Some properties of crystalline inclusion bodies in oocytes ofRana temporaria andRana esculenta

1972 ◽  
Vol 28 (1) ◽  
pp. 66-67 ◽  
Author(s):  
U. M. Spornitz
1976 ◽  
Vol 86 (3) ◽  
pp. 266-269 ◽  
Author(s):  
F. J. Föglein ◽  
Á. Nyitrai ◽  
A. Gulyás ◽  
G. Premecz ◽  
T. Oláh ◽  
...  

1980 ◽  
Vol 26 (4) ◽  
pp. 486-491 ◽  
Author(s):  
Donovan E. Johnson ◽  
Debra M. Niezgodski ◽  
George M. Twaddle

Six oligosporogenic (Spo−) mutant strains of Bacillus thuringiensis were selected from survivors of treatment with N-methyl-N′-nitro-N-nitrosoguanidine. Each strain was blocked at or before stage II of spore development, but all produced typical bipyramidal-shaped crystalline inclusion bodies. Toxicity of the parasporal endotoxin isolated from the mutant strains was assayed by an in vitro technique using cultured insect cells, and was comparable with that of normal wild-type parasporal protein. Multiple parasporal inclusion bodies per cell were often produced, and smaller embedded particles were numerous and distinct.


Development ◽  
1978 ◽  
Vol 44 (1) ◽  
pp. 31-43
Author(s):  
Joseph C. Daniel ◽  
John R. Kennedy

Crystalline inclusion bodies (CIB) may be found as prominent ultrastructural components of the trophoblast cells of rabbit blastocysts and of progestational uterine endometrium. In the work reported here we have sought to describs developmental steps in crystal formation, to correlate these events with embryonic age and to determine if the uterus is essential (either as a source or an environment) for crystal formation in the embryo. CIB, which are of a size and periodicity to make them appear to be clusters or packages of microtubules, are first detectable in embryos 4 days 6 h post coitum and by 4½ days are well established in significant numbers. Another structural component, granular vesicles, may bs seen in embryos as early as 2½ days post coitum, and decrease in number during the same time the CIB are increasing. We believe that the CIB originate from the pre-existing granular vesicles and present electron micrograph evidence of crystal formation progressing from such vesicles. CIB formation does not occur in 4½- to 5-day-old embryos which have been lockedin the oviduct by a suture around the utero-tubal junction. However, when such tube-locked embryos are transplanted into the uterus, they develop crystals within 36 h thereafter.We conclude that the uterus is essential for CIB formation to occur in the rabbit embryo.


Parasitology ◽  
1954 ◽  
Vol 44 (1-2) ◽  
pp. 71-80 ◽  
Author(s):  
Kenneth M. Smith ◽  
N. Xeros

In 1915 Glaser demonstrated for the first time that a nuclear polyhedrosis of a lepidopterous larva (Lymantria dispar), was induced by an invisible filterable virus isolated from the blood of diseased larvae. Nuclear polyhedroses of the larvae of over a 100 insect species are now known, and those of them which have been investigated have been shown to be due to viruses. In these polyhedroses the nuclei of susceptible cells, hypodermis, tracheae, fat and blood cells, etc., enlarge and become packed with infectious crystalline inclusion bodies, the polyhedra, from which the diseases get their name. The pupae and imagos of these insects are not generally susceptible to polyhedral virus diseases, and so far no nuclear polyhedrosis of imaginal tissues in the larvae has been reported. This has led to the suggestion that imaginal tissues are not susceptible to polyhedral virus diseases.


2016 ◽  
Vol 55 (4) ◽  
pp. 369-373 ◽  
Author(s):  
Yuan-da Wang ◽  
Zhe-yi Dong ◽  
Xue-guang Zhang ◽  
Wei Zhang ◽  
Zhong Yin ◽  
...  

JAMA ◽  
1966 ◽  
Vol 195 (4) ◽  
pp. 307-308
Author(s):  
C. A. Phillips
Keyword(s):  

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