Cysteine inhibition of phage multiplication in Escherichia
coli has been described by a number of workers. More recently
cysteine has been found to lower the yield of Streptomyces griseus
phage. The present study sought a more complete description of the
"cysteine effect" as it has been noted in the S....
A study of the population ecology of Columbia River fall chinook
salmon, Oncorhynchus tshawytscha (Walbaum), was made in an attempt
to determine the cause of a serious decline in this run which occurred
in the early 1950's. Fluctuations in abundance of major salmon runs
the North Pacific were examined to...
The purpose of this study was to compare the effectiveness of
teaching high school health by team teaching and traditional teaching
methods. For this study 114 second-semester sophomore health
students from Centennial High School in Gresham, Oregon were
used, distributed in three health classes as a control group, utilizing
traditional...
The extraction of tantalum fluoride complexes by large cationic
extractants (tetraphenylarsonium ion, TPA, and crystal violet) and
by methyl isobutyl ketone (MIBK) has been investigated as a function
of fluoride concentration using ¹⁸² Ta as tracer. Extractions by the
cationic extractants into chloroform were carried out in the absence
of...
Published March 1966. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Vibrio marinus MP-1, an obligate psychrophilic marine
bacterium, was severely damaged when heat-shocked in the presence
of nutrients. Thermally induced leakage materials from cells tested
for in the medium were 260 mμ absorbing material (nucleic acids),
orcinol reacting material (RNA), ninhydrin reacting material (amino
acids), protein, malic dehydrogenase, and glucose-6-phosphate...
Certain species of the orders Myxobacterales and Pseudo-monadales are well-known antagonists. Pseudomonas fluorescens
and Pseudomonas putida have been reported to produce bacteriostatic
and bactericidal substances. Among the myxobacteria there
are various species which are known for their ability to produce
lytic enzymes and antibiotics. Organisms from both of these groups...