RIGONATO Janaina

Research interests

Looking at the ocean and imagining how life is maintained has, for a long time, been a subject that moved my mind. Beyond the big creatures, which can captivate the attention of most people, there is the invisible portion that sustains this entire system.

The phytoplankton is one fraction of this invisible world, floating in the water column, they have similar requirements as plants to develop, and constitute the primary source of food within the oceans. Due to their photosynthetic capability, these tiny organisms are essential for the capture of atmospheric carbon, stocking it in the oceans, and in return, releasing oxygen, and contributing almost 50% of its stock within the atmosphere. These are merely some of the features that make the phytoplankton a key element in the ecological function for all aquatic life.

During my professional career, I focused on understanding the drivers that govern the phytoplankton diversity and distribution in ecosystems.

Nowadays, I am a Post-doc collaborator in the LOMIC laboratory at Banyuls-sur-Mer Observatory, and I am currently working on the distribution of genes related to circadian clock in green algae residing within the different oceanic basins. These genes are shown to be responsible for controlling the organism’s day-night metabolism activities.  Our goal is to evaluate the relation of gene variants through a latitudinal gradient by taking advantage of global circumnavigation projects that have previously been conducted, such as the Tara Oceans expedition.

This work aims to investigate possible shifts in these populations reflecting global world changes.

Held positions

PostDoc (2019-present)

LOMIC - Observatoire Océanologique de Banyuls-sur-Mer

PostDoc (2017-2019)

GENOSCOPE/Centre Nacional de Sequençage

PostDoc (2013-2017)

Center for Nuclear Energy in Agriculture (USP)

Collaborator Professor (2012-2013)

São Paulo State University (UNESP)

Laboratory technician (2005-2007)

Agonomic Institut of Paraná

Education

Ph.D., Microbiology in Agriculture (August, 2010)

University of São Paulo – ESALQ

Dissertation: Diversity of cyanobacteria in São Paulo state mangroves

Fellowship: FAPESP

M.S., Genetics and Molecular Biology (December, 2004)

Londrina State University – PR/Brazil

B.A. Biology (December, 2002)

Londrina State University – PR/Brazil

Publications in the last 5 years

1. Henstschke, G; Rigonato, J; Genuário, DB; Laughinghouse, HD, Sant’Anna, CL. Morphological and molecular characterization of Stigonema jureiensis sp. nov. (Nostocales, Cyanobacteria) from the Atlantic Rainforest, São Paulo, Brazil. Fottea, Olomouc 19(2), p. 185-191. 2019

2. Gama, WA; Rigonato, J; Fiore, MF; Sant'Anna, CL. New insights into Chroococcus (Cyanobacteria) and two related genera: Cryptococcum gen. nov. and Inacoccus gen. nov. European Journal of Phycology, doi:10.1080/09670262.2018.1563913. 2019.

3. Sant'Anna, C L; Gama, WA; Rigonato, J; Correa, G; Mesquita, MCB; Marinho, MM. Phylogenetic connection among close genera of Aphanizomenonaceae (Cyanobacteria): Amphiheterocytum gen. nov., Cylindrospermopsis and Sphaerospermopsis. Algal Research-Biomass Biofuels and Bioproducts, v.37, p.205 - 214, 2019.

4. Jacinavicius, FR; Pacheco, AB; Chow, F.; Costa, GCV; Kalume, DE; Rigonato, J. Schimidt, E; Sant’Anna, CL. Different ecophysiological and structural strategies of toxic and non-toxic Microcystis aeruginosa (Cyanobactera) strains assessed under culture conditions. Algal Research-Biomass Biofuels and Bioproducts, v. 41, p. 101548. 2019

5. Andreote, APD; Dini-Andreote, F; Rigonato, J; Machineski, GS; Souza, BCE; Barbiero, L; Rezende-Filho, AT; Fiore, MF. Contrasting the Genetic Patterns of Microbial Communities in Soda Lakes with and without Cyanobacterial Bloom. Frontiers in Microbiology, v.9, p.1 - 13, 2018.

6. Affe, HMJ*; Rigonato, J*; Nunes, JMC; Menezes, M. Metagenomic Analysis of Cyanobacteria in an Oligotrophic Tropical Estuary, South Atlantic. Frontiers in Microbiology, v.9, p.1 - 13, 2018. *share first authorship

7. Egea, TC; Silva, R; Boscolo, M; Rigonato, J; Monteiro, DA; Grünig, D; Silva, H; Van Der Wielen, F; Helmus, R; Parsons, JR; Gomes, E. Diuron degradation by bacteria from soil of sugarcane crops. Heliyon, v.3, p.e00471 - , 2017.

8. Hentschke, GS; Johansen, JR; Pietrasiak, N; Rigonato, J.; Fiore, M. F.; Sant'Anna, CL. Komarekiella atlantica gen. et sp. nov. (Nostocaceae, Cyanobacteria): a new subaerial taxon from the Atlantic Rainforest and Kauai, Hawaii. Fottea, v.17, p.178 - 190, 2017.

9. Rigonato, J; Sant’Anna, CL; Giani, A; Azevedo, MTP; Gama, WA; Viana, VFL; Fiore, MF; Werner, VR. Sphaerocavum: a coccoid morphogenus identical to Microcystis in terms of 16S rDNA and ITS sequence phylogenies. Hydrobiologia,  v.e., p.1 - 14, 2017.

10. Rigonato, J; Kent, AD; Gumiere, T; Branco, LHZ; Andreote, FD; Fiore, MF. Temporal assessment of microbial communities in soils of two contrasting mangroves. Brazilian Journal of Microbiology, v.49, p.87 - 96, 2017.

11. Rigonato, J; Branco, LHZ; Brandini, FP; Gama, WA; Genuário, DB; Alvarenga, DO; Fiore, MF. Aliterella atlantica gen. nov., sp. nov. and Aliterella antarctica sp. nov., novel members of coccoid cyanobacteria. International Journal of Systematic and Evolutionary Microbiology, v.66, p.2853 – 2861. 2016.

12. Popin, RV; Rigonato, J; Abreu, VAC; Andreote, APD; Silveira, SB; Odebrecht, C; Fiore, MF. Draft Genome Assembly of the Bloom-Forming Cyanobacterium Nodularia spumigena Strain CENA596 in Shrimp Production Ponds. Genome Announcements v.4, p.e00466-16 - , 2016.

13. Rigonato, J*; Gonçalves, N*; Andreote, APD; Lambais, MR; Fiore, MF. Estimating genetic structure and diversity of cyanobacterial communities in Atlantic forest phyllosphere. Canadian Journal of Microbiology v.62, p.953 - 960, 2016. *share first authorship

14. Jacinavicius, FR; Carneiro, RL; Sant’Anna, CL; Rigonato, J; Carvalho, LR. Phenotypic plasticity and negative allelopathy in Microcystis strains. Annals of Microbiology, v. 66, p.1265-1276, 2016.

15.Alvarenga, DO; Branco, LHZ; Rigonato, J; Melo, IS; Fiore, MF. Phyllonema aviceniicola gen. nov., sp. nov. and Foliisarcina bertiogensis gen. nov., sp. nov., epiphyllic cyanobacteria associated with Avicennia schaueriana leaves. International Journal of Systematic and Evolutionary Microbiology, v.66, p.689 - 700, 2016.

16. Martins, MD; Rigonato, J; Taboga, SR; Branco, LHZ. Proposition of Ancylothrix gen. nov., a new genus of Phormidiaceae (Cyanobacteria, Oscillatoriales) based on polyphasic approach. International Journal of Systematic and Evolutionary Microbiology, v. 66, p.2396-2405, 2016.

17. Hentschke, GS; Johansen, JR; Pietrasiak, N; Fiore, MF; Rigonato, J; Sant’anna, CL; Komárek, J. Phylogenetic placement of Dapisostemon gen. nov. and Streptostemon, two tropical heterocytous genera (Cyanobacteria). Phytotaxa, v.245, p.129 - 143, 2016.

18. Silva-Stenico, ME; Rigonato, J; Lorenzi, AS; Azevedo, MTP; Sant'anna, CL; Fiore, MF. Bioactive Cyanopeptides Produced by Sphaerocavum brasiliense Strains (Cyanobacteria). Journal of the Brazilian Chemical Society, v.26, p.2088 - 2096, 2015.

19. Malone, CF; Wilmotte, A; Sant'anna, CL; Bouzon, ZL; Fiore, MF; Schmidt, EC; Laughinghouse, HD; Rigonato, J. Cephalothrix gen. nov. (Cyanobacteria): towards an intraspecific phylogenetic evaluation by multilocus analyses. International Journal of Systematic and Evolutionary Microbiology, v.65, p.2993 - 3007, 2015.

20. Alvarenga, DO; Rigonato, J; Branco, LHZ; Fiore, MF. Cyanobacteria in mangrove ecosystems. Biodiversity and Conservation, v.24, p.799 - 817, 2015.

21. Rigonato, J; Alvarenga, DO; Branco, LHZ; Varani, AM; Brandini, FP; Fiore, MF. Draft Genome Sequence of a Novel Culturable Marine Chroococcalean Cyanobacterium from the South Atlantic Ocean. Genome Announcements, v.3, p.e00384-15 - , 2015.

22. Elias, LM; Silva-Stenico, ME; Alvarenga, DO; Rigonato, J; Fiore, MF; Lira, SP. Molecular and Chemical Analyses of Cyanobacterial Blooms in Tropical Lagoons from Southeast Brazil. Journal of Water Resource and Protection, v.07, p.50 - 71, 2015.