Quercus

The homoaldol products (3S,47T)-(Z)-4-hydroxy-3-methyl-l-octenyl and (35, 4/ )-(Z)-4-hydroxy-3,7-dimethyl-l,6-octadienyl diisopropylcarbamate are easily converted into the naturally occurring y-lactones quercus lactone A1073 and ( + )-eldanolide120, respectively. [Pg.423]

Fig. 2.71 Compound 229 from Larrea tridentata. Compounds 230-233, flavonoids from Chryso-splenium glechomaefolium. Compounds 234-236, flavonoids from Quercus rubrsi...

Oaks and especially Quercus coccifera are host plants for Kermes ilicis, producing the red kermes pigment. In Asia, the Laccifer lacca insects that grow on trees like Schleichera oleosa, Ziziphus mauritiana, and Butea monsperma are the sources of the red lac dye. - ... [Pg.334]

Figures 9 and 10 Ectoraycorrhizal root of Quercus suher and Pisolithus tine tori us. The fungus produces a well-developed mantle and a Haitig net involving the outer root layers.

Tussah silk Antheraea pemyi Oak (Quercus) trees China... [Pg.385]

Quercus robur (oak acoms) Ocimum basilicum (basil)... [Pg.301]

Old fustic Quercitron bark Persian berries Clorophora tinctoria L. Quercus velutina L. Rhamnus family Luteolin + Apigenin Genistein... [Pg.24]

Walnut galls Galls from Cynips species, Quercus infectoria Oliv. Tannins... [Pg.25]

P.J. Holloway, Composition of suberin from the corks of Quercus suber and Betula pendula, Chemistry and Physics of Lipids, 9, 158 170 (1972). [Pg.35]

Blanco S, Becares E (2009) Una nueva alga invasora llega a Espafia Didymosphenia geminata. Quercus 283 30-35... [Pg.138]

Red oak, Quercus rubra leaf 1.6 km vs. 10.6 km from nickel smelter... [Pg.472]

Zinc concentrations in forest plants vary considerably. In oaks (Quercus spp.), for example, some species are accumulators, whereas others may be termed discriminators. For individual species, zinc concentrations tend to follow the pattern of roots > foliage > branch > trunk (Van Hook et al. 1980). Small lateral roots accumulate Zn to much greater levels than other vegetation components and are probably most sensitive to changes in zinc inputs. Half-time persistence of zinc in forest ecosystems varies from about 3 years in organic matter components to >200 years for large soil pools (Van Hook et al. 1980). [Pg.651]

From oak (Quercus spp.) forest sprayed aerially with 70.75 g diflubenzuron/ha to control gypsy moth instars samples collected 3 days prior to spraying, and up to 21 days after spraying... [Pg.1009]

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