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4 resultados
Stigmasteryl-β-D-glucoside as an auxin synergist.
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The presence of an auxin synergist was confirmed in the neutral fraction of extracts from peanut plants (Arachis hypogaea L.). The main component resposible for the activity was established as stigmasteryl-β-D-glucoside. It promoted markedly the elongation of Avena coleoptile segments induced by
"Chitin-specific" peroxidases in plants.
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The activity of various plant peroxidases and the ability of their individual isoforms to bind chitin was studied. Some increase in peroxidase activity was observed in crude extracts in the presence of chitin. Activated peroxidases of some species fell in the fraction not sorbed on chitin and those
Formation of N-acetylglutamate by extracts of higher plants.
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The enzymic synthesis of N-acetylglutamate was studied in extracts of higher plant tissues, especially in sugar beet leaves (Beta vulgaris L.). Sugar beet leaves had an enzyme that transferred the acetyl group either from acetyl-CoA or from N(2)-acetylornithine to glutamate. The enzyme was so
Influence of preceding crop on wireworm (Coleoptera: Elateridae) abundance in the coastal plain of North Carolina.
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Three studies were conducted to determine the effect of preceding crop on wireworm (Coleoptera: Elateridae) abundance in the coastal plain of North Carolina. In all three studies, samples of wireworm populations were taken from the soil by using oat, Avena sativa L., baits. Treatments were defined
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