JA-pretreated hypocotyl explants potentiate de novo shoot regeneration in Arabidopsis

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Plant regeneration involves critical checkpoints including pluripotency acquisition and de novo organogenesis. However, comprehensive understanding of the mechanisms that underlie plant regeneration remains limited. Here, we found that calli derived from jasmonate (JA)-pretreated hypocotyl explants exhibited increased rates of de novo shoot regeneration. In contrast, exogenous JA treatment during callus formation on CIM did not influence the plant regeneration process. The enhanced shoot regeneration was diminished in coi1-1 mutants, indicating that JA-pretreated explants potentiate shoot regeneration in a COI1-dependent manner. These results suggest that the JA-responsive COI1 protein likely contributes to plant regeneration efficiency via regulation of hormone-signaling crosstalk and/or cell proliferation.
Publisher
TAYLOR & FRANCIS INC
Issue Date
2019-05
Language
English
Article Type
Article
Citation

PLANT SIGNALING & BEHAVIOR, v.14, no.8

ISSN
1559-2316
DOI
10.1080/15592324.2019.1618180
URI
http://hdl.handle.net/10203/269976
Appears in Collection
BS-Journal Papers(저널논문)
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