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Giant Chromosomes in Protozoa
So far as we know polytene chromosomes have been previously observed only as typical structures in the salivary gland cells of Diptera, and in certain plant cells. By using orcein we have been ableExpand
  • 36
Inhibition of the degranulation and myeloperoxidase activity of human polymorphonuclear neutrophils by Brucella melitensis.
The degranulation and myeloperoxidase-H2O2-halide activities of human polymorphonuclear leukocytes from healthy donors were tested after co-incubation with either Brucella melitensis 16M,Expand
  • 13
Induced Autogamy in 2 Species of Stylonychia
SYNOPSIS By using the split-pair method autogamy was induced in Stylonychia mytilus Ehrenberg and S. muscorum Kahl, and the process was thoroly studied in the former. The pairs split early inExpand
  • 7
Ultrastructure of the macronuclear anlage in Stylonychia mytilus.
Abstract The development of the macronuclear anlage of Stylonychia mytilus was studied by means of electron and light microscopy of some timed stages following conjugation. In the 16-h-old anlage,Expand
  • 9
Phagocytic activity of three Naegleria strains in the presence of erythrocytes of various types.
The phagocytic activities of N. lovaniensis (Aq/9/1/45D) and N. gruberi (1518/1f and 1518/1e) were studied in the presence of erythrocytes of various species: chicken, rabbit, goat, and human (A+,Expand
  • 6
Conjugation in Stylonychia muscorum Kahl
SYNOPSIS. The process of conjugation in a strain of Stylonychia muscorum Kahl is described. It follows the general pattern reported earlier in other Oxytrichidae, but the following peculiarities canExpand
  • 10
Differentail nuclear coloration in ciliates.
  • P. Alonso
  • Biology, Medicine
  • The Journal of protozoology
  • 1 November 1974
SYNOPSIS. Application of the triple stain of Grosso (methyl green-pyronin-orange G) to the exconjugants of different species of ciliates produces a differential coloration of their nuclei. Both theExpand
  • 4
ABSTRACT A bioassay is described for the examination of toxic substances in water using Tetrahymena pyriformis W as test organism. The results obtained for different phenolic compounds are reported.
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