Antifungal activity of 2-hydroxy-4-methoxybenzaldehyde isolated from Decalepis hamiltonii [Wight and Arn.] on seed-borne fungi causing biodeterioration of paddy

• Autorzy: Mohana D C , Satish S. , Raveesha K.A.

Warianty tytułu

PL

Aktywnosc przeciwgrzybowa 2-hydroxy-4-methoxybenzaldehydu wyosobnionego z Decalepis hamiltonii [Wight and Arn.] przeciwko grzybom przenoszonym przez nasiona i powodujacym biodegradacje nasion ryzu

• Języki publikacji: EN

Abstrakty

EN

In vitro antifungal activity assay of different concentrations of 2-hydroxy-4-methoxybenzaldehyde isolated from Decalepis hamiltonii against six important seed-borne fungal pathogens viz., Alternaria alternata, Drechslera tetramera, Fusarium oxysporum, F. proliferatum, Pyricularia oryzae and Trichoconis padwickii isolated from paddy seeds revealed that, the compound 2-hydroxy-4-methoxybenzaldehyde showed significant antifungal activity. Among the fungi tested, F. proliferatum showed highest inhibitory activity, whereas P. oryzae showed least inhibitory activity. The minimal inhibitory concentration (MIC) varied between 350 μg/ml and 650 μg/ml depending on the fungal species. Comparative evaluation of the active compound with the synthetic fungicide thiram at recommended dosage revealed that, the antifungal activity of the active compound obtained from the plant was almost equivalent. Evaluation for nutritional parameters and dry matter losses (DML) revealed that, total carbohydrates, water soluble proteins, lipids and dry matter losses were significantly confined in 2-hydroxy-4-methoxybenzaldehyde treated paddy seeds compared with control seeds. This plant being an edible one can be exploited in the management of seed-borne pathogenic fungi and in the prevention of biodeterioration of grains and mycotoxin production during storage in an eco-friendly way.

PL

Badania przeciwgrzybowej aktywności 2-hydroxy-4-methoxybenzaldehydu wyosobnionego z Decalepis hamiltonii przeciwko sześciu ważnym, przenoszonym przez nasiona grzybom patogenicznym, w tym: Alternaria alternata, Drechslera tetramera, Fusarium oxysporum, F. proliferatum, Pyricularia oryzae i Trichoconis padwickii, które zostały wyizolowane z ryżu wykazały, że związek ten ma znaczącą aktywność przeciwgrzybową. Spośród badanych grzybów najwyższą aktywność przeciwgrzybową wykazał F. proliferatum, natomiast najniższą P. oryzae. Minimalne stężenie tego związku, inhibitujące grzyby, wahało się pomiędzy 350 ug/ml i 650 ug/ml, zależnie od rodzaju grzyba. Porównawcza ocena aktywnego związku z syntetycznym fungicydem thiaram użytym w zalecanej dawce wykazała, że przeciwgrzybowa aktywność związku uzyskanego z rośliny była prawie taka sama, jak aktywność thiaramu. Stwierdzono, że straty węglowodanów ogółem, białek rozpuszczalnych w wodzie, lipidów i suchej masy w nasionach ryżu potraktowanych 2-hydroxy-4-methoxybenzaldehydem były znacznie ograniczane przez ten związek, w porównaniu do nie traktowanych nasion kontrolnych. Ta jadalna roślina w sposób przyjazny dla środowiska może być wykorzystana do ograniczania patogenów przenoszonych przez nasiona, degradacji nasion oraz wytwarzania mykotoksyn podczas przechowywania.

Słowa kluczowe

PL

antifungal activity; 2-hydroxy-4-methoxybenzaldehyde; isolation; Decalepis hamiltonii; seed-borne fungi; seed treatment; biodeterioration; paddy seed

• Wydawca: -
• Czasopismo: Journal of Plant Protection Research
• Rocznik: 2009
• Tom: 49
• Numer: 3
• Opis fizyczny: p.250-256,fig.,ref.

Twórcy

autor

Mohana D C

• University of Mysore, Manasagangotri, Mysore, India

autor

Satish S.

autor

Raveesha K.A.

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