Unun Triasih, Abdul Latief Abadi, Luqman Qurata Aini, Mintarto Martosudiro, Farida Yulianti, Saptini Mukti Rahajeng, Nur Hayati Hadiba, Titiek Yulianti, Dita Agisimanto
Plants naturally utilize associated microbes to perform a variety of beneficial functions, including nutrient acquisition. Identifying a consortia of different beneficial microbes that live in harmony with a native ecosystem or living plant is necessary for application in agriculture. The objective of this research was to identify beneficial bacteria for growth promotion in local lettuce and use them in lettuce cultivation in a hydroponic nutrient film technique (NFT) system. Explants of roots (A), stems (B), and leaves (D) from local lettuce were physiologically, genetically, and morphologically identified and utilized in Archivel lettuce production. Indigenous bacteria isolated from local lettuce are capable of IAA production (IPB), nitrogen fixation (NFB) and phosphate solubilization (PSB) and are genetically similar to Marinobacter salsughinis strains 43SY, Delftia acidovorans 11, Brucella rhizosphaerae PB1_7, Stenotrophomonas geniculata 1285, Delftia acidovorans strain 19MWFB29, the uncultured bacterium clone 18447 and the uncultured bacterium clone WBB5. Marinobacter salsughinis strain 43SY, Delftia acidovorans 11, and Brucella rhizosphaerae PB1_7 enhanced the biological freshness, pigmentation, and photosynthate accumulation of Archivel lettuce cultivated in the NFT hydroponic system. These strains have great potential for use in lettuce production and agricultural applications through organic hydroponics. © 2025, Federal University of Lavras. All rights reserved.
Universitas Brawijaya, Faculty of Agriculture, Department of Plant Pest and Disease, East Java, Malang, Indonesia; Research Organization for Agriculture and Food, National Research and Innovation Agency/BRIN, West Java, Bogor, Indonesia; Ministry of Agriculture, Agricultural Training Center, East Java, Malang, Indonesia; Filant Corp Research Center, East Java, Indonesia
