Tetrapyrrole-based drought stress signalling

Plant Biotechnology Journal
Dilrukshi S K NagahatennaRyan Whitford

Abstract

Tetrapyrroles such as chlorophyll and heme play a vital role in primary plant metabolic processes such as photosynthesis and respiration. Over the past decades, extensive genetic and molecular analyses have provided valuable insights into the complex regulatory network of the tetrapyrrole biosynthesis. However, tetrapyrroles are also implicated in abiotic stress tolerance, although the mechanisms are largely unknown. With recent reports demonstrating that modified tetrapyrrole biosynthesis in plants confers wilting avoidance, a component physiological trait to drought tolerance, it is now timely that this pathway be reviewed in the context of drought stress signalling. In this review, the significance of tetrapyrrole biosynthesis under drought stress is addressed, with particular emphasis on the inter-relationships with major stress signalling cascades driven by reactive oxygen species (ROS) and organellar retrograde signalling. We propose that unlike the chlorophyll branch, the heme branch of the pathway plays a key role in mediating intracellular drought stress signalling and stimulating ROS detoxification under drought stress. Determining how the tetrapyrrole biosynthetic pathway is involved in stress signalling provides an ...Continue Reading

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Citations

Apr 12, 2016·Frontiers in Plant Science·Ai-Zhen Sun, Fang-Qing Guo
Nov 4, 2016·Frontiers in Plant Science·Robert M Larkin
Mar 1, 2017·Plant, Cell & Environment·Deqiang DuanmuJ Clark Lagarias
Apr 28, 2020·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Philipp GirrHarald Paulsen
Apr 6, 2017·Frontiers in Plant Science·Dario LeisterTatjana Kleine
Jun 25, 2021·The Plant Journal : for Cell and Molecular Biology·Joanna K PolkoJoseph J Kieber
Sep 2, 2021·The Plant Journal : for Cell and Molecular Biology·Jie Tang, Diane C Bassham
Oct 16, 2021·Physiologia Plantarum·Pratibha GourSaurabh Raghuvanshi

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Methods Mentioned

BETA
dissection
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