Comparative development of the sporophyte-gametophyte junction in six moss species.
J Plant Res
; 123(6): 777-87, 2010 Nov.
Article
en En
| MEDLINE
| ID: mdl-20401625
ABSTRACT
Developmental anatomy of the sporophyte-gametophyte junction in six moss species is described with special reference to sporophyte penetration into the gametophytic tissue. The sporophyte-gametophyte junction in mosses is classified into two types based on vaginula morphology in the "true vaginula" type, the junction involves only an epigonium derived from the archegonium, and in the other "shoot vaginula" type, it involves a shoot and an epigonium. In both of the types, the sporophyte penetrates into an epigonial tissue accompanied by degeneration of epigonium cells under the developing sporophyte. In the "shoot vaginula" type, the sporophyte further penetrates into the conducting strand or similar cells that seem to be induced by stimulation of fertilization. It is likely that the difference in growth rate between the epigonium and the capped sporophyte is a mechanical force for sporophyte penetration.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Esporas
/
Briófitas
/
Células Germinativas de las Plantas
Idioma:
En
Revista:
J Plant Res
Asunto de la revista:
BOTANICA
Año:
2010
Tipo del documento:
Article
País de afiliación:
Japón