In-Vitro Efficacy of Certain Essential Oils and Plant Extracts against Three Major  Pathogens of Jatropha curcas L.

Purnajyoti Deka Bhuyan; Phatik Tamuli; Paran Boruah

doi:10.4236/ajps.2015.62041

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American Journal of Plant Sciences > Vol.6 No.2, February 2015

In-Vitro Efficacy of Certain Essential Oils and Plant Extracts against Three Major Pathogens of Jatropha curcas L. ()

Purnajyoti Deka Bhuyan¹, Phatik Tamuli^2*, Paran Boruah¹

¹Division of Medicine, India Aromatic and Economic Plants, North East Institute of Science & Technology (CSIR), Jorhat, India.
²Microbiology and Plant Pathology Lab, Department of Botany, Darrang College, Tezpur, India.

DOI: 10.4236/ajps.2015.62041 PDF HTML XML 2,930 Downloads 3,719 Views Citations

Abstract

Antifungal activity of plant extracts and essential oils of six different plant species was tested against three pathogenic fungi, viz., Alternaria alternata, Colletotrichum gloeosporioides and Fusarium moniliforme isolated from Jatropha curcas L. using Poison Food Technique. All the samples tested were found effective in-vitro. More than 60% inhibition of growth of individual fungal species was observed at 100 ppm. Maximum inhibition was observed at concentration of 1000 ppm. However, among the essential oils tested Cinnamomum impressinervium exhibited the strongest activity (80%) in the case of Colletotrichum gloeosporioides and Alternaria alternate and 78.6% in the case of Fusarium oxysporum at concentration of 1000 ppm followed by Cinnamomum tamala, Cymbopogon jwarancusa and Cymbopogon citratus respectively. Among the plant extracts tested, Catharanthus roseus exhibited stronger activity in comparison to Tithonia diversifolia. Inhibition percentage of all the essential oils and plant extracts increased with the increase in concentration.

Keywords

Antifungal Activity, Alternaria alternate, Colletotrichum gloeosporioides, Fusarium moniliforme, Jatropha curcas

Share and Cite:

Bhuyan, P. , Tamuli, P. and Boruah, P. (2015) In-Vitro Efficacy of Certain Essential Oils and Plant Extracts against Three Major Pathogens of Jatropha curcas L.. American Journal of Plant Sciences, 6, 362-365. doi: 10.4236/ajps.2015.62041.

Conflicts of Interest

The authors declare no conflicts of interest.

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