Download Comparative Pathobiology: Volume 2 Systematics of the by Victor Sprague (auth.), Lee A. Bulla Jr., Thomas C. Cheng PDF

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By Victor Sprague (auth.), Lee A. Bulla Jr., Thomas C. Cheng (eds.)

Volume of this sequence is a finished overview of the present wisdom of microsporidian taxonomy. it's a complement to quantity person who offers with the biology of the microsporidia. jointly, they supply the broadest attainable insurance of this staff of microorganisms that has acquired significant recognition due to their significance in invertebrate and vertebrate illness. quantity comprises the main entire released checklist of micro­ sporidian species, outlines their class and phylogeny, and offers a zoological distribution. the motive force in compiling all of this knowledge used to be Victor Sprague of the collage of Maryland. Dr. Sprague has spent his medical profession discovering many various points of micro sporidia and no different individual is thought of as professional as he. definitely, the wealth of data contgined herein can't be chanced on in different places in any unmarried insurance. for this reason, the publi­ cation of Volumes one and units a milestone for microspori­ diology and it truly is our desire that the readers of those volumes will proportion the passion of the authors and participants and may attain wealthy gift from their particular and profound perception. Lee A. BuZZa~ Jr.

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Example text

The class MICROSPOREA now contains 2 orders, CHYTRIDIOPSIDA, characterized by poor development of certain spore organelles, and the old MICROSPORIDIA. In the latter some new subdivisions are proposed. In an Appendix, the Collective Group ~oroBporidium is added to provide a convenient means for temporarily disposing of species that are too poorly known to permit their assignment to genera. " A few highly speculative comments on the phylogeny are made. It is suggested that the early ancestors were unspecialized forms, consisting of plasmodia and simple cells, with reproduction by multiple fission.

184) after commenting on the inappropriateness of other generic names that had been used for the pebrine organism and related forms. Microsporidium is actually a synonym of Nosema~ since it was first used in combination with the specific name of the type species of Nosema~ the only microsporidian species that had been named. I can find nothing in the Code to suggest that this fact renders it unavailable as a collective group name. " Microsporidium is particularly suitable for a collective group name and seems to have been used this way several times.

Metchnikovella schereschevskaiae Stubblefield, 1955 Microsporidyopsis nereidis Schereschewsky, 1925, Arch. Russe. Protist. Moscow, 3, 144, Figs. 1-13. Metchnikovella scherschevskaiae Stubblefield, 1955, J. , 41, 445. Vivier, 1975, Protisto1ogica, 11, 353. Host and Site: [GREGARINIDA] Dolyocystis sp. ; cytoplasm. SPRAGUE Vegetative Stages: There are said to be some spherical bodies that unite in pairs to form cysts. 5-4 ~m, with a chromophilic mass at one end, containing 8-12 spores. 6 ~m, with a large vacuole and a chromatic mass in the shape of a skull cap.

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