title: Plant regeneration: cellular origins and molecular mechanisms.
abstract: Compared with animals, plants generally possess a high degree of developmental plasticity and display various types of tissue or organ regeneration. This regenerative capacity can be enhanced by exogenously supplied plant hormones in vitro, wherein the balance between auxin and cytokinin determines the developmental fate of regenerating organs. Accumulating evidence suggests that some forms of plant regeneration involve reprogramming of differentiated somatic cells, whereas others are induced through the activation of relatively undifferentiated cells in somatic tissues. We summarize the current understanding of how plants control various types of regeneration and discuss how developmental and environmental constraints influence these regulatory mechanisms.
authors.affiliation: RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa 230-0045, Japan.
authors.forename: Momoko
authors.identifier: 0000-0001-9474-5131
authors.initials: M
authors.lastname: Ikeuchi
authors.affiliation: RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa 230-0045, Japan.
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Ogawa
authors.affiliation: RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa 230-0045, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Iwase
authors.affiliation: RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa 230-0045, Japan keiko.sugimoto@riken.jp.
authors.forename: Keiko
authors.identifier: 0000-0002-9209-8230
authors.initials: K
authors.lastname: Sugimoto
mesh_terms: D017360:Arabidopsis / Q000254:growth & development* / Q000502:physiology; D065150:Cellular Reprogramming / Q000502:physiology; D003583:Cytokinins / Q000378:metabolism; D007210:Indoleacetic Acids / Q000378:metabolism; D063246:Organogenesis, Plant / Q000502:physiology*; D010937:Plant Growth Regulators / Q000378:metabolism*; D018517:Plant Roots / Q000254:growth & development*; D018520:Plant Shoots / Q000254:growth & development*; D012038:Regeneration / Q000502:physiology*
chemical_list: D003583:Cytokinins; D007210:Indoleacetic Acids; D010937:Plant Growth Regulators
keywords: Cellular reprogramming; De novo organogenesis; Somatic embryogenesis