THE PARASPORAL BODY OF BACILLUS LATEROSPORUS LAUBACH
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چکیده
منابع مشابه
The Parasporal Body of Bacillus Laterosporus Laubach
On sporulation the slender vegetative rods swell and form larger spindle-shaped cells in which the spores are formed. When the spores mature they lie in a lateral position cradled in canoe-shaped parasporal bodies which are highly basophilic and can be differentiated from the surrounding vegetative cell cytoplasm with dilute basic dyes. On completion of sporulation the vegetative cell protoplas...
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Fowler's bacillus is one of several organisms which form a non-viable inclusion or parasporal body during the process of sporulation. This body is globular and may be as large as or larger than the spore. Its position in the cell is not random; the spore is terminal and the body paracentral, lying between the spore and the remaining vegetative cell chromatin bodies. On completion of sporulation...
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Spores of Bacillus laterosporus were studied to determine the chemical and morphological nature of their basophilic canoe-shaped parasporal bodies. An unusually high phosphorus content of these spores compared to other Bacillus species appeared to be associated with the parasporal body. Preparations of these "canoes" still attached to the spore coats were indeed high in phosphorus, but also in ...
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The Bacillus laterosporus strains 921 and 615 were shown to have toxicity for larvae of the mosquitoes Aedes aegypti, Anopheles stephensi, and Culex pipiens. The larvicidal activity of B. laterosporus was associated with spores and crystalline inclusions. Purified B. laterosporus 615 crystals were highly toxic for Aedes aegypti and Anopheles stephensi.
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In present study Bacillus laterosporus isolated from a commercial formulation showed larvicidal activity against second instar larvae of Aedies aegypti, Anophles stephense and Culex qunquefasciatus. The % mortality without heat treatment was 37.34 against Anophles and 18.67 against Culex. The toxin was heat stable and its toxicity increased with inoculum size and incubation time. The study reve...
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ژورنال
عنوان ژورنال: The Journal of Biophysical and Biochemical Cytology
سال: 1957
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.3.6.1001