Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Victor H. Argandoña"'
Publikováno v:
Zeitschrift für Naturforschung C. 63:389-394
Germination inhibition activity of N-aryl hydroxamic acids and acetanilide analogues was measured on lettuce seeds (Lactuca sativa). Lipophilicity of the compounds was determined by HPLC. A correlation between lipophilicity values and percentage of g
Publikováno v:
Zeitschrift für Naturforschung C. 61:670-676
Contents of the hydroxamic acids 2,4-dihydroxy-1,4-benzoxazin-3-one (DIBOA), and 2,4- dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA) in leaves and roots of 14 cultivars of rye, Secale cereale L., were determined. Dynamics of accumulation in three
Publikováno v:
Zeitschrift für Naturforschung C. 61:704-708
Fifteen wheat genotypes were grown under water deficit to ascertain the role of osmotic adjustment (OA) and the concentration of benzoxazinones in sustaining grain yield. A positive correlation between osmotic adjustment capacity and yield was observ
Publikováno v:
Journal of Agricultural and Food Chemistry. 52:2598-2601
Natural hydroxamic acids and related compounds derived from the 1,4-benzoxazin-3-one structure show antifeedant activity against the aphid Rhopalosiphum padi. This antifeeding activity is based on the electrophilic character of the hydroxamic acid fu
Autor:
Mercedes Cueto, Aurelio San-Martín, Azucena González-Coloma, Alejandro Riquelme, Omar Santana, José Darias, Ana R. Díaz-Marrero, and Ana Guadaño, Victor H. Argandoña, Juana Rovirosa
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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5 pages, 3 tables, 1 chart.-- PMID: 12428955 [PubMed].-- Printed version published Nov 20, 2002.
Supporting information available: Table showing the phytotoxic effects of compounds 11-13 on barley and tomato leaves.-- Available at: http://pubs.a
Supporting information available: Table showing the phytotoxic effects of compounds 11-13 on barley and tomato leaves.-- Available at: http://pubs.a
Autor:
Luis J. Corcuera, Gustavo E. Zúñiga, Victor H. Argandoña, Liliana Cardemil, Mercedes E. Chaman
Publikováno v:
Journal of Agricultural and Food Chemistry. 49:2249-2253
Peroxidase enzymes have been found in soluble, ionically bound, and covalently bound forms and have been implicated in several physiological processes in plants. This paper investigates the effect of aphid infestation on soluble and bound-cell wall p
Autor:
Gustavo E. Zúñiga, Victor H. Argandoña, Luis J. Corcuera, Liliana Cardemil, Mercedes E. Chaman, Orlando Muñoz
Publikováno v:
Journal of Chemical Ecology. 27:53-68
The purpose of this work was to investigate whether ethylene is involved in the oxidative and defensive responses of barley to the aphids Schizaphis graminum (biotype C) and Rhopalophum padi. The effect of aphid infestation on ethylene production was
Autor:
Alvaro Vázquez, Fernando Ferreira, Patrick Moyna, Silvia Soulé, Victor H. Argandoña, C. Güntner
Publikováno v:
Phytochemistry. 55:217-222
A spirostanic saponin was isolated from the ethanolic extract of the aerial parts of Solanum laxum Steud. The compound, named luciamin, was characterised by NMR spectroscopy, mass spectrometry and chemical methods, as (22 R , 25 S )-spirost-5-en-3 β
Autor:
Silvia Soulé, Patrick Moyna, Carlos Güntner, Victor H. Argandoña, Alvaro Vázquez, Fernando Ferreira
Publikováno v:
Journal of Chemical Ecology. 25:369-374
Common Solanum glycosides were tested against a non-Solanum pest, the greenbug, Schizaphis graminum, fed by artificial diet supplemented with the tested compounds. In contrast with the potato aphid Macrosiphum euphorbiae, S. graminum is sensitive to
Publikováno v:
Zeitschrift für Naturforschung C. 53:811-817
Stress, pathogens or insects induce profound changes in the expression of the chemical constituents of plants. Some of these changes could be adaptations to the new conditions or the expression of new defensive characteristics. The purpose of this pa