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Z-box Binding Factors in Light Signal-controlled Plant Growth and Development

National Institute of Technology, Durgapur 713209 &. National Institute of Plant Genome Research New Delhi 110067. Z-box Binding Factors in Light Signal-controlled Plant Growth and Development. Sudip Chattopadhyay. Arabidopsis seedling development. Skotomorphogenesis. Photomorphogenesis.

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Z-box Binding Factors in Light Signal-controlled Plant Growth and Development

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  1. National Institute of Technology, Durgapur 713209 & National Institute of Plant Genome Research New Delhi 110067 Z-box Binding Factors in Light Signal-controlled Plant Growth and Development Sudip Chattopadhyay

  2. Arabidopsis seedling development Skotomorphogenesis Photomorphogenesis Dark Light

  3. COP1 Photomorphogenesis Light COP1, a master negative regulator of photomorphogenesis, acts as ubiquitin ligase Tumor Suppressor Protein: p53 (Mammals) Nature (2004)

  4. HY5, a positive regulator of photomorphogenesis 1 77 168 basic Lzip

  5. 7 ZBF1/MYC2 6 1 623 aa 5 4 3 Hypocotyl length (mm) 2 1 Col atmyc2-3 0 atmyc2-2 5 15 20 30 BL fluence rate (mol/sec/m2) WT zbf1-1 (atmyc2-3) zbf1-1 (atmyc2-3) WT zbf1-2 (atmyc2-2) WT zbf1-1 (atmyc2-3) WT Red light Far-red light Blue light Blue light ZBF1/MYC2 acts as a negative regulator of blue light mediated seedling development

  6. Pphysically interactions with COP1 In vitro binding: Two-hybrid:

  7. Physically interactions with COP1 Co-localization:

  8. Regulation of genes in an additive or antagonistic manner

  9. 7 6 5 4 3 Hypocotyl length (mm) 2 1 Col atmyc2-3 0 atmyc2-2 5 15 20 30 BL fluence rate (mol/sec/m2) ZBF1/MYC2 acts as a negative regulator of blue light mediated seedling development WT zbf1-1 (atmyc2-3) zbf1-1 (atmyc2-3) WT zbf1-2 (atmyc2-2) WT zbf1-1 (atmyc2-3) WT Red light Far-red light Blue light Blue light

  10. Morphological defects in adult stage WT zbf1-1 Lateral root development Flowering time

  11. WT zbf1-1 ABA (abiotic stress) JA (biotic stress) WT zbf1-1 Morphological defects in adult stage

  12. Cloning and over-expression in tomato transgenic plants Transformed tomato plants

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