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Titre :
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Effect of Aphid Infestation on Enzyme Activities in Barley and Wheat
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Auteurs :
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V. Argandona
|
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Type de document :
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article/chapitre/communication
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Année de publication :
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1994
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Format :
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313-315
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Langues:
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= Anglais
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Mots-clés:
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Hordeum
;
Triticum
;
Gramineae
;
Sitobion
;
Glucose-6-Phosphate Dehydrogenase
;
6-Phosphogluconate Dehydrogenase
;
Glutathione Reductase
;
Enzyme
;
Action sur la plante
;
Feuille
;
Racine
;
Mecanisme d'action
;
Sitobion avenae
;
Aphididae
|
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Résumé :
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The activities of three enzymes, glucose-6-phosphate dehydrogenase (G-6-PDH), 6-phosphogluconate dehydrogenase (6-P-GDH) and glutathione reductase (Glut RED) were determined in leaves and roots of barley and wheat non-infested and infested with Sitobion avenae. Glucose-6-P dehydrogenase activity increased 66% in leaves and 16% in roots of plants infested for 3 days, whereas the activity decreased 33 and 50% in roots and leaves respectively after 9 days of infestation. 6-Phospho-gluconate-dehydrogenase activity increased 45% in roots and 12% in leaves of barley infested for 3 days and 33 and 6% for 9 days. Glutathione reductase activity increased 75% in roots and 31% in leaves of barley infested for 3 days and 125 and 32% for 9 days. The activities of G-6-PDH and 6-P-GDH in roots of infested wheat for 9 days decreased 36 and 33%, respectively. Glut RED activity increased 30 and 58% in roots and leaves, respectively.
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Source :
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Phytochemistry, vol. 35, n° 2
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