期刊
ECOLOGICAL ENGINEERING
卷 70, 期 -, 页码 235-240出版社
ELSEVIER
DOI: 10.1016/j.ecoleng.2014.05.029
关键词
Biodegradation; Endosulfan; IAA; Gluconic acid; Formulation
资金
- DST (Department of Science and Technology, Govt of India, New Delhi) [DST/TSG/NTS/2009/67]
The present investigation was carried out with the concept of bioremediation in isolating microbes with the unique capability of utilizing endesulfan for their growth thereby enhancing degradation of the persistant organochlorine pesticide. The fungal and bacterial strain was isolated from rhizosphere soil. Molecular characterization based on 18S rRNA and 16S rRNA gene sequence analysis of JAS12 and JAS8 strains isolated from endesulfan treated soil confirmed its identity as Lasiodiplodia sp. JAS12 and Klebsiella pneumoniae JAS8, respectively. The infrared spectrum of endesulfan degraded sample in the aqueous medium by JAS12 and JAS8 showed bands at 1400 and 1402 cm(-1) respectively which are the characteristics of COOH group. Furthermore, K. pnuemoniae JAS8 strain confirmed plant growth promoting traits which exhibited production of indele-3-acetic acid (IAA), organic acids and solubilization of various sources of inorganic phosphates. The modern agre-techniques necessitate the development of a new formulation where powder ineculants can play a significant role. In the present investigation, low cost solid materials such as sawdust, soil, fly ash, molasses and nutrients were used to achieve greater multiplication and survival of the microbial strains. (C) 2014 Elsevier B.V. All rights reserved.
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