dc.creator | Niemeyer, Hermann M. | |
dc.creator | Pesel, Erika | |
dc.creator | Copaja, Sylvia V. | |
dc.creator | Bravo, Héctor R. | |
dc.creator | Franke, Stephan | |
dc.creator | Francke, Wittko | |
dc.date.accessioned | 2018-12-20T14:39:28Z | |
dc.date.available | 2018-12-20T14:39:28Z | |
dc.date.created | 2018-12-20T14:39:28Z | |
dc.date.issued | 1989 | |
dc.identifier | Phytochemistry, Volumen 28, Issue 2, 2018, Pages 447-449 | |
dc.identifier | 00319422 | |
dc.identifier | 10.1016/0031-9422(89)80029-9 | |
dc.identifier | http://repositorio.uchile.cl/handle/2250/156930 | |
dc.description.abstract | Seedlings of four wheat cultivars were infested with Metopolophium dirhodum nymphs. After aphids had fed for 40 hr on the plants, the levels of the defense metabolite 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one had changed. The changes depended on the cultivar and the portion of the leaf examined. The increase was greater in cultivars Naofen (45.0% at the tip of the leaf, 96.2% at the base where aphids were feeding) and Quilafen (14.7 and 35.8% respectively). The increase was not significant in cultivars Huenufen and Sonka. A simple and sensitive high performance liquid chromatographic method is described for the quantitation of the above benzoxazinone and its demethoxylated analogue using small amounts of plant tissue. © 1989. | |
dc.language | en | |
dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | |
dc.source | Phytochemistry | |
dc.subject | 1,4-benzoxazin-3-ones. | |
dc.subject | aphid | |
dc.subject | DIMBOA | |
dc.subject | Gramineae | |
dc.subject | hydroxamic acids | |
dc.subject | induced plant defences | |
dc.subject | Metopolophium dirhodum | |
dc.subject | Secale cereale | |
dc.subject | T. durum | |
dc.subject | Triticum aestivum | |
dc.title | Changes in hydroxamic acid levels of wheat plants induced by aphid feeding | |
dc.type | Artículos de revistas | |