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Methylglyoxal metabolism in seaweeds during desiccation [Metabolismo de metilglioxal en macroalgas durante desecación]

dc.contributor.authorFierro C.
dc.contributor.authorLópez-Cristoffanini C.
dc.contributor.authorLatorre N.
dc.contributor.authorRivas J.
dc.contributor.authorContreras-Porcia L.
dc.date.accessioned2020-09-02T22:17:54Z
dc.date.available2020-09-02T22:17:54Z
dc.date.issued2016
dc.identifier10.4067/S0718-19572016000100019
dc.identifier.citation51, 1, 187-191
dc.identifier.issn07173326
dc.identifier.urihttps://hdl.handle.net/20.500.12728/4493
dc.descriptionIn primary producers, diverse stressors cause an over-production of methylglyoxal (MG), which is principally detoxified by glyoxalase I (GLO1) activity. A recent proteomic study found that GLO1 was up-regulated during natural desiccation in the red seaweed Pyropia orbicularis, which inhabits the upper intertidal rocky zone and compared to other species, is highly tolerant to air exposure. To better understand and determine differential responses to desiccation stress, this study evaluated MG concentration and GLO1 activity in two species with contrasted vertical distribution, P. orbicularis and Lessonia spicata (lower distribution). Results showed that P. orbicularis successfully scavenges MG via increased GLO1 activity during desiccation. In contrast, GLO1 activity in L. spicata did not increase during desiccation, resulting in MG overproduction. This study is the first to quantify MG and GLO1 levels in seaweeds during natural stress, and partly explain the mechanisms by which P. orbicularis is dominant in the upper rocky intertidal zone. © 2016, Universidad de Valparaiso. All Rights Reserved.
dc.language.isoen
dc.publisherUniversidad de Valparaiso
dc.subjectDesiccation
dc.subjectGlyoxylase I
dc.subjectLessonia
dc.subjectMethylglyoxal
dc.subjectPyropia
dc.subjectalga
dc.subjectdesiccation
dc.subjectenzyme
dc.subjectmetabolism
dc.subjectorganic compound
dc.subjectproteomics
dc.subjectseaweed
dc.titleMethylglyoxal metabolism in seaweeds during desiccation [Metabolismo de metilglioxal en macroalgas durante desecación]
dc.typeArticle


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