Phytohormone ethylene-responsive Arabidopsis organ growth under light is in the fine regulation of Photosystem II deficiency-inducible AKIN10 expression
Abstract For photoautotrophic plants, light-dependent photosynthesis plays an important role in organismal growth and development. Under light, Arabidopsis hypocotyl growth is promoted by the phytohormone ethylene. Despite well-characterized ethylene signaling pathways, the functions of light in the...
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2017
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oai:doaj.org-article:af1f370a1a434db5b0b4b352ed9f03ba2021-12-02T15:05:41ZPhytohormone ethylene-responsive Arabidopsis organ growth under light is in the fine regulation of Photosystem II deficiency-inducible AKIN10 expression10.1038/s41598-017-02897-52045-2322https://doaj.org/article/af1f370a1a434db5b0b4b352ed9f03ba2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02897-5https://doaj.org/toc/2045-2322Abstract For photoautotrophic plants, light-dependent photosynthesis plays an important role in organismal growth and development. Under light, Arabidopsis hypocotyl growth is promoted by the phytohormone ethylene. Despite well-characterized ethylene signaling pathways, the functions of light in the hormone-inducible growth response still remain elusive. Our cell-based functional and plant-system-based genetic analyses with biophysical and chemical tools showed that a chemical blockade of photosystem (PS) II activity affects ethylene-induced hypocotyl response under light. Interestingly, ethylene responsiveness modulates PSII activity in retrospect. The lack of ethylene responsiveness-inducible PSII inefficiency correlates with the induction of AKIN10 expression. Consistently, overexpression of AKIN10 in transgenic plants suppresses ethylene-inducible hypocotyl growth promotion under illumination as in other ethylene-insensitive mutants. Our findings provide information on how ethylene responsiveness-dependent photosynthetic activity controls evolutionarily conserved energy sensor AKIN10 that fine-tunes EIN3-mediated ethylene signaling responses in organ growth under light.Geun-Don KimYoung-Hee ChoSang-Dong YooNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017) |
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Medicine R Science Q Geun-Don Kim Young-Hee Cho Sang-Dong Yoo Phytohormone ethylene-responsive Arabidopsis organ growth under light is in the fine regulation of Photosystem II deficiency-inducible AKIN10 expression |
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Abstract For photoautotrophic plants, light-dependent photosynthesis plays an important role in organismal growth and development. Under light, Arabidopsis hypocotyl growth is promoted by the phytohormone ethylene. Despite well-characterized ethylene signaling pathways, the functions of light in the hormone-inducible growth response still remain elusive. Our cell-based functional and plant-system-based genetic analyses with biophysical and chemical tools showed that a chemical blockade of photosystem (PS) II activity affects ethylene-induced hypocotyl response under light. Interestingly, ethylene responsiveness modulates PSII activity in retrospect. The lack of ethylene responsiveness-inducible PSII inefficiency correlates with the induction of AKIN10 expression. Consistently, overexpression of AKIN10 in transgenic plants suppresses ethylene-inducible hypocotyl growth promotion under illumination as in other ethylene-insensitive mutants. Our findings provide information on how ethylene responsiveness-dependent photosynthetic activity controls evolutionarily conserved energy sensor AKIN10 that fine-tunes EIN3-mediated ethylene signaling responses in organ growth under light. |
format |
article |
author |
Geun-Don Kim Young-Hee Cho Sang-Dong Yoo |
author_facet |
Geun-Don Kim Young-Hee Cho Sang-Dong Yoo |
author_sort |
Geun-Don Kim |
title |
Phytohormone ethylene-responsive Arabidopsis organ growth under light is in the fine regulation of Photosystem II deficiency-inducible AKIN10 expression |
title_short |
Phytohormone ethylene-responsive Arabidopsis organ growth under light is in the fine regulation of Photosystem II deficiency-inducible AKIN10 expression |
title_full |
Phytohormone ethylene-responsive Arabidopsis organ growth under light is in the fine regulation of Photosystem II deficiency-inducible AKIN10 expression |
title_fullStr |
Phytohormone ethylene-responsive Arabidopsis organ growth under light is in the fine regulation of Photosystem II deficiency-inducible AKIN10 expression |
title_full_unstemmed |
Phytohormone ethylene-responsive Arabidopsis organ growth under light is in the fine regulation of Photosystem II deficiency-inducible AKIN10 expression |
title_sort |
phytohormone ethylene-responsive arabidopsis organ growth under light is in the fine regulation of photosystem ii deficiency-inducible akin10 expression |
publisher |
Nature Portfolio |
publishDate |
2017 |
url |
https://doaj.org/article/af1f370a1a434db5b0b4b352ed9f03ba |
work_keys_str_mv |
AT geundonkim phytohormoneethyleneresponsivearabidopsisorgangrowthunderlightisinthefineregulationofphotosystemiideficiencyinducibleakin10expression AT youngheecho phytohormoneethyleneresponsivearabidopsisorgangrowthunderlightisinthefineregulationofphotosystemiideficiencyinducibleakin10expression AT sangdongyoo phytohormoneethyleneresponsivearabidopsisorgangrowthunderlightisinthefineregulationofphotosystemiideficiencyinducibleakin10expression |
_version_ |
1718388724888240128 |