Developmental Programming of Thermonastic Leaf Movement

Park, Young-Joon; Lee, Hyo‐Jun; Gil, Kyung-Eun; Kim, Jae Young; Lee, June-Hee; Lee, Hyodong; Cho, Hyung-Taeg; Vu, Lam Dai; Smet, Ive De; Park, Chung‐Mo

doi:10.1104/pp.19.00139

Cited by 88 publications

(103 citation statements)

References 48 publications

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“…So far, it is unknown if and how an abaxial/adaxial auxin response gradient builds up in the petiole base itself in response to auxin coming from the leaf tip under low R:FR conditions. However, this has been studied in the hyponastic growth response to elevated ambient temperature [77]. In such conditions, PIN3 was shown to concentrate on the outer side of the abaxial endodermis [77], suggesting directed auxin flow towards the elongating, abaxial side of the petiole (Figure 2).…”

Section: Photoreceptor Control Of Auxin Transportmentioning

confidence: 99%

Photoreceptors Regulate Plant Developmental Plasticity through Auxin

Küpers

Oskam

Pierik

2020

Plants

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Light absorption by plants changes the composition of light inside vegetation. Blue (B) and red (R) light are used for photosynthesis whereas far-red (FR) and green light are reflected. A combination of UV-B, blue and R:FR-responsive photoreceptors collectively measures the light and temperature environment and adjusts plant development accordingly. This developmental plasticity to photoreceptor signals is largely regulated through the phytohormone auxin. The phytochrome, cryptochrome and UV Resistance Locus 8 (UVR8) photoreceptors are inactivated in shade and/or elevated temperature, which releases their repression of Phytochrome Interacting Factor (PIF) transcription factors. Active PIFs stimulate auxin synthesis and reinforce auxin signalling responses through direct interaction with Auxin Response Factors (ARFs). It was recently discovered that shade-induced hypocotyl elongation and petiole hyponasty depend on long-distance auxin transport towards target cells from the cotyledon and leaf tip, respectively. Other responses, such as phototropic bending, are regulated by auxin transport and signalling across only a few cell layers. In addition, photoreceptors can directly interact with components in the auxin signalling pathway, such as Auxin/Indole Acetic Acids (AUX/IAAs) and ARFs. Here we will discuss the complex interactions between photoreceptor and auxin signalling, addressing both mechanisms and consequences of these highly interconnected pathways.

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Section: Photoreceptor Control Of Auxin Transportmentioning

confidence: 99%

Photoreceptors Regulate Plant Developmental Plasticity through Auxin

Küpers

Oskam

Pierik

2020

Plants

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“…At high temperature, the elongation of the hypocotyl and the upward bending of the leaves in seedlings (or thermonastic movement) gives plants an advantage to maximize cooling capacity by moving away from heatabsorbing soil and having better access to cooling air streams ( Fig. 1; Gray et al, 1998;Crawford et al, 2012;Bridge et al, 2013;Quint et al, 2016;Park et al, 2019). The phytohormone auxin contributes to this response by inducing the expression of AUXIN RESPONSE FACTORs, which activate cell expansion-promoting genes in the hypocotyl epidermis (Reed et al, 2018).…”

Section: Phytohormones Regulate Thermomorphogenic Growth Of Seedlingsmentioning

confidence: 99%

“…2; Ibañez et al, 2018;Bellstaedt et al, 2019). Furthermore, auxin biosynthesis and redistribution play similar roles in the regulation of thermonastic leaf movement (Park et al, 2019). Excision of cotyledon or leaf blades abolishes thermoresponsive cell elongation in the abaxial petiole zone.…”

Section: Phytohormones Regulate Thermomorphogenic Growth Of Seedlingsmentioning

confidence: 99%

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Developmental Plasticity at High Temperature

Gevaert

et al. 2019

Plant Physiol.

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“…In response to changes in ambient temperature, plants show multiple phenotypes such as stem elongation, leaf hyponasty, and flowering [ 19 , 20 , 21 , 22 ]. These thermal responses are regulated by various genes [ 22 ].…”

Section: Regulation Of Gene Expression By Temperature-dependent Almentioning

confidence: 99%

Temperature-Dependent Alternative Splicing of Precursor mRNAs and Its Biological Significance: A Review Focused on Post-Transcriptional Regulation of a Cold Shock Protein Gene in Hibernating Mammals

Shiina

Shimizu

2020

IJMS

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Multiple mRNA isoforms are often generated during processing such as alternative splicing of precursor mRNAs (pre-mRNA), resulting in a diversity of generated proteins. Alternative splicing is an essential mechanism for the functional complexity of eukaryotes. Temperature, which is involved in all life activities at various levels, is one of regulatory factors for controlling patterns of alternative splicing. Temperature-dependent alternative splicing is associated with various phenotypes such as flowering and circadian clock in plants and sex determination in poikilothermic animals. In some specific situations, temperature-dependent alternative splicing can be evoked even in homothermal animals. For example, the splicing pattern of mRNA for a cold shock protein, cold-inducible RNA-binding protein (CIRP or CIRBP), is changed in response to a marked drop in body temperature during hibernation of hamsters. In this review, we describe the current knowledge about mechanisms and functions of temperature-dependent alternative splicing in plants and animals. Then we discuss the physiological significance of hypothermia-induced alternative splicing of a cold shock protein gene in hibernating and non-hibernating animals.

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Developmental Programming of Thermonastic Leaf Movement

Cited by 88 publications

References 48 publications

Photoreceptors Regulate Plant Developmental Plasticity through Auxin

Photoreceptors Regulate Plant Developmental Plasticity through Auxin

Developmental Plasticity at High Temperature

Temperature-Dependent Alternative Splicing of Precursor mRNAs and Its Biological Significance: A Review Focused on Post-Transcriptional Regulation of a Cold Shock Protein Gene in Hibernating Mammals

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