Zobrazeno 1 - 10
of 42
pro vyhledávání: '"F. E. Wilson"'
Publikováno v:
Grass and Forage Science. 63:350-359
The variation in force required to break the leaves and pseudostems of perennial ryegrass (Lolium perenne) was measured on twelve New Zealand commercial and pre-release cultivars using a punch and die apparatus which enabled up to 100 simultaneous br
Autor:
F. E. Wilson, B. D. Reinert
Publikováno v:
Reproduction. 103:279-284
The aim of this investigation was to determine whether spontaneous testicular regression in male American tree sparrows (Spizella arborea) that were thyroidectomized at week 4 of photostimulation manifests photorefractoriness, as it does in chronical
Autor:
F. E. Wilson, B. D. Reinert
Publikováno v:
Journal of Comparative Physiology B. 163:563-573
To explore the role of the thyroid gland in the control of seasonal reproduction in obligately photoperiodic American tree sparrows (Spizella arborea), the effects of (1) thyroxine administered in drinking water to thyroid-intact photosensitive or ph
Publikováno v:
Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology. 174(6)
To explore the role of TH in the control of seasonality [i.e., photoperiodic testicular growth, photorefractoriness, and postnuptial (prebasic) molt] in American tree sparrows (Spizella arborea), we performed experiments in which THX males were simul
Autor:
F. E. Wilson
Publikováno v:
Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology. 171(2)
This study tested the hypothesis that L-3,5,3'-triiodothyronine (T3) is the bioactive "seasonality" thyroid hormone in American tree sparrows (Spizella (arborea). The experimental approach coupled thyroid hormone replacement therapy after radiothyroi
Autor:
F E, Wilson, B D, Reinert
Publikováno v:
Journal of neuroendocrinology. 12(1)
Thyroid hormone and long days interact to programme American tree sparrows (Spizella arborea) for seasonality (i.e. thyroid hormone-dependent photoperiodic gonadal growth, photorefractoriness, and postnuptial moult). This study explored in radiothyro
Autor:
F E, Wilson, B D, Reinert
Publikováno v:
Biology of reproduction. 58(1)
In previous studies, we withdrew thyroid hormones by thyroidectomy before, at, or after the onset of photostimulation and showed that male American tree sparrows (Spizella arborea) are programmed for seasonal reproduction and postnuptial molt by or b
Publikováno v:
Journal of Bacteriology. 148:624-628
A ribosomal ribonucleic acid gene set consisting of genes for 16S, 23S, 5S, and 4S ribonucleic acid species has been genetically mapped to a position between the markers recG13 and abrB74 on the Bacillus subtilis chromosome and designated rrnA. A rib
Autor:
F. E. Wilson
Publikováno v:
Journal of Endocrinology. 109:125-131
Testosterone sensitivity of the seminal sacs of castrated tree sparrows from each of three reproductive states was evaluated by measuring the change in seminal-sac mass per unit change in the logarithm of replacement or plasma testosterone. Birds wer
Autor:
F. E. Wilson
Publikováno v:
Journal of Endocrinology. 107:137-143
A series of experiments was performed to clarify whether photorefractoriness in male tree sparrows is maintained by an androgen-dependent mechanism. Castration did not raise plasma LH in photorefractory males held under a daily photoperiod of 20 h li