Accèder directement au contenu

Juan J. Pierella Karlusich

Juan J. Pierella Karlusich
FFEM Post-doctoral researcher

Phone : (33 (0) 144 32 35 28
Fax : (33) (0) 144 32 39 35
E-mail : pierella chez

Juan J. Pierella Karlusich (Post-doc)


Broadly, I work in the ecology and evolution of ocean microbial communities, with a focus on the functional and taxonomic diversity of phototrophs and nitrogen-fixers. I am using the remarkable resources that Tara Oceans expeditions generated by sampling all major oceanic regions, including meta-omics, high throughput imaging and environmental parameters. My main aim is to provide a framework for understanding the resilience of microbial communities in a changing ocean.

I have previously worked on understanding the role of chloroplast redox modulation of genome-wide responses of crop plants towards drought and pathogens, and in the different tactics that plants, algae and cyanobacteria have evolved to cope with iron deficiency.

In addition to research, I have been involved in teaching and in writing popular science articles.

Selected publications

Pierella Karlusich JJ, Pelletier E, Lombard F, Carsique M, Dvorak E, Colin S, Picheral M, Cornejo-Castillo FM, Acinas SG, Pepperkok R, Karsenti E, de Vargas C, Wincker P, Bowler C, Foster RA. (2021) Global distribution patterns of marine nitrogen-fixers by imaging and molecular methods. Nature Communications (in press).

Pierella Karlusich JJ, Bowler C, Biswas H (2021) Carbon dioxide concentration mechanisms in natural populations of marine diatoms : insights from Tara Oceans. Frontiers in Plant Science 12 : 657821.

• Dorrell RG, Villain A, Perez-Lamarque B, de Kerdrel GA, McCallum G, Watson AK, Ait-Mohamed O, Alberti A, Corre E, Frischkorn KR, Pierella Karlusich JJ, Pelletier E, Morlon H, Bowler C, Blanc G (2021) Phylogenomic fingerprinting of tempo and functions of horizontal gene transfer within ochrophytes. Proc. Natl. Acad. Sci. U.S.A. 118, 2009974118

• Kotabova+ E, Malych R+, Pierella Karlusich JJ+, Kazamia E, Eichner M, Mach J, Lesuisse E, Bowler C, Prášil O, Sutak R (2021) Complex response of the chlorarachniophyte bigelowiella natans to iron availability. mSystems 6 : e00738-20.

Pierella Karlusich JJ, Ibarbaltz F, Bowler C (2020) Phytoplankton in the Tara Ocean. Annual Review of Marine Science 12 : 18.1–18.33.

Pierella Karlusich JJ, Ibarbaltz F, Bowler C (2020) Exploration of marine phytoplankton : From their historical appreciation to the omics era. Journal of Plankton Research 42 : 595–612.

Pierella Karlusich JJ, Arce RC, Shahinnia F, Sonnewald S, Sonnewald U, Zurbriggen MD, Hajirezaei M-R, Carrillo N (2020) Transcriptional and metabolic profiling of potato plants expressing a plastid-targeted electron shuttle reveal modulation of genes associated to drought tolerance by chloroplast redox poise. International Journal of Molecular Sciences 21 : 1–22.

• Busseni G, Rocha FJV, Amato A, Pelletier E, Pierella Karlusich JJ, (...), Caputi L, Iudicone D (2019) Meta-omics reveals genetic flexibility of diatom nitrogen transporters in response to environmental changes. Molecular Biology and Evolution, 36 : 2522-2535.

Caputi L, Carradec Q, Eveillard D, Kirilovsky A, Pelletier E, Pierella Karlusich JJ, (..), Bowler C, Iudicone D (2019) Community-Level Responses to Iron Availability in Open Ocean Planktonic Ecosystems. Global Biogeochemical Cycles (doi:10.1029/2018GB006022).

Pierella Karlusich JJ, Zurbriggen MD, Shahinnia F, Sonnewald S, Sonnewald U, Hosseini SA, Hajirezaei MR, Carrillo N (2017) Chloroplast redox status modulates genome-wide plant responses during the non-host interaction of tobacco with the hemibiotrophic bacterium Xanthomonas campestris pv. vesicatoria. Frontiers in Plant Science 8 : 1158.

Pierella Karlusich JJ, Carrillo N (2017) Evolution of the acceptor side of photosystem I : ferredoxin, flavodoxin, and ferredoxin-NADP+ oxidoreductase. Photosynthesis Research. doi : 10.1007/s11120-017-0338-2

Pierella Karlusich JJ, Ceccoli RD, Graña M, Romero H, Carrillo N (2015) Environmental selection pressures related to iron utilization are involved in the loss of the flavodoxin gene from the plant genome. Genome Biology and Evolution 7 : 750-767.

Pierella Karlusich JJ, Lodeyro AF, Carrillo N (2014) The long goodbye : the rise and fall of flavodoxin during plant evolution. Journal of Experimental Botany 65 : 5161-5178.

• Lodeyro AF, Ceccoli RD, Pierella Karlusich JJ, Carrillo N (2012) The importance of flavodoxin for environmental stress tolerance in photosynthetic microorganisms and transgenic plants. Mechanism, evolution and biotechnological potential. FEBS letters586 : 2917-2924.