Please use this identifier to cite or link to this item:
|Type:||Artigo de periódico|
|Title:||A highly active ATP-insensitive K+ import pathway in plant mitochondria|
|Abstract:||We describe here a regulated and highly active K+ uptake pathway in potato ( Solanum tuberosum), tomato ( Lycopersicon esculentum), and maize (Zea mays) mitochondria. K+ transport was not inhibited by ATP, NADH, or thiol reagents, which regulate ATP-sensitive K+ channels previously described in plant and mammalian mitochondria. However, K+ uptake was completely prevented by quinine, a broad spectrum K+ channel inhibitor. Increased K+ uptake in plants leads to mitochondrial swelling, respiratory stimulation, heat release, and the prevention of reactive oxygen species formation. This newly described ATP-insensitive K+ import pathway is potentially involved in metabolism regulation and prevention of oxidative stress.|
reactive oxygen species
|Editor:||Kluwer Academic/plenum Publ|
|Appears in Collections:||Artigos e Materiais de Revistas Científicas - Unicamp|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.