<scp>HSP90s</scp> are required for hypocotyl elongation during skotomorphogenesis and thermomorphogenesis via the <scp>COP1</scp>–<scp>ELF3</scp>–<scp>PIF4</scp> pathway in Arabidopsis

Zeng, Yuan; Wang, Jiayu; Xie, Yu; Zhu, Tongdan; Liu, Leyi; Liu, Lin

doi:10.1111/nph.18776

Cited by 8 publications

(5 citation statements)

References 53 publications

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“…Similarly, PIF4 directly activates the auxin biosynthetic gene YUCCA8 ( YUC8 ) to control hypocotyl elongation (Sun et al, 2012), while the petiole phenotypes in elf3 mutants depend on PIF4-PIF5 mediated GA abundance (Filo et al, 2015). Heat shock proteins also modulate light and temperature signaling via the ELF3-PIF4 module to affect the hypocotyl growth (Zeng et al, 2023). MSL10 participates in the wound-triggered early signal transduction pathway (Zou et al, 2016), while SLAH3 respond to flooding stress in A. thaliana (Lehmann et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Water wisteria genome reveals environmental adaptation and heterophylly regulation in amphibious plants

Zhao

Yang

et al. 2022

Preprint

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The phenomenon by which a single plant dramatically changes its leaf shape in response to the surrounding environment is called heterophylly, an ideal model for the study of plant phenotypic adaptation to environment. Hygrophila difformis (Acanthaceae), also known as Water-Wisteria, has recently merged as a model to study heterophylly due to its typical phenotypic plasticity to various ecological factors. Here, we generated a chromosome-level genome of H. difformis (scaffold N50: 57.63Mb, and genome size: 831.53 Mb) and predicted 36,099 protein-coding genes mainly on 15 pseudochromosomes. H. difformis evolved a gene expansion for its acclimation to the amphibious environment. RNA-seq analysis revealed that genes relative to environmental stimuli, leaf development and other processes are elaborated, regulating its morphological and physiological acclimations to the changing environments. Finally, we identified candidate genes under different ecological factors, and illuminated the roles of LATE MERISTEM IDENTITY 1 (LMI1) on the regulation of heterophylly in H. difformis. Our study contributes the first genome and transcriptome for Hygrophila, establishing H. difformis as a model for the relationships of ecological factors and plant morphological features. We provide new insights into the adaptability of plants in evolution, along with potential resources for trait improvement in crops.

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Section: Discussionmentioning

confidence: 99%

Water wisteria genome reveals environmental adaptation and heterophylly regulation in amphibious plants

Zhao

Yang

et al. 2022

Preprint

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“…This results in decreased EC activity and hence increased expression of PIF4, a central regulator of thermomorphogenesis 130,139 . In addition, HEAT SHOCK PROTEIN 90 (HSP90) has been implicated in promoting degradation of ELF3 at elevated temperature 140 .…”

Section: The Effect Of Temperature and Flooding On Hypocotyl Elongationmentioning

confidence: 99%

Environmental Control of Hypocotyl Elongation

Krahmer,

Fankhauser

2024

Annual Review of Plant Biology

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The hypocotyl is the embryonic stem connecting the primary root to the cotyledons. Hypocotyl length varies tremendously depending on the conditions. This developmental plasticity and the simplicity of the organ explain its success as a model for growth regulation. Light and temperature are prominent growth-controlling cues, using shared signaling elements. Mechanisms controlling hypocotyl elongation in etiolated seedlings reaching the light differ from those in photoautotrophic seedlings. However, many common growth regulators intervene in both situations. Multiple photoreceptors including phytochromes, which also respond to temperature, control the activity of several transcription factors, thereby eliciting rapid transcriptional reprogramming. Hypocotyl growth often depends on sensing in green tissues and interorgan communication comprising auxin. Hypocotyl auxin, in conjunction with other hormones, determines epidermal cell elongation. Plants facing cues with opposite effects on growth control hypocotyl elongation through intricate mechanisms. We discuss the status of the field and end by highlighting open questions. Expected final online publication date for the Annual Review of Plant Biology, Volume 75 is May 2024. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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“…Although the relationship between the low-temperature stress response and the circadian clock has been widely documented, the circadian clock contribution to the heat stress response remains largely unknown. Research concerning plant clock genes involved in heat stress adaptation is ongoing [60][61][62][63].…”

Section: Responsive Transcriptomes Revealing a Diurnal Response To He...mentioning

confidence: 99%

The Roles of Circadian Clock Genes in Plant Temperature Stress Responses

Jang,

Lee,

Kim

et al. 2024

IJMS

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Plants monitor day length and memorize changes in temperature signals throughout the day, creating circadian rhythms that support the timely control of physiological and metabolic processes. The DEHYDRATION-RESPONSE ELEMENT-BINDING PROTEIN 1/C-REPEAT BINDING FACTOR (DREB1/CBF) transcription factors are known as master regulators for the acquisition of cold stress tolerance, whereas PHYTOCHROME INTERACTING FACTOR 4 (PIF4) is involved in plant adaptation to heat stress through thermomorphogenesis. Recent studies have shown that circadian clock genes control plant responses to temperature. Temperature-responsive transcriptomes show a diurnal cycle and peak expression levels at specific times of throughout the day. Circadian clock genes play essential roles in allowing plants to maintain homeostasis by accommodating temperature changes within the normal temperature range or by altering protein properties and morphogenesis at the cellular level for plant survival and growth under temperature stress conditions. Recent studies revealed that the central oscillator genes CIRCADIAN CLOCK ASSOCIATED 1/LATE ELONGATED HYPOCOTYL (CCA1/LHY) and PSEUDO-RESPONSE REGULATOR5/7/9 (PRR5/7/9), as well as the EVENING COMPLEX (EC) genes REVEILLE4/REVEILLE8 (REV4/REV8), were involved in the DREB1 pathway of the cold signaling transcription factor and regulated the thermomorphogenesis gene PIF4. Further studies showed that another central oscillator, TIMING OF CAB EXPRESSION 1 (TOC1), and the regulatory protein ZEITLUPE (ZTL) are also involved. These studies led to attempts to utilize circadian clock genes for the acquisition of temperature-stress resistance in crops. In this review, we highlight circadian rhythm regulation and the clock genes involved in plant responses to temperature changes, as well as strategies for plant survival in a rapidly changing global climate.

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HSP90s are required for hypocotyl elongation during skotomorphogenesis and thermomorphogenesis via the COP1–ELF3–PIF4 pathway in Arabidopsis

Cited by 8 publications

References 53 publications

Water wisteria genome reveals environmental adaptation and heterophylly regulation in amphibious plants

Water wisteria genome reveals environmental adaptation and heterophylly regulation in amphibious plants

Environmental Control of Hypocotyl Elongation

The Roles of Circadian Clock Genes in Plant Temperature Stress Responses

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