LECs go crazy in embryo development.
Two fundamental aspects of plant development are the maturation phase of embryo development in seed plants and totipotency via somatic embryogenesis (SE). The LEAFY COTYLEDON (LEC) transcription factors (TFs) establish environments that promote cellular processes characteristic of the maturation phase and the initiation of somatic embryo formation. Based on recent studies, we and others propose that specific target genes activated by the LEC TFs underlie, in part, their roles in the maturation phase and SE. We also propose that the effect of LEC TFs on the balance of abscisic acid to gibberellic acid might link their roles in totipotency and the maturation phase.
Braybrook
Siobhan A
SA
Department of Plant Biology and Graduate Program in Plant Biology, College of Biological Sciences, University of California, One Shields Avenue, Davis, CA 95616, USA.
Harada
John J
JJ
D000040:Abscisic Acid / Q000378:metabolism; D017360:Arabidopsis / Q000196:embryology / Q000235:genetics / Q000378:metabolism; D029681:Arabidopsis Proteins / Q000378:metabolism; D022762:CCAAT-Enhancer-Binding Proteins / Q000378:metabolism; D047108:Embryonic Development; D005875:Gibberellins / Q000378:metabolism; D063245:Plant Development; D010944:Plants / Q000196:embryology / Q000378:metabolism; D012639:Seeds / Q000196:embryology / Q000254:growth & development* / Q000378:metabolism; D039901:Totipotent Stem Cells / Q000378:metabolism*; D014157:Transcription Factors / Q000378:metabolism*
D029681:Arabidopsis Proteins; D022762:CCAAT-Enhancer-Binding Proteins; D005875:Gibberellins; C113191:LEC1 protein, Arabidopsis; C504240:LEC2 protein, Arabidopsis; D014157:Transcription Factors; D000040:Abscisic Acid; C007842:gibberellic acid