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Ultrastructural and cytochemical study of spermatogenesis in Scrobicularia plana (Mollusca, Bivalvia).
The ultrastructure of the mature spermatozoa and spermatogenesis of the bivalve Scrobicularia plana are described. Support cells extend from the basal lamina to the lumen of the testis and areExpand
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A revised description of Haplosporidium armoricanum, parasite of Ostrea edulis L. from Galicia, northwestern Spain, with special reference to the spore-wall filaments
Abstract Haplosporidian spores from Ostrea edulis, previously described as Minchinia armoricana, were reexamined by light and electron microscopy. These spores were either free among host cells orExpand
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Fine structure of spermiogenesis with special reference to the spermatid morulae of the freshwater mussel Prisodon alatus (Bivalvia, Unionoidea)
Within the testicular cysts of the mussel Prisodon alatus are numerous somatic host cells described as Sertoli cells (SC), each containing a variable number of young spermatid morulae. Among them,Expand
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Requirement for sialic acid on neutrophils in a GMP-140 (PADGEM) mediated adhesive interaction with activated platelets.
Platelet GMP-140, along with ELAM-1 and gp90MEL, comprise the LEC-CAM family of cell-cell adhesion proteins. The three proteins demonstrate a highly related domain organization, which includes anExpand
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Branchial rickettsia-like infection associated with clam Venerupis rhomboides mortality
A histopathological survey was performed to search for the cause of high mortality of the clam Venerupis rhomboides (Pennant) in exploited beds of the Ensenada de Riveira (Ria de Arousa, Galicia, NWExpand
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Fine structure of zoosporulation in Perkinsus atlanticus (Apicomplexa: Perkinsea).
Light and transmission electron microscopy were used to study different stages of Perkinsus atlanticus (Apicomplexa) during induced zoosporulation, with fluid thioglycollate medium and seawater.Expand
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Ultrastructural aspects of the sporogony of Aggregata octopiana (Apicomplexa, Aggregatidae), a coccidian parasite of Octopus vulgaris (Mollusca, Cephalopoda) from NE Atlantic Coast
Summary Scanning and Transmission Electron Microscopy, and Atomic Force Microscopy techniques were used to study different topographic and cytological aspects of the architecture of the sporogonialExpand
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Light and ultrastructural data on Henneguya testicularis n. sp. (Myxozoa, Myxobolidae), a parasite from the testis of the Amazonian fish Moenkhausia oligolepis
Light and electron microscopical data on a myxosporidian found in the testis of Moenkhausia oligolepis Gunther (Teleostei, Characidae, Tetragonopterinae) from the lower Amazon River near Belém,Expand
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Myxobolus desaequalis n. sp. (Myxozoa, Myxosporea), Parasite of the Amazonian Freshwater Fish, Apteronotus albifrons (Teleostei, Apteronotidae)
Abstract Myxobolus desaequalis n. sp. is described from the gill lamellae of the freshwater fish Apteronotus albifrons, collected in the Amazon River, near the city of Salvaterra, Brazil. LargeExpand
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