Abstract:
:Dedifferentiation is a remarkable process that produces pluripotent stem cells from differentiated somatic cells to ensure developmental plasticity. Plants have evolved the ability of cellular dedifferentiation, and signaling cascades related to auxin and cytokinin-dependent callus formation have been extensively investigated. However, the molecular mechanism underlying sugar-dependent callus formation remains unknown. Here, we show that sugar-dependent callus formation is mainly regulated by the TOR-E2Fa module in Arabidopsis. Sugar-activated TOR kinase phosphorylates and stabilizes E2Fa proteins to transcriptionally activate S-phase genes during callus formation. In parallel, E2Fa is transcriptionally regulated by the ARF-LBD transcription cascade. Multi-layered regulation of E2Fa by sugar and auxin is likely to shape balanced cellular dedifferentiation capability in Arabidopsis.
journal_name
J Integr Plant Bioljournal_title
Journal of integrative plant biologyauthors
Lee K,Seo PJdoi
10.1111/jipb.12560subject
Has Abstractpub_date
2017-10-01 00:00:00pages
742-746issue
10eissn
1672-9072issn
1744-7909journal_volume
59pub_type
信件abstract::Appearance and taste are important factors in rice (Oryza sativa) grain quality. Here, we investigated the taste scores and related eating-quality traits of 533 diverse cultivars to assess the relationships between-and genetic basis of-rice taste and eating-quality. A genome-wide association study highlighted the Wx g...
journal_title:Journal of integrative plant biology
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journal_title:Journal of integrative plant biology
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journal_title:Journal of integrative plant biology
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journal_title:Journal of integrative plant biology
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journal_title:Journal of integrative plant biology
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