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Dr Joseph Alexander Christie de Oleza

Dr Joseph Alexander Christie de Oleza
Chapter 6 ( Ramón y Cajal contract researcher )




First and Family name


Researcher codes

WoS Researcher ID (*)


SCOPUS Author ID(*)


Open Researcher and Contributor ID (ORCID) **


A.1. Current position

Name of University/Institution

University of the Balearic Islands 


 Department of Biology

Address and Country

Ctra. Valldemossa km 7.5, Edif. Guillem Colom 07122

Phone number



Current position

Ramon y Cajal



Key words

marine microbial ecology; molecular biology; microbial interactions; nutrient cycling; microplastics; polymer biodegradation 


A.2. Education






U. Balearic Islands




U. Balearic Islands




U. Balearic Islands


Advanced Microbiology


U. Balearic Islands


Environ. Microbiol. & Biotechnol


A.3. JCR articles, h Index, thesis supervised

38 peer reviewed publications (indexing from Web of Science) from which:

  • 27 as first / last author (16 as corresponding author)
  • 32 in the first quartile
  • 15 in the first decile (Nature Microbiology, Nature Communications, ISME, Microbiome, Current Biology, Molecular & Cellular Proteomics, Environmental Science & Technology, J Hazardous Materials, Microbial Ecol)
  • 1,373 citations (1,035 since 2016) Google Scholar

h-index of 18 (14 since 2016) Google Scholar

i10-index of 28 (22 since 2016) Google Scholar

7 PhD theses completed (6 as main supervisor)

4 PhD theses in process (3 as main supervisor)

Over ¤2.2M in research grants won as Principal Investigator (PI)


Part B. CV SUMMARY (max. 3500 characters, including spaces)

I recently moved from the University of Warwick to the University of the Balearic Islands (2019) as a Ramon y Cajal – an extremely competitive tenure track fellowship programme to attract talent in Spain. I have been an Independent Group Leader since 2013. In 2015 the University of Warwick (i.e. ranked among the ten best universities in the UK and in the top 100 across the world according to QS) offered me a position as an Assistant Professor based on my outstanding scientific trajectory. Throughout my career I have been externally funded through competitively won fellowships (Areces Foundation Fellowship, IEF Marie Curie Research Fellowship, NERC Independent Research Fellowship and, now, a Ramon y Cajal) demonstrating my ability not only to put forward original research ideas but also my capacity for managing my own research projects and generating outputs of high impact in the form of publications (see figure above). As a pro-active group leader, I have gained management skills through the development of my own vibrant research group, with eleven PhD students, a research technician and two postdocs. During my three main international career moves (i.e. Spain-France, France-UK, UK-Spain), I have developed a network of interdisciplinary and international collaborators.

            My laboratory has two main lines of work in marine molecular ecology:

            - Line 1: Marine microbial interactions – nutrient cycling and microbial evolution.

            - Line 2: Ecology and biodegradation of marine plastic.



C.1. Publications (since 2012)

IF, impact factor from year of publication; * indicates corresponding author

    1. Wright, R.J.; Bosch, R.; Langille, M.G.I.; Gibson, M.I.; Christie-Oleza, J.A.* 2021 A multi-OMIC characterisation of biodegradation and microbial community succession within the PET Plastisphere. Microbiome, accepted (IF: 11.6) Q1 D1
    2. Dedman, C.J.; King, A.; Christie-Oleza, J.A.*; Davies, G.L. 2021 Environmentally relevant concentrations of titanium dioxide nanoparticles pose negligible risk to marine microbes. Environmental Science-Nano, accepted (IF: 7.7) Q1 D1
    3. Aguilo-Ferretjans, M.M.; Bosch, R.; Puxty, R.J.; Latva, M.; Zadjelovic, V.; Chhun, A.; Sousoni, D.; Polin, M.; Scanlan, D.J.; Christie-Oleza, J.A.* 2021 Pili allow dominant marine cyanobacteria to avoid sinking and evade predation. Nature Communications, 12: 1857. (IF: 12.1) Q1 D1
    4. Chhun, A.; Sousoni, D.; Aguilo‐Ferretjans, M.M.; Song, L.; Corre, C.; ChristieOleza, J.A.* 2021 Phytoplankton trigger the production of cryptic metabolites in the marine actinobacterium Salinispora tropica. Microbial Biotechnology, 14: 291-306. (IF: 5.3) Q1
    5. Helliwell, K.E.; Harrison, E.L.; Christie-Oleza, J.A.; Rees, A.P.; Kleiner, F.H.; Gaikwad, T.; Downe, J.; Aguilo-Ferretjans, M.M.; Al-Moosawi, L.; Brownlee, C.; Wheeler, G.L. 2021 A novel Ca2+ signaling pathway coordinates environmental phosphorus sensing and nitrogen metabolism in marine diatoms. Current Biology, 31: 978-989. (IF: 9.6) Q1 D1
    6. Wright, R.J.; Erni-Cassola, G.; Zadjelovic, V.; Latva, M.; Christie-Oleza, J.A.* 2020 Marine plastic debris: a new surface for microbial colonization. Environmental Science & Technology, 54: 11657−11672. (IF: 7.9; Front Cover) Q1 D1
    7. Wright, R.J.; Bosch, R.; Gibson, M.I.; Christie-Oleza, J.A.* 2020 Plasticizer degradation by marine bacterial isolates: a proteogenomic and metabolomic characterization. Environmental Science & Technology, 54: 2244-2256. (IF: 7.9; Front Cover) Q1 D1
    8. Dedman, C.J.; Newson, G.C.; Davies, G.L.; Christie-Oleza, J.A.* 2020 Mechanisms of silver nanoparticle toxicity on the marine cyanobacterium Prochlorococcus under environmentally-relevant conditions. Science of the Total Environment, 747: 141229. (IF: 6.6) Q1 D1
    9. Zadjelovic, V.; Chhun, A.; Quareshy, M.; Silvano, E.; Hernandez-Fernaud, J.R.; Aguilo-Ferretjans, M.M.; Bosch, R.; Dorador, C.; Gibson, M.I.; Christie-Oleza J.A.* 2020 Beyond oil degradation: enzymatic potential of Alcanivorax to degrade natural and synthetic polyesters. Environmental Microbiology, 22 (4): 1356–1369. (IF: 4.9) Q1
    10. Erni-Cassola, G.; Wright, R.J.; Gibson, M.I.; Christie-Oleza, J.A.* 2020 Early colonization of weathered polyethylene by distinct bacteria in marine coastal seawater. Microbial Ecology, 79: 517–526. (IF: 3.4) Q1 D1
    11. Zadjelovic, V.; Gibson, M.I.; Dorador, C.; Christie-Oleza, J.A.* 2020 Genome of Alcanivorax sp. 24: A hydrocarbon degrading bacterium isolated from marine plastic debris. Marine Genomics, 49: 100686. (IF: 1.7) Q4
    12. Wright, R.J.; Gibson, M.I.; Christie-Oleza, J.A.* 2019 Understanding microbial community dynamics to improve optimal microbiome selection. Microbiome, 7 (1): 85. (IF: 11.6) Q1 D1
    13. Erni-Cassola, G.; Zadjelovic, V.; Gibson, M.I.; Christie-Oleza, J.A.* 2019 Distribution of plastic polymer types in the marine environment; a meta-analysis. J. of Hazardous Materials, 369: 691–698. (IF: 9.0) Q1 D1
    14. Michniewski, S.; Redgwell, T.; Grigonyte, A.; Rihtman, B.; Aguilo-Ferretjans, M.; Christie-Oleza, J.A.; Jameson, E.; Scanlan, D.J.; Millard, A.D. 2019 Riding the wave of genomics to investigate aquatic coliphage diversity and activity. Environmental Microbiology, 21 (6): 2112-2128. (IF: 4.9) Q1
    15. Zerfaß, C.; Christie-Oleza, J.A.; Soyer, O.S. 2019 Manganese oxide biomineralization provides protection against nitrite toxicity in a cell-density-dependent manner. Applied and Environmental Microbiology, 85 (2): e02129-18. (IF: 4.0) Q1
    16. Kaur, A.; Hernandez-Fernaud, J.R.; Aguilo-Ferretjans, M.M.; Wellington, E.M.; Christie-Oleza, J.A.* 2018 100 days of marine Synechococcus - Ruegeria pomeroyi interaction, a detailed analysis of the exoproteome. Environmental Microbiology, 20 (2):785-799. (IF: 5.1) Q1
    17. Christie-Oleza, J.A.*; Sousoni, D.; Lloyd, M.; Armengaud, J.; Scanlan, D.J. 2017 Nutrient recycling facilitates long-term stability of marine microbial phototroph-heterotroph interactions. Nature Microbiology, 2: 17100. (IF: 14.2) Q1 D1
    18. Erni-Cassola, G., Gibson, M.I., Thompson, R.C., Christie-Oleza, J.A.* 2017 Lost, but found with Nile Red: a novel method for detecting and quantifying small microplastics (1 mm to 20 μm) in environmental samples. Environmental Science & Technology, 51 (23): 13641-13648. (IF: 6.7) Q1 D1
    19. Christie-Oleza, J.A.*; Armengaud, J.; Guerin, P; Scanlan, D.J. 2015 Functional distinctness in the exoproteomes of marine Synechococcus. Environmental Microbiology, 17 (10): 3781-3794 (IF: 5.9) Q1
    20. Christie-Oleza, J.A.*; Scanlan, D.J; Armengaud, J. 2015 "You produce while I clean up", a strategy revealed by exoproteomics during Synechococcus-Roseobacter interactions. Proteomics, 15 (20): 3454-3462. (IF: 4.1) Q1
    21. Christie-Oleza, J.A.; Armengaud, J. 2015 Proteomics of the Roseobacter clade, a window to the marine microbiology landscape. Proteomics, 15 (23-24): 3928-3942. (IF: 4.1) Q1
    22. Bland, C.; Hartmann, E.M.; Christie-Oleza, J.A.; Fernandez, B.; Armengaud, J. 2014 N-Terminal-oriented proteogenomics of the marine bacterium Roseobacter denitrificans Och114 using N-succinimidyloxycarbonylmethyl)tris(2,4,6-trimethoxyphenyl) phosphonium bromide (TMPP) labeling and diagonal chromatography. Molecular & Cellular Proteomics, 13 (5): 1369-1381. (IF: 6.6) Q1 D1
    23. Durighello, E.; Christie-Oleza, J.A.; Armengaud, J. 2014 Assessing the exoproteome of marine bacteria, lesson from a RTX-toxin abundantly secreted by Phaeobacter strain DSM 17395. PLoS One, 9 (2): e89691. (IF: 3.2) Q1
    24. Hartmann, E.M.; Durighello, E.; Pible, O.; Nogales, B.; Beltrametti, F.; Bosch, R.; Christie-Oleza, J.A.; Armengaud, J. 2014 Proteomics meets blue biotechnology: A wealth of novelties and opportunities. Marine Genomics, S1874-7787 (14): 00042-7 (IF: 1.8) Q3
    25. Christie-Oleza, J.A.; Piña-Villalonga, J.M.; Guerin, P.; Miotello, G.; Bosch, R.; Nogales, B.; Armengaud, J. 2013 Shotgun nanoLC-MS/MS proteogenomics to document MALDI-TOF biomarkers for screening new members of the Ruegeria genus. Environmental Microbiology, 15 (1): 133-147. (IF: 6.2) Q1
    26. Christie-Oleza, J.A.; Miotello, G.; Armengaud, J. 2013 Proteogenomic definition of biomarkers for the large Roseobacter clade and application for a quick screening of new environmental isolates. J. Proteome Research, 12 (11): 5331-5339. (IF: 5.0) Q1
    27. Christie-Oleza, J.A.; Brunet-Galmés, I.; Lalucat, J.; Nogales, B; Bosch, R. 2013 MiniUIB, a novel minitransposon-based system for stable insertion of foreign DNA into the genomes of Gram-negative and Gram-positive bacteria. Applied and Environmental Microbiology, 79 (5): 1629-1638. (IF: 4.0) Q1
    28. Vázquez, S.; Nogales, B.; Ruberto, L.; Mestre, C.; Christie-Oleza, J.A.; Ferrero, M.; Bosch, R.; Mac Cormack, W.P. 2013 Characterization of bacterial consortia from diesel-contaminated Antarctic soils: towards the design of tailored formulas for bioaugmentation. International Biodeterioration & Biodegradation, 77: 22-30. (IF: 2.2) Q2
    29. Christie-Oleza, J.A.; Fernandez, B.; Nogales, B.; Bosch, R; Armengaud, J. 2012 Proteomic insights into the lifestyle of an environmentally relevant marine bacterium. ISME J., 6 (1): 124-135. (IF: 9.0) Q1 D1
    30. Christie-Oleza, J.A.; Pina-Villalonga, J.M.; Bosch, R.; Nogales, B.; Armengaud, J. 2012 Comparative proteogenomics of twelve Roseobacter exoproteomes reveals different adaptive strategies among these marine bacteria. Molecular & Cellular Proteomics, 11 (2): M111.013110. (IF: 7.3) Q1 D1
    31. Christie-Oleza, J.A.; Miotello, G.; Armengaud, J. 2012 High-throughput proteogenomics of Ruegeria pomeroyi: seeding a better genomic annotation for the whole marine Roseobacter clade. BMC Genomics, 13: Art.73. (IF: 4.4) Q1
    32. Armengaud, J.; Christie-Oleza, J.A.; Clair, G.; Malard, V.; Duport, C. 2012 Exoproteomics: exploring the world around biological systems. Expert Review of Proteomics, 9 (5): 561-575. (IF: 3.9) Q1
    33. Suarez-Suarez, L.Y.; Brunet-Galmes, I.; Piña-Villalonga, J.M.; Christie-Oleza, J.A.; Peña, A.; Bennasar, A.; Armengaud, J.; Nogales, B.; Bosch, R. 2012 Draft genome sequence of Citreicella aestuarii strain 357, a member of the Roseobacter clade isolated without xenobiotic pressure from a petroleum-polluted beach. J. Bacteriology, 194 (19): 5464-5465. (IF: 3.2) Q2


C.2. Research projects and grants

  • PID2019-109509RB-I00: New approaches for improving the biodegradation of plastics by marine microbes (polyDEmar). Ministerio de Ciencias, Innovación y Universidades (2020-2023). PI. 196,020¤, Spain.
  • RYC-2017-22452: Ramon y Cajal (2019-2024). Ministerio de Ciencias, Innovación y Universidades, Agencia Estatal de Investigación, European Social Fund and University of the Balearic Islands. PI (Independent Fellowship). 308.600¤, Spain.
  • NE/S005501/1: Microbial hitch-hikers of marine plastics: the survival, persistence & ecology of microbial communities in the 'Plastisphere'. NERC (2019-2023). PI at Warwick £600,090 (~684,100¤), UK. Project collaborator since Ramon y Cajal.
  • BB/M017982/1: Warwick Integrative Synthetic Biology Centre. BBSRC/EPSRC (2015-2020). Co-I (PI: Prof McCarthy). £13,488,965 (~15,377,400¤), UK.
  • CTM2015-70180-R: Caracterizacion fisiologica y proteogenomica de degradadores eficaces de hidrocarburos aromaticos del linaje Roseobacter. Ministerio de Educación y Ciencia (2016-2019). Team member (PI: Dr Bosch). 157.300¤, Spain.
  • NE/K009044/1: Eco-interactomics: From microbial interactions to the fate of dissolved organic matter in the oceans. NERC Independent Research Fellowship (2013-2018). PI (Independent Fellowship). £719,081 (~819,750¤), UK.
  • SLS Pump Priming: Important secondary metabolite produced by marine Synechococcus. University of Warwick (2017). PI. £5,000 (~5,700¤), UK.
  • SLS Pump Priming: Defining the right pipeline for proper metaproteomics. University of Warwick (2014). PI. £5,000 (~5,700¤), UK.
  • PIEF-GA-2010-272593: Do Synechococcus regulatory networks underpin marine ecological distinctness? FP7 Marie Curie Actions, IEF Fellowship (2011-2013). ¤209,593, UK.


C.3. Contracts

Ramon y Cajal. University of the Balearic Islands, Spain. 2019-2024

Assistant Professor. University of Warwick, UK. 2015–2019

NERC Independent Research Fellow. University of Warwick, UK. 2013–2018

IRF Marie Curie Research Fellow. University of Warwick, UK. 2011–2013

Ramon Areces Postdoctoral Research Fellow. CEA Marcoule, France. 2009–2011

Postdoctoral Researcher. University of the Balearic Islands, Spain. 2009


C.4. Patents  

Christie-Oleza J.A.; Brunet, I.; Lalucat, J.; Nogales, B.; Bosch, R. University Balearic Islands. Minitransposon miniUIB and its derived uses. Pub. No.: WO/2013/167784. International Application No.: PCT/ES2013/070294. 2013.


C.5. Others

Invited talks:

  • 2021 Invited speaker, SAMIGE and DIMAyA national conf., ARGENTINA (on-line)
  • 2021 Invited speaker, Microplastics workshop, Mallorca SPAIN (on-line)
  • 2021 Invited speaker, ICM - EMM seminar series, Barcelona SPAIN (on-line)
  • 2020 Invited speaker, Metagenomics seminar series, Alicante SPAIN (on-line)
  • 2019 Invited speaker, Metaproteomics Workshop, Sheffield UK
  • 2019 Invited speaker, FEMS International Meeting, Glasgow UK
  • 2019 Invited speaker, departmental seminar at the University of East Anglia, UK.
  • 2018 Invited speaker, ISME International Meeting, Leipzig Germany.
  • 2018 Invited keynote speaker, Roseobacter Symposium, Oldenburg Germany.
  • 2018 Invited speaker, departmental seminar at the University of Liverpool, UK.
  • 2017 Invited keynote speaker, Extremophile Workshop, University of Alicante, Spain.
  • 2015 Invited speaker, ASLO International Meeting, Granada, Spain.
  • 2013 Invited speaker, departmental seminar at the University of Essex, UK.
  • 2013 Invited speaker, EU project MaCuMBA, Biological Station Roscoff, France.
  • 2013 Invited speaker, Gordon Research Conf. Marine Molecular Ecology, Hong Kong.


Organization of R&D activities:

-           2017 Organising committee of the MMEG Meeting, Coventry UK

-           2017 Organising committee of CBNP Symposium XI, Coventry UK

-           2015 Organising and chairing session at ASLO-2015, Granada Spain

-           2011 Collaboration in the organization of SMAP-2011, Avignon France

-           2009 Collaboration in the organization of EC-US Working Group, Mallorca Spain


Academic positions of responsibility and management:

-        Associate Director of Undergraduate admissions. School of Life Sciences, University of Warwick (2017-2019).

-        Research Theme Leader in Environmental Bioscience. School of Life Sciences, University of Warwick (2017-2019).

-        Environment and Microbiology Seminar series. School of Life Sciences, University of Warwick (2013-2017).


Office Hours

You need to book a date with the professor in order to attend a tutoring session

Thesis advising

Thesis advisor during the academic year 2023-24 for the following PHD programmes:

Teaching, 5 previous years

Subject Information
11079 - Master's Thesis
  • Master's Degree in Advanced Microbiology2021-22
11087 - Environmental Biotechnology
11091 - Specialisation Seminars
21509 - Integrated Chemistry Laboratory II


Research groups

Group Membership type
Microbiology (Microbio) Member
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