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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 (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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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.2017.6(10): 2825-2831
DOI: https://doi.org/10.20546/ijcmas.2017.610.331


Potentiality of Extracts of Medicinal Plants against Important Plant Pathogenic Bacteria
N. Kiran Kumar1*, V.B. Sanath Kumar1, H.R. Raveendra2 and S.E. Manjunatha
1Dept. of plant pathology, College of Agriculture, V.C. Farm, Mandya, Karnataka, India
2Pathologist, AICRP (Millets) ZARS, V.C. Farm, Mandya, Karnataka, India
3College of Agriculture, V.C. Farm, Mandya, Karnataka, India
*Corresponding author
Abstract:

Bacterial diseases of plants are highly catastrophic and management is difficult. Using of chemicals are hazardous. Hence, an alternate method of control needs to be developed which is effective, cheap and eco-friendly. The water extract from the two botanicals viz., Ocimum gratissimum and Tylophora asthmatica were effective in inhibiting the growth of Ralstonia solanacearum, Xanthomonas axonopodis pv. vignicola and X. campestris pv. Campestris upto 1:1 dilution. At 1:10 dilution water extract of O. gratissimum produced inhibition zones of 22.66, 21.66 and 22.33mm against R. solanacearum, X. axonopodis pv. Vignicola and X. campestris pv. campestris respectively. Of the three bacteria tested, R. solanacearum was found to be more sensitive to O. gratissimum followed by X. campestris pv. campestris whereas, in cases of T. asthmatica, X. campestris pv. campestris was more sensitive followed by X. axonopodis pv. vignicola and R. solanacearum. Alcohol extract of O. gratissimum was effective against all the three bacteria tested upto 1:100 dilution, whereas, O. sanctum and T. asthmatica were effective upto 1:10 dilution. Ruta graveolens was effective upto 1:1 dilution against the three bacteria. In majority of cases X. campestris pv. campestris was most sensitive to the alcohol extracts followed by X. axonopodis pv. vignicola and R. solanacearum indicating that with the dilution of extract the inhibitory activity was lost.


Keywords: Medicinal plants, Ralstonia solanacearum, Xanthomonas axonopodis pv. Vignicola, Inhibition zone.
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How to cite this article:

Kiran Kumar, N., V.B. Sanath Kumar, H.R. Raveendra and Manjunatha, S.E. 2017. Potentiality of Extracts of Medicinal Plants against Important Plant Pathogenic Bacteria.Int.J.Curr.Microbiol.App.Sci. 6(10): 2825-2831. doi: https://doi.org/10.20546/ijcmas.2017.610.331