Sequoia sempervirens

Hall, G. D. and Langenheim, J. H. 1987. Geographic variation in leaf monoterpenes of Sequoia sempervirens. Biochem. Syst. Ecol. 15 31-43. 

Aspergillus parasiticus is an endophyte isolated from the inner bark of the redwood tree. Sequoia sempervirens (Taxodiaceae). Previously, several sequoaitones active in the brine shrimp toxicity assay were isolated from this fungal strain and more recently four new sequoaitones C — F (49—52) were isolated and found to be toxic to brine shrimp with LD50 of260 p,M, 1300 xM, 640 xM, and 260 p.M, respectively. ... 

In Quercus alba the rays represent 28% of the wood volume and in other oak species 19-32% in most other hardwoods the rays occupy about 15% but only 8% of the wood volume in the conifer Sequoia sempervirens (13). The large rays of the oak are so spaced and numerous that a molecule of water diffusing through the side of a barrel must cross five or more large rays if it exits on a straight path or follow a much extended path if it is to go around the rays interposed. These large rays no doubt contribute to the strength and bendability of oak as well as to its dimensional stability and relative impermeability. 

Perhaps the most extensive area of research in simple pretreatment systems to enhance the weathering properties of wood has involved application of inorganic salt solutions. Much of the early work in this field was undertaken at the U.S. Forest Products Laboratory in Madison, Wisconsin and was aimed at improving the performance of transparent finishes. Black [25] described an experimental chromate-based wood finish and Black and Mraz [26] discovered that both acid and ammoniacal-copper chromate treatments significantly improved the performance of clear finishes on western red cedar, redwood (Sequoia sempervirens), and Douglas fir plywood. Later research [27] demon-... 

Eucalyptus regnans is the classic example of a eollapse-prone timber. Once eonsidered suitable only as fuelwood, today it is in demand for flooring, furniture and in other prestige items. Collapse-prone timbers inelude eertain other eucalypts, oak (Quercus sp.), black walnut Juglans nigra), western red eedar Thuja plicata) and redwood Sequoia sempervirens). 

It was pointed out that direct attachment of the D-galactose residues to the hexosan framework is only one possibility. It was observed that the D-galactosidic linkage is quite labile to acids. Polysaccharides of similar composition were isolated from western hemlock and redwood Sequoia sempervirens), and it was suggested that water-soluble galactoglucomannans may be of general occurrence in softwoods. 

The coastal redwood. Sequoia sempervirens, one of the largest trees, lives at one of the lowest population densities. 

American beech (Fagus grandifolia Ehrh) 22 Redwood (Sequoia sempervirens (D.Don Endll.) 33... 

As the relative proportions of the woody components vary only within narrow ranges for common commercial species, the EMCs at a given relative humidity and temperature are closely similar for these woods. However, at high relative humidities deviations from mean values can appear. Shubin s data (1990) show, for instance, that at 95% relative humidity the EMC at 42.4°C ranges from 22% for a pine to 33% for an oak. Hoadley (1980) notes that in species with a high extractives content, such as redwood (Sequoia sempervirens) and mahogany (Swietenia mahogani), the fibers remain saturated at 22%-24% moisture content, whereas birch (Betula spp.) may have a moisture content up to 35% at fiber saturation. 

Abies balsamea (L.) Mill./Balsam fir Larix occidentalis Nutt./Western larch Picea glauca (Moench) Voss./White spruce Pinus banksiana Lamb./Jack pine Pinus elliottii Engelm./Slash pine Pinus strobus L./Eastern white pine Sequoia sempervirens (D. Don) Endl./Redwood Old growth Second growth... 

Fig 2.3 Teratological female cones of extant conifers showing reversion from reproductive to vegetative growth (a-e), in one case (c) followed by a switch to male expression, (a, b) Cunninghamia lanceolata, (c) Cryptomeria japonica, (d) Sequoia sempervirens, (e) Abies koreana. Images by Richard Bateman (a-c, e), Julien Bachelier (d). For colour illustration see plate section. 

Sequoia sempervirens (Masters, 1890 present study, pp. J. Bachelier) Sequoia sempervirens (Shaw, 1896)... 

Shaw, W. R. (1896). Contributions to the life-history oi Sequoia sempervirens. Botanical Gazette, 21, 297-300. 

Picea abies L. (Karst) (Norway spruce). Metasequoia glyptostroboides (Dawn redwood), Sequoiadendron giganteum. Sequoia sempervirens (Coast redwood), Cryptomeria japonica (Japanese cedar),... 

Wood Species. The following types of conunercial lumber were obtained from Riverside Lumber Company in New Orleans, LA spruce, Picea sp, yellow birch, Betula alleghaniensis Britton, northern red oak, Quercus rubra L. redwood. Sequoia sempervirens (D. Don) mid Alaska yellow cedar, Chamaecyparis nootkatensis (D. Don). 

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... 

D-Pinitol (lD-3-O-methyl-cA/ro-inositol) is the most widely distributed inositol ether. It has been found in six gymnosperm families and 13 angiosperm families (137). In gymnosperms, it is a component of the resin of Pinus lamber-tiana (see 137) the bark of Picea abies, Pinus nigra (71), Pinus halepensis, and Schinus molle (72) (where its content has been determined as a function of season) the cambial sap of Pinus silvestris, Picea abies, and Abies alba (114) and the wood of Pinus spp. (see 6, 137) and Sequoia sempervirens (153). It also occurs in various plant parts, including latex and wood Acacia mollissima), of angio-sperms (see 137). 

Taxodiaceae Sequoia sempervirens LM Thin layer of phellem cells 199... 

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