Gametophytic phase of the Indonesian ferns "Amblovenatum immersum" (Blume) Mazumdar and "Christella subpubescens" (Blume) Holttum (Thelypteridaceae)

  1. Ruano, Sofía 1
  2. Seral, Andrea 1
  3. Vázquez, Rubén 1
  4. Molino, Sonia 1
  5. Gabriel y Galán, José María 1
  1. 1 Universidad Complutense de Madrid
    info

    Universidad Complutense de Madrid

    Madrid, España

    ROR 02p0gd045

Journal:
Botanica complutensis

ISSN: 0214-4565

Year of publication: 2021

Issue: 45

Pages: 228-235

Type: Article

DOI: 10.5209/BOCM.73379 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Botanica complutensis

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Abstract

The gametophytic generation of Amblovenatum immersum and Christella subpubescens (Thelypteridaceae), including spore germination, morphological development of the gametophytes, major vegetative features and reproduction strategies, was studied. For both species, the spore germination was of the Vittaria type and the developmental pattern was of the Drynaria type. Adult gametophytes were cordate and hairy, with unicellular and secretory hairs located in the margins and both the ventral and dorsal surfaces of the prothalli. C. subpubescens has another type of acicular hairs only in the margin of the prothallus. Gametangia were of the normal type described for leptosporangiate ferns. In A. immersum all the gametophytes were female. In C. subpubescens the gametophytes produced at first instance female gametangia and then became bisexual with time. Antheridiogen activity was observed in both species, suggested by the presence of small young ameristic gametophytes with antheridia surrounding well-developed female ones.

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Funding information

This work was part of the collaboration fellowship granted by the Universidad Complutense de Madrid. Thanks to my mentor Jose Maria Gabriel y Galán for the help given for the realization of it and the knowledge transmitted, we will always remember you.

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Data source: Dialnet