EFFECTS OF LIGHT-INTENSITY AND NUTRIENTS ON GAMETOPHYTES AND GAMETOGENESIS OF LESSONIA-NIGRESCENS BORY (PHAEOPHYTA)

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dc.contributor.authorHOFFMANN, AJ
dc.contributor.authorSANTELICES, B
dc.date.accessioned2025-01-23T19:44:07Z
dc.date.available2025-01-23T19:44:07Z
dc.date.issued1982
dc.description.abstractMeiospores of L. nigrescens Bory collected in Central Chile, were cultivated under different light and nutrient conditions to test for their influence on the development of gametophytes and gametogenesis. The microscopic stages of the life cycle are described. Under 45 .mu.E [Einsteins] .cntdot. m-2 .cntdot. s-1 (12 h daily) and sea water enriched with nitrate and phosphate, development of few-celled gametophytes, gametogenesis and sporophyte differentiation occur within 35 days. At 10 .mu.E .cntdot. m-2 .cntdot. s-1, most gametophytes are multicellular and remain vegetative up to 65 days. Only enriched sea water or enriched sea water with double concentrations of phosphate lead to fertile few-celled gametophytes under 45 .mu.E .cntdot. m-2 .cntdot. s-1. The addition of double concentrations of nitrate - allows for the development of few-celled gametophytes but inhibits gametogenesis. The average gametophyte size progressively decreases when increasing amounts of nitrate and phosphate are added to the media.
dc.fuente.origenWOS
dc.identifier.eissn1879-1697
dc.identifier.issn0022-0981
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/99947
dc.identifier.wosidWOS:A1982NK13000007
dc.issue.numero1
dc.language.isoen
dc.pagina.final89
dc.pagina.inicio77
dc.revistaJournal of experimental marine biology and ecology
dc.rightsacceso restringido
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.titleEFFECTS OF LIGHT-INTENSITY AND NUTRIENTS ON GAMETOPHYTES AND GAMETOGENESIS OF LESSONIA-NIGRESCENS BORY (PHAEOPHYTA)
dc.typeartículo
dc.volumen60
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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