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Gibberellin signaling pathways in plants

Chebotar G., Chebotar S.

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During the last decade plant growth and development have been investigated at the molecular level. Plant specific family GRAS-proteins plays one of the key roles in the molecular mechanisms of this process. In this report we highlight the importance of DELLA-proteins and show the model of gibberellin signalling pathway in plants that starts from the binding of biologically active gibberellic acid with receptor and DELLA-protein. This complex stimulates ubiquitination and degradation of DELLA-proteins through the proteasome pathway. After degradation of DELLA-proteins the repression of plant growth stops that allows gibberellin response to occur. The role of DELLA-proteins as transcription factors is discussed.

Key words: gibberellin, DELLA-protein, dwarfing genes

Tsitologiya i Genetika 2011, vol. 45, no. 4, pp. 67-78

E-mail: gchebotar rambler.ru

Chebotar G., Chebotar S. Gibberellin signaling pathways in plants, Tsitol Genet., 2011, vol. 45, no. 4, pp. 67-78.

In "Cytology and Genetics":
G. O. Chebotar, S. V. Chebotar Gibberellin-signaling pathways in plants, Cytol Genet., 2011, vol. 45, no. 4, pp. 259-268
DOI: 10.3103/S0095452711040037


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