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Agronomy
Volume 15
Issue 5
10.3390/agronomy15051215
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Identification, Pathogenicity and Fungicide Sensitivity of Colletotrichum Species Causing Anthracnose on Polygonatum cyrtonema Hua

by
Huixia Cai
1,2,†,
Jinxin Li
1,2,3,†,
Yanling Du
1,2,
Di Wu
1,2,
Jinyi Chen
1,2,
Hong Chen
1,2,
Kaili Qu
1,2,
Yuhuan Miao
1,2,* and
Dahui Liu
1,2,*
1
Pharmacy Faculty, Hubei University of Chinese Medicine, Wuhan 430065, China
2
Hubei Shizhen Laboratory, Hubei University of Chinese Medicine, Wuhan 430065, China
3
Hubei Monyan Pharmaceutical Co., Ltd., Jingmen 448124, China
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Agronomy 2025, 15(5), 1215; https://doi.org/10.3390/agronomy15051215 (registering DOI)
Submission received: 1 April 2025 / Revised: 14 May 2025 / Accepted: 15 May 2025 / Published: 16 May 2025
(This article belongs to the Section Pest and Disease Management)
Versions Notes

Abstract

Anthracnose significantly threatens the cultivation of Polygonatum cyrtonema, severely impacting its quality and yield. Between 2022 and 2023, 50 Colletotrichum isolates were obtained from diseased leaves collected in three P. cyrtonema production areas within the Two Lakes region of China (Hubei and Hunan provinces). Morphological and molecular analyses identified six Colletotrichum species as the causative agents of anthracnose: C. aenigma, C. siamense, C. gloeosporioides, C. spaethianum, C. fructicola, and C. karsti. Among these pathogens, C. fructicola and C. spaethianum were predominant (82%), while C. siamense and C. fructicola exhibited the highest aggressiveness. Physiological investigations revealed that the optimal temperature range for all six pathogens was 25–28 °C. C. spaethianum thrived under acidic conditions, whereas C. aenigma, C. siamense, and C. gloeosporioides preferred alkaline environments. In contrast, C. fructicola and C. karsti showed no significant response to pH variations. Fungicide screening demonstrated that pyraclostrobin, prochloraz, and carbendazim effectively inhibited the growth of Colletotrichum species. These findings elucidate the epidemiological factors, primary pathogens, and effective control agents for P. cyrtonema anthracnose in the Two Lakes region, providing a basis for developing targeted prevention and control strategies.
Keywords: Polygonatum cyrtonema; phylogenetic analysis; anthracnose; biological characteristic; fungicide sensitivity Polygonatum cyrtonema; phylogenetic analysis; anthracnose; biological characteristic; fungicide sensitivity

Share and Cite

MDPI and ACS Style

Cai, H.; Li, J.; Du, Y.; Wu, D.; Chen, J.; Chen, H.; Qu, K.; Miao, Y.; Liu, D. Identification, Pathogenicity and Fungicide Sensitivity of Colletotrichum Species Causing Anthracnose on Polygonatum cyrtonema Hua. Agronomy 2025, 15, 1215. https://doi.org/10.3390/agronomy15051215

AMA Style

Cai H, Li J, Du Y, Wu D, Chen J, Chen H, Qu K, Miao Y, Liu D. Identification, Pathogenicity and Fungicide Sensitivity of Colletotrichum Species Causing Anthracnose on Polygonatum cyrtonema Hua. Agronomy. 2025; 15(5):1215. https://doi.org/10.3390/agronomy15051215

Chicago/Turabian Style

Cai, Huixia, Jinxin Li, Yanling Du, Di Wu, Jinyi Chen, Hong Chen, Kaili Qu, Yuhuan Miao, and Dahui Liu. 2025. "Identification, Pathogenicity and Fungicide Sensitivity of Colletotrichum Species Causing Anthracnose on Polygonatum cyrtonema Hua" Agronomy 15, no. 5: 1215. https://doi.org/10.3390/agronomy15051215

APA Style

Cai, H., Li, J., Du, Y., Wu, D., Chen, J., Chen, H., Qu, K., Miao, Y., & Liu, D. (2025). Identification, Pathogenicity and Fungicide Sensitivity of Colletotrichum Species Causing Anthracnose on Polygonatum cyrtonema Hua. Agronomy, 15(5), 1215. https://doi.org/10.3390/agronomy15051215

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