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Porphyra sp. (Bangiales, Rhodophyta): reproduction and life form

  • A. Candia
  • S. Lindstrom
  • E. Reyes
Conference paper
  • 426 Downloads
Part of the Developments in Hydrobiology book series (DIHY, volume 137)

Abstract

The reproductive pattern of Porphyra sp. was observed in laboratory culture. The thalli obtained from both natural populations and from cultures were monostromatic and reniform, obovate to linear-oblanceolate. Under the different culture conditions, no differentiation of sexual cells, spermatia or carpogonia, was observed; propagation occurred by archeospore formation (sensu Magne, 1991), with bipolar germination. Thirty successive generations have been obtained in culture, at temperatures of 12 °C and 15 °C, and each time a laminar gametophytic thallus was produced. It is concluded that Porphyra sp. has a strictly asexual reproductive pattern. This is interpreted as a reproductive adaptation to its epiphytic life form.

Key words

archeospores asexual epiphyte Porphyra reproduction 

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Copyright information

© Springer Science+Business Media Dordrecht 1999

Authors and Affiliations

  • A. Candia
    • 1
  • S. Lindstrom
    • 2
  • E. Reyes
    • 3
  1. 1.División de Fomento AcuiculturaInstituto de Fomento PesqueroPuerto MonttChile
  2. 2.Department of BotanyUniversity of British ColumbiaCanada
  3. 3.Departamento de Biología MolecularUniversidad de ConcepciónChile

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