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Underlying mechanisms of development: pollen wall ontogeny in Chloranthus japonicus and a reconsideration of pollen ontogeny in early-diverging lineages of angiospermsстатья
- Авторы: Gabarayeva N.I., POLEVOVA S.V., GRIGORJEVA V.V., HISCOCK S.J.
- Журнал: Botanical Journal of the Linnean Society
- Год издания: 2021
- Издательство: Blackwell Publishing Inc.
- Местоположение издательства: United Kingdom
- DOI: 10.1093/botlinnean/boaa102/6105866
- Аннотация: Despite the large amount of knowledge accumulated, a precise understanding of the morphogenesis of theintricate and complex pollen walls (exines) is incomplete. A new factor (simple physico-chemical interactions) is shown to be involved in exine development. The stages of exine development in many species show remarkable similarity with successive micellar self-assembling mesophases of a colloidal system. Currently, > 100 genes have been reported to play a role in exine deposition, but nothing contradicts the view that specific patterns of exines are based on physico-chemical principles of space-filling operations taking place after genomic control of the concentrations of the source materials. On the examples of Chloranthus japonicus, magnoliids and other early-diverging angiosperms we show that exine development unfolds by two physico-chemical processes (phase separation and self-assembly) after genomic control, revealing an interplay between genomic and physical processes.
- Добавил в систему: Полевова Светлана Вячеславовна