Responses of lignicolous-agaric fruit-bodies to light and gravity: A study to overview the fruit-body development in hymenomycetes
2001
Kaneko, A. (Kyoto Univ. (Japan)) | Sagara, N.
Our previous study revealed that, when exposed to light from below, fruit-bodies of humus-borne agarics grow straight downward both in the 'Coprinus Type' and 'Non-Coprinus Type' species and that, in the latter, gills tilt by gravitropism, caps swell and wave, and stipes twist. The present study revealed that fruit-bodies of some lignicolous agarics also grew straight downward. Among them, Flammulina velutipes and Hypsizygus marmoreus fruit-bodies showed almost the same behaviour as the 'Non-Coprinus Type', but Pleurotus ostreatus (assumed Polyporus Type) fruit-bodies did not show the gill tilting and cap waving. Rather, it redifferentiated to produce new gills or new fruit-bodies, possibly by gravimorphogenesis, or formed spiral stipes. Based on these results, graviresponses in hymenomycetes are overviewed.
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