Variations in starch & total polysaccharide content of Pinus ponderosa needles with fluoride fumigation

Variations in starch & total polysaccharide content of Pinus ponderosa needles with fluoride fumigation.

9. HABERMANN, HELEN M. & A. H. BROWN. 1957. Certain effects of ascorbic acid on the reduction of oxygen in chloroplast preparations. In: Research in Photosynthesis, H. Gaffron, ed. Interscience, New York. P. 257-262. 10. HABERMANN, HELEN M. & L. P. VERNON. 1958. Isotope experiments on the 2,6-dichlorophenolindophenol-mediated oxidation of ascorbic acid by illum.inated chloroplasts. Arch. Bioche...

Abortifacient effects of a unique class of vasoactive lipids from Pinus ponderosa needles.

Pinus ponderosa needle (PN) ingestion by late pregnant cows results in decreased uterine blood flow, premature parturition, and retained placentae. Further, plasma from PN-fed cows increases caruncular arterial tone (i.e., induces prolonged contraction) in an isolated perfused bovine placentome. A novel class of vasoactive lipids was isolated and identified using a bovine placentome assay-guide...

Effects of Ingestion of Ponderosa Pine Needles

Consumption of Ponderosa pine needles by late-pregnant beef cows results in the premature delivery of a viable calf. We have demonstrated the presence of a factor(s1 in plasma from cows fed pine needles that specifically increased uterine arterial tone (i.e., decreased arterial diameter) in vitro. This study was designed to investigate changes in uterine blood flow and steroid secretioduptake b...

Assessing longevity of ponderosa pine (Pinus ponderosa) snags in relation to age, diameter, wood density and pitch content

Ingestion of Ponderosa Pine Needles by Cattle