[The role of genetic control and self-assembly in gametophyte sporoderm ontogeny: hypotheses and experiment].
A review of our own and literature data on mechanisms of sporoderm development (of the wall of pollen grains and spores) is represented here in the light of colloidal relationships-so-called micellar hypothesis (Gabarayeva and Hemsley, 2006; Hemsley and Gabarayeva, 2007) which suggests the participation of self-assembly in development. The development of the exines (ofsporopollenin-containing part of the sporo- derm) in 5 species from remote taxa has been traced in detail and interpreted as a micellar sequence. The experimental modelling of exine-like structures, carried out in vitro where physico-chemical regularities of colloidal systems (hydrophobic relationships) were the driving motive, is a strong evidence of the relevance of the micellar hypothesis and emphasizes a promising character of these studies. The correlation between ge- nomic control and self-assembly in arrangement of complex biological walls is discussed.
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Gabaraeva
D008954:Models, Biological; D018521:Plant Physiological Phenomena / Q000235:genetics*; D010944:Plants / Q000196:embryology / Q000235:genetics / Q000648:ultrastructure; D011058:Pollen / Q000196:embryology / Q000235:genetics / Q000648:ultrastructure