1985•Photochemistry and PhotobiologyRequires access

AN ANALYSIS OF PHOTO‐INDUCED FRUITING IN Coprinus congregatus*

G. Manachère, Y. Bastouill‐Descollonges

Abstract

Abstract— Experiments are described to determine the effect of short irradiations on the initiation and differentiation of sporophore primordia in Coprinus congregatus and on the morphogenesis in darkness of such photo‐induced primordia. Photoinduction is characterized either by development in darkness of etiolated primordia, or by a subthreshold state where no visible primordia are recognizable but where interaction with a subsequent light pulse can be shown. The photo‐induced primordia abort after about 4.5 to 7.5 days in darkness. The photoinduction itself is memorized for a longer period (8.5 to 9.5 days) in darkness.

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Key concepts: Primordium, Darkness, Etiolation, Morphogenesis, Coprinus, Biology, Botany, Biochemistry