Staff Publications Projects & Contracts Thesis


Our line of research explores the relationships between the biology of microalgae and the production of metabolites (pigments and toxins) by them, paying special attention to the effects of environmental factors (especially light factors and those related to global change), studying phytoplankton from different approaches: photobiology, chemistry of natural products (pigments, toxins), taxonomy and chemotaxonomy, life cycles, etc.




We intend to study the pigment systems of marine phytoplankton in order to:

  1. Characterize the chlorophyll and carotenoid molecules that make up the pigment systems of microalgae, relating their synthesis and interconversion with processes that involve the action of light (photo-uptake, photo-protection, photo-acclimatization, photo-adaptation),
  2. Know their distribution in the different taxonomic categories, then use pigments as biomarkers in the study of populations of planktonic organisms in natural waters.

In addition, we are working on the study of toxic episodes produced by phytoplankton and that have implications in the marine productive sectors and originate risk situations for health. For this, we propose the characterization and determination of marine biotoxins, relating their production with the biology of the producing species (biological cycle, ecophysiological responses to environmental factors …). Along these lines, we pursue to:

  1. Study the syndromes that affect Galician rías: PSP, ASP and DSP,
  2. Study problematic toxic episodes in other regions, such as those involving the production of Brevetoxin, Palitoxin, Ostreocins, Ciguatoxins, Azaspiracids, Cyclic Imines and emerging toxins.

For this we use innovative analysis methodologies that in many cases lead to the detection of compounds with previously undescribed structures.




José Luis Garrido Valencia


Tel.: +34 986 231930 ext. 860151

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