Effects of copper on early developmental stages of <i>Lessonia nigrescens</i> Bory (Phaeophyceae)

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dc.contributor.authorContreras, Loretto
dc.contributor.authorMedina, Matias H.
dc.contributor.authorAndrade, Santiago
dc.contributor.authorOppliger, Valeria
dc.contributor.authorCorrea, Juan A.
dc.date.accessioned2025-01-21T01:05:46Z
dc.date.available2025-01-21T01:05:46Z
dc.date.issued2007
dc.description.abstractCopper effects on the early developmental gametophytic and sporophytic stages of the kelp Lessonia nigrescens were tested in gradients of increasing concentrations of ASV-Iabile copper. The results demonstrated a high sensitivity to copper of all life-history stages of the alga, where even the lowest tested concentration affected spore release as well as their subsequent settlement. More significant, concentrations higher than 7.87 mu g L-1 totally interrupted the development of the spores after they settle. This effect led to a failure in the formation of male and female ametophytes and, as a consequence, to a complete disruption of the normal life cycle of the kelp. Thus, we suggest that the absence of L. nigrescens from copper-enriched environments results from the high sensitivity of its early life cycle stages, which limits growth and maturation of the gametophytic microscopic phase and, as a consequence, prevents development of the macroscopic sporophytic phase. (c) 2006 Elsevier Ltd. All rights reserved.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.envpol.2006.03.051
dc.identifier.eissn1873-6424
dc.identifier.issn0269-7491
dc.identifier.urihttps://doi.org/10.1016/j.envpol.2006.03.051
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96011
dc.identifier.wosidWOS:000242348600010
dc.issue.numero1
dc.language.isoen
dc.pagina.final83
dc.pagina.inicio75
dc.revistaEnvironmental pollution
dc.rightsacceso restringido
dc.subjectbrown kelps
dc.subjectcopper toxicity
dc.subjectearly developmental stages
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.titleEffects of copper on early developmental stages of <i>Lessonia nigrescens</i> Bory (Phaeophyceae)
dc.typeartículo
dc.volumen145
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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