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Negative Regulation of Autophagy by Sulfide Is Independent of Reactive Oxygen Species

Opened Access Negative Regulation of Autophagy by Sulfide Is Independent of Reactive Oxygen Species

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Autor: Laureano Marín, Ana María
Moreno, Inmaculada
Romero, Luis C.
Gotor Martínez, Cecilia
Departamento: Universidad de Sevilla. Departamento de Bioquímica Vegetal y Biología Molecular
Fecha: 2016
Publicado en: Plant Physiology, 171 (2), 1378-1391.
Tipo de documento: Artículo
Resumen: Accumulating experimental evidence in mammalian, and recently plant, systems has led to a change in our understanding of the role played by hydrogen sulfide in life processes. In plants, hydrogen sulfide mitigates stress and regulates important plant processes such as photosynthesis, stomatal movement, and autophagy, although the underlying mechanism is not well known. In this study, we provide new experimental evidence that, together with our previous findings, demonstrates the role of hydrogen sulfide in regulating autophagy. We used green fluorescent protein fluorescence associated with autophagic bodies and immunoblot analysis of the ATG8 protein to show that sulfide (and no other molecules such as sulfur-containing molecules or ammonium) was able to inhibit the autophagy induced in Arabidopsis (Arabidopsis thaliana) roots under nitrogen deprivation. Our results showed that sulfide was unable to scavenge reactive oxygen species generated by nitrogen limitation, in contrast to well...
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Cita: Laureano Marín, A.M., Moreno, I., Romero, L.C. y Gotor Martínez, C. (2016). Negative Regulation of Autophagy by Sulfide Is Independent of Reactive Oxygen Species. Plant Physiology, 171 (2), 1378-1391.
Tamaño: 19.45Mb
Formato: PDF

URI: http://hdl.handle.net/11441/68551

DOI: 10.1104/pp.16.00110

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