antheridium

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an·ther·id·i·um

(an'ther-id'ē-um),
The male gametangium produced in the teleomorph part of the life cycle of fungi.
[Mod. L. anthera, flower, fr. G anthēros, blooming, fr. anthēo, to bloom, + dim. suffix -idium, fr. G. -idion]
Antheridiumclick for a larger image
Fig. 40 Antheridium . Generalized structure, longitudinal section.

antheridium

(pl. antheridia) the male sex organ of bryophytes, pteridophytes, algae and fungi.
References in periodicals archive ?
Rhaphidorrhynchium amoenum (pleurocarpous) Forest age Number of: 10 15 20 25 Stems examined 200 200 200 200 % fertile stems 65.5 82.5 75.5 55.5 % NE stems 34.5 17.5 24.5 44.5 Female stems 0 6 12 5 Male stems 0 9 6 5 Male & female stems 131 150 133 101 NE stems 69 35 49 89 Perichaetia 304 223 236 205 Perigonia 166 197 229 187 Ratio perichaetia:perigonia 1.8:1 1.13:1 1.03:1 1.09:1 Archegonia 93 138 75 224 Antheridia 285 91 338 72 Ratio archegonia:antheridia 1:3.1 1.5:1 1:4.5 3.1:1 Sporophytes 163 153 112 123 Fertile stems with sporophytes 131 165 151 111 b.
They were further examined for the number of antheridia and archegonia.
capsici such as globose oogonia with paragynous antheridia, chlamydospore, torulose hyphae and lemon shape of sporangia with long pedicels as described by Mchau and Coffey (1995).
capsici by producing globose oogonia with paragynous antheridia, chlamydospore, torulose hyphae and lemon shape of sporangia with long pedicels.
The gametophytes were used in sperm-release assays 12 days later, when numerous mature antheridia had been formed.
Antheridia are hemispheric to subglobose and develop on the abaxial surface of the cushion and wings of cordiform-spatulate gametophytes of A.
The asymmetrical antheridia, we consider it as a synapomorphy for Acrostichum (Stokey & Atkinson, 1952; Nayar & Kazmi, 1964; Nayar & Kaur, 1969, 1971; Lloyd & Gregg, 1975; Lloyd, 1980; Lloyd & Buckley, 1986).
Antheridia, antherozoids and chloroplasts of shield mature cells of Chara hydropitys.
The meristematic region, placed in the midrib of the gametophyte, and the antheridia are regularly free of infection.
The isolate is heterothallic forming aplerotic oospores, which measured 19.53 to 30.08 [micro]m in diameter (average 25.04 [micro]m) and amphigynous antheridia when paired with the mating type A1.
Antheridia appeared 46-51 days after sowing, in both irregular and cordate individuals with no archegonia, i.e.
5 pairs, contiguous, small, opposite bracts dorsally not overlapping, distal margins of bracts with a few broken teeth, bract cells [+ or -] similar to leaf cells; antheridia 1 per bract, antheridial stalk biseriate.