1971
DOI: 10.1016/0048-4059(71)90050-6
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Peroxidase and ethylene production by barley leaves infected with Erysiphe graminis f. sp. hordei

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1973
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Cited by 39 publications
(20 citation statements)
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“…In protocorms of both Cymbidium and Dactylorhiza purpurella, increase in peroxidase activity occurred before the other effects. This parallels the situation in a number of host/ pathogen relationships where increase in peroxidase activity occurs at an early stage following infection and prior to symptom development (Hislop and Stahmann, 1971;Stahmann and Demorest, 1973). It is therefore likely that at least part ofthe increase in oxygen uptake follows as a consequence of enhanced oxidase enzyme activity.…”
Section: Discussionmentioning
confidence: 81%
“…In protocorms of both Cymbidium and Dactylorhiza purpurella, increase in peroxidase activity occurred before the other effects. This parallels the situation in a number of host/ pathogen relationships where increase in peroxidase activity occurs at an early stage following infection and prior to symptom development (Hislop and Stahmann, 1971;Stahmann and Demorest, 1973). It is therefore likely that at least part ofthe increase in oxygen uptake follows as a consequence of enhanced oxidase enzyme activity.…”
Section: Discussionmentioning
confidence: 81%
“…It has been known that an increased synthesis of a large variety of proteins 6 to 18 hr after inoculation is one ofthe first expressions ofthe host resistance response induced by microbial metabolites (8,13 In most cases ethylene at the concentrations used had no effect on peroxidase activity either in healthy or diseased corn tissues, thus resembling in this respect previously investigated tobacco leaves and carrot roots (5,7). Within Graminaceae, C2H4 has been shown to enhance the enzyme in wheat (10) and to have no effect on it in barley leaves (16). In previous studies on pea varieties (9), the increase in peroxidase activity induced by C2H4 at 80,/l/ seemed to be due to its toxic action.…”
Section: Discussionmentioning
confidence: 89%
“…All these enzymes were claimed by RUBIN and ARGICHOVS-KAJA (1967) to increase significantly during the nccrotic-type defence reaction of the host plant. FRIC (1969), HISLOP and STAHMANN (1971) working with susceptible and resistant barley plants against Erysiphe graminis DC ex Merat f. sp. hordei Em.…”
Section: Discussionmentioning
confidence: 99%