A New Method of obtaining Cultures from Single Bacterial Cells
نویسندگان
چکیده
منابع مشابه
A Simple Method for the Isolation of Pure Cultures from Single Bacterial Cells
A method is described for the isolation of pure cultures from single bacterial cells, which is simple in operation and which requires no complicated apparatus. In addition to its simplicity, the method possesses the further advantage that several selected colonies can be isolated from the same preparation.
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Use of the Single Cell Method in Obtaining Pure Cultures of Anaerobes
The pipette method has proved a feasible method of obtaining one-cell pure cultures of anaerobes. Both bacilli and spores may be used as seeding material, but spores give a much higher percentage of positives. Boiling alone affords a sufficient degree of anaerobiosis to the medium for initiating one-cell growths, and semisolid agar is the most convenient form of medium. Exposure to air during i...
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For the Lucas sequence {Uk(P,Q)} we discuss the identities like the well-known Fibonacci identities. For example, the generalizations of F2k = F 2 k+1 − F 2 k−1 and F2k+1 = F 2 k+1 + F 2 k are PU2k = U 2 k+1 − QU k−1 and U2k+1 = U k+1 − QU k , respectively. We propose a new simple method for obtaining identities involving any recurrences and use it to obtain new identities involving the Fibonac...
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In this article, we propose a simple scheme to make a metallic film on a semi-infinite substrate optically transparent, thus obtaining a completely transparent electrode in a desired frequency range. By placing a composite layer consisting of dielectric and metallic stripes on top of the metallic one, we found that the back-scattering from the metallic film can be almost perfectly canceled by t...
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ژورنال
عنوان ژورنال: Journal of Hygiene
سال: 1921
ISSN: 0022-1724
DOI: 10.1017/s0022172400033970