Influence of gravity on spatial orientation and morphogenesis of moss sporophytes

During the growth and development of the sporophytic capsules of some moss species, negative gravitropism is changed for a positive one. Horizontal clinostat rotation induced unregulated growth of the sporophytes and their twisting; some of sporophytes remained straight, however. It has been establi...

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Bibliographic Details
Published in:Advances in space research 1998-01, Vol.21 (8), p.1141-1144
Main Authors: Lobachevska, O.V., Demkiv, O.T., Ripetskyj, R.T.
Format: Article
Language:English
Subjects:
Bryopsida - drug effects
Bryopsida - growth & development
Gibberellins - pharmacology
Gravitation
Gravitropism - drug effects
Gravitropism - physiology
Plant Growth Regulators - pharmacology
Plastids - physiology
Rotation
Space life sciences
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Summary:During the growth and development of the sporophytic capsules of some moss species, negative gravitropism is changed for a positive one. Horizontal clinostat rotation induced unregulated growth of the sporophytes and their twisting; some of sporophytes remained straight, however. It has been established that the change of the gravitropic reaction is related to capsule formation and to the redistribution of amyloplast cells of the sporophyte graviperception zone.
ISSN:0273-1177
1879-1948
DOI:10.1016/S0273-1177(97)00207-X