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Cutinsomes of Malus Mill. (Rosaceae) leaf and pericarp: genesis, localization, and transportстатья
Информация о цитировании статьи получена из
Scopus
Дата последнего поиска статьи во внешних источниках: 22 мая 2024 г.
- Авторы: Kumachova Tamara Kh, Voronkov Alexander S.
- Журнал: Micron - Journal, Elsevier
- Год издания: 2024
- Первая страница: 1
- Последняя страница: 10
- DOI: 10.1016/j.micron.2024.103657
- Аннотация: New data were obtained on specific bionanostructures, cutinsomes, which are involved in the formation of cuticles on the surface of leaf blades and pericarp Malus domestica Borkh. (Malus Mill., Rosaceae) introduced to the mountains at the altitudes of 1500 and 1700 m above sea level. Cutinsomes, which are electron-dense structures of spherical shape, have been identified by transmission electron microscopy. It was demonstrated that plastids can be involved in the synthesis of their constituent nanocomponents. The greatest number of nanoparticles was observed in the granal thylakoid lumen of the chloroplast in palisade mesophyll cells and pericarp hypodermal cells. The transmembrane transport of cutinsomes into the cell wall cuticle proper by exocytosis has been visualized for the first time. The plasma membrane is directly involved in the excretion of nanostructures from the cell. Nanoparticles of cutinsomes in the form of necklace-like formations line up in a chain near cell walls, merge into larger conglomerates and are loaded into plasmalemma invaginations, and then, in membrane packing, they move into the cuticle, which covers both outer and inner cell walls of external tissue. The original materials obtained by us supplement the ideas about the non-enzymatic synthesis of cuticle components available in the literature and expand the cell compartment geography involved in this process.
- Добавил в систему: Кумахова Т.Х.