Light interacts with auxin during leaf elongation and leaf angle development in young corn seedlings

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15410%2F03%3A00001344" target="_blank" >RIV/61989592:15410/03:00001344 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Light interacts with auxin during leaf elongation and leaf angle development in young corn seedlings
Original language description
Modern corn varieties have been selected for their ability to maintain productivity in dense plantings. We have tested the possibility that the physiological consequence of the selection of the modern hybrid, 3394, for increased crop yield includes changes in responsiveness to auxin and light. Etiolated seedlings in the modern line are shorter than in an older hybrid, 307, since they produce shorter coleoptile, mesocotyl, and leaves (blade as well as sheath). Etiolated 3394 seedlings as well as isolatedmesocotyl and sheath segments were less responsive to auxin and an inhibitor of polar auxin transport, NPA. Reduced response of 3394 to auxin was associated with less reduction of elongation growth by light (W, R, FR, B) than in 307, whereas activity ofpolar auxin transport (PAT) and its reduction by R or FR were similar in both genotypes. NPA reduced PAT in etiolated 3394 seedlings much less than in 307. A characteristic feature of 3394 plants is more erect leaves. In both hybrids, lig
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EF - Botany
OECD FORD branch
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Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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