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Visualising abscisic acid dynamics at low humidity in planta using ABACUS2

Nature Plants volume 9, pages 1016–1017 (2023)Cite this article

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ABACUS2 FRET biosensors allow an unparalleled live view of the dynamics of the plant hormone abscisic acid in plants. Well-watered roots accumulate abscisic acid in growing cells when shoots become dehydrated — a response that is essential to maintain root growth in low-humidity conditions.

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Fig. 1: ABACUS2-400n responds to ABA in planta, and ABA is required for root growth at low humidity.

References

  1. Jones, A. M. A new look at stress: abscisic acid patterns and dynamics at high‐resolution. New Phytol 210, 38–44 (2016). A review article that describes the transport, metabolism and role of ABA in stress responses.

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  2. Jones, A. M. et al. Abscisic acid dynamics in roots detected with genetically encoded FRET sensors. Elife 3, e01741 (2014). This paper reports the first generation ABACUS1 sensors for ABA.

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This is a summary of: Rowe, J. et al. Next-generation ABACUS biosensors reveal cellular ABA dynamics driving root growth at low aerial humidity. Nat. Plants https://doi.org/10.1038/s41477-023-01447-4 (2023).

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Visualising abscisic acid dynamics at low humidity in planta using ABACUS2. Nat. Plants 9, 1016–1017 (2023). https://doi.org/10.1038/s41477-023-01469-y

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