Fruit structure and some details of fruit morphogenesis in subfamily Tripterygioideae Loes. (Celastraceae R. Br.)статья
Статья опубликована в журнале из списка RSCI Web of Science
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из перечня ВАК
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 27 января 2018 г.
Аннотация:Fruit structure and morphogenesis in subfamily Tripterygioideae Loes. (Celastraceae R. Br.) are presented.
Fruits are either with 2, 3 or 5 lateral wings, nested along the fruit, or with one apical wing (on the fruit’s sides and its
apex). The wings are wide or narrow, membranous; the body of the fruit is shorter than its wings. The wings usually
possess a net of vascular bundle derivates. The topography of vascular bundles defines the way of pericarp expansion.
For all examined fruits style on the apex always remains. Peculiarities of pericarp structure and development suggest
morphogenetical type of the fruit in Tripterygioideae – pseudomonomerous unilocular one-seeded winged pyrenarium
with a pyrene, which can be formed by 3 to 5 layers of tangential elongated macrosclereids (in many examined taxa).
Fruit type of Ptelidium is uni- or bilocular and one(two)-seeded nut, because its pericarp is lignified entirely. Fruit of
Rzedowskia has only one layer of radially elongated sclereids in endocarp. Seeds of all examined species are small,
without aril. Two genera appeared to be more isolated – Ptelidium and Rzedowskia. All examined taxa have demonstrated
one special evolutional trend in common – the reduction of the number of seeds per fruit and the development
of wings as an adaptation to the dispersal by wind. According to the latest molecular data, such fruit types have been
formed in Celastraceae at least six times in the course of evolution.