oogonium

[ oh-uh-goh-nee-uh m ]

/ ˌoʊ əˈgoʊ ni əm /

one of the undifferentiated germ cells giving rise to oocytes.

the one-celled female reproductive organ in certain thallophytes, usually a more or less spherical sac containing one or more eggs.

Origin of oogonium

From New Latin, dating back to 1865–70; see origin at oo-, -gonium

o·o·go·ni·al, adjective

oof, oogamete, oogamous, oogamy, oogenesis, oogonium, ooh, ookinesis, ookinete, ookpik, oolachan

The Peronosporaceae reproduce themselves sexually by means of antheridia and oogonia as described in Pythium.

Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 |Various
Mycelium present; antheridia but no antherozoids; oogonia with one or more oospheres: Peronosporaceae, Saprolegniaceae.

Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 |Various
De Bary has claimed for the oogonia in Cystopus and Peronospora a kind of fecundation which deserves mention here.

Fungi: Their Nature and Uses |Mordecai Cubitt Cooke
Sexual reproduction by oogonia and antheridia; asexual reproduction by zoospores or conidia.

Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 |Various

These escape and float passively away when the wall of the oogonia ruptures.

The Sea Shore |William S. Furneaux

oogonium

/ (ˌəʊəˈɡəʊnɪəm) /

an immature female germ cell forming oocytes by repeated divisions

a female sex organ of some algae and fungi producing female gametes (oospheres)

oogonial, adjective

oogonium

[ ō′ə-gō′nē-əm ]

The primitive egg mother cell from which the oocytes develop.

o′o•go′ni•al (-nē-əl) adj.

oogonium

[ ō′ə-gō′nē-əm ]

A female reproductive structure in certain algae and fungi. It is usually a rounded cell or sac containing one or more oospheres.

A cell that arises from a primordial germ cell and differentiates into an oocyte in the ovary of female animals.