Details

Autor(en) / Beteiligte

• He, Huyi
• He, Long-Fei

Titel

Nitric oxide is a suppressor of aluminum-induced mitochondria and caspase-like protease-dependent programmed cell death in plants

Ist Teil von

• Plant signaling & behavior, 2019-09, Vol.14 (9), p.1640566-1640566

Ort / Verlag

United States: Taylor & Francis

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Taylor & Francis Journals Auto-Holdings Collection

Beschreibungen/Notizen

• Aluminum (Al) promotes programmed cell death (PCD) in plants. Although a lot of knowledge about the mechanisms of Al tolerance has been learned, how Al-induced PCD is regulated by nitric oxide (NO) is poorly understood. Mitochondrion is the regulatory center for PCD. We found that Al reduced the level of mitochondrial NO/H 2 O 2 , promoted the opening of mitochondrial permeability transition pore, decreased mitochondrial inner membrane potential (∆ψ m ), and increased caspase-like protease activity. NO-specific scavenger cPTIO enhanced these effects that were reversed by NO donor sodium nitroprusside. Our data suggest that NO suppresses Al-induced PCD by improving mitochondrial physiological properties.