ABIOTIC CONTROL OF REATTACHMENT IN GELIDIUM-CHILENSE (MONTAGNE) SANTELICES-AND-MONTALVA (GELIDIALES, RHODOPHYTA)

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dc.contributor.authorSANTELICES, B
dc.contributor.authorVARELA, D
dc.date.accessioned2025-01-21T01:35:36Z
dc.date.available2025-01-21T01:35:36Z
dc.date.issued1994
dc.description.abstractMany of the agar-producing species of Gelidium and Pterocladia live on calcareous substrata in habitats with strong water movement. The thalli may suffer fragmentation by hydrodynamic drag but the vegetative fragments may reattach through differentiation of bundles of colorless, elongated rhizoids produced by inner and outer cortical cells. These rhizoids pass through intercellular spaces in the cortex, protrude outside the frond and cement the thallus fragments to the substratum. In Gelidium chilense (Montagne) Santelices & Montalva, differentiation and abundance of bundles of attachment cells are stimulated by the presence of calcareous substratum, minor additions (0.5 mM) of Ca2+ to the culture medium and by the highest photon flux density used (50-90 muE.m-2.s-1). Photoperiod does not affect production of bundles of attachment cells. Reattachment time can be as short as 10 days under optimal culture conditions. The significant effects of calcium substratum and dissolved Ca2+ on the differentiation process of these attachment cells is consistent with the high number of reports describing species of Gelidium living associated with calcareous substratum.
dc.fuente.origenWOS
dc.identifier.issn0022-0981
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97700
dc.identifier.wosidWOS:A1994NK99500001
dc.issue.numero2
dc.language.isoen
dc.pagina.final155
dc.pagina.inicio145
dc.revistaJournal of experimental marine biology and ecology
dc.rightsacceso restringido
dc.subjectATTACHMENT CELL
dc.subjectCA2+ CELLULAR EFFECT
dc.subjectCALCAREOUS SUBSTRATUM
dc.subjectGELIDIUM-CALCAREOUS ALGAL INTERACTION
dc.subjectGELIDIUM-CHILENSE
dc.subject.ods14 Life Below Water
dc.subject.ods13 Climate Action
dc.subject.ods15 Life on Land
dc.subject.odspa14 Vida submarina
dc.subject.odspa13 Acción por el clima
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleABIOTIC CONTROL OF REATTACHMENT IN GELIDIUM-CHILENSE (MONTAGNE) SANTELICES-AND-MONTALVA (GELIDIALES, RHODOPHYTA)
dc.typeartículo
dc.volumen177
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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