Journal
PLANT SCIENCE
Volume 181, Issue 5, Pages 545-554Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.plantsci.2011.04.017
Keywords
Nitric oxide signalling; Plant cytoskeleton; Microtubules; alpha-Tubulin; Protein post-translational modifications; Tyrosine nitration
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Nitric oxide (NO) in plant cell mediates processes of growth and development starting from seed germination to pollination, as well as biotic and abiotic stress tolerance. However, proper understanding of the molecular mechanisms of NO signalling in plants has just begun to emerge. Accumulated evidence suggests that in eukaryotic cells NO regulates functions of proteins by their post-translational modifications, namely tyrosine nitration and S-nitrosylation. Among the candidates for NO-downstream effectors are cytoskeletal proteins because of their involvement in many processes regulated by NO. This review discusses new insights in plant NO signalling focused mainly on the involvement of cytoskeleton components into NO-cascades. Herein, examples of NO-related post-translational modifications of cytoskeletal proteins, and also indirect NO impact, are discussed. Special attention is paid to plant alpha-tubulin tyrosine nitration as an emerging topic in plant NO research. (C) 2011 Elsevier Ireland Ltd. All rights reserved.
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