FINE STRUCTURE OF MATURE GAMETES OF HAEMOPROTEUS COLUMBAE KRUSE
FINE STRUCTURE OF MATURE GAMETES OF HAEMOPROTEUS COLUMBAE KRUSE
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DOI：
10.1111/j.1550-7408.1968.tb02092.x
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发表时间：
1968-01-01
期刊：
影响因子：
--
通讯作者：
TRAGER, W
中科院分区：
文献类型：
--
作者：
BRADBURY, PC;TRAGER, W
The filiform microgamete of H. columbae consists of an elongate double-walled nucleus paralleled by 2 axonemes embedded in a homogeneous matrix. At one end of the gamete, the axonemes are sharply flexed back on themselves, but no conventional kinetosome has been recognized. No mitochondria have been seen. Single-walled vesicles occur in the matrix, and the entire gamete is surrounded by a single membrane. The large round macro-gamete has a conspicuous central nucleus with its outer membrane drawn out into anastomosing evaginations which extend to the periphery of the cell. A moderately electron dense material fills the space between the 2 nuclear membranes and the lumina of the evaginations. Nucleolar material may occur in scattered masses within the nucleus. One or 2 axonemes appear to arise endogenously next to the nuclear membrane. The cytoplasm is filled with ribosomes and perhaps glycogen granules. Typical protozoan mitochondria and vesicles containing pigment retained from the erythrocytic stage are found in the peripheral cytoplasm. Accumulations of dense-walled vesicles occur in the cytoplasm in conjunction with evaginations of the nuclear membrane. Amide these vesicles triple-ringed discs resembling the cytostomes of merozoites are frequently seen. Several distinct layers of dense material surround the macrogamete.
