PJB-2015-189
RHIZOSPHERE MICROBIAL COMMUNITIES FROM RESISTANT AND SUSCEPTIBLE WATERMELON CULTIVARS SHOWED DIFFERENT RESPONSE TO FUSARIUM OXYSPORUM F. SP. NIVEUM INOCULATION
WU FENG-ZHI*1,2, CHEN SHAO-CAN1,2, CHANGCHUN-LING1,2，AN MEI-JUN1,2, ZHOU XIN-GANG1,2 AND XU WEI-HUI1,2
Abstract
Fusarium oxysporum f. sp. niveum (FON), a soil-borne pathogen of watermelon (Citrullus lanatus), can cause substantial production losses worldwide. In this study, plate culture and PCR-denaturing gradient gel electrophoresis (DGGE) methods were used to evaluate the effects of inoculation of Fusarium oxysporum f.sp. niveum on rhizosphere microbial communities of different watermelon cultivars to FON. Two methods indicated that the effects of watermelon rhizosphere microbial community of different resistance cultivars to FON were much different. Populations of culturable bacteria and actinomycetes in the rhizosphere of susceptible watermelon cultivar were significantly lower than in the resistant cultivar after inoculation (P
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