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Oestrogen Sulfotransferase: Molecular Cloning and Sequencing of cDNA for the Bovine Placental Enzyme
CSIRO Publishing - Tập 41 Số 4 - Trang 507 - 1988
The female sex hormone, oestrogen, plays a central role in breast cell
proliferation in both the normal and malignant state. It controls transcription
from several genes, including that for the progesterone receptor, and in
endometrial tissue, via this receptor, it controls the gene for the enzyme
oestrogen sulfotransferase. This enzyme may control the level of the oestrogen
receptor by sulfurylat...
The Evolutionary Significance of Sugar Accumulation in Saccharum
CSIRO Publishing - Tập 16 Số 4 - Trang 737 - 1963
Sugar levels in the various species of the Saccharum complex suggest an
evolutionary increase in sugar content. Under suitable ecological conditions,
survival through sucker growth may be dependent on rapid mobilization of stored
carbohydrate. Selection pressure for sucrose storage would then oocur if sucrose
was more readily remobilized than other storage carbohydrates. It is suggested
that this ...
Simulation of Genetic Systems by Automatic Digital Computers II. Effects of Linkage on Rates of Advance Under Selection
CSIRO Publishing - Tập 10 Số 4 - Trang 492 - 1957
Rates of progress of single populations under selection pressure have been
simulated by an automatic electronic computer. Varying intensities of selection
and tightness of linkage are compared, showing that linkage produces no
qualitative effect on the rates of advance at values greater than 0�005, i.e.
0�5 per cent. recombination.
Activities and Partial Purification of Extracellular Proteases of Bacteroides nodosus from Virulent and Benign Footrot
CSIRO Publishing - Tập 35 Số 5 - Trang 481 - 1982
In an attempt to differentiate virulent and benign strains of B. nodosus, the
extracellular proteolytic activity of these cultures was assayed with elastin,
casein and hide powder azure, and the stability to heating at 55�C was
determined. Broth cultures of both strains hydrolysed 125I-labelled elastin,
indicating that this activity is not a unique marker of virulence. When cultures
were grown in ...
Isozyme Studies on the Origin and Evolution of Puccinia Graminis F. SP. Tritici in Australia
CSIRO Publishing - Tập 35 Số 2 - Trang 231 - 1982
Isozyme phenotypes for eight enzyme systems were used to assess the origins and
evolution of P. graminis f. sp. tritici (the wheat stem rust pathogen) in
Australia. The results obtained by this approach agreed with pathways postulated
on the basis of virulence studies, confirming the suggestion that most of the
major changes in the wheat stem rust pathogen flora of Australia have resulted
from ove...
Concept of General and Specific Combining Ability in Relation to Diallel Crossing Systems
CSIRO Publishing - Tập 9 Số 4 - Trang 463 - 1956
A detailed examination of the concept of combining ability in relation to
diallel crossing systems is made. Eight different analyses aro presented.
'l'hese result from a consideration of four different diallel crossing systems
together wit.h two alternative assumptions with regard to the sampling nature of
tho experimental material. A numerical example is given.
Action Spectrum for the Opening of Albizia Julibrissin Pinnules, and the Role of Phytochrome in the Closing Movements of Pinnules and of Stomata of Vicla Faba
CSIRO Publishing - Tập 25 Số 5 - Trang 885 - 1972
The opening movements of both V. faha stomata and A. julibris8in pinnules have
been shown previously to depend on a redistribution of potassium ions under the
influence of light. Action spectra for both systems show peak effectiveness in
blue light, at 440 nm, but for pinnule opening in A. julibri88in there is a
subsidiary peak in the far red (720 nm). However, opening in far red shows an
initial ...
Isolation of Choriomammotropin from the Ovine Placentome
CSIRO Publishing - Tập 37 Số 2 - Trang 63 - 1984
Placentomes, taken from ewes at 101-141 days gestation, were homogenized and
subjected to differential and density gradient centrifugation. In the presence
or absence of protease inhibitors, choriomammotropin (ovine chorionic
somatomammotropin, oCS) was detected by radioimmunoassay, and banded at two
positions in 30-60% w/v sucrose gradients. The first band (soluble form) eluted
in the sample zone...
The In Vivo Uptake and Incorporation of Radioisotopes into Proteins of Wheat Endosperm
CSIRO Publishing - Tập 17 Số 1 - Trang 102 - 1964
A procedure is described for the quantitative i'301ation of the protein bodies
from developing wheat endosperm. The changes with time in specific a.ctivity of
the storage proteins (present in the protein bodies) and of the soluble proteins
(present in the high-speed supernatant fraction) have been followed in
"pulse"labelling experiments. Excised wheat heads were exposed to [35SJsulphate
for perio...
Testicular and Epididymal Sperm Numbers and Related Parameters in the Developing Awassi Ram
CSIRO Publishing - Tập 31 Số 3 - Trang 257 - 1978
Testicular parameters, parenchymal spermatid concentration, and epididymal sperm
reserves were measured in tracts obtained from 16 Awassi rams classified into
three age groups (1, 1�5 and 2�5 years old). Between 1 and 2�5 years of age the
paired testis weight increased from 164�9 to 315�2 g, the testicular spermatid
number (x 109 ) increased from 15�9 to 55�8, and the total epididymal sperm
reserv...
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