Arabidopsis bZIP18 and bZIP52 Accumulate in Nuclei Following Heat Stress where They Regulate the Expression of a Similar Set of Genes

Wiese, Anna Johanna; Steinbachová, Lenka; Timofejeva, Ljudmilla; Čermák, Vojtěch; Klodová, Božena; Ganji, Ranjani Sri; Limones-Mendez, Mariana; Bokvaj, Pavel; Hafidh, Said; Potěšil, David; Honys, David

doi:10.3390/ijms22020530

Cited by 18 publications

(12 citation statements)

References 70 publications

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“…Interestingly, two pollen‐expressed cytoplasm‐localized bZIP TFs, bZIP18 and bZIP52, were recently shown in Arabidopsis seedlings to accumulate in nuclei following HS. However, their re‐localization was triggered by dephosphorylation, probably at the serine residues within their conserved HXRXXS motifs (Wiese et al ., 2021 ).…”

Section: Stress Sensing – Setting In Motion the Heat Stress Response ...mentioning

confidence: 99%

Heat stress response mechanisms in pollen development

et al. 2021

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Being rooted in place, plants are faced with the challenge of responding to unfavourable local conditions. One such condition, heat stress, contributes massively to crop losses globally. Heatwaves are predicted to increase, and it is of vital importance to generate crops that are tolerant to not only heat stress but also to several other abiotic stresses (e.g. drought stress, salinity stress) to ensure that global food security is protected. A better understanding of the molecular mechanisms that underlie the temperature stress response in pollen will be a significant step towards developing effective breeding strategies for high and stable production in crop plants. While most studies have focused on the vegetative phase of plant growth to understand heat stress tolerance, it is the reproductive phase that requires more attention as it is more sensitive to elevated temperatures. Every phase of reproductive development is affected by environmental challenges, including pollen and ovule development, pollen tube growth, male-female cross-talk, fertilization, and embryo development. In this review we summarize how pollen is affected by heat stress and the molecular mechanisms employed during the stress period, as revealed by classical and -omics experiments.

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Section: Stress Sensing – Setting In Motion the Heat Stress Response ...mentioning

confidence: 99%

Heat stress response mechanisms in pollen development

et al. 2021

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“…Wiese (IEB) demonstrated that upon heat stress, two bZIP transcription factors, bZIP18 and bZIP52, undergo dephosphorylation and relocate into the nucleus. Here, bZIP18 and bZIP52 regulate the transcription of several common genes, including lncRNA genes that are elevated in response to heat treatment (Wiese et al 2021). These results demonstrate that phosphorylation can mediate extra-nuclear sequestration of transcription factors that orchestrate heat stress response, and perhaps suggest a more general mechanism of stress response attenuation under optimal conditions but rapid transcriptional response upon exposure to adverse environmental conditions.…”

Section: Chromatin Regulates Plant Development and Environmental Resp...mentioning

confidence: 76%

The Czech Plant Nucleus Workshop 2021

Pečinka¹,

Schrumpfová²,

Fischer³

et al. 2022

Biol. plant.

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“…Post-translational modifications such as phosphorylation and sumoylation also contribute to the regulation of HSR expression and HS memory (Yoo et al, 2006;Wiese et al, 2021). FGT2 encodes a TYPE-2C PROTEIN PHOSPHATASE (PP2C) and interacts with PHOSPHOLIPASE D α2 (PLDα2).…”

Section: Heat Stressmentioning

confidence: 99%

Transcriptional memory and response to adverse temperatures in plants

Xie

Tang

Yan

et al. 2021

J. Zhejiang Univ. Sci. B

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Temperature is one of the major environmental signals controlling plant development, geographical distribution, and seasonal behavior. Plants perceive adverse temperatures, such as high, low, and freezing temperatures, as stressful signals that can cause physiological defects and even death. As sessile organisms, plants have evolved sophisticated mechanisms to adapt to recurring stressful environments through changing gene expression or transcriptional reprogramming. Transcriptional memory refers to the ability of primed plants to remember previously experienced stress and acquire enhanced tolerance to similar or different stresses. Epigenetic modifications mediate transcriptional memory and play a key role in adapting to adverse temperatures. Understanding the mechanisms of the formation, maintenance, and resetting of stress-induced transcriptional memory will not only enable us to understand why there is a trade-off between plant defense and growth, but also provide a theoretical basis for generating stress-tolerant crops optimized for future climate change. In this review, we summarize recent advances in dissecting the mechanisms of plant transcriptional memory in response to adverse temperatures, based mainly on studies of the model plant Arabidopsis thaliana. We also discuss remaining questions that are important for further understanding the mechanisms of transcriptional memory during the adverse temperature response.

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Arabidopsis bZIP18 and bZIP52 Accumulate in Nuclei Following Heat Stress where They Regulate the Expression of a Similar Set of Genes

Cited by 18 publications

References 70 publications

Heat stress response mechanisms in pollen development

Heat stress response mechanisms in pollen development

The Czech Plant Nucleus Workshop 2021

Transcriptional memory and response to adverse temperatures in plants

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