Integration of light and temperature signaling pathways in plants

Qi, Lijuan; Shi, Yiting; Terzaghi, William; Yang, Shuhua; Li, Jigang

doi:10.1111/jipb.13216

Cited by 31 publications

(21 citation statements)

References 200 publications

(372 reference statements)

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“…However, our mechanistic understanding of temperature-sensitive root growth is rather fragmentary. Given that roots grow below the surface, it seems unlikely that temperature-sensitive parts of photomorphogenesis pathways, which are central to shoot thermomorphogenesis (reviewed in Qi et al, 2022), represent the primary temperature sensing pathway also in roots. Several phytohormones have been suggested to play a role in root thermomorphogenesis.…”

Section: Introductionmentioning

confidence: 99%

Auxin-dependent acceleration of cell division rates regulates root growth at elevated temperature

Quint

Bellstaedt

et al. 2022

Preprint

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Roots are highly plastic organs enabling plants to acclimate to a changing below-ground environment. In addition to abiotic factors like nutrients or mechanical resistance, plant roots also respond to temperature variation. Below the heat stress threshold, Arabidopsis thaliana seedlings react to elevated temperature by promoting primary root growth, possibly to reach deeper soil regions with potentially better water saturation. While above-ground thermomorphogenesis is enabled by thermo-sensitive cell elongation, it was unknown how temperature modulates root growth. We here show that roots are able to sense and respond to elevated temperature independent of shoot-derived signals. An unknown root thermosensor seems to employ auxin as a messenger to promote primary root growth. Growth is primarily achieved by accelerating cell division rates in the root apical meristem, likely maintained via temperature-sensitive organization of the polar auxin transport system. Hence, the primary cellular target of elevated ambient temperature differs fundamentally between root and shoot tissues, while the messenger auxin that relays temperature information to elongating or dividing cells, respectively, remains the same.

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Section: Introductionmentioning

confidence: 99%

Auxin-dependent acceleration of cell division rates regulates root growth at elevated temperature

Quint

Bellstaedt

et al. 2022

Preprint

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“…Thus, unraveling the exact molecular mechanisms by which light and temperatures coordinately regulate the various secondary metabolite biosynthesis and biomass production is a key fundamental issue. Although increasing studies have revealed the regulatory mechanisms underlying plants sense and response to light and temperature signals in controlled laboratory conditions (Ding and Yang 2022;Qi et al 2022), achieving a comprehensive understating of plants in Much of our fundamental knowledge of light and temperature transduction was gained through the study of the model plant Arabidopsis thaliana. However, basic knowledge of light and temperature-mediated signaling in crop plants such as wheat, rape, rice, and soybean is grossly incomprehensive.…”

Section: Concluding Marks and Future Perspectivesmentioning

confidence: 99%

PIFs- and COP1-HY5-mediated temperature signaling in higher plants

et al. 2022

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Plants have to cope with the surrounding changing environmental stimuli to optimize their physiological and developmental response throughout their entire life cycle. Light and temperature are two critical environmental cues that fluctuate greatly during day-night cycles and seasonal changes. These two external signals coordinately control the plant growth and development. Distinct spectrum of light signals are perceived by a group of wavelength-specific photoreceptors in plants. PIFs and COP1-HY5 are two predominant signaling hubs that control the expression of a large number of light-responsive genes and subsequent light-mediated development in plants. In parallel, plants also transmit low or warm temperature signals to these two regulatory modules that precisely modulate the responsiveness of low or warm temperatures. The core component of circadian clock ELF3 integrates signals from light and warm temperatures to regulate physiological and developmental processes in plants. In this review, we summarize and discuss recent advances and progresses on PIFs-, COP1-HY5- and ELF3-mediated light, low or warm temperature signaling, and highlight emerging insights regarding the interactions between light and low or warm temperature signal transduction pathways in the control of plant growth.

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“…Light and temperature are two major environmental factors that profoundly influence the growth, development, and geographic distribution of plants, as well as the productivity of crop species (1)(2)(3). Plants use dynamic fluctuations in light and temperature as major information cues to optimize their growth and development programs to adapt to the ever-changing environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

The heat response regulators HSFA1s promote Arabidopsis thermomorphogenesis via stabilizing PIF4 during the day

Tan,

Chen,

Yue

et al. 2023

Sci. Adv.

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During summer, plants often experience increased light inputs and high temperatures, two major environmental factors with contrasting effects on thermomorphological traits. The integration of light and temperature signaling to control thermomorphogenesis in plants is critical for their acclimation in such conditions, but the underlying mechanisms remain largely unclear. We found that heat shock transcription factor 1d (HSFA1d) and its homologs are necessary for plant thermomorphogenesis during the day. In response to warm daytime temperature, HSFA1s markedly accumulate and move into the nucleus where they interact with phytochrome-interacting factor 4 (PIF4) and stabilize PIF4 by interfering with phytochrome B–PIF4 interaction. Moreover, we found that the HSFA1d nuclear localization under warm daytime temperature is mediated by constitutive photomorphogenic 1–repressed GSK3-like kinase BIN2. These results support a regulatory mechanism for thermomorphogenesis in the daytime mediated by the HSFA1s-PIF4 module and uncover HSFA1s as critical regulators integrating light and temperature signaling for a better acclimation of plants to the summer high temperature.

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Integration of light and temperature signaling pathways in plants

Cited by 31 publications

References 200 publications

Auxin-dependent acceleration of cell division rates regulates root growth at elevated temperature

Auxin-dependent acceleration of cell division rates regulates root growth at elevated temperature

PIFs- and COP1-HY5-mediated temperature signaling in higher plants

The heat response regulators HSFA1s promote Arabidopsis thermomorphogenesis via stabilizing PIF4 during the day

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