Potential of the Endophytic Bacteria from Lantana camara, Palm Oil, and Mangroves to control Meloidogyne spp. on Eggplant

Potential of the Endophytic Bacteria from Lantana camara, Palm Oil, and Mangroves to control Meloidogyne spp. on Eggplant Root knot nematodes Meloidogyne spp. is one of the important pathogens in eggplant. Root gall is very detrimental disease that can cause production reduces. This study aims to obtain endophytic bacteria from Lantana camara and evaluate them together with endophytic bacteria from oil palm roots and mangroves which have the potential to control Meloidogyne spp. and determine its effect on eggplant growth, as well as identify potential endophytic bacteria as biological control agents. The biological control agents’ potency was referred to screening results such as mortality test, volatile organic compound (SOV) and suppress test on root gall was evaluated by measuring percentage of gall reduction, root damage scale and egg package. The results showed that all endophytic bacteria isolates had the potential to mortality of Meloidogyne spp. and produce SOV as well as can suppressing the percentage of gall reduction in eggplant root and have effect to the weight and height of the plant. Isolates LCA5 and LCA13 had the potential to mortality of Meloidogyne spp. above 90% during 24 hours, and the SOV test causes mortality above 60% for 24 hours. Endophytic bacteria that have potential as biological control were identified as Dyella marensis, Stenotrophomonas rhizophilla, and Providencia vermicola.Nematoda puru akar (NPA) Meloidogyne spp. merupakan salah satu patogen penting pada tanaman terung. Puru akar sangat merugikan karena menurunkan hasil produksi. Penelitian ini bertujuan mendapatkan bakteri endofit dari Lantana camara dan  mengevaluasinya bersama bakteri endofit dari akar kelapa sawit, dan mangrove yang berpotensi untuk mengendalikan Meloidogyne spp. dan menentukan pengaruhnya pada pertumbuhan tanaman terung, serta mengidentifikasi bakteri endofit yang potensial sebagai agens pengendalian hayati. Potensi agens hayati mengacu pada hasil pengujian uji mortalitas, uji senyawa organik volatil (SOV) dan uji penekanan puru akar dievaluasi dengan mengukur persentase penurunan jumlah puru, kerusakan akar, dan jumlah paket telur. Hasil uji menunjukkan seluruh isolat bakteri endofit berpotensi menyebabkan mortalitas, menghasilkan SOV, dan dapat menekan persentase jumlah puru pada akar, serta memberikan pengaruh terhadap bobot dan tinggi tanaman. Bakteri endofit LCA5 dan LCA13 menyebabkan mortalitas lebih dari 90% terhadap Meloidogyne spp. J2. Selama 24 jam dan pada uji SOV menyebabkan mortalitas lebih dari 60% selama 24 jam. Bakteri endofit yang memiliki potensi sebagai pengendalian hayati diidentifikasi sebagai Dyella marensis, Stenotrophomonas rhizophilla, dan Providencia vermicola