BIBLIOS

Tipo
Artigos em Revista

Tipo de Documento
Artigo Completo

Título
Epigenetics at the crossroads of secondary growth regulation

Participantes na publicação
Vera Inácio (Author)
BioISI - Biosystems & Integrative Sciences Institute
Dep. Biologia Vegetal
BioISI
BioISI
Raquel Santos (Author)
BioISI - Biosystems & Integrative Sciences Institute
Rafael Prazeres (Author)
BioISI - Biosystems & Integrative Sciences Institute
José Graça (Author)
INSTITUTO SUPERIOR DE AGRONOMIA
Célia M. Miguel (Author)
BioISI - Biosystems & Integrative Sciences Institute
Dep. Biologia Vegetal
BioISI
Leonor Morais-Cecílio (Author)
INSTITUTO SUPERIOR DE AGRONOMIA

Resumo
The development of plant tissues and organs during post-embryonic growth occurs through the activity of both primary and secondary meristems. While primary meristems (root and shoot apical meristems) promote axial plant growth, secondary meristems (vascular and cork cambium or phellogen) promote radial thickening and plant axes strengthening. The vascular cambium forms the secondary xylem and phloem, whereas the cork cambium gives rise to the periderm that envelops stems and roots. Periderm takes on an increasingly important role in plant survival under climate change scenarios, but it is also a forest product with unique features, constituting the basis of a sustainable and profitable cork industry. There is established evidence that epigenetic mechanisms involving histone post-translational modifications, DNA methylation, and small RNAs play important roles in the activity of primary meristem cells, their maintenance, and differentiation of progeny cells. Here, we review the current knowledge on the epigenetic regulation of secondary meristems, particularly focusing on the phellogen activity. We also discuss the possible involvement of DNA methylation in the regulation of periderm contrasting phenotypes, given the potential impact of translating this knowledge into innovative breeding programs.


Instituição
BioISI - Biosystems & Integrative Sciences Institute

Suporte
Frontiers in Plant Science

Identificadores da Publicação
ISSN - 1664-462X

Editora
Frontiers Media SA


Identificadores do Documento
DOI - https://doi.org/10.3389/fpls.2022.970342
URL - http://dx.doi.org/10.3389/fpls.2022.970342

Identificadores de Qualidade
SCIMAGO Q1 (2021) - 1359 - Plant Science