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R F Harris

Publications and source records attributed to R F Harris.

50 records · Page 3Linked to original sources
PubMed1971

Adenosine Triphosphate Content of Selenastrum capricornutum.

The adenosine triphosphate content of Selenastrum capricornutum was maintained within 1.4 to 3.4 mug of adenosine triphosphate/mg (dry weight) of living biomass at different growth stages in media of different phosphorus concentrations.

Journal Article↗
PubMed1971

Maternal histidinaemia.

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Amino Acid Metabolism, Inborn Errors↗
PubMed1968

Plate-dilution frequency technique for assay of microbial ecology.

The plate-dilution frequency technique described facilitates simultaneous enumeration of a wide range of physiologically different microorganisms in complex systems with a precision comparable to dilution tube (most probable number) methods. Replicate microsamples are inoculated from each member of a dilution series onto areas delineated on plates of prepoured solid media; the plates are incubated, and the occurrence of growth or specific biochemical transformation is recorded for each inoculated area. Microbial enumeration is accomplished by reference to appropriate tables. Details of the experimental procedures are described, and tables are presented from which microbial numbers with 95% confidence limits can be obtained and compared for significant difference directly for 10-fold and 4-fold dilution series. Results of experiments in which microbial populations were estimated simultaneously by the plate-dilution frequency and conventional plate count methods are compared. The potential of the technique for broad-spectrum microbial assay is also discussed.

Bacteria↗
PubMedDate not supplied

Good news for mice!

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Animals↗