Glutamine synthetase activity is present in both the cytosol and
bacteroid fractions of soybean root nodules. Total activity measurements
indicate that at least 90% of the activity in nodules is located
in the cytosol. Results reported by McParland, et al. (29), showed
that many properties of glutamine synthetase from nodule...
PART I. The concentration of nickel in some soils may be
insufficient to meet the requirements of enzymes such as
urease in soybeans and hydrogenase in Rhizobium. Nickel
availability in soils was examined by measuring microbial
urease activity in soils which were treated with glucose
and urea. Supplemental nickel was...
The goal of the study was to investigate the relationship between
nonverbal behaviors and frustration. As a part of the study an
instrument for the observation of nonverbal behaviors related to
frustration was developed.
The specific hypotheses investigated in this study were the
following:
Hypothesis One - A valid and...
The purposes of this study were to develop a valid and
reliable attitudes toward science instrument in the Thai
language and determine the differences in attitudes toward
science and achievement in physical and biological science
of Thai boys and girls in lower secondary education.
The population consisted of 709 students,...
A major objective of this investigation was to determine the
possible roles, if any, of poly-β-hydroxybutyrate and products of
its metabolic breakdown in symbiotic nitrogen fixation by nodule
bacteroids. Changes in poly -β- hydroxybutyrate content and in
activities of nitrogenase, β-hydroxybutyrate dehydrogenase, and
isocitrate lyase were studied under various conditions...