Related Experiment Video
Updated: Sep 13, 2025

Quantification of Fungal Colonization, Sporogenesis, and Production of Mycotoxins Using Kernel Bioassays
Published on: April 23, 2012
Resistance risk and mechanism of prochloraz in Fusarium solani
Xuewei Mao1, Tangbo Cao2, Liting Chen2
1College of Plant Protection, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory of Creation and Application of New Pesticide, Henan Agricultural University, Zhengzhou 450046, China; Henan Research Center of Green Pesticide Engineering and Technology, Henan Agricultural University, Zhengzhou 450046, China; Postdoctoral station of Crop science, Henan Agricultural University, Zhengzhou, 450046, China.
Abstract:
Peanut root rot (PRR) is caused by Fusarium solani, which severely affects the yield and quality of peanuts. Prochloraz is a triazole-based demethylation inhibitor (DMIs) fungicide with antifungal activity against Fusarium spp. However, the resistance risk and resistance mechanisms of F. solani to prochloraz remain poorly understood. In the current study, the EC50 values of 98 F. solani isolates to prochloraz ranged from 0.029 to 0.40 μg/mL, with a mean of 0.14 ± 0.07 μg/mL, and the sensitivity exhibited a unimodal distribution. Seven prochloraz-resistant (ProR) mutants were obtained through fungicide adaptation, and the resistance factor (RF) ranged from 5.81 to 83.33. The mutants demonstrated reduced fitness in mycelial dry weight and asexual reproduction. No cross-resistance was observed between prochloraz and other fungicides, including tebuconazole, pyraclostrobin, and fluazinam. Overexpression of FsCYP51A, FsCYP51B, FsMFS1, and FsMFS2 genes was detected in the resistant mutants. These results demonstrate that the risk of F. solani developing resistance to prochloraz is relatively low, and the overexpression of FsCYP51 and FsMFS may contribute to prochloraz resistance in F. solani. This study provides essential data for the resistance monitoring and resistance management strategies for prochloraz.
More Related Videos
09:21Inhibition of Aspergillus flavus Growth and Aflatoxin Production in Transgenic Maize Expressing the α-amylase Inhibitor from Lablab purpureus L.
Published on: February 15, 2019
11:48A Contrast of Three Inoculation Techniques used to Determine the Race of Unknown Fusarium oxysporum f.sp. niveum Isolates
Published on: October 28, 2021
Related Concept Videos
Fungal Group Zygomycota
Fungal Phylum Ascomycota
Fungal Phylum Microsporidia
Gene Regulation in Microbial Communities: Quorum Sensing