Kinetics of stem gravitropism in Coprinus cinereus: determination of presentation time and "dosage-response" relationships using clinostats.
The sensitivity to gravitational stimulation of excised stems of the mushroom fruit body of Coprinus cinereus was determined using clinostat rotation to remove partially-stimulated stems from the normal unidirectional gravitational field. For the strain and conditions tested, the presentation time (the minimum time of stimulation required to elicit a gravitropic reaction) was determined to be 9.6 min. This is the first time the presentation time has been determined for a fungal gravitropic response. Constructional details are given of the clinostats employed in the research and their further use is discussed.
Hatton
J P
JP
Department of Cell and Structural Biology, The University, Manchester, UK.
Moore
D
D
D003302:Coprinus / Q000254:growth & development* / Q000502:physiology; D006112:Gravitation; D018522:Gravitropism / Q000502:physiology*; D007091:Image Processing, Computer-Assisted; D018547:Plant Stems / Q000254:growth & development* / Q000502:physiology; D012399:Rotation; D013997:Time Factors; D018474:Weightlessness Simulation