Pathogenic Diversity in Fusarium oxysporum: A Comparative Isolate Analysis
Ayush Gupta *
Department of Plant Pathology, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur- 492012 (C.G), India.
Ashwarya L. Tandon
Department of Plant Pathology, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur- 492012 (C.G), India.
Suresh Kumar Sahu
Department of Plant Pathology, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur- 492012 (C.G), India.
Rahul Sahu
Department of Plant Pathology, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur- 492012 (C.G), India.
*Author to whom correspondence should be addressed.
Abstract
Fusarium oxysporum is a significant fungal pathogen responsible for wilt diseases across a wide range of host plants. Understanding the pathogenic diversity within its isolates is critical for developing effective disease management strategies. This study investigates the pathogenic variability among diverse isolates of F. oxysporum collected from different geographic regions and host plants. Pathogenicity tests were conducted under controlled conditions. Pathogenicity tests were conducted by seed inoculation technique and soil inoculation method. Among all the tests FO1 (Fusarium oxysporum-1) was found to be more virulent and FO4 (Fusarium oxysporum-4) was least virulent. Correlations between pathogenicity and specific isolate characteristics, such as origin and host specialization, were also identified. These findings underscore the importance of recognizing isolate-specific pathogenic traits for designing targeted interventions, including resistant crop varieties and region-specific management practices.
Keywords: Soybean, Fusarium oxysporum, pathogenicity test, seed inoculation technique, soil inoculation method