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Home > Molecular and Biochemical Basis of Onion Basal Rot Management by Trichoderma Spp. and Sisymbrium Irio L.

Molecular and Biochemical Basis of Onion Basal Rot Management by Trichoderma Spp. and Sisymbrium Irio L.

Thesis Info

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Author

Roma Akhtar

Program

PhD

Institute

University of the Punjab

City

Lahore

Province

Punjab

Country

Pakistan

Thesis Completing Year

2019

Thesis Completion Status

Completed

Subject

Plant Pathology

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/11947/1/Roma%20Akhtar%20plant%20pathology%202019%20uop%20lhr%20prr.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726672378

Similar


The present study was undertaken to find out the antifungal constituents of ethyl acetate soluble fraction of methanolic leaf extract of London rocket weed (Sisymbrium irio L.). To achieve this objective, methanolic leaf extract was partitioned using various organic solvents including ethyl acetate. Different concentrations of ethyl acetate fraction were prepared which ranged from 1.562 to 200 mg mL-1, and evaluated against Fusarium oxysporum f. sp. cepae isolated from diseased onion. A significant reduction in fungal biomass of 77–93% was recorded due to different concentrations of this fraction. GC-MS analysis revealed the presence of 7 constituents in the fraction. Among these 1,3-Cyclopentadiene, 5-(1-methylethyllidene) (26.31%) and Di-n-octyl phthalate (26.28%) were the most abundant followed by Acetic Acid, butyl ester (11.67%) and γ-Sitosterol (11.64%). Presence of these compounds may be responsible for antifungal behavior of this fraction against the pathogen of basal rot disease of onion.
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