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The role of secondary attachment discs in the survival of Chondracanthus squarrulosus (Gigartinales, Rhodophyta)

Por: Pacheco Ruíz, Isaí [autor/a].
Zertuche González, José A [autor/a] | Espinoza Ávalos, Julio, 1952-2018 [autor/a].
Tipo de material: Artículo ArtículoTema(s): Chondracanthus squarrulosus | Algas rojas | Plantas endémicasTema(s) en inglés: Chondracanthus squarrulosus | Red algae | Endemic plantsDescriptor(es) geográficos: Bahía de los Ángeles, Ensenada (Baja California, México) Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Phycologia. volumen 44, número 6 (November 2005), páginas 629-631. --ISSN: 0031-8884Número de sistema: 50814Resumen:
Inglés

The ecological role of secondary attachment discs and crusts generated by propagules in the survival of Chondracanthus squarrulosus was evaluated. Based on in situ observations and the introduction of substrates, both the secondary discs and the crusts were found to persist under conditions of stress and produce new shoots that form part of the next generation of C. squarrulosus. The percentage of plants resulting from the surviving discs of the previous generation on the substrates introduced corresponded to 22% of new recruits. This study suggests that secondary discs can play an important role in the perennial survival of this species, in addition to the annual reproduction by spores (78%).

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Disponible para usuarios de ECOSUR con su clave de acceso

The ecological role of secondary attachment discs and crusts generated by propagules in the survival of Chondracanthus squarrulosus was evaluated. Based on in situ observations and the introduction of substrates, both the secondary discs and the crusts were found to persist under conditions of stress and produce new shoots that form part of the next generation of C. squarrulosus. The percentage of plants resulting from the surviving discs of the previous generation on the substrates introduced corresponded to 22% of new recruits. This study suggests that secondary discs can play an important role in the perennial survival of this species, in addition to the annual reproduction by spores (78%). eng

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