Cyanide-resistant, ATP-synthesis-sustained, and uncoupling-protein-sustained respiration during postharvest ripening of tomato fruit

Andrea Miyasaka Almeida, Wieslawa Jarmuszkiewicz, Hamid Khomsi, Paulo Arruda, Anibal E. Vercesi, Francis E. Sluse

Resultado de la investigación: Contribución a una revistaArtículo

62 Citas (Scopus)

Resumen

Tomato (Lycopersicon esculentum) mitochondria contain both alternative oxidase (AOX) and uncoupling protein as energy-dissipating systems that can decrease the efficiency of oxidative phosphorylation. We followed the cyanide (CN)-resistant, ATP-synthesis-sustained, and uncoupling-protein-sustained respiration of isolated mitochondria, as well as the immunologically detectable levels of uncoupling protein and AOX, during tomato fruit ripening from the mature green stage to the red stage. The AOX protein level and CN-resistant respiration of isolated mitochondria decreased with ripening from the green to the red stage. The ATP-synthesis-sustained respiration followed the same behavior. In contrast, the level of uncoupling protein and the total uncoupling-protein-sustained respiration of isolated mitochondria decreased from only the yellow stage on. We observed an acute inhibition of the CN-resistant respiration by linoleic acid in the micromolar range. These results suggest that the two energy-dissipating systems could have different roles during the ripening process.

Idioma originalInglés
Páginas (desde-hasta)1323-1329
Número de páginas7
PublicaciónPlant Physiology
Volumen119
N.º4
EstadoPublicada - abr 1999

Áreas temáticas de ASJC Scopus

  • Botánica
  • Genética
  • Fisiología

Huella Profundice en los temas de investigación de 'Cyanide-resistant, ATP-synthesis-sustained, and uncoupling-protein-sustained respiration during postharvest ripening of tomato fruit'. En conjunto forman una huella única.

  • Citar esto

    Almeida, A. M., Jarmuszkiewicz, W., Khomsi, H., Arruda, P., Vercesi, A. E., & Sluse, F. E. (1999). Cyanide-resistant, ATP-synthesis-sustained, and uncoupling-protein-sustained respiration during postharvest ripening of tomato fruit. Plant Physiology, 119(4), 1323-1329.