Young-Joon Park
@snu.ac.kr
Scopus Publications
- Tomato arabinosyltransferase prevents precocious senescence
Ho-Young Jeong, Yoonseo Lim, Myeong-Gyun Seo, Soon Ju Park, Chanhui Lee, et al.
Horticultural Plant Journal, 2025 - Evolutionary conservation of receptor compensation for stem cell homeostasis in Solanaceae plants
Myeong-Gyun Seo, Yoonseo Lim, Anat Hendelman, Gina Robitaille, Hong Kwan Beak, et al.
Horticulture Research, 2024
Stem cell homeostasis is pivotal for continuous and programmed formation of organs in plants. The precise control of meristem proliferation is mediated by the evolutionarily conserved signaling that encompasses complex interactions among multiple peptide ligands and their receptor-like kinases. Here, we identified compensation mechanisms involving the CLAVATA1 (CLV1) receptor and its paralogs, BARELY ANY MERISTEMs (BAMs), for stem cell proliferation in two Solanaceae species, tomato and groundcherry. Genetic analyses of higher-order mutants deficient in multiple receptor genes, generated via CRISPR-Cas9 genome editing, reveal that tomato SlBAM1 and SlBAM2 compensate for slclv1 mutations. Unlike the compensatory responses between orthologous receptors observed in Arabidopsis, tomato slclv1 mutations do not trigger transcriptional upregulation of four SlBAM genes. The compensation mechanisms within receptors are also conserved in groundcherry, and critical amino acid residues of the receptors associated with the physical interaction with peptide ligands are highly conserved in Solanaceae plants. Our findings demonstrate that the evolutionary conservation of both compensation mechanisms and critical coding sequences between receptor-like kinases provides a strong buffering capacity during stem cell homeostasis in tomato and groundcherry. - Environmentally adaptive reshaping of plant photomorphogenesis by karrikin and strigolactone signaling
Young‐Joon Park, Bo Eun Nam, Chung‐Mo Park
Journal of Integrative Plant Biology, 2024
Coordinated morphogenic adaptation of growing plants is critical for their survival and propagation under fluctuating environments. Plant morphogenic responses to light and warm temperatures, termed photomorphogenesis and thermomorphogenesis, respectively, have been extensively studied in recent decades. During photomorphogenesis, plants actively reshape their growth and developmental patterns to cope with changes in light regimes. Accordingly, photomorphogenesis is closely associated with diverse growth hormonal cues. Notably, accumulating evidence indicates that light‐directed morphogenesis is profoundly affected by two recently identified phytochemicals, karrikins (KARs) and strigolactones (SLs). KARs and SLs are structurally related butenolides acting as signaling molecules during a variety of developmental steps, including seed germination. Their receptors and signaling mediators have been identified, and associated working mechanisms have been explored using gene‐deficient mutants in various plant species. Of particular interest is that the KAR and SL signaling pathways play important roles in environmental responses, among which their linkages with photomorphogenesis are most comprehensively studied during seedling establishment. In this review, we focus on how the phytochemical and light signals converge on the optimization of morphogenic fitness. We also discuss molecular mechanisms underlying the signaling crosstalks with an aim of developing potential ways to improve crop productivity under climate changes. - How the sunflower gets its rings
Young-Joon Park, P. Seo
Elife, 2023
The circadian clock may help to control the development patterns which allow the florets on a sunflower head to go through their final stages of maturation at precisely the right time. - SMAX1 potentiates phytochrome B-mediated hypocotyl thermomorphogenesis
Young-Joon Park, Jae Young Kim, Chung-Mo Park
Plant Cell, 2022
Plant thermosensors help optimize plant development and architecture for ambient temperatures, and morphogenic adaptation to warm temperatures has been extensively studied in recent years. Phytochrome B (phyB)-mediated thermosensing and the gene regulatory networks governing thermomorphogenic responses are well understood at the molecular level. However, it is unknown how plants manage their responsiveness to fluctuating temperatures in inducing thermomorphogenic behaviors. Here, we demonstrate that SUPPRESSOR OF MAX2 1 (SMAX1), known as a karrikin signaling repressor, enhances the thermosensitivity of hypocotyl morphogenesis in Arabidopsis thaliana. Hypocotyl thermomorphogenesis was largely disrupted in SMAX1-deficient mutants. SMAX1 interacts with phyB to alleviate its suppressive effects on the transcription factor activity of PHYTOCHROME-INTERACTING FACTOR 4 (PIF4), promoting hypocotyl thermomorphogenesis. Interestingly, the SMAX1 protein is slowly destabilized at warm temperatures, preventing hypocotyl overgrowth. Our findings indicate that the thermodynamic control of SMAX1 abundance serves as a molecular gatekeeper for phyB function in thermosensitizing PIF4-mediated hypocotyl morphogenesis. - SMAX1 Integrates Karrikin and Light Signals into GA-Mediated Hypocotyl Growth during Seedling Establishment
Jae Young Kim, Young-Joon Park, June-Hee Lee, Chung-Mo Park
Plant and Cell Physiology, 2022
Morphogenic adaptation of young seedlings to light environments is a critical developmental process that ensures plant survival and propagation, as they emerge from the soil. Photomorphogenic responses are facilitated by a network of light and growth hormonal signals, such as auxin and gibberellic acid (GA). Karrikins (KARs), a group of butenolide compounds produced from burning plant materials in wildfires, are known to stimulate seed germination in fire-prone plant species. Notably, recent studies support that they also regulate seedling growth, while underlying molecular mechanisms have been unexplored yet. Here, we demonstrate that SUPPRESSOR OF MAX2 1 (SMAX1), a negative regulator of KAR signaling, integrates light and KAR signals into GA–DELLA pathways that regulate hypocotyl growth during seedling establishment. We found that SMAX1 facilitates degradation of DELLA proteins in the hypocotyls. Interestingly, light induces the accumulation of SMAX1 proteins, and SMAX1-mediated degradation of DELLA is elevated in seedling establishment during the dark-to-light transition. Our observations indicate that SMAX1-mediated integration of light and KAR signals into GA pathways elaborately modulates seedling establishment. - Phytochrome B Conveys Low Ambient Temperature Cues to the Ethylene-Mediated Leaf Senescence in Arabidopsis
June-Hee Lee, Young-Joon Park, Jae Young Kim, Chung-Mo Park
Plant and Cell Physiology, 2022
Leaf senescence is an active developmental process that is tightly regulated through extensive transcriptional and metabolic reprogramming events, which underlie controlled degradation and relocation of nutrients from aged or metabolically inactive leaves to young organs. The onset of leaf senescence is coordinately modulated by intrinsic aging programs and environmental conditions, such as prolonged darkness and temperature extremes. Seedlings growing under light deprivation, as often experienced in severe shading or night darkening, exhibit an accelerated senescing process, which is mediated by a complex signaling network that includes sugar starvation responses and light signaling events via the phytochrome B (phyB)-PHYTOCHROME-INTERACTING FACTOR (PIF) signaling routes. Notably, recent studies indicate that nonstressful ambient temperatures profoundly influence the onset and progression of leaf senescence in darkness, presumably mediated by the phyB-PIF4 signaling pathways. However, it is not fully understood how temperature signals regulate leaf senescence at the molecular level. Here, we demonstrated that low ambient temperatures repress the nuclear export of phyB and the nuclear phyB suppresses the transcriptional activation activity of ethylene signaling mediator ETHYLENE INSENSITIVE3 (EIN3), thus delaying leaf senescence. Accordingly, leaf senescence was insensitive to low ambient temperatures in transgenic plants overexpressing a constitutively nuclear phyB form, as observed in ein3 eil1 mutants. In contrast, leaf senescence was significantly promoted in phyB-deficient mutants under identical temperature conditions. Our data indicate that phyB coordinately integrates light and temperature cues into the EIN3-mediated ethylene signaling pathway that regulates leaf senescence under light deprivation, which would enhance plant fitness under fluctuating natural environments. - External and Internal Reshaping of Plant Thermomorphogenesis
Young-Joon Park, Jae Young Kim, June-Hee Lee, Shin-Hee Han, Chung-Mo Park
Trends in Plant Science, 2021 - EIN3-Mediated Ethylene Signaling Attenuates Auxin Response during Hypocotyl Thermomorphogenesis
Jae Young Kim, Young-Joon Park, June-Hee Lee, Zee Hwan Kim, Chung-Mo Park
Plant and Cell Physiology, 2021
The gaseous phytohormone ethylene plays vital roles in diverse developmental and environmental adaptation processes, such as fruit ripening, seedling establishment, mechanical stress tolerance and submergence escape. It is also known that in the light, ethylene promotes hypocotyl growth by stimulating the expression of PHYTOCHROME INTERACTING FACTOR3 (PIF3) transcription factor, which triggers microtubule reorganization during hypocotyl cell elongation. In particular, ethylene has been implicated in plant responses to warm temperatures in recent years. However, it is currently unclear how ethylene signals are functionally associated with hypocotyl thermomorphogenesis at the molecular level. Here, we show that ETHYLENE-INSENSITIVE3 (EIN3)-mediated ethylene signals attenuate hypocotyl thermomorphogenesis by suppressing auxin response. At warm temperatures, when the activity of the PIF4 thermomorphogenesis promoter is prominently high, the ethylene-activated EIN3 transcription factor directly induces the transcription of ARABIDOPSIS PP2C CLADE D7 (APD7) gene encoding a protein phosphatase that inactivates the plasma membrane (PM) H+-ATPase proton pumps. In conjunction with the promotive role of the PM H+-ATPases in hypocotyl cell elongation, our observations strongly support that the EIN3-directed induction of APD7 gene is linked with the suppression of auxin-induced cell expansion, leading to the reduction in thermomorphogenic hypocotyl growth. Our data demonstrate that APD7 acts as a molecular hub that integrates ethylene and auxin signals into hypocotyl thermomorphogenesis. We propose that the ethylene–auxin signaling crosstalks via the EIN3-APD7 module facilitate the fine-tuning of hypocotyl thermomorphogenesis under natural environments, which often fluctuate in a complex manner. - Publisher Correction: HOS1 activates DNA repair systems to enhance plant thermotolerance (Nature Plants, (2020), 6, 12, (1439-1446), 10.1038/s41477-020-00809-6)
Shin-Hee Han, Young-Joon Park, Chung-Mo Park
Nature Plants, 2021 - HOS1 activates DNA repair systems to enhance plant thermotolerance
Shin-Hee Han, Young-Joon Park, Chung-Mo Park
Nature Plants, 2020 - Auxin mediates the touch-induced mechanical stimulation of adventitious root formation under windy conditions in Brachypodium distachyon
Bo Eun Nam, Young-Joon Park, Kyung-Eun Gil, Ju-Heon Kim, Jae Geun Kim, et al.
BMC Plant Biology, 2020 - Synchronization of photoperiod and temperature signals during plant thermomorphogenesis
Young-Joon Park, June-Hee Lee, Jae Young Kim, Chung-Mo Park
Plant Signaling and Behavior, 2020 - GIGANTEA Shapes the Photoperiodic Rhythms of Thermomorphogenic Growth in Arabidopsis
Young-Joon Park, Jae Young Kim, June-Hee Lee, Byoung-Doo Lee, Nam-Chon Paek, et al.
Molecular Plant, 2020 - Plant Thermomorphogenic Adaptation to Global Warming
June-Hee Lee, Jae Young Kim, Jeong-Il Kim, Young-Joon Park, Chung-Mo Park
Journal of Plant Biology, 2020 - Physicochemical modeling of the phytochrome-mediated photothermal sensing
Young-Joon Park, Chung-Mo Park
Scientific Reports, 2019 - Developmental polarity shapes thermo-induced nastic movements in plants
Jae Young Kim, Young-Joon Park, June-Hee Lee, Chung-Mo Park
Plant Signaling and Behavior, 2019 - Developmental programming of thermonastic leaf movement
Young-Joon Park, Hyo-Jun Lee, Kyung-Eun Gil, Jae Young Kim, June-Hee Lee, et al.
Plant Physiology, 2019 - Alternative RNA splicing expands the developmental plasticity of flowering transition
Young-Joon Park, June-Hee Lee, Jae Young Kim, Chung-Mo Park
Frontiers in Plant Science, 2019 - Light priming of thermotolerance development in plants
Shin-Hee Han, Young-Joon Park, Chung-Mo Park
Plant Signaling and Behavior, 2019 - Light Primes the Thermally Induced Detoxification of Reactive Oxygen Species during Development of Thermotolerance in Arabidopsis
Shin-Hee Han, Young-Joon Park, Chung-Mo Park
Plant and Cell Physiology, 2019 - External coincidence model for hypocotyl thermomorphogenesis
Young-Joon Park, Chung-Mo Park
Plant Signaling and Behavior, 2018 - Multiple Routes of Light Signaling during Root Photomorphogenesis
Hyo-Jun Lee, Young-Joon Park, Jun-Ho Ha, Ian T. Baldwin, Chung-Mo Park
Trends in Plant Science, 2017 - COP1 conveys warm temperature information to hypocotyl thermomorphogenesis
Young‐Joon Park, Hyo‐Jun Lee, Jun‐Ho Ha, Jae Young Kim, Chung‐Mo Park
New Phytologist, 2017 - Alternative splicing provides a proactive mechanism for the diurnal CONSTANS dynamics in Arabidopsis photoperiodic flowering
Kyung-Eun Gil, Mi-Jeong Park, Hyo-Jun Lee, Young-Joon Park, Shin-Hee Han, et al.
Plant Journal, 2017
RECENT SCHOLAR PUBLICATIONS
- Evolutionary conservation of receptor compensation for stem cell homeostasis in Solanaceae plants
MG Seo, Y Lim, A Hendelman, G Robitaille, HK Beak, WJ Hong, SJ Park, ...
Horticulture Research, uhae126 , 2024
2024
Citations: 4 - Environmentally adaptive reshaping of plant photomorphogenesis by karrikin and strigolactone signaling
YJ Park, BE Nam, CM Park
Journal of Integrative Plant Biology , 2024
2024
Citations: 10 - Tomato arabinosyltransferase prevents precocious senescence
HY Jeong, Y Lim, MG Seo, SJ Park, C Lee, YJ Park, CT Kwon
Horticultural Plant Journal , 2024
2024
Citations: 2 - A New Epigenetic Crosstalk: Chemical Modification Information Flow
H Lee, YJ Park, PJ Seo
Advanced Genetics 4 (3), 2200033 , 2023
2023
Citations: 2 - How the sunflower gets its rings
YJ Park, PJ Seo
Elife 12, e86284 , 2023
2023
Citations: 2 - SMAX1 Integrates Karrikin and Light Signals into GA-Mediated Hypocotyl Growth during Seedling Establishment
JY Kim, YJ Park, JH Lee, CM Park
Plant and Cell Physiology 63 (7), 932-943 , 2022
2022
Citations: 19 - SMAX1 potentiates phytochrome B-mediated hypocotyl thermomorphogenesis
YJ Park, JY Kim, CM Park
The Plant Cell 34 (7), 2671-2687 , 2022
2022
Citations: 32 - Phytochrome B Conveys Low Ambient Temperature Cues to the Ethylene-Mediated Leaf Senescence in Arabidopsis
JH Lee, YJ Park, JY Kim, CM Park
Plant And Cell Physiology 63 (3), 326-339 , 2022
2022
Citations: 15 - External and internal reshaping of plant thermomorphogenesis
YJ Park, JY Kim, JH Lee, SH Han, CM Park
Trends in Plant Science 26 (8), 810-821 , 2021
2021
Citations: 22 - EIN3-mediated ethylene signaling attenuates auxin response during hypocotyl thermomorphogenesis
JY Kim, YJ Park, JH Lee, ZH Kim, CM Park
Plant and Cell Physiology 62 (4), 708-720 , 2021
2021
Citations: 25 - HOS1 activates DNA repair systems to enhance plant thermotolerance
SH Han, YJ Park, CM Park
Nature plants 6 (12), 1439-1446 , 2020
2020
Citations: 54 - Auxin mediates the touch-induced mechanical stimulation of adventitious root formation under windy conditions in Brachypodium distachyon
BE Nam, YJ Park, KE Gil, JH Kim, JG Kim, CM Park
BMC Plant Biology 20, 1-15 , 2020
2020
Citations: 25 - Synchronization of photoperiod and temperature signals during plant thermomorphogenesis
YJ Park, JH Lee, JY Kim, CM Park
Plant Signaling & Behavior 15 (4), 1739842 , 2020
2020
Citations: 6 - GIGANTEA shapes the photoperiodic rhythms of thermomorphogenic growth in Arabidopsis
YJ Park, JY Kim, JH Lee, BD Lee, NC Paek, CM Park
Molecular Plant 13 (3), 459-470 , 2020
2020
Citations: 73 - Plant thermomorphogenic adaptation to global warming
JH Lee, JY Kim, JI Kim, YJ Park, CM Park
Journal of Plant Biology 63, 1-9 , 2020
2020
Citations: 34 - Developmental polarity shapes thermo-induced nastic movements in plants
JY Kim, YJ Park, JH Lee, CM Park
Plant signaling & behavior 14 (8), 1617609 , 2019
2019
Citations: 15 - Physicochemical modeling of the phytochrome-mediated photothermal sensing
YJ Park, CM Park
Scientific Reports 9 (1), 10485 , 2019
2019
Citations: 10 - Developmental programming of thermonastic leaf movement
YJ Park, HJ Lee, KE Gil, JY Kim, JH Lee, H Lee, HT Cho, LD Vu, ...
Plant physiology 180 (2), 1185-1197 , 2019
2019
Citations: 106 - Alternative RNA splicing expands the developmental plasticity of flowering transition
YJ Park, JH Lee, JY Kim, CM Park
Frontiers in plant science 10, 606 , 2019
2019
Citations: 28 - Light priming of thermotolerance development in plants
SH Han, YJ Park, CM Park
Plant signaling & behavior 14 (1), 1554469 , 2019
2019
Citations: 23
MOST CITED SCHOLAR PUBLICATIONS
- COP 1 conveys warm temperature information to hypocotyl thermomorphogenesis
YJ Park, HJ Lee, JH Ha, JY Kim, CM Park
New Phytologist 215 (1), 269-280 , 2017
2017
Citations: 181 - Systemic immunity requires SnRK2. 8-mediated nuclear import of NPR1 in Arabidopsis
HJ Lee, YJ Park, PJ Seo, JH Kim, HJ Sim, SG Kim, CM Park
The Plant Cell 27 (12), 3425-3438 , 2015
2015
Citations: 167 - Developmental programming of thermonastic leaf movement
YJ Park, HJ Lee, KE Gil, JY Kim, JH Lee, H Lee, HT Cho, LD Vu, ...
Plant physiology 180 (2), 1185-1197 , 2019
2019
Citations: 106 - Multiple routes of light signaling during root photomorphogenesis
HJ Lee, YJ Park, JH Ha, IT Baldwin, CM Park
Trends in plant science 22 (9), 803-812 , 2017
2017
Citations: 101 - GIGANTEA shapes the photoperiodic rhythms of thermomorphogenic growth in Arabidopsis
YJ Park, JY Kim, JH Lee, BD Lee, NC Paek, CM Park
Molecular Plant 13 (3), 459-470 , 2020
2020
Citations: 73 - Alternative splicing provides a proactive mechanism for the diurnal CONSTANS dynamics in Arabidopsis photoperiodic flowering
KE Gil, MJ Park, HJ Lee, YJ Park, SH Han, YJ Kwon, PJ Seo, JH Jung, ...
The Plant Journal 89 (1), 128-140 , 2017
2017
Citations: 72 - HOS1 activates DNA repair systems to enhance plant thermotolerance
SH Han, YJ Park, CM Park
Nature plants 6 (12), 1439-1446 , 2020
2020
Citations: 54 - Light Primes the Thermally Induced Detoxification of Reactive Oxygen Species During Development of Thermotolerance in Arabidopsis
SH Han, YJ Park, CM Park
Plant and Cell Physiology 60 (1), 230-241 , 2019
2019
Citations: 42 - Plant thermomorphogenic adaptation to global warming
JH Lee, JY Kim, JI Kim, YJ Park, CM Park
Journal of Plant Biology 63, 1-9 , 2020
2020
Citations: 34 - SMAX1 potentiates phytochrome B-mediated hypocotyl thermomorphogenesis
YJ Park, JY Kim, CM Park
The Plant Cell 34 (7), 2671-2687 , 2022
2022
Citations: 32 - Alternative RNA splicing expands the developmental plasticity of flowering transition
YJ Park, JH Lee, JY Kim, CM Park
Frontiers in plant science 10, 606 , 2019
2019
Citations: 28 - EIN3-mediated ethylene signaling attenuates auxin response during hypocotyl thermomorphogenesis
JY Kim, YJ Park, JH Lee, ZH Kim, CM Park
Plant and Cell Physiology 62 (4), 708-720 , 2021
2021
Citations: 25 - Auxin mediates the touch-induced mechanical stimulation of adventitious root formation under windy conditions in Brachypodium distachyon
BE Nam, YJ Park, KE Gil, JH Kim, JG Kim, CM Park
BMC Plant Biology 20, 1-15 , 2020
2020
Citations: 25 - Light priming of thermotolerance development in plants
SH Han, YJ Park, CM Park
Plant signaling & behavior 14 (1), 1554469 , 2019
2019
Citations: 23 - External and internal reshaping of plant thermomorphogenesis
YJ Park, JY Kim, JH Lee, SH Han, CM Park
Trends in Plant Science 26 (8), 810-821 , 2021
2021
Citations: 22 - SMAX1 Integrates Karrikin and Light Signals into GA-Mediated Hypocotyl Growth during Seedling Establishment
JY Kim, YJ Park, JH Lee, CM Park
Plant and Cell Physiology 63 (7), 932-943 , 2022
2022
Citations: 19 - Phytochrome B Conveys Low Ambient Temperature Cues to the Ethylene-Mediated Leaf Senescence in Arabidopsis
JH Lee, YJ Park, JY Kim, CM Park
Plant And Cell Physiology 63 (3), 326-339 , 2022
2022
Citations: 15 - Developmental polarity shapes thermo-induced nastic movements in plants
JY Kim, YJ Park, JH Lee, CM Park
Plant signaling & behavior 14 (8), 1617609 , 2019
2019
Citations: 15 - Environmentally adaptive reshaping of plant photomorphogenesis by karrikin and strigolactone signaling
YJ Park, BE Nam, CM Park
Journal of Integrative Plant Biology , 2024
2024
Citations: 10 - Physicochemical modeling of the phytochrome-mediated photothermal sensing
YJ Park, CM Park
Scientific Reports 9 (1), 10485 , 2019
2019
Citations: 10