In Memory of Marianne Hielm Pedersén
Professor Emerita Marianne Hielm Pedersén has passed away at the age of 90. She began her scientific career at Uppsala University and was for many years active in the research environment that today forms part of the Department of Ecology, Environment and Plant Sciences (DEEP). Through her research, mentorship, and international collaborations, she left a lasting impact on the fields of algal biology and marine botany.
Marianne Hielm Pedersén. Foto: privat
Marianne Hielm Pedersén published her first scientific paper in Nature in 1968 and went on to build a successful research group in Uppsala, bringing together doctoral students, postdoctoral researchers, and visiting scientists. Her research ranged from fundamental studies of algal physiology and metabolism to applied projects on topics such as algal biodiversity and water purification.
She was also a highly valued mentor, entrepreneur, and role model for generations of researchers. Marianne Hielm Pedersén’s contributions to botanical and marine research will continue to live on through the many colleagues, students, and research environments she inspired.
Last updated: 2026-09-03
Source: Department of Environmental Science,Department of Ecology, Environment and Plant Sciences