conceptacle


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conceptacle

(kən-sĕp′tə-kəl)
n.
One of many specialized hollow chambers containing reproductive structures that appear as dark, dotlike bodies on the surface of receptacles in certain algae and fungi.

conceptacle

the cavity which contains the sex organs in some species of brown algae, e.g. Fucus.
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In the present study, the effect of grazing refuges was clearly visible on some specimens of the fruticose Mesophyllum printzianum, where pockets of diatoms proliferated in the narrow gaps between protruberances or the sunken pore plates of conceptacles (Fig.
The number of conceptacles per crust, either intact or eroded, was not significantly different among treatments (ANOVA, intact: [F.sub.2] = 0.29, P = 0.74; eroded: [F.sub.2] = 0.15, P = 0.86, Fig 6A, Table 4).
We did not count the number of spores within the conceptacles; however, the presence of healthy, reproductive structures suggests that the alga is able to produce spores with potential to settle and recruit onto the experimental panels, as suggested for a number of macroalgal species (Santelices, 1990).
Tetrasporangial conceptacles hemispherical, 50 [micro]m in diam., with a central pore.
Tetrasporangial conceptacles 150-250 [micro]m in diam., with a central apical pore.
The number of conceptacles, total number of oogonia, and the number of mature oogonia were determined from 10 to 12 sections ([approximately]0.5 mm) per receptacle.

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