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PIF7 is a master regulator of thermomorphogenesis in shade

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  • Yogev Burko

    (Institute of Plant Sciences, ARO, Volcani Institute
    Howard Hughes Medical Institute, Salk Institute for Biological Studies
    Plant Biology Laboratory, Salk Institute for Biological Studies)

  • Björn Christopher Willige

    (Howard Hughes Medical Institute, Salk Institute for Biological Studies
    Plant Biology Laboratory, Salk Institute for Biological Studies)

  • Adam Seluzicki

    (Howard Hughes Medical Institute, Salk Institute for Biological Studies
    Plant Biology Laboratory, Salk Institute for Biological Studies)

  • Ondřej Novák

    (Laboratory of Growth Regulators, Faculty of Science, Palacký University and Institute of Experimental Botany, The Czech Academy of Sciences
    Swedish University of Agricultural Sciences)

  • Karin Ljung

    (Swedish University of Agricultural Sciences)

  • Joanne Chory

    (Howard Hughes Medical Institute, Salk Institute for Biological Studies
    Plant Biology Laboratory, Salk Institute for Biological Studies)

Abstract

The size of plant organs is highly responsive to environmental conditions. The plant’s embryonic stem, or hypocotyl, displays phenotypic plasticity, in response to light and temperature. The hypocotyl of shade avoiding species elongates to outcompete neighboring plants and secure access to sunlight. Similar elongation occurs in high temperature. However, it is poorly understood how environmental light and temperature cues interact to effect plant growth. We found that shade combined with warm temperature produces a synergistic hypocotyl growth response that dependent on PHYTOCHROME-INTERACTING FACTOR 7 (PIF7) and auxin. This unique but agriculturally relevant scenario was almost totally independent on PIF4 activity. We show that warm temperature is sufficient to promote PIF7 DNA binding but not transcriptional activation and we demonstrate that additional, unknown factor/s must be working downstream of the phyB-PIF-auxin module. Our findings will improve the predictions of how plants will respond to increased ambient temperatures when grown at high density.

Suggested Citation

  • Yogev Burko & Björn Christopher Willige & Adam Seluzicki & Ondřej Novák & Karin Ljung & Joanne Chory, 2022. "PIF7 is a master regulator of thermomorphogenesis in shade," Nature Communications, Nature, vol. 13(1), pages 1-14, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-32585-6
    DOI: 10.1038/s41467-022-32585-6
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    References listed on IDEAS

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    1. Yongjian Qiu & Meina Li & Ruth Jean-Ae Kim & Carisha M. Moore & Meng Chen, 2019. "Daytime temperature is sensed by phytochrome B in Arabidopsis through a transcriptional activator HEMERA," Nature Communications, Nature, vol. 10(1), pages 1-13, December.
    2. Renhou Wang & Yi Zhang & Martin Kieffer & Hong Yu & Stefan Kepinski & Mark Estelle, 2016. "HSP90 regulates temperature-dependent seedling growth in Arabidopsis by stabilizing the auxin co-receptor F-box protein TIR1," Nature Communications, Nature, vol. 7(1), pages 1-11, April.
    3. Renhou Wang & Yi Zhang & Martin Kieffer & Hong Yu & Stefan Kepinski & Mark Estelle, 2016. "Correction: Corrigendum: HSP90 regulates temperature-dependent seedling growth in Arabidopsis by stabilizing the auxin co-receptor F-box protein TIR1," Nature Communications, Nature, vol. 7(1), pages 1-1, September.
    4. S. Vinod Kumar & Doris Lucyshyn & Katja E. Jaeger & Enriqueta Alós & Elizabeth Alvey & Nicholas P. Harberd & Philip A. Wigge, 2012. "Transcription factor PIF4 controls the thermosensory activation of flowering," Nature, Nature, vol. 484(7393), pages 242-245, April.
    5. Lam Dai Vu & Xiangyu Xu & Tingting Zhu & Lixia Pan & Martijn van Zanten & Dorrit de Jong & Yaowei Wang & Tim Vanremoortele & Anna M. Locke & Brigitte van de Cotte & Nancy De Winne & Elisabeth Stes & E, 2021. "The membrane-localized protein kinase MAP4K4/TOT3 regulates thermomorphogenesis," Nature Communications, Nature, vol. 12(1), pages 1-14, December.
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    Cited by:

    1. Qing Sang & Lusheng Fan & Tianxiang Liu & Yongjian Qiu & Juan Du & Beixin Mo & Meng Chen & Xuemei Chen, 2023. "MicroRNA156 conditions auxin sensitivity to enable growth plasticity in response to environmental changes in Arabidopsis," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    2. Shuai Sun & Zhiqiang Liu & Xiaotian Wang & Jia Song & Siyu Fang & Jisheng Kong & Ren Li & Huanzhong Wang & Xia Cui, 2024. "Genetic control of thermomorphogenesis in tomato inflorescences," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    3. Sanghwa Lee & Julia Showalter & Ling Zhang & Gaëlle Cassin-Ross & Hatem Rouached & Wolfgang Busch, 2024. "Nutrient levels control root growth responses to high ambient temperature in plants," Nature Communications, Nature, vol. 15(1), pages 1-15, December.
    4. Qican Cheng & Yue Zeng & Sha Huang & Chuanwei Yang & Yu Xie & Wen-Hui Shen & Lin Li, 2024. "PHYTOCHROME-INTERACTING FACTOR 7 and RELATIVE OF EARLY FLOWERING 6 act in shade avoidance memory in Arabidopsis," Nature Communications, Nature, vol. 15(1), pages 1-15, December.
    5. Juan Du & Keunhwa Kim & Meng Chen, 2024. "Distinguishing individual photobodies using Oligopaints reveals thermo-sensitive and -insensitive phytochrome B condensation at distinct subnuclear locations," Nature Communications, Nature, vol. 15(1), pages 1-12, December.

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