Potensi Metabolik Komunitas Bakteri Endofit dan Rhizosfer Ubi Jalar (Ipomoea batatas L.) Berdasarkan Analisis Community-Level Physiological Profiles (CLPP)

Abstract

Acterial Community CLPP Ipomoea batatas Endophytes Rhizosphere Total metabolic activity of endophytic and rhizosphere of bacterial community of sweet potato was measured to compare the community-level physiological profiles (CLPP) using by Biolog Ecoplates. Result of our study revealed that bacterial density increased in the following order: endophytes < rhizosphere. The microbial diversity assessed by species richness, the total number of species present and species evenness. The highest total microbial activity was observed for the rhizosphere. The CLPP revealed that the bacteria could differentially utilize all the groups of carbon sources as follows carbohydrate, amino acid, carboxilyc acid, polymer, amine/amide, and phenolic compound. Carbohydrate was most utilized.