| 释义 |
chalazogamic, a. Bot.|ˌkæləzəʊˈgæmɪk|
[ad. F. chalazogame (M. Treub 1891, in Ann. Jardin Bot. de Buitenzorg X. 219), f. Gr. χάλαζα chalaza + γάµος marriage + -ic.]
Defining fertilization in which the pollen-tube penetrates the ovule by the chalaza. Hence ˈchalazogam, a plant characterized by this mode of fertilization; chalaˈzogamy, chalazogamic fertilization.
1894Times 11 Aug. 11/3 Miss Benson read a paper upon ‘Chalazogamic Amentiferæ’..showing that..the pollen-tube forces its way through the chalaza in order to effect fertilization, and hence must be included among the group of chalazogams... Professor Vines..was inclined to regard chalazogamy as an adaptation. 1895[see porogamic a.]. 1898H. C. Porter tr. Strasburger's Text-bk. Bot. ii. ii. 492 According to recent investigations some undoubted Amentaceae are also chalazogamic. 1902Encycl. Brit. XXV. 436 The pollen-tube..may pierce the embryo-sac at the chalazal end or at the side (basigamy or chalazogamy). |