Gametófitos de Pleurosorus papaverifolius (Kunze) Fée (Aspleniaceae) y Cheilanthes glauca (Cav.) Mett. (Pteridaceae), dos helechos rupícolas sudamericanos

@article{Galn2009GametfitosDP,
  title={Gamet{\'o}fitos de Pleurosorus papaverifolius (Kunze) F{\'e}e (Aspleniaceae) y Cheilanthes glauca (Cav.) Mett. (Pteridaceae), dos helechos rup{\'i}colas sudamericanos},
  author={Jos{\'e} Mar{\'i}a Gal{\'a}n and Carmen Prada},
  journal={Acta Botanica Brasilica},
  year={2009},
  volume={23},
  pages={805-811}
}
En este trabajo se estudia la germinacion de la espora, el desarrollo morfologico de los gametofitos y la expresion sexual de dos pteridofitos sudamericanos rupicolas: Pleurosorus papaverifolius (Kunze) Fee. y Cheilanthes glauca (Cav.) Mett. Las esporas mostraron una germinacion vigorosa, y se alcanzaron porcentajes relativamente altos de germinacion (>70%) en menos de tres semanas. Pleurosorus papaverifolius desarrollo una fase filamentosa de lento crecimiento, con celulas gruesas e hinchadas… 

Farina Production by Gametophytes of Argyrochosma nivea (Poir.) Windham (Pteridaceae) and its Implications for Cheilanthoid Phylogeny

This work provides the first account of farina production in the gametophyte of a non-notholaenoid: two accessions of Argyrochosma nivea from different geographical localities were found to have farina on theirgametophytes, suggesting that this gamETophytic character is not a synapomorphy for the notholaenoids, and may have had several independent evolutionary origins.

Comparative study on the gametophyte morphology and development of three paramo species of Jamesonia (Pteridaceae, Polypodiopsida)

The sexual phase of three species of Jamesonia has been studied, from spore germination to gametangia formation, with special attention to the morphological development of prothalli, the first work to deal with gametophytes of species in this genus.

Gametophyte of the Andean Fern Cheilanthes pilosa Goldm. (Pteridaceae)

Although outbreeding is possible, this species seemed to be promoting intragametophytic selfing as the major reproductive strategy.

Gametophyte development and reproduction of Argyrochosma nivea (Pteridaceae)

The production of farina in the sporophyte but not in the gametophyte could help to support the idea of the segregation of this species from its traditional location in Notholaena to Argyrochosma, as farinosegametophytes seem to be a synapomorphy of the notholenoids.

Gametophyte development and reproduction of Argyrochosma nivea (Pteridaceae)

The production of farina in the sporophyte but not in the gametophyte could help to support the idea of the segregation of this species from its traditional location in Notholaena to Argyrochosma, as farinosegametophytes seem to be a synapomorphy of the notholenoids.

Effect of temperature and dark pretreatment on the germination of three species of Jamesonia (Pteridaceae, Polypodiopsida)

The results indicated that germination of Jamesonia, considering the three species as a whole, is affected by temperature, but is independent of the dark treatment, which could suggest that spore germination in Jamesonia is adapted to establish gametophyte populations during frost-free periods.

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