6533b830fe1ef96bd1297029

RESEARCH PRODUCT

Inhibition of succinate oxidation by the herbicide UKJ72J

Christian Gauvrit

subject

0303 health sciencesPEARbiology030306 microbiologyLiliaceaeRosaceaePlant ScienceGeneral MedicineHorticulturebiology.organism_classificationBiochemistrySunflowerfood.food[SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy03 medical and health sciencesfoodBotanyLambsquartersPoaceaeChenopodiaceaeMolecular BiologySolanaceaeComputingMilieux_MISCELLANEOUS[SDV.BV.PEP] Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy030304 developmental biology

description

Abstract The inhibitory activity of the herbicide UKJ72J on succinate oxidation in mitochondria from various plant species was studied. In monocotyledons (Gramineae: wheat, oat, maize; Liliaceae: onion, leek) succinate oxidation was affected only at high concentrations. Among dicotyledons widely differing sensitivities were found: in Solanaceae (tomato, potato, tobacco), Leguminosae (mung bean, soybean) and Compositae (sunflower) I 50 concentrations for UKJ72J inhibition were below 55 μM. In Cruciferae (turnip, cauliflowers Chenopodiaceae (lambsquarter, beetroot) and Compositae (endive) I 50 were between 100 and 250 μM, whereas in Rosaceae (apple, pear) and Umbelliferae (carrot, fennel) I 50 were near (apple) or higher than 500 μM. No correlation could be found between the sensitivity to UKJ72J of mitochondrial succinate oxidation in these families and their location in the presently accepted flowering plant classification.

yearjournalcountryeditionlanguage
1985-01-01
https://hal.inrae.fr/hal-02717500