Selection and Formulation of Endophytic Bacteria as Plant Resistance Elicitor against Wilt Disease of Tomato

Arika Purnawati, Wiwik Harjani, Herry Nirwanto


Wilt disease of Solanaceae caused by Ralstonia solanacearum reduce the crop quality and negatively affect the crop product. The objective of this research was to discover of endophytic bacteria formulation that effectively decreases bacterial which cause wilt disease on Solanaceae. The research consisted of purification of Ralstonia solanacearum, endophytic bacteria were obtained from the sample and the screening of endophytic bacteria using this following assay: antagonist assay, seedling assay and in planta assay. The results showed that in antagonist assay, the bacterial isolate code PS1, PS2, and PS8 could inhibit growth of R. solanacearum. From the seedling assay, it obtained that all of the isolates increased of percentage of germination, seed coating and powder formulation can decrease disease incidence of bacterial wilt disease.


Biocontrol; Endophytic bacteria; Ralstonia solanacearum; Wilt disease

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