单词 | progametangium |
释义 | > as lemmasprogametangium progametangium n. Brit. /ˌprəʊɡamᵻˈtan(d)ʒɪəm/ , U.S. /ˌproʊˌɡæməˈtændʒiəm/ (plural progametangia) Mycology a swollen, lateral branch of a hypha in a fungus of the order Mucorales, lying in contact with a similar structure of the opposite mating strain, which develops into a gametangium and its supporting structure.ΚΠ 1890 Cent. Dict. Progametangium, an immature or resting gametangium. 1955 G. M. Smith Cryptogamic Bot. (ed. 2) xi. 413 Hyphae of both sexes produce short side branches (progametangia) whose distal ends are inflated and densely filled with protoplasm. 1984 J. W. Deacon Introd. Mod. Mycol. (ed. 2) 16 As two fertile branches (zygophores) approach one another they delimit progametangia at their ends. On meeting these differentiate into gametangia and subterminal suspensors. < as lemmas |
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