SYNERGISTIC ON AUXIN AND CYTOKININ 1 positively regulates growth and attenuates soil pathogen resistance

0536113 - BFÚ 2021 RIV GB eng J - Journal Article
Hurny, A. - Cuesta, C. - Cavallari, N. - Ötvös, K. - Duclercq, J. - Dokládal, Ladislav - Montesinos, J. C. - Gallemí, M. - Semerádová, H. - Rauter, T. - Stenzel, I. - Persiau, G. - Benade, F. - Bhalearo, R. - Sýkorová, Eva - Gorzsas, A. - Sechet, J. - Mouille, G. - Heilmann, I. - De Jaeger, G. - Ludwig-Mueller, J. - Benková, E.
SYNERGISTIC ON AUXIN AND CYTOKININ 1 positively regulates growth and attenuates soil pathogen resistance.
Nature Communications. Roč. 11, č. 1 (2020), č. článku 2170. E-ISSN 2041-1723
Institutional support: RVO:68081707
Keywords : b response regulators * pollen-tube growth * box protein tir1 * plasmodiophora-brassicae * apical hook
OECD category: 1.7 Other natural sciences
Impact factor: 14.919, year: 2020
Method of publishing: Open access
https://www.nature.com/articles/s41467-020-15895-5.pdf

Plants as non-mobile organisms constantly integrate varying environmental signals to flexibly adapt their growth and development. Local fluctuations in water and nutrient availability, sudden changes in temperature or other abiotic and biotic stresses can trigger changes in the growth of plant organs. Multiple mutually interconnected hormonal signaling cascades act as essential endogenous translators of these exogenous signals in the adaptive responses of plants. Although the molecular backbones of hormone transduction pathways have been identified, the mechanisms underlying their interactions are largely unknown. Here, using genome wide transcriptome profiling we identify an auxin and cytokinin cross-talk component, SYNERGISTIC ON AUXIN AND CYTOKININ 1 (SYAC1), whose expression in roots is strictly dependent on both of these hormonal pathways. We show that SYAC1 is a regulator of secretory pathway, whose enhanced activity interferes with deposition of cell wall components and can fine-tune organ growth and sensitivity to soil pathogens. Cytokinin and auxin are two major hormonal regulators of plant growth. Here the authors identify SYAC1, a gene that is synergistically activated by the two hormones being applied together, and show that it is required for normal growth while negatively impacting pathogen resistance.
Permanent Link: http://hdl.handle.net/11104/0313943