Published Papers (4 papers)

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Research

21 pages, 1412 KB  
Article
Optimal Partitioning for Molecular Phylogenetic Inference and Generic Delimitation in the Cetrarioid Core Group (Parmeliaceae, Ascomycota)
by Chaoyang Liu and Shouyu Guo
J. Fungi 2026, 12(9), 654; https://doi.org/10.3390/jof12090654 - 1 Sep 2026
Viewed by 273
Abstract
The species diversity of lichenized fungi remains largely underestimated, yet the number of species in the cetrarioid core group of Parmeliaceae has remained stable while generic delimitations have been highly debated. Here, we performed a partitioned phylogenetic analysis incorporating secondary structure characters of [...] Read more.
The species diversity of lichenized fungi remains largely underestimated, yet the number of species in the cetrarioid core group of Parmeliaceae has remained stable while generic delimitations have been highly debated. Here, we performed a partitioned phylogenetic analysis incorporating secondary structure characters of three ribosomal loci (ITS, mtSSU, and nuLSU) combined with comprehensive phenotypic traits. Based on the results, we hypothesized that a Large Temporal Band (29.0–35.0 Mya) may serve as a baseline threshold for most generic divergences, corresponding to late-Oligocene global cooling and the primary cladogenesis of cetrarioid core lineages as documented in previous molecular dating studies. Additionally, we suggest a Small Temporal Band (14.0–18.0 Mya) for a subset of recently radiated genera that originated during the Mid-Miocene Climatic Optimum transition (~16 Mya). Two currently accepted genera (Cetraria and Nephromopsis) are largely supported in their current circumscriptions. Two new genera, Cetramelanelia and Tuckermanoides, are proposed to accommodate a clade of two species from Cetrariella and Tuckermanopsis platyphylla, respectively. Allocetraria is confirmed to resurrect as a genus separate from Cetraria, with Usnocetraria and Vulpicida treated as its synonyms. Foveolaria is reduced to synonymy with Nephromopsis. Ten new combinations and one new synonym at the species level are made. A dual-band temporal hypothesis for generic delimitation appears taxonomically reasonable for most macrolichens. Full article
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17 pages, 4188 KB  
Article
Establishment of an Efficient CRISPR-Cas9-Mediated Gene Disruption System in the Lichen-Forming Fungus Umbilicaria muhlenbergii
by Zeyi Wang, Niuniu Wang, Haiyu Zhang, Ben Qian, Diwen Wang and Yanyan Wang
J. Fungi 2026, 12(8), 622; https://doi.org/10.3390/jof12080622 - 19 Aug 2026
Viewed by 422
Abstract
Lichen-forming fungi establish intimate symbiotic associations with photosynthetic partners and play important roles in diverse ecosystems, but functional genetic studies in these organisms remain limited by the lack of efficient genome-editing tools. In this study, we established an efficient CRISPR-Cas9-mediated gene disruption system [...] Read more.
Lichen-forming fungi establish intimate symbiotic associations with photosynthetic partners and play important roles in diverse ecosystems, but functional genetic studies in these organisms remain limited by the lack of efficient genome-editing tools. In this study, we established an efficient CRISPR-Cas9-mediated gene disruption system in Umbilicaria muhlenbergii. Using this system, we achieved the targeted disruption of six candidate transcription factors with a high replacement efficiency of up to 65.0%. No off-target mutations were detected in any of the three independent mutants examined for each target gene. Preliminary phenotypic characterization of the resulting mutants revealed that disruption of UmSOM1 markedly impaired fungal growth, induced pseudohyphal development, and altered colony morphology and pigmentation. Compared with conventional homologous recombination, the CRISPR-Cas9 system substantially improved gene disruption efficiency, thereby overcoming a major limitation in the genetic manipulation of lichen-forming fungi. This system provides a robust platform for functional genomic studies and will accelerate investigations into the molecular mechanisms underlying fungal–algal symbiosis and morphological transitions in lichen-forming fungi. Full article
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19 pages, 14311 KB  
Article
Three New Species of Pyrenula (Ascomycota, Pyrenulales, Pyrenulaceae) from China
by Xue Li, Lihua Chen, Wenting Liu, André Aptroot and Mingzhu Dou
J. Fungi 2026, 12(7), 529; https://doi.org/10.3390/jof12070529 - 18 Jul 2026
Viewed by 548
Abstract
The lichenized fungal genus Pyrenula Ach. is one of the most common groups of crustose lichens in tropical and subtropical regions, but there has been little research on this genus in China. Based on an integrative taxonomic method including morphological, chemical characters, and [...] Read more.
The lichenized fungal genus Pyrenula Ach. is one of the most common groups of crustose lichens in tropical and subtropical regions, but there has been little research on this genus in China. Based on an integrative taxonomic method including morphological, chemical characters, and three-locus phylogenetic analyses, we found three new Pyrenula species from southern China. Pyrenula falcatispora sp. nov. is characterized by multiseptate (7–9-septate), falciform ascospores with pointed ends, and the presence of pseudocyphellae; Pyrenula rectiloculata sp. nov. is characterized by elongate-fusiform ascospores (5–7(–8)-septate) with pointed ends and rectangular lumina, the absence of pseudocyphellae, and the inspersed hamathecium; Pyrenula jinghongensis sp. nov. is unique in having 2-spored asci, large and muriform ascospores with 14–19 transverse septa. Phylogenetic analyses confirmed that these three species form independent lineages within the genus. Detailed descriptions, illustrations, and comparisons with morphologically similar taxa are provided. Notably, taxa with ascospores more than four times as long as wide or 2-spored asci were uncommon within the genus Pyrenula. This is the first report of transversely septate Pyrenula taxa with ascospores more than four times as long as wide in China. Meanwhile, a key for the Pyrenula species reported in China is provided. Full article
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17 pages, 5150 KB  
Article
Three New Species and Three New Records of Arthoniaceae (Ascomycota, Arthoniales) from China
by Chengyue Hao, Shuhua Jiang and Zefeng Jia
J. Fungi 2026, 12(1), 42; https://doi.org/10.3390/jof12010042 - 6 Jan 2026
Cited by 1 | Viewed by 1571
Abstract
Based on morphological and phylogenetic analyses, during a study on the biodiversity of the lichenized fungi family Arthoniaceae in Yunnan, China, three new species of Arthonia, Eremothecella, and Synarthonia (Arthonia yunnanensis sp. nov., A. pararubella sp. nov., Eremothecella pruinocarpa sp. [...] Read more.
Based on morphological and phylogenetic analyses, during a study on the biodiversity of the lichenized fungi family Arthoniaceae in Yunnan, China, three new species of Arthonia, Eremothecella, and Synarthonia (Arthonia yunnanensis sp. nov., A. pararubella sp. nov., Eremothecella pruinocarpa sp. nov.) and three new Chinese records (A. rubella, E. calamicola, Synarthonia inconspicua) were reported in this present study. A phylogenetic analysis using maximum likelihood and Bayesian inference based on a two-gene dataset (mtSSU and RPB2) revealed that all these species form distinct independent clades. In addition, this study represents the first report of molecular sequences for the genus Eremothecella. Detailed descriptions, ecological and chemical characteristics, and illustrations for each species are provided. Full article
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