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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

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 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(9): 3334-3346
DOI: https://doi.org/10.20546/ijcmas.2020.909.415


Isolation, Screening and Characterization of Zinc Solubilizing Microorganisms from Direct Sown Paddy (Oryza sativa L.)  Rhizospheric Soils of Andhra Pradesh
Vinod Babu1*, A. Vijaya Gopal1, N. Trimurtulu1,Kishore Babu2 and B. Sree lakshmi3
1Department of Agricultural Microbiology, Advanced Post Graduate centre,
ANGRAU, Lam, Guntur, India
2Department of Soil Science, 3Department of Plant Pathology, RARS,
ANGRAU, Lam, Guntur, India
*Corresponding author
Abstract:

Rice (Oryza sativa L.) is one of the vital staple food for more than 50 % of the world’s population provided that major source of the food energy. Rice occupies a key role in Indian agriculture contributing to 20 - 25 % of agricultural income. It pays about 43 % of the whole food grain production and about 46 % of the overall cereal production in India (FAO, 2017).In the present study collected twenty (20) direct sown paddy rhizosphere soil samples from four districts of Andhra Pradesh and recorded their geographical position of collected soil samples. From that thirty two (32) Zinc Solubilizing Bacteria (ZnSB) isolated by using zinc phosphate [Zn3(PO4)2] as a insoluble source of zinc in the tris-mineral salts media. Zinc solubilizing isolates coded based on their soil sample collected geographical position, recorded the morphological, cultural characteristics of ZnSB. ZnSB Isolates screened based on their zinc solubilization efficiency both qualitatively and quantitatively. Among all 32 ZnSB isolates Zn KJJ-4 has the high ability to solubilize zinc both qualitatively and quantitatively among the all and lowest was showed by ZnAUU-1. Zn KJJ-4 showed the positive for the starch hydrolysis test, hydrogen sulphide test, catalase test, oxidase test, gelatine liquefaction test, methyl red test, Vogues Proskauer test, citrate utilization test and ammonia production test. ZnKJJ-4 showed the negative for indole production test.


Keywords: Rice (Oryza sativa L.), Rhizosphere, Zinc Solubilizing Bacteria (ZnSB) and Zinc phosphate [Zn3(PO4)2].
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How to cite this article:

Vinod Babu, S., A. Vijaya Gopal, N. Trimurtulu, G. Kishore Babu and Sree Lakshmi, B. 2020. Isolation, Screening and Characterization of Zinc Solubilizing Microorganisms from Direct Sown Paddy (Oryza sativa L.) Rhizospheric Soils of Andhra PradeshInt.J.Curr.Microbiol.App.Sci. 9(9): 3334-3346. doi: https://doi.org/10.20546/ijcmas.2020.909.415