000 | 02688nab a22003857a 4500 | ||
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001 | 39649 | ||
003 | CO-PlCIA | ||
005 | 20130510183458.0 | ||
040 |
_aCO-PlCIA _cCO-PlCIA |
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041 | _aeng | ||
050 | _a7966 | ||
245 | _aStimulation of indoleacetic acid oxidase of bean plants by naphthenates | ||
100 | _aLOH, J.W.C. | ||
700 | _aSEVERSON, J.G. | ||
008 | 120504t1975 000 0seng d | ||
300 | _a14:1265-1267 | ||
520 |
_aLas raices de plantas ahiladas de frijol (Phaseolus vulgaris L. var. Topcrop) de 13 dias de edad se sumergieron en soluciones de 100 ppm de naftenato de potasio, ciclohezanocarboxilato de potasio (CHCK) o ciclopentilacetato de potasio (CPAK). Despues de 24 horas, cada tratamiento ocasiono aumentos en la actividad in vivo de las oxidasas de AIA en los epicotilos. Sin embargo, el maximo efecto estimulante se obtuvo con el uso de CHCK y de CPAK. La actividad de la enzima no afecto significativamente al adicionar CHCK o CPAK a estractos de celulas libres tomadas de tejidos de plantas no tratadas. Los resultados sugieren que el estimulo de la actividad de la enzima estuvo asociado con la presencia de metabolitos de naftenato, mas que con la de acidos libres y que el tratamiento puede influir en el crecimiento de la planta mediante su efecto sobre el metabolismo de la auxina. (RA-CIAT) _9spa |
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520 |
_aThe roots of 13-day-old etiolated bush beans plants (Phaseolus vulgaris L. cv Top Crop) were inmmersed in 100 ppm solutions of potassium naphthenate, potassium cyclohexanecarboxylate (KCHC), or potassium cyclopentylacetate (KCPAc). After 24 h each treatment resulted in significant increases in the in vivo activity of IAA oxidases in the epicotyls. However, the greatest stimulatory effect was obtained with the use of KCHC and KCPAc. Enzyme activity was not affected significantly by the addition of either KCHC or KCPAc to cell-free extracts of untreated plant tissue. The results suggest that the stimulation of enzyme activity was associated with the presence of naphthenate metabolites rather than with the free acids, and treatment may influence plant growth by affecting auxin metabolism. (AS) _9eng |
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_aPhaseolus vulgaris _9eng |
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650 |
_aINDOLEACETIC ACID _9eng |
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650 |
_aDWARF BEANS _9eng |
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650 |
_aEnzymes _9eng |
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650 |
_aEPICOTYL _9eng |
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650 |
_aRoots _9eng |
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650 |
_aPlant tissues _9eng |
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650 |
_aMetabolism _9eng |
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653 |
_aFrijol _9spa |
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653 |
_aBeans _9spa |
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653 |
_aJournal articles _9spa |
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653 |
_aArtÃculos en revistas _9spa |
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773 |
_tPhytochemistry _d1975 |
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998 | _aFRIJOL | ||
653 |
_aJournal article _9eng |
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942 |
_2lcc _cJA |
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999 |
_c82771 _d82771 |