sporangial การใช้

• IgG to an inner wall antigen expressed only during the mature sporangial stage.
• The sporangial cytoplasm divides into many minute zoospores which after their release subsequently infect new hosts.
• On the sporophores are the sporangial clusters with sporangia in two rows, all embedded in compact, linear spikes.
• Distinctive characteristics of this species include brown-spotted sporangial walls and megaspores with highly reticulate ridges, producing a spiny effect.
• Plants in this genus superficially resemble " Cheilanthes ", but the sporangial structure indicates their close affinity to " Anemia ".
• This genus was originally included in the related genus " Lycopodium ", from which it differs in having undifferentiated sporangial leaves, and the sporangia not formed into apical cones.
• The sporangial or aethalial phase of this slime mould is spherical, elongate or globular, 50 to 80 mm, and is at first highly glutinous in appearance, resembling small slug eggs.
• This dehiscence causes the cells to shrink and a contraction and straightening of the annulus ring, eventually rupturing the sporangial wall by ripping apart thin-walled lip cells on the opposite side of the sporangium.
• The internal structure of stems and the presence of lateral two-valved sporangia are indicators of a relationship with the zosterophylls, although evidence is lacking for the distinct sporangial stalks which would be expected of this group.
• The plasmodium may move some distance before forming the aethalium or sporangial phase, of an equal size, 4 30 cm in its longest dimension, 5 15 mm thick, carried upon a widespread, silvery, shining hypothallus, purplish black.
• Although the general shape of the sporangia resembles that of zosterophylls, " Hollandophyton " sporangia lack the thickened edges of the sporangial'valves'which are characteristic of species assigned to this group, such as " Zosterophyllum llanoveranum " or " Ventarura lyonii ".
• Hueber considered the differences in sporangial shape were caused by compression and that the other differences were too small to warrant a different species; A third possible species was discovered in sediments from Bathurst Island, Nunavut, Canada, from the Late Silurian ( Ludfordian, ); it was not assigned a species name as poor preservation obscured the sporangial shape.
• Hueber considered the differences in sporangial shape were caused by compression and that the other differences were too small to warrant a different species; A third possible species was discovered in sediments from Bathurst Island, Nunavut, Canada, from the Late Silurian ( Ludfordian, ); it was not assigned a species name as poor preservation obscured the sporangial shape.