Abstract In the study,Pseudomonas sp. K6 and Pseudomonas monteilii were found to form an enhanced biofilm when cultured in the presence of organic acids and sugars. Here, the highest biofilm could be observed for Pseudomonas sp. K6 (3.08 ± 0.13) and P. monteilii (1.99 ± 0.12) when cultured in presence of 10 µM malic acid. However, maximum production of indole 3 acetic acid (IAA) was observed with 25 µM succinic acid treatment for Pseudomonas sp. K6 (24.33 ± 0.57 µg ml−1) and with 25 µM galactose for P. monteilii (20 ± 0.0 µg ml−1). At the same time, Pseudomonas sp. K6 solubilized the highest quantity of phosphate in the presence of 50 µM citric acid (21.33 ± 0.0 µM) and P. monteilii was observed to produce 32.66 ± 1.25 µM soluble phosphate in the presence of 10 µM galactose. The results of the study demonstrate the role of organic acids and sugars in the enhancement of biofilm formation, IAA production and phosphate solubilization in selected Pseudomonas spp. and highlight the potential use of rhizobacteria in conjugation with supplement for the agricultural applications.

中文翻译：

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有机酸和糖对根际细菌生物膜和植物生长促进性状的增强

摘要 在研究中，假单胞菌属。在有机酸和糖的存在下培养时，发现 K6 和 Pseudomonas monteilii 会形成增强的生物膜。在这里，可以观察到假单胞菌的最高生物膜。在 10 µM 苹果酸存在下培养时，K6 (3.08 ± 0.13) 和 P. monteilii (1.99 ± 0.12)。然而，用 25 µM 琥珀酸处理假单胞菌时观察到吲哚 3 乙酸 (IAA) 的最大产量。K6 (24.33 ± 0.57 µg ml-1) 和 25 µM 半乳糖用于 P. monteilii (20 ± 0.0 µg ml-1)。同时，假单胞菌属。在 50 µM 柠檬酸 (21.33 ± 0.0 µM) 存在下，K6 溶解了最高量的磷酸盐，观察到 P. monteilii 在 10 µM 半乳糖存在下产生 32.66 ± 1.25 µM 可溶性磷酸盐。研究结果证明了有机酸和糖在增强所选假单胞菌的生物膜形成、IAA 产生和磷酸盐溶解方面的作用。并强调根际细菌在农业应用中与补充剂结合的潜在用途。