Results 171 to 180 of about 7,113 (215)

SEASONAL VARIATIONS IN RESERVE AND STRUCTURAL COMPONENTS OF PINUS RESINOSA CONES

American Journal of Botany, 1969
Changes in reserve materials, lignin, hemicellulose, and cellulose of 1st‐year conelets and 2nd‐year cones of red pine (Pinus resinosa Ait.) were studied by chemical extraction of the respective fractions. During the first 11 months after emergence of conelets, reserve materials, primarily carbohydrates, constituted approximately half of the dry weight
D. I. Dickmann, T. T. Kozlowski
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Age and Size Structure of Marginal, Disjunct Populations of Pinus Resinosa

The Journal of Ecology, 1987
(I) Samples of three naturally occurring, disjunct stands of Pinus Eresinosa Ait. (red pine) located in the general vicinity of Lake Nipigon, Ontario were mapped, cored for ageestimation, and measured for growth in diameter. (2)The two most western populations showed a wide distribution of age, had long lifespans, and high correlations of age with ...
Roger G. Butson, Peggy Knowles, Robert E. Farmer   +2 more
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Isolation and identification of cytotoxic compounds from the wood of Pinus resinosa

Phytotherapy Research, 2008
AbstractMethanol extracts of wood from Pinus resinosa were found to be selectively cytotoxic against human lung carcinoma cells, A549 (IC50 41 ± 6 µg/mL), human colorectal adenocarcinoma cells, DLD‐1 (IC50 47 ± 4 µg/mL) in comparison with healthy cells, WS1 (IC50 130 ± 11 µg/mL).
Simard, François, Legault, Jean, Lavoie, Serge, Mshvildadze, Vakhtang, Pichette, André   +4 more
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Composition of Gum Turpentines of Pines. XV. A Report on Pinus resinosa and Pinus reflexa*†

Journal of the American Pharmaceutical Association (Scientific ed.), 1952
The composition of gum turpentine from two American pines has been determined. Each sample was fractionated and its components have been investigated and reported.
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Characteristics of two fungi producing ectendomycorrhizae in Pinus resinosa

Canadian Journal of Botany, 1974
Two unidentified, imperfect fungi were isolated from 3-year-old nursery seedlings of red pine. One, referred to as BDG-58, appears to be very similar to the E-strain fungus isolated by Mikola in Finland. It is light brown in culture with septate, smooth to verrucose hyphae, 4.4–8.8 microns (μ) in diameter.
Hugh E. Wilcox, Ruth Ganmore-Neumann, C. J. K. Wang   +2 more
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Soluble carbohydrates of red pine (Pinus resinosa) mycorrhizas and mycorrhizal fungi

Mycological Research, 2000
In the field, the concentrations of several soluble carbohydrates in mycorrhizas of red pine varied seasonally. Fructose, glucose, sucrose and trehalose concentrations were negatively correlated with soil temperature, while myo-inositol and mannitol concentrations were positively correlated.
R.T. Koide, D.L. Shumway, C.M. Stevens
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Growth, nutrition and gas exchange of Pinus resinosa following artificial defoliation

Trees, 1993
In three experiments, red pine (Pinus resinosa Ait.) seedlings and trees were subjected to artificial defoliations of varying intensities and subsequent growth, gas exchange and nutritional responses were monitored. In Experiment 1, 2-year-old seedlings received 0, 1 or 2 50% defoliations during a single growing season and were maintained in 1 of 3 low
P.B. Reich, M.B. Walters, S.C. Krause, D.W. Vanderklein, K.F. Raffs, T. Tabone   +5 more
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Chloroplast microsatellites reveal population genetic diversity in red pine, Pinus resinosa Ait.

Molecular Ecology, 1998
Variation in paternally inherited chloroplast microsatellite (cpSSR) DNA was used to study population genetic structure in red pine (Pinus resinosa Ait.), a species characterized by morphological uniformity, no allozyme variation, and limited RAPD variation.
Echt CS, DeVerno LL, Anzidei M, Vendramin GG   +3 more
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Ecology of a Red Pine (Pinus Resinosa) Plantation in Michigan

Ecology, 1966
A savanna—like area of 1,302 acres in northern Michigan was planted from 1919 to 1923 with red pine (Pinus resinosa), a species not common in local plant communities at that time. Its high survival resulted in marked changes in plant species composition and cover. The plantation could be considered an artificial community.
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The biosynthesis of pinosylvin in the sapwood of Pinus resinosa AIT

Phytochemistry, 1963
Abstract Acetate-1-14C, glucose-G-14C, phenylalanine-G-14C, phenylalanine-[COOH]-14C, and cinnamic acid-β-14C were administered to wounds on paraffin-treated sections of live red pine branches. The wounds were treated with solid carbon dioxide, and the branch sections were kept at 22° for 10 days after which the wood was extracted and radioactive ...
E. von Rudloff, E. Jorgensen
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