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

Abstract

<p>Wilt disease of <em>Solanaceae</em> caused by <em>Ralstonia solanacearum</em> 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 <em>Solanaceae</em>. The research consisted of purification of <em>Ralstonia solanacearum</em>, endophytic bacteria were obtained from the sample and the screening of endophytic bacteria using this following assay: antagonist assay, seedling assay and <em>in planta</em> assay. The results showed that in antagonist assay, the bacterial isolate code PS<sub>1</sub>, PS<sub>2</sub>, and PS<sub>8 </sub>could inhibit growth of <em>R. solanacearum. </em>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.</p>

Aktivitas Bakteri Endofit Asal Padi Lokal Kamba Dalam Menghambat Pertumbuhan Koloni Alternaria Porri Secara in Vitro

“…Mekanisme secara tidak langsung yaitu induksi ketahanan sistemik dengan tanaman inang atau biasa dikenal dengan Induced Systemic Resistance (ISR) (Shang et al, 2021;Jacob et al, 2020;Purnawati et al, 2019). ISR merupakan hubungan atau interaksi bakteri tertentu dengan akar tanaman yang memungkinkan tanaman tersebut mempunyai kemampuan dalam mengembangkan ketahanannya terhadap pathogen.…”