Dynamic responses to silicon in Thalasiossira pseudonana - Identification, characterisation and classification of signature genes and their corresponding protein motifs.

ABSTRACT: The diatom cell wall, or frustule, is a highly complex, three-dimensional structure consisting of nanopatterned silica as well as proteins and other organic components. While some key components have been identified, knowledge on frustule biosynthesis is still fragmented. The model diatom Thalassiosira pseudonana was subjected to silicon (Si) shift-up and shift-down situations. Cellular and molecular signatures, dynamic changes and co-regulated clusters representing the hallmarks of cellular and molecular responses to changing Si availabilities were characterised. Ten new proteins with silaffin-like motifs, two kinases and a novel family of putatively frustule-associated transmembrane proteins induced by Si shift-up with a possible role in frustule biosynthesis were identified. A separate

SUBMITTER: Brembu T 

PROVIDER: S-EPMC5501833 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature