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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 (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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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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(5): 256-265
DOI: https://doi.org/10.20546/ijcmas.2017.605.029


Evaluation of Organic Acid Producing Aspergillus niger Isolates for the Management of Fusarium Wilt of Chickpea
Swati Nayak and Vibha*
Department of Plant Pathology, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur 482 004, Madhya Pradesh, India
*Corresponding author
Abstract:

The soil-borne necrotrophic fungal pathogen Fusarium oxysporum f. sp. Ciceris (FOC)infects chickpeaand causes wilt in any stage of plant from seedling to podding. Owing to climate change and ever changing nature of the pathogen, no resistant host cultivar is sustaining long against this disease. Hence, root resident Aspergillus niger isolates as native mycoflora were evaluated as bioagent against the FOC because chemical control has long been discouraged due to its circulation in food chain. In this study, we established the biocontrol potential of organic acid producing A. niger isolates under in-vitro and in-vivo conditions. All the isolates produced tryptophan, one proline, three histidine and nine hyproline and valine. The isolate1 was highly inhibitory towards the FOC under poison food technique while isolate9 was highly suppressive towards the pathogen under dual culture method. The maximum wilt reduction was recorded with isolate3 treatment that also helped the plant to retain maximum relative water content in leaves, besides maintaining higher chlorophyll content. From the results, it can be concluded that the response of bioagents under in-vitro conditions can vary under in-vivo conditions depending upon the inherent metabolite producing ability of the bioagent. This study also provides a basic knowledge about the organic acid producing A. niger isolates and their probable role in wilt management in chick pea.


Keywords: Fungal isolates, Fusarium wilt, Organic acids, Physiological parameters and Disease incidence
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How to cite this article:

Swati Nayak and Vibha. 2017. Evaluation of Organic Acid Producing Aspergillus niger Isolates for the Management of Fusarium Wilt of ChickpeaInt.J.Curr.Microbiol.App.Sci. 6(5): 256-265. doi: https://doi.org/10.20546/ijcmas.2017.605.029