Changes in H2O2 level and H2O2-decomposing enzymes in tomato leaves after infection with fungus

Gajewska, E.; Urbanek, H. . Dept. of Plant Physiology and Biochemistry

Changes in H2O2 level and H2O2-decomposing enzymes in tomato leaves after infection with fungus

1999

Gajewska, E. | Urbanek, H. (Lodz University, (Poland). Dept. of Plant Physiology and Biochemistry)

Changes in hydrogen peroxide level as well as in activities of catalse, ascorbate peroxidase and peroxidase assayed with guaiacol and quercetin were studied after infection of tomato leaves with Botrytis cinerea. The H2O2 content increased significantly 1 day after infection and then it decreased below the control level. At early stage of pathogen invasion the ascorbate peroxidase and catalase activities were slightly lower or remained unchanged. Activities of these enzymes started to increase following the second day after treatment with fungus. Induction of peroxidase oxidizing quercetin was visible as early as 3 hours after inoculation while the activity of peroxidase oxidizing guaiacol started to increase following the second day

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AGROVOC Keywords

antioxidantes antioxidants antioxydant botrytis cinerea catalasa catalase chambre de croissance culture media enzymic activity experimental infection feuille fitotrones growth chambers hojas hortalizas (plantas) hydrogen peroxide leaves lycopersicon esculentum medio de cultivo milieu de culture peroxidases phenolic compounds quercetin quercetina vegetable crops

Bibliographic information

Published in

Zeszyty Problemowe Postepow Nauk Rolniczych (Poland)

Issue 4692 ISSN 0084-5477

Publisher

Zaklad Fizjologii Roslin PAN

Pagination

p. 549-554

Other Subjects

Quercetine; Infeccion experimental; Infection experimentale; Peroxyde d'hydrogene; Activite enzymatique; Compuestos fenolicos; Compose phenolique; Plante legumiere; Peroxido de hidrogeno; Peroxydase; Actividad enzimatica; Peroxidasas

Language

English

Note

Summaries (En, Pl)

2 fig.; 13 ref.

Type

Summary; Conference

Source

Ecophysiological aspects of plant responses to stress factors, Miszalski, Z.Niewiadomska, E.Skoczowski, A. (Eds.).- Warszawa (Poland): Zaklad Fizjologii Roslin PAN, 1999. p. 347-678

Conference

3. International Conference on Ecophysiological Aspects of Plant Responses to Stress Factors, Krakow (Poland), Sep 1999

In AGRIS since: 2001-08-15

Format: AGRIS AP

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Changes in H2O2 level and H2O2-decomposing enzymes in tomato leaves after infection with fungus

1999

AGROVOC Keywords

Bibliographic information