Phosphate Solubilizing Bacteria Adaptive to Vinasse

• Main Authors: Kahar Muzakhar, Sutoyo, Ahmad Bukhari Saragih
• Format: Article
• Language: English
• Published: ITB Journal Publisher 2015-06-01
• Series: Journal of Mathematical and Fundamental Sciences
• Subjects: bacillus; biofertilizer; Gram negative; PSB; vinasse
• Online Access: http://journals.itb.ac.id/index.php/jmfs/article/view/1400

Microorganisms identified as phosphate solubilizing bacteria (PSB) adaptive to vinasse were successfully screened from sugarcane soil from an agriculatural estate in Jatiroto. By conducting a screening on Pikovskaya’s agar medium (PAM), we found that five different isolates were detected as PSB (pvk-5a, pvk-5b, pvk-6b, pvk-7a, and pvk-8a). Of the five isolates only three could be grown and were found to be adaptive to vinasse based medium without any nutrients added (pvk-5a, pvk-5b and pvk-7a). The three isolates were characterized as coccus and Gram negative with no endospores detected. We suggest that these three isolates can be used as biofertilizer agent to support organic farming.