SORUS-SPECIFIC EPIPHYTISM AFFECTING THE KELPS LESSONIA-NIGRESCENS AND L-TRABECULATA (PHAEOPHYTA)

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dc.contributor.authorMARTINEZ, E
dc.contributor.authorCORREA, JA
dc.date.accessioned2025-01-23T19:21:44Z
dc.date.available2025-01-23T19:21:44Z
dc.date.issued1993
dc.description.abstractThis study characterizes a tissue-specific association between the green algal epiphyte Sporocladopsis sp. and the sori of its kelp hosts, Lessonia nigrescens Bory and L. trabeculata Villouta et Santelices, occurring on the Pacific coast of Chile. The hypothesis that the distribution pattern of the epiphyte was due to constitutive features of the host was assessed by combined field and laboratory observations. Results showed that the epiphyte was confined to sori of L. nigrescens and L. trabeculata, failing to invade adjacent vegetative tissues. Infected hosts were found in northern and central Chile, reaching an incidence of 100 % in low intertidal plants of L. nigrescens, Although important modifications in microtopography develop on the surface of the mature sorus of L. nigrescens, colonization by the epiphyte occurs rather early, on immature sori with only minor surface changes. Thus, microtopographical changes per se do not appear as the only explanation for the observed distributional pattern. The absence of periodical renewal of the outer.cell wall by the reproductive tissue, in contrast with its continous removal in the vegetative tissue, provides a complementary mechanism that explains the restricted distribution of the epiphyte. In the field, growth, reproduction of the epiphyte, and infection of new tissue of L. nigrescens was accomplished in 3 wk. In the laboratory, the epiphyte was successfully isolated, and grew to maturity within 1 mo.
dc.fuente.origenWOS
dc.identifier.issn0171-8630
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/98857
dc.identifier.wosidWOS:A1993LH80600008
dc.issue.numero1
dc.language.isoen
dc.pagina.final92
dc.pagina.inicio83
dc.revistaMarine ecology progress series
dc.rightsacceso restringido
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleSORUS-SPECIFIC EPIPHYTISM AFFECTING THE KELPS LESSONIA-NIGRESCENS AND L-TRABECULATA (PHAEOPHYTA)
dc.typeartículo
dc.volumen96
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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