Background and activities

Characteristic for diatoms are their ability to create hierarchically nano- and micropatterned siliceous frustules. Exactly how silica polymerization and nanopatterning takes place inside the silica deposition vesicle (SDV) of diatoms is still largely unknown. A previous transcriptome study from our lab revealed a family of previously uncharacterized diatom-specific transmembrane proteins related to Silicanin-1, the first protein to be localized in the SDV membrane. We hypothesized that the Silicanin family is associated with the SDV membrane and is likely involved in silica biomineralization of the diatom frustule. A possibility is that Silicanins interact with the cytoskeleton through adapter proteins. By knocking out members of the Silicanin family in the diatoms Phaeodactylum tricornutum and Thalassiosira pseudonana we can further investigate the role of Silicanins and look at the effects on frustule patterning and structure.

Scientific, academic and artistic work

Displaying a selection of activities. See all publications in the database

Journal publications


  • Brembu, Tore; Messemer, Annika; Hafskjold, Marthe; Winge, Per; Vadstein, Olav. (2019) Analysis of short-term transcriptome responses to silicon addition in Thalassiosira pseudonana. The molecular life of diatoms 2019 . EMBO; Norwich. 2019-07-15 - 2019-07-18.
  • Grønbech Hafskjold, Marthe Caroline; Messemer, Annika; Brembu, Tore; Winge, Per. (2019) How to build a glass house: Revealing fundamental components of diatom cell wall biomineralization. The molecular life of diatoms ; 2019-07-14 - 2019-07-18.
  • Messemer, Annika; Grønbech Hafskjold, Marthe Caroline; Winge, Per; Vadstein, Olav; Brembu, Tore. (2019) Functional studies of a diatom-specific cell wall synthesis protein. 7th European Phycological Congress . Federation of European Phycological Societies; Zagreb. 2019-08-25 - 2019-08-30.
  • Nymark, Marianne; Winge, Per; Bones, Atle M.; Volpe, Charlotte; Grønbech Hafskjold, Marthe Caroline. (2019) Strain optimization of the marine diatom Phaeodactylum tricornutum. BIOPROSP_19 . Tekna; Tromsø. 2019-02-25 - 2019-02-27.
  • Nymark, Marianne; Volpe, Charlotte; Hafskjold, Marthe; Winge, Per; Sharma, Amit Kumar; Chauton, Matilde Skogen; Vadstein, Olav; Bones, Atle M.. (2018) Genredigering av marine mikroalger - Kan endringer av algenes lyshøstingsegenskaper øke produktiviteten?. HAVBRUK 2018 . Forskningsrådet i samarbeid med Fiskeri- og havbruksnæringen; Oslo. 2018-04-18 - 2018-04-20.