seemnealgmes paiknev emasgametofüüt, sisaldab tavaliselt seitse rakku (3 antipoodi, 2 sünergiidi, tsentraal- ja munaraku) kokku kaheksa tuumaga
The megagametophyte in seedlings, contains usually only seven cells (3 antipodals, 2 synergids, an egg cell and a central cell. Central cell contains two nuclei. After the double fertilization the egg will develop into the embryo and centrall cell into the endosperm.
Hea teada
Tsentraalrakk sisaldab kaks tuuma. Pärast kahekordset viljastamist areneb katteseemnetaimede munarakust embrüo ja tsentraalrakust endosperm.
