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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
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(10): 531-545
DOI: https://doi.org/10.20546/ijcmas.2019.810.058


Antifungal Activity of Important Botanicals against Plant Pathogens
Sakshi Bhagat, Upma Dutta* and Tanika Mahajan
Division of Microbiology, Faculty of Basic Sciences, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu
*Corresponding author
Abstract:

Medicinal plants are store house of remedies to cure all ailments of mankind. The use of plants as medicine is widespread throughout the world. The secondary metabolities present in the plants showed various biological activities and act in plant defence mechanism. Various pathogenic organisms such as bacteria, fungi, viruses attack plants at various stages of their development and thereby reduce their yield and productivity. Among all the pathogenic organisms, phytopathogenic fungi cause severe losses in plants and crop-production. However, these fungal diseases can be managed by the use of synthetic fungicides but due to the overzealous and indiscriminate use of these synthetic fungicides, has created different types of environmental and toxicological problems. Therefore, natural products symbolize safety in contrast to the synthetics as they have eco-friendly approach and are cheap. In the present investigation, the methanol and aqueous extracts of leaves as well as rhizome of three different medicinal plants viz. Azadirachta indica, Lantana camara and Curcuma longa were used against five fungal phytopathogens viz. Curvularia lunata, Bipolaris specifera, Rhizoctonia solani, Macrophomina phaseolina and Alternaria alternata by agar well diffusion method. Methanolic extracts of plant parts showed maximum antifungal activity against the phytopathogens than the aqueous extract. Curcuma longa rhizome extract showed antifungal activity against all the plant pathogens and maximum zone of inhibition was showed at conc. 200µl/ml against Rhizoctonia solani, Bipolaris specifera, Curvularia lunata and Macrophomina phaseolina (11mm, 7.66mm, 8mm and 7mm respectively), followed by leaf extract of Curcuma longa and Azadirachta indica. The minimum activity was showed by Lantana camara. Phytochemical screening of plant extracts revealed that the maximum phytoconstituents (Saponin, steroid, alkaloid, Flavonoid, carbohydrate, tannin, anthocyanin) is present in methanolic extracts than the aqueous extract. Hence, it was concluded that methanolic extract possess sufficient antifungal activity under controlled conditions to warrant a further investigation under field conditions.


Keywords: Medicinal plants, Sequential extraction, Antifungal activity, Agar-well diffusion
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How to cite this article:

Sakshi Bhagat, Upma Dutta and Tanika Mahajan. 2019. Antifungal Activity of Important Botanicals against Plant Pathogens.Int.J.Curr.Microbiol.App.Sci. 8(10): 531-545. doi: https://doi.org/10.20546/ijcmas.2019.810.058