AtROP6 is involved in reactive oxygen species signaling in response to iron-deficiency stress in Arabidopsis thaliana.
FEBS Lett
; 592(20): 3446-3459, 2018 10.
Article
em En
| MEDLINE
| ID: mdl-30238451
ABSTRACT
Understanding the mechanism of iron (Fe)-deficiency responses is crucial for improving plant Fe bioavailability. Here, we found that the Arabidopsis Rho-like GTPase 6 mutant (rop6) is less sensitive to Fe-deficiency responses and has reduced levels of reactive oxygen species (ROS) compared to wild-type (WT), while AtROP6-overexpressing seedlings exhibit more sensitivity to Fe-deficiency responses and has higher levels of ROS compared to WT. Moreover, treatment with H2 O2 improves the sensitivity to Fe-deficiency responses in rop6 mutants. By using the yeast two-hybrid system, we further demonstrate the direct interaction between AtROP6 and Arabidopsis respiratory burst oxidase homolog D (AtRBOHD), which controls the generation of ROS. Overall, we suggest that AtROP6 is involved in AtRBOHD-mediated ROS signaling to modulate Fe-deficiency responses in Arabidopsis thaliana.
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Base de dados:
MEDLINE
Assunto principal:
Transdução de Sinais
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Espécies Reativas de Oxigênio
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Arabidopsis
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Proteínas Monoméricas de Ligação ao GTP
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Proteínas de Arabidopsis
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Ferro
Idioma:
En
Revista:
FEBS Lett
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
China