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Phytoglobins in the nuclei, cytoplasm and chloroplasts modulate nitric oxide signaling and interact with abscisic acid

Through immunolabeling and confocal microscopy we have found that phytogloloins are present in nuclei, chloroplasts, amyloplasts and cytoplasm. They show similar NO dioxygenase activities in vitro, are nitrosylated in Cys residues in vivo and eliminate NO in stomatic cells. They modulate NO and interact with ABA in crucial physiological processes, such as the plant's response to desiccation.

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Original Paper:

Rubio, M.C., Calvo‐Begueria, L., Díaz‐Mendoza, M., Elhiti, M., Moore, M., Matamoros, M.A., James, E.K., Díaz, I., Pérez‐Rontomé, C., Villar, I., Sein‐Echaluce, V.C., Hebelstrup, K.H., Dietz, K.-J., Becana, M. 2019. Phytoglobins in the nuclei, cytoplasm and chloroplasts modulate nitric oxide signaling and interact with abscisic acid. The Plant Journal. DOI: 10.1111/tpj.14422

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