Chalazogamy
Chalazogamy Chal`a*zog"a*my, n. [Chalaza + -gamy, as in polygamy.] (Bot.) A process of fecundation in which the pollen tube penetrates to the embryosac through the tissue of the chalaza, instead of entering through the micropyle. It was originally discovered by Treub in {Casuarina}, and has since been found to occur regularly in the families {Betulace[ae]} and {Juglandace[ae]}. Partial chalazogamy is found in {Ulmus}, the tube here penetrating the nucleus midway between the chalaza and micropyle. -- {Chal`a*zo*gam"ic}, a. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • chalazogamy — ˌkaləˈzägəmē noun ( es) Etymology: International Scientific Vocabulary chalaz (from New Latin chalaza) + o + gamy; probably originally formed as French chalazogamie : a process of fertilization in which the pollen tube penetrates to the embryo… …   Useful english dictionary

  • chalazogamy — chal·a·zog·a·my …   English syllables

  • Chalazogamic — Chalazogamy Chal a*zog a*my, n. [Chalaza + gamy, as in polygamy.] (Bot.) A process of fecundation in which the pollen tube penetrates to the embryosac through the tissue of the chalaza, instead of entering through the micropyle. It was originally …   The Collaborative International Dictionary of English

  • Chalaza — The chalaza (  /kəˈl …   Wikipedia

  • porogamy — pōˈrägəmē noun ( es) Etymology: International Scientific Vocabulary poro + gamy; probably originally formed in German : entrance of the pollen tube in a seed plant through the micropyle compare chalazogamy * * * porogamy /pör or pōr ogˈə mi/… …   Useful english dictionary

  • reproductive system, plant — Introduction       any of the systems, sexual or asexual, by which plants reproduce. In plants, as in animals, the end result of reproduction is the continuation of a given species, and the ability to reproduce is, therefore, rather conservative …   Universalium

  • χαλαζογαμία — η, Ν βοτ. μέθοδος γονιμοποίησης στα σπερματόφυτα κατά την οποία ο γυρεοσωλήνας φθάνει στον σπερματικό πυρήνα όχι μέσω τής μικροπύλης τής σπερμοβλάστης αλλά διά μέσου τού πλακούντα και τής χάλαζας. [ΕΤΥΜΟΛ. Αντιδάνεια λ., πρβλ. αγγλ. chalazogamy… …   Dictionary of Greek

  • chalazogamic — /kəl az ō gamˈik/ adjective • • • Main Entry: ↑chalazogamy …   Useful english dictionary

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