| 释义 |
metaxenia Bot.|mɛtəˈziːnɪə|
[f. meta- + xenia.]
(See quots.)
1928W. T. Swingle in Jrnl. Heredity XIX. 263/1 In order to be able to refer to this newly discovered action of pollen on the ovarial tissues of the mother plant..I proposed at Phoenix, Arizona, in February, 1926, the term metaxenia to designate the action of the male parent on tissues of the mother plant outside of the embryo and endosperm. The term metaxenia is formed..by analogy with the term xenia which denotes the influence exerted by the male parent on the endosperm of the seed. 1949Darlington & Mather Elem. Genetics 426 Xenia, the effect of more distantly related, as contrasted with more closely related, pollen on the maternal tissue of a fruit... Metaxenia has been used for true xenia. 1973Proctor & Yeo Pollination of Flowers xi. 351 The pollinations which produce larger seeds yield dates with more flesh (i.e. maternal tissue), the pollen having influenced the flesh indirectly (‘metaxenia’) through its direct genetic effect (xenia) on the seed. |