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Phototropin-related NPL1 controls chloroplast relocation induced by blue light

Author

Listed:
  • Jose A. Jarillo

    (Plant Science Institute, University of Pennsylvania)

  • Halina Gabrys

    (Institute of Molecular Biology, Jagiellonian University)

  • Juan Capel

    (Plant Science Institute, University of Pennsylvania
    Universidad de Almería)

  • Jose M. Alonso

    (Plant Science Institute, University of Pennsylvania
    The Salk Institute for Biological Studies)

  • Joseph R. Ecker

    (Plant Science Institute, University of Pennsylvania
    The Salk Institute for Biological Studies)

  • Anthony R. Cashmore

    (Plant Science Institute, University of Pennsylvania)

Abstract

In photosynthetic cells, chloroplasts migrate towards illuminated sites to optimize photosynthesis and move away from excessively illuminated areas to protect the photosynthetic machinery1. Although this movement of chloroplasts in response to light has been known for over a century, the photoreceptor mediating this process has not been identified. The Arabidopsis gene NPL1 (ref. 2) is a paralogue of the NPH1 gene, which encodes phototropin, a photoreceptor for phototropic bending3. Here we show that NPL1 is required for chloroplast relocation induced by blue light. A loss-of-function npl1 mutant showed no chloroplast avoidance response in strong blue light, whereas the accumulation of chloroplasts in weak light was normal. These results indicate that NPL1 may function as a photoreceptor mediating chloroplast relocation.

Suggested Citation

  • Jose A. Jarillo & Halina Gabrys & Juan Capel & Jose M. Alonso & Joseph R. Ecker & Anthony R. Cashmore, 2001. "Phototropin-related NPL1 controls chloroplast relocation induced by blue light," Nature, Nature, vol. 410(6831), pages 952-954, April.
    • Handle: RePEc:nat:nature:v:410:y:2001:i:6831:d:10.1038_35073622
    DOI: 10.1038/35073622
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    Cited by:

    1. Huan Zhang & Xiaofeng Xiong & Kangning Guo & Mengyuan Zheng & Tianjun Cao & Yuqing Yang & Jiaojiao Song & Jie Cen & Jiahuan Zhang & Yanyou Jiang & Shan Feng & Lijin Tian & Xiaobo Li, 2024. "A rapid aureochrome opto-switch enables diatom acclimation to dynamic light," Nature Communications, Nature, vol. 15(1), pages 1-18, December.

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