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    Plants are fixed organisms with continuous development throughout their life and great sensitivity to environmental variations. They react in this way by exhibiting large developmental phenotypic plasticity. This plasticity is partly controlled by (phyto)hormones, but recent studies also suggest the involvement of epigenetic mechanisms. It seems that these two factors may interact in a complex way and especially in the stem cells grouped together in meristems. The objective of this review is to present the current arguments about this interaction which would promote developmental plasticity. Three major points are thus addressed to justify this interaction between hormonal control and epigenetics (control at the chromatin level) for the developmental plasticity of plants: the arguments in favor of an effect of hormones on chromatin and vice versa, the arguments in favor of their roles on developmental plasticity and finally the arguments in favor of the central place of these interactions, the meristems. Various perspectives and applications are discussed. © Société de Biologie, 2020.


    Julien Vigneaud, Stéphane Maury. Developmental plasticity in plants: an interaction between hormones and epigenetics at the meristem level]. Biologie aujourd'hui. 2020;214(3-4):125-135

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    PMID: 33357371

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