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Sónia Cruz

Sónia Cruz

Assistant Researcher, PhD

  • Department: Biology
  • Research Group: Marine Biotechnology & Aquaculture
  • ISI Web of KnowledgeSM search factor : Researcher ID: F-6165-2011

Current Research Interests

  • Physiological and behavioural photoprotective responses against oxidative stress in marine photosynthetic symbiosis

  • Physiological photoprotective mecanisms in micro- and macroalgae

Professional Experience

Junho 2015 - Presente Researcher at University of Aveiro (Portugal). Colaboration with the University of Copenhagen (Denmark) - Michael Kühl Team. Project: Molecular and photochemical insights on the retention of functional chloroplasts by metazoan cells. Funding: Fundação para a Cência e a tecnologia (FCT - Programa IF 2014).

April 2011 - May 2015 Postdoctoral Researcher at University of Aveiro (Portugal) in colaboration with the University of Copenhagen (Denmark), funded by Fundação para a Ciência e a Tecnologia (FCT): SFRH/BPD/74531/2010 (April 2011 - March 2014), SFRH/BCC/52508/2014 (April 2014 - November 2014), SFRH/BPD/97027/2013 (December 2014 - May 2015). Project: Cracking the puzzle of solar powered sea slugs - molecular and photochemical insights on the retention of functional chloroplasts by metazoan cells.

January 2010 - March 2011 Postdoctoral Research Associate at the Department of Plant Sciences, University of Cambridge (UK). Investigated the potential of using photosynthetic microorganisms in a photovoltaic-type device to generate electricity. My main focus was to understand how electrons flow from the chloroplast to the external environment.

September 2005 - December 2009 PhD Student: Investigating Photoprotective Mechanisms in Diatoms. Department of Animal & Plant Sciences, University of Sheffield (UK). Colaboration with the Department of Plant Physiology, University of Leipzig (Germany).

December 2004 - June 2005 Research assistant. Department of Biology, University of Aveiro (Portugal). Research project: A new methodology for the quantification of the primary production of estuarine microphytobenthos.

Academic Degrees

September 2005 - December 2009
Awarded the degree of Doctor of Phylosophy (PhD) by the University of Sheffield (UK) on 12 May 2010
- Thesis title: Photosynthetic energy dissipation and chlororespiration in diatoms
Supervised by Prof. Peter Horton FRS and Prof. Richard C. Leegood

September 1999 - October 2004
Awarded the first degree in Biology by the University of Aveiro (Portugal) on 20 October 2004
- Project I title: Detection of diel rhythms in Cylindrotheca closterium and natural diatom-dominated biofilms, using in vivo chlorophyll a fluorescence measurements
Supervised by Prof. João Serôdio, University of Aveiro, Portugal
- Project II title: A pilot study of organ scaling in Atlantic cod (Gadus morhua)
Supervised by Prof. Roderick Nigel Finn, University of Bergen, Norway
- Internship Title: Non-photochemical quenching and the xanthophyll cycle in Cylindrotheca closterium and microphytobenthos
Supervised by Prof. Vanda Brotas, Centre of Oceanography, Portugal

Scientific Supervision

In progress


In progress
  • CtLight: Effects of light on the photobiology and growth of the commercially valuable macroalgae Codium tomentosum See more
  • Omics4Algae - Lipidomic tools for chemical phenotyping, traceability and valorisation of seaweeds from aquaculture as a sustainable source of high added-value compounds See more
  • TraSeafood Tracing the Geographic Origin of Seafood as a Pathway Towards the Smart Valorization of Endogenous Marine Resources See more
  • HULK - Functional Chloroplasts inside Animal cells: cracking the puzzle See more
  • PhotoSymbiOxiS - Physiological and behavioural photoprotective processes against oxidative stress in marine photosynthetic symbioses See more


WoS Papers (22)
Serôdio J., Cruz S., Vieira S., Brotas V. (2005) Non-photochemical quenching of chlorophyll fluorescence and operation of xanthophyll cycle in microphytobenthos. In: Academic Degrees. Journal Of Experimental Marine Biology And Ecology. 326, 157-169.
Serôdio J., Vieira S., Cruz S., Barroso F. (2005) Short-term variations in the photosynthetic activity of microphytobenthos as detecetd by measuring rapid light curves using variable fluorescence. In: Academic Degrees. Marine Biology . 146, 903-914.
Serôdio J., Coelho H., Vieira S., Cruz S. (2006) Microphytobenthos vertical migratory photoresponse as characterised by light-response curves of surface biomass. In: Academic Degrees. Estuarine Coastal And Shelf Science. 68, 547-556.
Serôdio J., Cruz S., Vieira S., Coelho H. (2006) Rapid light-response curves of chlorophyll fluorescence in microalgae: relationship to steady-state light curves and non-photochemical quenching in benthic diatom-dominated assemblages. In: Academic Degrees. Photosynthesis Research. 90, 29-43.
Cruz S., Serôdio J. (2008) Relationship of rapid light curves of variable fluorescence to photoacclimation and non-photochemical quenching in a benthic diatom. In: Academic Degrees. Aquatic Botany. 88, 256-264.
Serôdio J., Vieira S., Cruz S. (2008) Photosynthetic activity, photoprotection and photoinhibition in intertidal microphytobenthos as studied in situ using variable chlorophyll fluorescence. In: Academic Degrees. Continental Shelf Research. 28, 1363-1375.
Cruz S., Goss R., Wilhelm C., Leegood R., Horton P., Jakob T. (2011) Impact of chlororespiration on non-photochemical quenching of chlorophyll fluorescence and on the regulation of the diadinoxanthin cycle in the diatom Thalassiosira pseudonana. In: Academic Degrees. Journal Of Experimental Botany. 62, 2, 509-519.
Bombelli P., Bradley R.W., Scott A.M., Philips A.J., McCormick A.J., Cruz S.M., Anderson A., Yunus K., Bendall D.S., Cameron P.J., Davis J.M., Smith A.G., Howe C.J., Fisher A.C. (2011) Quantitative analysis of the factors limiting solar power transduction by Synechocystis sp. PCC 6803 in biological photovoltaic devices. In: Academic Degrees. Energy & Environmental Sciences. 4, 11, 4690-4698.
Cruz S., Dionísio G., Rosa R., Calado R., Serôdio J. (2012) Anesthetizing solar-powered sea slugs for photobiological studies. In: Academic Degrees. The Biological Bulletin. 160, 43-54.
Dionisio G., Rosa R., Leal M.C., Cruz S., Brandao C., Calado G., Serodio J., Calado R. (2013) Beauties and beasts: A portrait of sea slugs aquaculture. In: Academic Degrees. Aquaculture. 408, 1-14.
Cartaxana P., Domingues N., Cruz S., Jesus B., Laviale M., Serodio J., da Silva J.M. (2013) Photoinhibition in benthic diatom assemblages under light stress. In: Academic Degrees. Aquatic Microbial Ecology. 70, 1, 87-92.
Cruz S., Cartaxana P., Newcomer R., Dionisio G., Calado R., Serodio J., Pelletreau K.N., Rumpho M.E. (2015) Photoprotection in sequestered plastids of sea slugs and respective algal sources. In: Academic Degrees. Scientific Reports. 5,
Cartaxana P., Vieira S., Ribeiro L., Rocha R.J.M., Cruz S., Calado R., da Silva J.M. (2015) Effects of elevated temperature and CO2 on intertidal microphytobenthos. In: Academic Degrees. Bmc Ecology. 15,
Cartaxana P., Ribeiro L., Goessling J.W., Cruz S., Kuhl M. (2016) Light and O-2 microenvironments in two contrasting diatom-dominated coastal sediments. In: Academic Degrees. Marine Ecology Progress Series. 545, 35-47.
Serodio J., Cruz S., Cartaxana P., Calado R. (2014) Photophysiology of kleptoplasts: photosynthetic use of light by chloroplasts living in animal cells. In: Academic Degrees. Philosophical Transactions Of The Royal Society B-biological Sciences. 369, 1640, 1471-2970.
Cruz S., Calado R., Serodio J., Jesus B., Cartaxana P. (2014) Pigment profile in the photosynthetic sea slug Elysia viridis (Montagu, 1804). In: Academic Degrees. Journal Of Molluscan Studies. 80, 475-481.
Cruz S., Calado R., Serodio J., Cartaxana P. (2013) Crawling leaves: photosynthesis in sacoglossan sea slugs. In: Academic Degrees. Journal Of Experimental Botany. 64, 13, 3999-4009.
Cartaxana P., Cruz S., Gameiro C., Kuhl M. (2016) Regulation of Intertidal Microphytobenthos Photosynthesis Over a Diel Emersion Period Is Strongly Affected by Diatom Migration Patterns. In: Academic Degrees. Frontiers In Microbiology. 7,
Christa G., Cruz S., Jahns P., de Vries J., Cartaxana P., Esteves A.C., Serodio J., Gould S.B. (2017) Photoprotection in a monophyletic branch of chlorophyte algae is independent of energy-dependent quenching (qE). In: Academic Degrees. New Phytologist. 214, 3, 1132-1144.
Cartaxana P., Trampe E., Kuhl M., Cruz S. (2017) Kleptoplast photosynthesis is nutritionally relevant in the sea slug Elysia viridis. In: Academic Degrees. Scientific Reports. 7,
da Silva J.M., Cruz S., Cartaxana P. (2017) Inorganic carbon availability in benthic diatom communities: photosynthesis and migration. In: Academic Degrees. Philosophical Transactions Of The Royal Society B-biological Sciences. 372, 1728,
Rey F., da Costa E., Campos A.M., Cartaxana P., Maciel E., Domingues P., Domingues M.R.M., Calado R., Cruz S. (2017) Kleptoplasty does not promote major shifts in the lipidome of macroalgal chloroplasts sequestered by the sacoglossan sea slug Elysia viridis. In: Academic Degrees. Scientific Reports. 7,
Other Papers (1)
Bombelli P., McCormick A., Bradley R., Yunus K., Philips J., Anderson X., Cruz S., Thorne R., Gu N., Smith A., Bendall D., Howe C., Peter L., Fisher A. (2011) Harnessing solar energy by bio-photovoltaic (BPV) devices. In: Academic Degrees. Communications In Agricultural And Applied Biological Sciences. 76, 2, 89-91.
Books (0)
Book Chapter (0)
Thesis (1)
Cruz S. (2010) Photosynthetic energy dissipation and chlororespiration in diatoms. In: Academic Degrees. PhD Thesis.
Communications (0)
Other Publications (0)

CESAM - Centro de Estudos do Ambiente e do Mar - Universidade de Aveiro

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