Two new species and a new record of Astrocystis from Southwestern China

Two new species and a new record of Astrocystis from Southwestern China

Qi-Rui Li1, 2, You-Peng Wu1, Yin-Hui Pi1, Si-Han Long1, Nalin N. Wijaywardene1, 3, 4, Nakarin Suwannarach5, Li-LiLiu6, *

1State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, P. R. China. 2The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province (The Key Laboratory of Optimal Utilization of Natural Medicine Resources), School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guian New District, Guizhou, P. R. China. 3Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, P. R. China. 4Section of Genetics, Institute for Research and Development in Health and Social Care, No: 393/3, Lily Avenue, Off Robert Gunawardena Mawatha, Battaramulla 10120, Sri Lanka. 5Research Center of Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai 50200, Thailand. 6Immune Cells and Antibody Engineering Research Center of Guizhou Province/ Key Laboratory of Biology and Medical Engineering, Guizhou Medical University, Guiyang 550004, P. R. China. *Correspondence: lililiu550025@163.com

In this study, three species of Astrocystis were collected from bamboo culms in Guizhou and Yunnan Provinces in China. Morphological characteristics and phylogenetic analyses (based on ITS, rpb2, β-tubulin and α-actin gene regions) supported the proposal of two new species viz., Astrocystis pseudomirabilis sp. nov. and A. tessellati sp. nov. and a new record of A. sublimbata from China. Astrocystis pseudomirabilis can be distinguished from A. mirabilis by its larger stromata (0.64–0.83 × 0.38–0.52 mm vs. 0.4–0.6 × 0.2–0.5 mm) and larger ascospores (11–14 × 6–8 μm vs. 10–12 × 4.5–6 μm). Astrocystis tessellati differs from A. multiloculata by its smaller ascospores (16.2–19.2 × 7.2–9 μm vs. 19–25 × 7–11 μm).Astrocystis pseudomirabilis and A. tessellati form two distinct clades within Astrocystis.

Li Q-R, Wu Y-P, Pi Y-H, Long S-H, Wijayawardene NN, Suwannarach N, Liu L-L(2022) Two new species and a new record of Astrocystis from Southwestern China. MycoAsia 2022/08. 

Received: 25.08.2022 | Accepted: 28.08.2022 | Published: 28.09.2022 | Handling Editor: Dr. Belle Damodara Shenoy | Reviewers: Dr. Gunjan Sharma, Dr. K. C. Rajeshkumar

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