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Journal of Integrative Agriculture  2020, Vol. 19 Issue (10): 2470-2476    DOI: 10.1016/S2095-3119(20)63257-9
Special Issue: 植物细菌真菌合辑Plant Bacteria/Fungus
Plant Protection Advanced Online Publication | Current Issue | Archive | Adv Search |
First report of a new potato disease caused by Galactomyces candidum F12 in China
SONG Su-qin1*, LÜ Zhuo1, 2*, WANG Jing2, ZHU Jing1, GU Mei-ying1, TANG Qi-yong1, ZHANG Zhi-dong1, WANG Wei1, ZHANG Li-juan1, WANG Bo1 
1 Institute of Applied Microbiology, Xinjiang Academy of Agricultural Sciences/Xinjiang Key Laboratory of Special Environmental Microbiology, Urumqi 830091, P.R.China
2 School of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi 830000, P.R.China
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Potato (Solanum tuberosum L.) is an important crop throughout the world.  An uncharacterized disease has been observed on potato plants during the growing season and tubers during the storage period from Nileke County, Qitai County and other locations in Xinjiang, China.  A particular fungus was consistently isolated from the infected potato plants and tubers.  Based on its morphology, molecular characteristics, pathogenicity test and internal transcribed spacer (ITS) sequence, the pathogens was identified as Galactomyces candidum F12.  Further study also showed that the hyphae and conidia of the pathogenic fungus grew faster as the temperature was 30°C, pH was 7, soluble starch was used as optimal carbon source and yeast powder as optimal nitrogen source.  In addition, 12-h continuous illumination light was beneficial to the hyphal growth, while 24-h continuous illumination was beneficial to the sporulation of the strain at 30°C.  To our knowledge, this is the first report of Galactomyces candidum causing leaf wilt and postharvest tuber rot on potato in China.
Keywords:  potato        pathogenicity        growing season        postharvest        Galactomyces candidum        tuber rot        biological characteristics  
Received: 19 November 2019   Accepted:
Fund: This study was supported by the Basic Scientific Research Fund Project of the Public Welfare Scientific Research Institute of Xinjiang Autonomous Region, China (KY2018012, KY2019020) and the Open Fund of Key Laboratory of Integrated Pest Management on Crop in Northwestern Oasis, Ministry of Agriculture and Rural Affairs, China (KFJJ202006).
Corresponding Authors:  Correspondence Song Su-qin, Tel: +86-991-4520524, E-mail:    
About author:  Lü Zhuo, Tel/Fax: +86-991-4520524, E-mail:; * These authors contributed equally to this study.

Cite this article: 

SONG Su-qin, Lü Zhuo, WANG Jing, ZHU Jing, GU Mei-ying, TANG Qi-yong, ZHANG Zhi-dong, WANG Wei, ZHANG Li-juan, WANG Bo. 2020. First report of a new potato disease caused by Galactomyces candidum F12 in China. Journal of Integrative Agriculture, 19(10): 2470-2476.

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