Journal ArticleDOI
Effect of content and distribution of hydroxamic acids in wheat on infestation by the aphid Schizaphis graminum
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TLDR
It is proposed that the distribution of aphids on leaves of different ages is regulated by the hydroxamic acid content, which is always higher in the younger leaves.About:
This article is published in Phytochemistry.The article was published on 1981-01-01. It has received 130 citations till now. The article focuses on the topics: DIMBOA & Infestation.read more
Citations
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Hydroxamic acids (4-hydroxy-1,4-benzoxazin-3-ones), defence chemicals in the Gramineae
TL;DR: Hydroxamic acids of the type 4-hydroxy-1,4-benzoxazin-3-ones constitute one of the most extensively studied secondary metabolites in relation to host plant resistance to pests and diseases.
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Allelopathic Interactions and Allelochemicals: New Possibilities for Sustainable Weed Management
TL;DR: This review attempts to discuss all aspects of allelopathy for the sustainable management of weeds.
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Role of benzoxazinones in allelopathy by rye ( Secale cereale L.)
Jane P. Barnes,Alan R. Putnam +1 more
TL;DR: Of the two benzoxazinone compounds, DIBOA was most toxic to seedling growth and was consistently more toxic than either compound when compared with β-phenyllactic acid (PLA) and β-hydroxybutyric acid (HBA).
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Allelopathy in agroecosystems: an overview.
TL;DR: Allelopathy plays an important role in the agroecosys-tems leading to a wide array of interactions between crop-crop, crop-weed and tree-crops, which are harmful to the receiver plants but provide a selective benefit to the donor.
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Isolation and characterization of allelochemicals in rye herbage
Jane P. Barnes,Jane P. Barnes,Alan R. Putnam,Alan R. Putnam,Basil A. Burke,Basil A. Burke,Arne J. Aasen,Arne J. Aasen +7 more
TL;DR: Sequential partitioning of aqueous extracts against a series of solvents of increasing polarity separated the most active compounds in the Et2O fraction based on a cress root growth assay, revealing two new phytotoxic compounds in rye.
References
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2,4-Dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), an Active Agent in the Resistance of Maize to the European Corn Borer
TL;DR: Results and associated experimental evidence indicated that the compound is a chemical factor in the resistance of corn to 1st-brood European corn borer and that its biological activity is attenuated by a vitamin combination in which niacin appears to play a key role.
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Role of hydroxamic acids in the resistance of cereals to aphids
TL;DR: Hydroxamic acid concentration in Gramineae, both natural and incorporated, correlates with resistance to the aphid Metopolophium dirhodum, and it is proposed that hydroxamic acids act as naturally-occurring protective factors against M. Dirhodum.
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Precursors of 6-Methoxybenzoxazolinone in Maize and Wheat Plants, their Isolation and Some of their Properties.
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Feeding and Nutrition of the Pea Aphid, Acyrthosiphon pisum (Homoptera: Aphidae), on Chemically Defined Diets of Various pH and Nutrient Levels
TL;DR: Variations in pH, or in the salt, sucrose, or total amino acid concentrations above or below those of the standard chemical diet usually resulted in reduced aphid growth, reproduction, and survival.
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Decomposition of 2,4-Dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one in Aqueous Solutions
TL;DR: Kinetics of the decomposition of 2,4-dihydroxy-7-methoxy-2H-1, 4-benzoxazin-3(4H)-one (DIMBOA), the major hydroxamate in corn extracts, were studied in buffered aqueous solutions and energies of activation were nearly pH-independent.