gametangiumn.

Brit.

/ˌɡamᵻˈtan(d)ʒɪəm/, U.S.

/ˌɡæməˈtændʒiəm/

Inflections: Plural gametangia.

Forms: 1800s– gametange, 1800s– gametangium.

Origin: A borrowing from German. Etymon: German Gametangium.

Etymology: < German Gametangium (E. Strasburger 1877, in Bot. Zeitung 35 756) < Gamet gamete n. + -angium -angium comb. form.

Botany and Mycology.

A cell or organ in which gametes develop, found in fungi and algae and the gametophyte phase of bryophytes and ferns.When sexually differentiated, the male gametangium is frequently known as the antheridium, and the female the archegonium or oogonium.

ΚΠ

1878 Jrnl. Bot., Brit. & Foreign 16 57 For the swarm-spores the term ‘gametes’ is proposed, the spore being called a ‘gametangium’.

1889 A. W. Bennett & G. R. M. Murray Handbk. Cryptogamic Bot. 272 The conjugating bodies..are motile ciliated swarm-spores or zoogametes, produced by free-cell formation in ordinary or in slightly differentiated cells of the filament, hence termed gametanges, their conjugation resulting in the production of a zygosperm.

1904 G. S. West Treat. Freshwater Algæ 54 In isogamous reproduction [in green algae] the sexual organs are gametangia, usually giving rise to planogametes which conjugate and produce a zygospore.

1952 New Biol. 13 103 A transverse wall is formed a short distance behind each tip, so dividing each swollen branch into two portions, the distal portion being known as a gametangium.

1964 Oceanogr. & Marine Biol. 2 198 Gametangia have hitherto been unknown in the genus Udotea.

2011 K. Rogers Fungi, Algae, & Protists 40 Fungi in which a single individual bears both male and female gametangia are hermaphroditic fungi.

Derivatives

gameˈtangial adj. of, relating to, or bearing a gametangium or gametangia; of the nature of a gametangium.

ΚΠ

1890 Jrnl. Linn. Soc.: Bot. 25 367 The gametangial nature of the Chlorochytrium zoosporangium was discovered by Klebs.

1949 Science 22 July 87/2 There is no multicellular sexual plant, the zoospores from resistant sporangia becoming transformed directly into gametangial cysts.

1978 BioSystems 10 73/2 They show similarities to the Oomycetes in the involvement of gametangial fusion in sexual reproduction.

2000 J. M. Huisman Marine Plants Austral. 270/1 Individual thalli of Acetabularia have a central stalk bearing a cluster of gametangial rays that form the characteristic cup at the apex.

This entry has been updated (OED Third Edition, March 2013; most recently modified version published online March 2022).

单词	gametangium
释义	gametangiumn. Brit. /ˌɡamᵻˈtan(d)ʒɪəm/, U.S. /ˌɡæməˈtændʒiəm/ Inflections: Plural gametangia. Forms: 1800s– gametange, 1800s– gametangium. Origin: A borrowing from German. Etymon: German Gametangium. Etymology: < German Gametangium (E. Strasburger 1877, in Bot. Zeitung 35 756) < Gamet gamete n. + -angium -angium comb. form. Botany and Mycology. A cell or organ in which gametes develop, found in fungi and algae and the gametophyte phase of bryophytes and ferns.When sexually differentiated, the male gametangium is frequently known as the antheridium, and the female the archegonium or oogonium. ΚΠ 1878 Jrnl. Bot., Brit. & Foreign 16 57 For the swarm-spores the term ‘gametes’ is proposed, the spore being called a ‘gametangium’. 1889 A. W. Bennett & G. R. M. Murray Handbk. Cryptogamic Bot. 272 The conjugating bodies..are motile ciliated swarm-spores or zoogametes, produced by free-cell formation in ordinary or in slightly differentiated cells of the filament, hence termed gametanges, their conjugation resulting in the production of a zygosperm. 1904 G. S. West Treat. Freshwater Algæ 54 In isogamous reproduction [in green algae] the sexual organs are gametangia, usually giving rise to planogametes which conjugate and produce a zygospore. 1952 New Biol. 13 103 A transverse wall is formed a short distance behind each tip, so dividing each swollen branch into two portions, the distal portion being known as a gametangium. 1964 Oceanogr. & Marine Biol. 2 198 Gametangia have hitherto been unknown in the genus Udotea. 2011 K. Rogers Fungi, Algae, & Protists 40 Fungi in which a single individual bears both male and female gametangia are hermaphroditic fungi. Derivatives gameˈtangial adj. of, relating to, or bearing a gametangium or gametangia; of the nature of a gametangium. ΚΠ 1890 Jrnl. Linn. Soc.: Bot. 25 367 The gametangial nature of the Chlorochytrium zoosporangium was discovered by Klebs. 1949 Science 22 July 87/2 There is no multicellular sexual plant, the zoospores from resistant sporangia becoming transformed directly into gametangial cysts. 1978 BioSystems 10 73/2 They show similarities to the Oomycetes in the involvement of gametangial fusion in sexual reproduction. 2000 J. M. Huisman Marine Plants Austral. 270/1 Individual thalli of Acetabularia have a central stalk bearing a cluster of gametangial rays that form the characteristic cup at the apex. This entry has been updated (OED Third Edition, March 2013; most recently modified version published online March 2022). < n.1878
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