Light Quality and Intensity Modulate Cold Acclimation in Arabidopsis
Plant survival in temperate zones requires efficient cold acclimation, which is strongly affected by light and temperature signal crosstalk, which converge in modulation of hormonal responses. Cold under low light conditions affected Arabidopsis responses predominantly in apices, possibly because en...
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MDPI AG
2021-03-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/22/5/2736 |
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| author | Sylva Prerostova Petre I. Dobrev Vojtech Knirsch Jana Jarosova Alena Gaudinova Barbara Zupkova Ilja T. Prášil Tibor Janda Břetislav Brzobohatý Jan Skalák Radomira Vankova |
| author_facet | Sylva Prerostova Petre I. Dobrev Vojtech Knirsch Jana Jarosova Alena Gaudinova Barbara Zupkova Ilja T. Prášil Tibor Janda Břetislav Brzobohatý Jan Skalák Radomira Vankova |
| author_sort | Sylva Prerostova |
| collection | DOAJ |
| description | Plant survival in temperate zones requires efficient cold acclimation, which is strongly affected by light and temperature signal crosstalk, which converge in modulation of hormonal responses. Cold under low light conditions affected Arabidopsis responses predominantly in apices, possibly because energy supplies were too limited for requirements of these meristematic tissues, despite a relatively high steady-state quantum yield. Comparing cold responses at optimal light intensity and low light, we found activation of similar defence mechanisms—apart from <i>CBF1</i>–<i>3</i> and <i>CRF3</i>–<i>4</i> pathways, also transient stimulation of cytokinin type-A response regulators, accompanied by fast transient increase of <i>trans</i>-zeatin in roots. Upregulated expression of components of strigolactone (and karrikin) signalling pathway indicated involvement of these phytohormones in cold responses. Impaired response of <i>phyA</i>, <i>phyB</i>, <i>cry1</i> and <i>cry2</i> mutants reflected participation of these photoreceptors in acquiring freezing tolerance (especially cryptochrome CRY1 at optimal light intensity and phytochrome PHYA at low light). Efficient cold acclimation at optimal light was associated with upregulation of <i>trans</i>-zeatin in leaves and roots, while at low light, cytokinin (except <i>cis</i>-zeatin) content remained diminished. Cold stresses induced elevation of jasmonic acid and salicylic acid (in roots). Low light at optimal conditions resulted in strong suppression of cytokinins, jasmonic and salicylic acid. |
| first_indexed | 2024-03-10T13:25:50Z |
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| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-10T13:25:50Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-233395fba8ff45b19a869ccfa61885122023-11-21T09:38:31ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-03-01225273610.3390/ijms22052736Light Quality and Intensity Modulate Cold Acclimation in ArabidopsisSylva Prerostova0Petre I. Dobrev1Vojtech Knirsch2Jana Jarosova3Alena Gaudinova4Barbara Zupkova5Ilja T. Prášil6Tibor Janda7Břetislav Brzobohatý8Jan Skalák9Radomira Vankova10Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojova 263, 16502 Prague, Czech RepublicLaboratory of Hormonal Regulations in Plants, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojova 263, 16502 Prague, Czech RepublicLaboratory of Hormonal Regulations in Plants, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojova 263, 16502 Prague, Czech RepublicLaboratory of Hormonal Regulations in Plants, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojova 263, 16502 Prague, Czech RepublicLaboratory of Hormonal Regulations in Plants, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojova 263, 16502 Prague, Czech RepublicLaboratory of Hormonal Regulations in Plants, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojova 263, 16502 Prague, Czech RepublicDivision of Genetics and Crop Breeding, Crop Research Institute, Drnovska 507, 16100 Prague, Czech RepublicDepartment of Plant Physiology, Agricultural Institute, Centre for Agricultural Research, ELKH, Brunszvik u. 2, 2462 Martonvásár, HungaryDepartment of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech RepublicDepartment of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech RepublicLaboratory of Hormonal Regulations in Plants, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojova 263, 16502 Prague, Czech RepublicPlant survival in temperate zones requires efficient cold acclimation, which is strongly affected by light and temperature signal crosstalk, which converge in modulation of hormonal responses. Cold under low light conditions affected Arabidopsis responses predominantly in apices, possibly because energy supplies were too limited for requirements of these meristematic tissues, despite a relatively high steady-state quantum yield. Comparing cold responses at optimal light intensity and low light, we found activation of similar defence mechanisms—apart from <i>CBF1</i>–<i>3</i> and <i>CRF3</i>–<i>4</i> pathways, also transient stimulation of cytokinin type-A response regulators, accompanied by fast transient increase of <i>trans</i>-zeatin in roots. Upregulated expression of components of strigolactone (and karrikin) signalling pathway indicated involvement of these phytohormones in cold responses. Impaired response of <i>phyA</i>, <i>phyB</i>, <i>cry1</i> and <i>cry2</i> mutants reflected participation of these photoreceptors in acquiring freezing tolerance (especially cryptochrome CRY1 at optimal light intensity and phytochrome PHYA at low light). Efficient cold acclimation at optimal light was associated with upregulation of <i>trans</i>-zeatin in leaves and roots, while at low light, cytokinin (except <i>cis</i>-zeatin) content remained diminished. Cold stresses induced elevation of jasmonic acid and salicylic acid (in roots). Low light at optimal conditions resulted in strong suppression of cytokinins, jasmonic and salicylic acid.https://www.mdpi.com/1422-0067/22/5/2736auxincombined stresscryptochromecytokiningene expressiongibberellin |
| spellingShingle | Sylva Prerostova Petre I. Dobrev Vojtech Knirsch Jana Jarosova Alena Gaudinova Barbara Zupkova Ilja T. Prášil Tibor Janda Břetislav Brzobohatý Jan Skalák Radomira Vankova Light Quality and Intensity Modulate Cold Acclimation in Arabidopsis International Journal of Molecular Sciences auxin combined stress cryptochrome cytokinin gene expression gibberellin |
| title | Light Quality and Intensity Modulate Cold Acclimation in Arabidopsis |
| title_full | Light Quality and Intensity Modulate Cold Acclimation in Arabidopsis |
| title_fullStr | Light Quality and Intensity Modulate Cold Acclimation in Arabidopsis |
| title_full_unstemmed | Light Quality and Intensity Modulate Cold Acclimation in Arabidopsis |
| title_short | Light Quality and Intensity Modulate Cold Acclimation in Arabidopsis |
| title_sort | light quality and intensity modulate cold acclimation in arabidopsis |
| topic | auxin combined stress cryptochrome cytokinin gene expression gibberellin |
| url | https://www.mdpi.com/1422-0067/22/5/2736 |
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