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Manipulation of the phenolic chemistry of willows by gall-inducing sawflies.
TLDR
Analysis of the concentrations of various plant defense compounds in willow leaves and sawfly galls found that the galls are probably nutritionally beneficial for the sawfly larvae, and changes in chemistry occur in a similar coordinated pattern in all studied willow species, which suggests that the insects control the phenolic biosynthesis in their hosts. Expand
Bioactive polyphenols in leaves, stems, and berries of Saskatoon (Amelanchier alnifolia Nutt.) cultivars.
TLDR
The findings reveal that leaves and stems of Saskatoon cultivars possess high amounts of various phenolic compounds that may offer new functional raw materials for a wide range of food and health products. Expand
Phenolic glycosides govern the food selection pattern of willow feeding leaf beetles
TLDR
Very rare glycosides or exceptional combination of several glycoside types seem to provide certain willow species with high level of resistance against most herbivorous insects. Expand
Effects of elevated CO2 and temperature on plant growth and herbivore defensive chemistry
TLDR
Climate change may significantly modify the dynamic interaction between willow and beetle populations and thus affect herbivores living on this species. Expand
HERBIVORE RESISTANCE IN BETULA PENDULA: EFFECT OF FERTILIZATION, DEFOLIATION, AND PLANT GENOTYPE
TLDR
There are significant differences among the clones in their insect and mammalian resistance, which indicates that resistance can evolve as a response to herbivory, and the correlations of secondary chemistry and E. autumnata performance indices suggest that the constitutive level of resistance of B. pendula is higher than expected. Expand
Long-term experimental warming, shading and nutrient addition affect the concentration of phenolic compounds in arctic-alpine deciduous and evergreen dwarf shrubs
TLDR
The results indicate that there is no common response to environmental changes across species and substances, but the pronounced treatment responses imply that the quality of the herbivore forage is likely to be strongly affected in a changing arctic environment, although both the direction and strength of the responses will be different among plant species, tissue types and substances. Expand
TRADE-OFFS IN PHENOLIC METABOLISM OF SILVER BIRCH: EFFECTS OF FERTILIZATION, DEFOLIATION, AND GENOTYPE
TLDR
The results provide support for the CNB hypothesis and show that the accumulation of phenolic compounds in birch leaves is strongly coordinated, and a linkage via malonyl-CoA between the biosynthetic routes to terpenoids and flavonoid derivatives, such as condensed tannins, may explain the different responses to fertilization reported for terpenoid and phenolics. Expand
Allocation of carbon to growth and secondary metabolites in birch seedlings under UV-B radiation and CO2 exposure
In plants, the allocation of carbon to secondary metabolites has been shown to be determined by both the availability of resources (e.g., CO 2 concentration) and by specific stress factors (e.g.,Expand
Variation in Phenolic Compounds within a Birch (Betula pendula) Population
TLDR
The stability in chemical profile of individual trees suggests that quality is tightly controlled by genotype, which provides a recognition tool for chemotaxonomy and may provide protection against different types of insects (generalists or specialists) and, thus, have positive effects on population survival. Expand
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