Germination rate and sporeling development of Chondracanthus chamissoi (Rhodophyta, Gigartinales) varies along a latitudinal gradient on the coast of Chile

Cistian Bulboa, Juan Macchiavello, Karina Véliz, Eurico C. Oliveira

Resultado de la investigación: Contribución a una revistaArtículo

18 Citas (Scopus)

Resumen

Chondracanthus chamissoi (C. Agardh) Kützing is an economically important red seaweed with an extended latitudinal distribution along the south-east Pacific. Here we report on the seasonal in vitro germination of carpospores and tetraspores from four populations distributed from 27 to 41° S on the Chilean coast. Our results show that both types of spores exhibited a different physiological behavior related to the geographic origin of the specimens. Germination occurred throughout the year for both spore types in the four populations. However, for the northern locations (Calderilla, La Herradura and Puerto Aldea) germination was higher in spring, while for the southern location (Lechagua), germination was higher in summer. The growth rate of carposporelings and tetrasporelings varied seasonally in all locations studied, with higher growth in spring. Among all, carposporelings from Lechagua specimens reached the highest growth rates (9.3 ± 0.2% d-1). However, spores from Herradura and P. Aldea had a good germination and SGR in all seasons and would be good candidates to start spores-based cultivation of this valuable resource in Chile.

Idioma originalInglés
Páginas (desde-hasta)137-141
Número de páginas5
PublicaciónAquatic Botany
Volumen92
N.º2
DOI
EstadoPublicada - feb 2010

Áreas temáticas de ASJC Scopus

  • Ciencias acuáticas
  • Botánica

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