Nautiyal C S, Bhadauria S, Kumar P, Lal H, Mondal R, Verma D
Microbiology Group, National Botanical Research Institute, Rana Pratap Marg, P.O. Box 436, Lucknow, India.
FEMS Microbiol Lett. 2000 Jan 15;182(2):291-6. doi: 10.1111/j.1574-6968.2000.tb08910.x.
Phosphate solubilizing bacteria NBRI0603, NBRI2601, NBRI3246 and NBRI4003 were isolated from the rhizosphere of chickpea and alkaline soils. All four strains demonstrated diverse levels of phosphate solubilization activity under in vitro conditions in the presence of various carbon and nitrogen sources. Acid production may have contributed to phosphate solubilization, but was not the only reason for phosphate release into the medium. Among the four strains, NBRI2601 was the most efficient strain in terms of its capability to solubilize phosphorus in the presence of 10% salt, pH 12, or 45 degrees C. The strains showed varied levels of phosphate solubilization when the effects of different sources of nitrogen were examined during growth. The presence of low levels of Ca(2+) and EDTA in the medium enhanced phosphate solubilization.
解磷细菌NBRI0603、NBRI2601、NBRI3246和NBRI4003是从鹰嘴豆根际和碱性土壤中分离出来的。在体外条件下，在存在各种碳源和氮源的情况下，所有这四株菌株都表现出不同水平的解磷活性。产酸可能有助于磷的溶解，但不是磷释放到培养基中的唯一原因。在这四株菌株中，就其在10%盐、pH 12或45℃条件下溶解磷的能力而言，NBRI2601是最有效的菌株。在生长过程中检测不同氮源的影响时，这些菌株表现出不同水平的磷溶解情况。培养基中低水平的Ca(2+)和EDTA的存在增强了磷的溶解。
