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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(10): 626-633
DOI: https://doi.org/10.20546/ijcmas.2018.710.070


Organic Acids Production by Zinc Solubilizing Bacterial Isolates
D.N. Vidyashree1, R. Muthuraju1*, P. Panneerselvam2 and Debasis Mitra2
1University of Agricultural Sciences, GKVK, Bengaluru, Karnataka 560 065, India
2Crop Production Division, ICAR - National Rice Research Institute, Cuttack, Odisha 753 006, India
*Corresponding author
Abstract:

Zinc (Zn) is the most effective micronutrient and Zn solubilization is triggered by the production of organic acids for the optimum growth of plants. An investigation was carried out on organic acid production profiling during zinc solubilization by zinc solubilizing bacterial (ZSB) strains (B. aryabhattai, Pseudomonas taiwenensis and Bacillus sp. PAN-TM1) which were obtained from the Culture Collection Centre, Microbiology Laboratory, SSAC, ICAR-IIHR, Bengaluru, India. Eleven organic acids profile was estimated by HPLC in different zinc sources viz., zinc oxide (ZnO), zinc carbonate (ZnCO3) and zinc phosphate [Zn3(PO4)2] by the three ZSB isolates which revealed that lactic acid (9128µg.ml-1, in ZnCO3-15days), malonic acid [9456µg.ml-1, in Zn3(PO4)2-10days], malic acid (6949µg.ml-1, in Zn3(PO4)2-10days), citric acid [8887µg.ml-1, in Zn3(PO4)2-5days] and succinic acid [9005µg.ml-1, in ZnCO3-10days] are the major organic acids produced by the isolates used in the study. Among the ZSB strain, B. aryabhattai produced all most all the organic acids during zinc solubilization as compared to P. taiwenensis and Bacillus sp. PAN-TM1. The above findings clearly indicated that the organic acids secretions by Bacillus and Pseudomonas will vary depend on the substrate of Zn minerals.


Keywords: ZSB, B. aryabhattai, Organic acids, HPLC
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How to cite this article:

Vidyashree, D.N., R. Muthuraju, P. Panneerselvam and Debasis Mitra. 2018. Organic Acids Production by Zinc Solubilizing Bacterial Isolates.Int.J.Curr.Microbiol.App.Sci. 7(10): 626-633. doi: https://doi.org/10.20546/ijcmas.2018.710.070