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Recently defended

Judith van der Giessen

Defense Judith van der Giessen
Judith wears her Stroopwafel hat! (from left to right: Dr. Jana Milucka, Judith van der Giessen, Dr. Hannah Marchant, Dr. Ewa Burwicz-Galerne, Prof. Dr. Hans-Peter Grossart, Prof. Dr. Marcel Kuypers, Laura Przybylek) © MPIMM

Judith van der Giessen

Department: Biogeochemistry

Exam Date: Thursday, April 30, 2026

Topic of the dissertation:

"Aerobic methane production is dominated by microbial methylphosphonate utilization in phosphate-limited marine surface waters"

Jördis Stührenberg

Defense Jördis Stührenberg
Congratulations: Jördis hot her hat! (from left to right: Paul Mock, Dr. Hannah Marchant, Dr. Florence Schubotz, Prof. Dr. Marcel Kuypers, Jördis Stührenberg, Prof. Dr. Laura Lehtovirta-Morley, Dr. Solveig Büring, Prof. Dr. Gesine Mollenhauer) © MPIMM

Jördis Stührenberg

Department: Biogeochemistry

Exam Date: Thursday, April 23, 2026

Topic of the dissertation:

"Beyond ammonium: dissolved organic nitrogen utilization by marine nitrifiers"

Jeronimo Cifuentes

Defense Jeronimo Cifuentes
Congratulations: Jero got his hat! (from left to right: Sophia Fatima, Wilson Castillo, Luis Orellana, Jeronimo Cifuentes, Prof. Dr. Nicole Dubilier, Prof. A. Murat Eren, Prof. Dr. Tilmann Harder) © MPIMM

Jeronimo Cifuentes

Department: Symbiosis

Exam Date: Thursday, March 12, 2026

Topic of the dissertation:

"Within-species diversity of sulfur-oxidizing symbionts from deep-sea bathymodioline mussels"

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