The negative regulator SMAX1 controls mycorrhizal symbiosis and strigolactone biosynthesis in rice

Choi J, Lee T, Cho J, Servante EK, Pucker B, Summers W, Bowden S, Rahimi M, An K, An G, Bouwmeester HJ, et al. (2020)
Nature Communications 11(1): 2114.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Choi, Jeongmin; Lee, Tak; Cho, Jungnam; Servante, Emily K.; Pucker, BoasUniBi ; Summers, William; Bowden, Sarah; Rahimi, Mehran; An, Kyungsook; An, Gynheung; Bouwmeester, Harro J.; Wallington, Emma J.
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Abstract / Bemerkung
Most plants associate with beneficial arbuscular mycorrhizal (AM) fungi that facilitate soil nutrient acquisition. Prior to contact, partner recognition triggers reciprocal genetic remodelling to enable colonisation. The plant Dwarf14-Like (D14L) receptor conditions pre-symbiotic perception of AM fungi, and also detects the smoke constituent karrikin. D14L-dependent signalling mechanisms, underpinning AM symbiosis are unknown. Here, we present the identification of a negative regulator from rice, which operates downstream of the D14L receptor, corresponding to the homologue of the Arabidopsis thaliana Suppressor of MAX2-1 (AtSMAX1) that functions in karrikin signalling. We demonstrate that rice SMAX1 is a suppressor of AM symbiosis, negatively regulating fungal colonisation and transcription of crucial signalling components and conserved symbiosis genes. Similarly, rice SMAX1 negatively controls strigolactone biosynthesis, demonstrating an unexpected crosstalk between the strigolactone and karrikin signalling pathways. We conclude that removal of SMAX1, resulting from D14L signalling activation, de-represses essential symbiotic programmes and increases strigolactone hormone production.
Stichworte
General Biochemistry; Genetics and Molecular Biology; General Physics and Astronomy; General Chemistry
Erscheinungsjahr
2020
Zeitschriftentitel
Nature Communications
Band
11
Ausgabe
1
Art.-Nr.
2114
eISSN
2041-1723
Page URI
https://pub.uni-bielefeld.de/record/2943062

Zitieren

Choi J, Lee T, Cho J, et al. The negative regulator SMAX1 controls mycorrhizal symbiosis and strigolactone biosynthesis in rice. Nature Communications. 2020;11(1): 2114.
Choi, J., Lee, T., Cho, J., Servante, E. K., Pucker, B., Summers, W., Bowden, S., et al. (2020). The negative regulator SMAX1 controls mycorrhizal symbiosis and strigolactone biosynthesis in rice. Nature Communications, 11(1), 2114. doi:10.1038/s41467-020-16021-1
Choi, Jeongmin, Lee, Tak, Cho, Jungnam, Servante, Emily K., Pucker, Boas, Summers, William, Bowden, Sarah, et al. 2020. “The negative regulator SMAX1 controls mycorrhizal symbiosis and strigolactone biosynthesis in rice”. Nature Communications 11 (1): 2114.
Choi, J., Lee, T., Cho, J., Servante, E. K., Pucker, B., Summers, W., Bowden, S., Rahimi, M., An, K., An, G., et al. (2020). The negative regulator SMAX1 controls mycorrhizal symbiosis and strigolactone biosynthesis in rice. Nature Communications 11:2114.
Choi, J., et al., 2020. The negative regulator SMAX1 controls mycorrhizal symbiosis and strigolactone biosynthesis in rice. Nature Communications, 11(1): 2114.
J. Choi, et al., “The negative regulator SMAX1 controls mycorrhizal symbiosis and strigolactone biosynthesis in rice”, Nature Communications, vol. 11, 2020, : 2114.
Choi, J., Lee, T., Cho, J., Servante, E.K., Pucker, B., Summers, W., Bowden, S., Rahimi, M., An, K., An, G., Bouwmeester, H.J., Wallington, E.J., Oldroyd, G., Paszkowski, U.: The negative regulator SMAX1 controls mycorrhizal symbiosis and strigolactone biosynthesis in rice. Nature Communications. 11, : 2114 (2020).
Choi, Jeongmin, Lee, Tak, Cho, Jungnam, Servante, Emily K., Pucker, Boas, Summers, William, Bowden, Sarah, Rahimi, Mehran, An, Kyungsook, An, Gynheung, Bouwmeester, Harro J., Wallington, Emma J., Oldroyd, Giles, and Paszkowski, Uta. “The negative regulator SMAX1 controls mycorrhizal symbiosis and strigolactone biosynthesis in rice”. Nature Communications 11.1 (2020): 2114.

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