Gametófito de Doryopteris triphylla (Pteridaceae, Polypodiopsida)

  1. Seral, Andrea 1
  2. Gabriel y Galán, José María 1
  1. 1 Department of Plan Sciencies (Botany), Faculty of Biology, Universidad Complutense de Madrid, Avda. José Antonio Nováis 12. 28040- Madrid (Spain)
Journal:
Botanica complutensis

ISSN: 0214-4565

Year of publication: 2016

Issue: 40

Pages: 63-70

Type: Article

DOI: 10.5209/BOCM.53200 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Botanica complutensis

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Abstract

Gametophytes of the Pteridaceae are moderately well known but there is still a quite large set of species to describe. Among these is Doryopteris triphylla, a member of the cheilanthoid clade (subgroup hemionitids). The main objective of this work is to describe the gametophyte of D. triphylla. In vitro cultures were prepared with spores coming from various sporophytes of different locations. In vivo observations were done periodically to monitor developmental critical events and reproductive activity. Germination followed the Vittaria pattern and the developmental processes adjusted to the Adiantum type. Adult cordate gametophytes produced normal sexual organs in unisexual prothalli. Doryopteris triphylla gametophytes exhibited somewhat peculiar features: the apical cell divided longitudinally, the first meristematic cell was rectangular, and archegoniate prothalli appeared much before than antheridiate ones.

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Funding information

The Universidad Complutense de Madrid partially funded this research (Research Group funding programmes: Biodiversity and Taxonomy of Cryptogamic Plants, UCM 910801). Spanish Department of Science supported the field trips (Project CGL2009- 13622, 2010-2013). We want to thank Carmen Prada for the material loan and assistance.

Funders

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