Wirkungsmechanismus von Cyanamid auf den Atmungsstoffwechsel parasitärer Pilze

Amberger, A.

doi:10.1002/jpln.19681190102

Cited by 7 publications

(1 citation statement)

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“…Cyanamide, which is a very potent dormancy breaking agent for grapevines (6,8,16) and other species (11,18), has been shown to inhibit specifically catalase activity both in fungi and in higher plants (1,2). Catalase activity was followed in buds of cyanamide-treated intact vines and in cuttings.…”

Section: Catalase In Grapevine Dormancy Results and Discussionmentioning

confidence: 99%

Changes in the Activity of Catalase (EC 1.11.1.6) in Relation to the Dormancy of Grapevine (Vitis vinifera L.) Buds

Nir¹,

Shulman²,

Fanberstein³

et al. 1986

Plant Physiol.

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Catalase activity in grapevine (Vitis vinifera L.) buds cv. ;Perlette.' increased to a maximum in October and thereafter decreased within 3 months to less than half its maximal rate. The decrease in catalase activity coincided with the decline in temperature during winter. The rate of sprouting of buds forced at 23 degrees C was negatively related to the activity of catalase. Artificial chilling of grapevine canes at 5 degrees C resulted in a 25% decrease of catalase activity in the buds after 3 days and 31% after 17 days. The activity of catalase increased to the control level only 96 hours after removing canes from 5 degrees C to room temperature. Efficient buddormancy breaking agents, such as thiourea and cyanamide decreased catalase activity to 64 and 50% of the controls respectively, while the activity of peroxidase remained the same under those conditions. A less efficient dormancy breaking agent dinitro-ortho-cresol, did not decrease catalase activity.

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