Study of the Gametophytic phase of "Diplazium caudatum" (Athyriaceae, Polypodiopsida) from Spain
- Martín Alonso, David 1
- Molino de Miguel, Sonia 1
- Seral, Andrea 1
- Gabriel y Galán, José María 1
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1
Universidad Complutense de Madrid
info
ISSN: 0214-4565
Année de publication: 2021
Número: 45
Pages: 82-90
Type: Article
D'autres publications dans: Botanica complutensis
Résumé
The gametophytes of the Athyriaceae are not very well known, such as Diplazium caudatum. The aim of this work is to analyze the gametophytic phase of this species, which includes germination study, morphological development and reproductive phase. Spores belonging to two different sporophytes from La Gomera, Spain, were mixed and sown in multisporic cultures. Plates have been cultured in chambers with nutritive agar at 25ºC and 12 hours photoperiod. The germination was registered every three days, and the main vegetative and reproductive development was checked throughout the observational period. The germination rate reached a maximum of 58%. The spore germination followed a Vittaria pattern meanwhile prothallial development followed an Adiantum type. Regarding sexual expression, all gametophytes developed archegonia and later some of them developed antheridia becoming bisexual.
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