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ORIGINAL RESEARCH article
Front. Microbiol.
Sec. Microbe and Virus Interactions with Plants
Volume 16 - 2025 |
doi: 10.3389/fmicb.2025.1453460
Diaporthe betae sp. nov., a new species associating with sugar beet root rot in Heilongjiang Province, China
Provisionally accepted- 1 Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & School of Life Sciences; Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Molecular Biology, College of Heilongjiang Province; College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin, China
- 2 Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & School of Life Sciences; Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Molecular Biology, College of Heilongjiang Province, Heilongjiang University, Harbin, China
- 3 University of Mississippi, Oxford, Mississippi, United States
Sugar beet (Beta vulgaris L.) is an economically important crop grown worldwide. In production of sugar beet, root rot diseases are mostly caused by soil-borne fungi. During 2019 and 2023, we isolated a new pathogen twice from root rots of sugar beet in Heilongjiang Province, China. This pathogen causes symptoms such as red-brown or black lesions and tissue necrosis, and the pathogenicity of the causal organism was confirmed by Koch's postulates. Using morphological features of the isolates and multilocus phylogenetic analyses, we found that the new pathogen was different from previously described taxa in conidial morphology, molecular features and disease index. Thus, the pathogen was determined to be a new species, which we called Diaporthe betae sp. nov. The discovery of this new pathogenic fungus will help researchers elucidate the pathogenesis of sugar beet root rot and provide a theoretical basis for performing targeted monitoring, preventing diseases and implementing control measures.
Keywords: new species, Diaporthe, Phomopsis, new pathogen, Sugar beet
Received: 23 Jun 2024; Accepted: 06 Feb 2025.
Copyright: © 2025 Shao, Ma, Yu, Chen and Li. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Haiying Li, Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & School of Life Sciences; Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Molecular Biology, College of Heilongjiang Province, Heilongjiang University, Harbin, China
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