Responses of lignicolous-agaric fruit-bodies to light and gravity: A study to overview the fruit-body development in hymenomycetes |
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Authors: | Ai Kaneko Naohiko Sagara |
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Institution: | (1) Life Web, Graduate School of Human and Environmental Studies, Kyoto University, 606-8501 Kyoto, Japan |
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Abstract: | 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 themFlammulina velutipes andHypsizygus marmoreus fruit-bodies showed almost the same behaviour as the ‘Non-Coprinus Type’, butPleurotus ostreatus (assumedPolyporus 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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Keywords: | Flammulina velutipes Hypsizygus marmoreus morphogenesis phototropism Pleurotus ostreatus |
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