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Hydroxamic acids derived from 2-hydroxy-2H-1,4-benzoxazin-3(4H)-one: key defense chemicals of cereals.
  • H. Niemeyer
  • Biology, Medicine
  • Journal of agricultural and food chemistry
  • 30 January 2009
Many cereals accumulate hydroxamic acids derived from 2-hydroxy-2H-1,4-benzoxazin-3(4H)-one. These benzoxazinoid hydroxamic acids are involved in defense of maize against various lepidopteran pests,Expand
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Differences in Effects of Pyrrolizidine Alkaloids on Five Generalist Insect Herbivore Species
The evolution of the diversity in plant secondary compounds is often thought to be driven by insect herbivores, although there is little empirical evidence for this assumption. To investigate whetherExpand
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Chemical Composition of Precloacal Secretions of Two Liolaemus fabiani Populations: Are They Different?
The chemical composition of secretions of precloacal pores from two populations of the lizard Liolaemusfabiani (Puilar and Punta-Brava) were compared. This is an endemic species from the Atacama SaltExpand
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Chemical Composition of Precloacal Secretions of Liolaemus Lizards
Interspecific chemical variation of precloacal pore secretions of Liolaemus lizards was characterized in 20 species, and intraspecific chemical variation was characterized using nine individuals ofExpand
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Direction of dispersion of cochineal (Dactylopius coccus Costa) within the americas
Dactylopius coccus has been used in Mexico and Peru as a source of natural dyes since pre-Columbian times. A phylogenetic analysis of the genus Dactylopius, and the disjoint distribution of D.Expand
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Effects of DIMBOA on detoxification enzymes of the aphid Rhopalosiphum padi (Homoptera: aphididae).
The presence of glutathione transferases and esterase activity was investigated in Rhopalosiphum padi and the effects of the cereal hydroxamic acid, 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-oneExpand
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Variability in the assessment of snake predation risk by Liolaemus lizards
The ability to assess and respond to predation risk is a strong selective force. Detection of predators is carried out by one or more sensory modalities, but the use of chemoreception has significantExpand
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Local identification and valuation of ecosystem goods and services from Opuntia scrublands of Ayacucho, Peru
Abstract Opuntia scrublands are important ecological–economic systems in the Andean area. They perform a major role protecting slopes against erosion, improving the soil properties and providing aExpand
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Interplay between thermal and immune ecology: effect of environmental temperature on insect immune response and energetic costs after an immune challenge.
Although the study of thermoregulation in insects has shown that infected animals tend to prefer higher temperatures than healthy individuals, the immune response and energetic consequences of thisExpand
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Behavioural differences during host selection between alate virginoparae of generalist and tobacco‐specialist Myzus persicae
Host plant selection and acceptance by aphids involves four consecutive steps: (1) prealighting behaviour, (2) leaf surface exploration and probing of subepidermal tissues, (3) deep probing of plantExpand
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