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Light- and hormone-mediated development in non-flowering plants: An overview

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Main Conclusion

Light, hormones and their interaction regulate different aspects of development in non-flowering plants. They might have played a role in the evolution of different plant groups by conferring specific adaptive evolutionary changes.

Abstract

Plants are sessile organisms. Unlike animals, they lack the opportunity to abandon their habitat in unfavorable conditions. They respond to different environmental cues and adapt accordingly to control their growth and developmental pattern. While phytohormones are known to be internal regulators of plant development, light is a major environmental signal that shapes plant processes. It is plausible that light-hormone crosstalk might have played an important role in plant evolution. But how the crosstalk between light and phytohormone signaling pathways might have shaped the plant evolution is unclear. One of the possible reasons is that flowering plants have been studied extensively in context of plant development, which cannot serve the purpose of evolutionary comparisons. In order to elucidate the role of light, hormone and their crosstalk in the evolutionary adaptation in plant kingdom, one needs to understand various light- and hormone-mediated processes in diverse non-flowering plants. This review is an attempt to outline major light- and phytohormone-mediated responses in non-flowering plant groups such as algae, bryophytes, pteridophytes and gymnosperms.

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Acknowledgements

The authors thank Dr. Sony Kumari for suggestions, critical comments and valuable inputs during the preparation of the manuscript. The authors thank Dr. Chandan Goswami, Prof. Anath Bandhu Das, Ms. Nidhi Mishra, Dr. Nitesh Kumar Mund and Dr. Madhusmita Panigrahy for suggesting corrections. KCSP acknowledges funding from the Department of Atomic Energy (DAE), Government of India and CSIR grant no. 38(1495)/19/EMR-II. DPB acknowledges HBNI and DAE for fellowship. The authors declare no conflict of interest.

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Correspondence to Kishore Chandra Sekhar Panigrahi.

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Communicated by Gerhard Leubner.

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Biswal, D.P., Panigrahi, K.C.S. Light- and hormone-mediated development in non-flowering plants: An overview. Planta 253, 1 (2021). https://doi.org/10.1007/s00425-020-03501-3

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  • DOI: https://doi.org/10.1007/s00425-020-03501-3

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