Pinus lambertiana

Sugar pine, Pinus lambertiana, acute single exposure of LD50 (30 days postexposure) 1... 

Widely distributed in plants. Produced on a large scale from the heartwood of Pinus lambertiana. Chiral synthetic precursor. Shows hypoglycaemic and antidiabetic activity. Feeding stimulant for larvae of butterfly Eurema hecabe mandarina, inhibitor of Heliothis zea larval growth. Mp 185-186°. Mg +67 (c, 2.5 in H2O). 

D-Inositol (d-inositol, jS-inositol, matezodambose), m.p. 247-248 , Hd + 65 (H2O), occurs as a monomethyl ether, pinitol, m.p. 186 , Md + 65.5 (H2O), in many plants, particularly conifers (s). The heartwood of the sugar pine, Pinus lambertiana Dough, averages 4% by weight (range, 1.3-9.5%) of pinitol (9). Other sources are the red spruce Picea rubra) (10), redwood Sequoia sempervirens) (11), and the loco weed (1 ). Pinitol is sweet, very soluble in water, and stable in dilute acids and... 

Pinus densiflora (Japanese red pine) 34, 136 Pinus lambertiana (sugar pine) 121... 

Ballou C E, Anderson A B 1953 On the cyclitols present in sugar pine (Pinus lambertiana Dough). J Am Chem Soc 75 648-650... 

Cover Transverse section of Pinus lambertiana wood. Courtesy of Dr. Carl de Zeeuw, SUNY College of Environmental Science and Forestry, Syracuse, New York... 

The oils from the leaves and twigs, and from the cones of Pinus Lambertiana have also been examined by Schorger with the following, results. —... 

This sesquiterpene, according to Schorger, may also be present in the turpentine oil from Pinus Lambertiana. 

Fernando, D.D., S.M. Long and R.A. Sniezko. 2005. Sexual reproduction and crossing barriers in white pines The case between Pinus lambertiana (sugar pine) and P. monticola (western white pine). Tree Genetics Genomes 1 143-150. 

Quebrachitol, 2-0-methyl-L-inositol, occurs in many plants and can be readily recovered from the latex of Hevea brasiliensis, the common Malayan rubber tree. (-(-)-Pinitol, 3-O-methyl-D-inositol, is a common constituent of many plants, particularly conifers, and can be readily isolated from the heartwood of the sugar pine, Pinus lambertiana. The enantiomorph, (—)-pinitol, has also been found in Nature. All these methyl ethers are demethylated to the parent inositols by boiling hydriodic acid. 

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