Open AccessThe regular surface layer of Acetogenium kivui : some structural, developmental and evolutionary aspects
Author(s) -
Rasch M.,
Saxton W.O.,
Baumeister W.
Publication year - 1984
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1984.tb01321.x
Subject(s) - crystallite , layer (electronics) , similarity (geometry) , evolutionary biology , structural similarity , biology , surface (topology) , surface layer , electron microscope , convergent evolution , surface structure , crystallography , biological system , chemical physics , materials science , chemistry , nanotechnology , geometry , phylogenetics , physics , optics , mathematics , genetics , computer science , image (mathematics) , artificial intelligence , biochemistry , gene
The structure of the regular surface layer of Acetogenium kivui has been investigated by electron microscopy in conjunction with image processing techniques. From the averaged unit cell structure a tentative model of the subunit organization is derived. The occurrence of mono‐ and polycrystalline S‐layer sheets is interpreted in terms of transitions related to the growth cycle of cell. The question is raised as to whether the striking structural similarity of S‐layers, even from evolutionary rather distant species, is due to divergent or convergent evolution.