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Metal speciation and environmental impact on sandy beaches due to El Salvador copper mine, Chile.
TLDR
The results, compared to local biological diversity, showed that those sites characterized by the highest metal concentrations in bioavailable phase had the lowest biodiversity. Expand
Phylogeographic analyses of the 30 degrees S south-east Pacific biogeographic transition zone establish the occurrence of a sharp genetic discontinuity in the kelp Lessonia nigrescens: vicariance or
TLDR
The combined information given by the multilocus approach and by the population analysis suggested the occurrence of a budding speciation, with a northward range expansion, in the intertidal kelp Lessonia nigrescens. Expand
Copper accumulation, synthesis of ascorbate and activation of ascorbate peroxidase in Enteromorpha compressa (L.) Grev. (Chlorophyta) from heavy metal‐enriched environments in northern Chile
TLDR
It is suggested that E. compressa tolerates a copper-enriched environment, and the accompanying oxi- dative stress, through the accumulation of copper, activation of ascorbate peroxidase, synthesis of asCorbate (accumulated as dehydroascorbate) and consumption of glutathione and water-soluble phenolic compounds. Expand
Sulfated Oligosaccharides Mediate the Interaction between a Marine Red Alga and Its Green Algal Pathogenic Endophyte
TLDR
The endophytic green alga Acrochaete operculata completely colonizes the sporophytes of the red alga Chondrus crispus; however, it does not penetrate beyond the outer cell layers of the gametophytes, so whether carrageenan fragments could modulate parasite virulence was investigated. Expand
Red algal farming in Chile: a review
TLDR
The main objective of this contribution is to summarize the present situation of red seaweed cultivation in Chile, by reviewing the landing statistics of these resources, followed by a summary of recent information that favours cultivation. Expand
Micro-evolution due to pollution: possible consequences for ecosystem responses to toxic stress.
TLDR
This review presents four testable hypotheses considering that micro-evolution due to pollution acts upon the variability of functional response traits of the exposed populations and generates changes on their functional effect traits, therefore, modifying the way species exploit their ecological niches and participate in the overall ecosystem functioning. Expand
Copper stress proteomics highlights local adaptation of two strains of the model brown alga Ectocarpus siliculosus
TLDR
The occurrence of two different phenotypes within two distinct E. siliculosus strains studied at the physiological and proteomic levels strongly suggest that persistent copper stress may represent a selective force leading to the development of strains genetically adapted to copper contaminated sites. Expand
Copper stress induces biosynthesis of octadecanoid and eicosanoid oxygenated derivatives in the brown algal kelp Laminaria digitata.
TLDR
The results suggest that lipid peroxidation participates in the toxic effects of copper and that lipidPeroxidation derivatives may regulate protective mechanisms by employing plant-like octadecanoid signals but also eicosanoid oxylipins which are absent in vascular plants. Expand
Tolerance to oxidative stress induced by desiccation in Porphyra columbina (Bangiales, Rhodophyta)
TLDR
The results indicate that desiccation in P. columbina causes overproduction of ROS that is efficiently attenuated and could be operating as tolerance mechanisms due to the fact that these responses principally prevent biomolecular alteration and cellular collapse. Expand
CONVERGENT BIOLOGICAL PROCESSES IN COALESCING RHODOPHYTA
TLDR
The widespread occurrence of coalescence inroughly half the number of orders of the Florideophycidae, the similarity of the coalescence process, and the finding of various adaptive traits associated with coalescence characterizes this as a unique growth style, splitting the diversity of species now included in theFlorideophyCidae into two major groups: coalescing and noncoalescing Rhodophyta. Expand
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