Insight into Details of the Photosynthetic Light Reactions and Selected Metabolic Changes in Tomato Seedlings Growing under Various Light Spectra
The objective of our study was to characterise the growth of tomato seedlings under various light spectra, but special attention has been paid to gaining a deeper insight into the details of photosynthetic light reactions. The following light combinations (generated by LEDs, constant light intensity...
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2021
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oai:doaj.org-article:e9078aa6c8cd4fdeb480d18c1a18f0372021-11-11T16:58:43ZInsight into Details of the Photosynthetic Light Reactions and Selected Metabolic Changes in Tomato Seedlings Growing under Various Light Spectra10.3390/ijms2221115171422-00671661-6596https://doaj.org/article/e9078aa6c8cd4fdeb480d18c1a18f0372021-10-01T00:00:00Zhttps://www.mdpi.com/1422-0067/22/21/11517https://doaj.org/toc/1661-6596https://doaj.org/toc/1422-0067The objective of our study was to characterise the growth of tomato seedlings under various light spectra, but special attention has been paid to gaining a deeper insight into the details of photosynthetic light reactions. The following light combinations (generated by LEDs, constant light intensity at 300 μmol m<sup>−2</sup> s<sup>−1</sup>) were used: blue/red light; blue/red light + far red; blue/red light + UV; white light that was supplemented with green, and white light that was supplemented with blue. Moreover, two combinations of white light for which the light intensity was changed by imitating the sunrise, sunset, and moon were also tested. The reference point was also light generated by high pressure sodium lamps (HPS). Plant growth/morphological parameters under various light conditions were only partly correlated with the photosynthetic efficiency of PSI and PSII. Illumination with blue/red as the main components had a negative effect on the functioning of PSII compared to the white light and HPS-generated light. On the other hand, the functioning of PSI was especially negatively affected under the blue/red light that was supplemented with FR. The FT-Raman studies showed that the general metabolic profile of the leaves (especially proteins and β-carotene) was similar in the plants that were grown under the HPS and under the LED-generated white light for which the light intensity changed during a day. The effect of various light conditions on the leaf hormonal balance (auxins, brassinosteroids) is also discussed.Monika Kula-MaximenkoEwa NiewiadomskaAnna MaksymowiczAgnieszka OstrowskaJana OklestkovaAleš PěnčíkAnna JaneczkoMDPI AGarticleauxinsbrassinosteroidsplant growthphotosynthesislight spectral composition<i>Solanum lycopersicum</i> L.Biology (General)QH301-705.5ChemistryQD1-999ENInternational Journal of Molecular Sciences, Vol 22, Iss 11517, p 11517 (2021) |
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auxins brassinosteroids plant growth photosynthesis light spectral composition <i>Solanum lycopersicum</i> L. Biology (General) QH301-705.5 Chemistry QD1-999 |
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auxins brassinosteroids plant growth photosynthesis light spectral composition <i>Solanum lycopersicum</i> L. Biology (General) QH301-705.5 Chemistry QD1-999 Monika Kula-Maximenko Ewa Niewiadomska Anna Maksymowicz Agnieszka Ostrowska Jana Oklestkova Aleš Pěnčík Anna Janeczko Insight into Details of the Photosynthetic Light Reactions and Selected Metabolic Changes in Tomato Seedlings Growing under Various Light Spectra |
| description |
The objective of our study was to characterise the growth of tomato seedlings under various light spectra, but special attention has been paid to gaining a deeper insight into the details of photosynthetic light reactions. The following light combinations (generated by LEDs, constant light intensity at 300 μmol m<sup>−2</sup> s<sup>−1</sup>) were used: blue/red light; blue/red light + far red; blue/red light + UV; white light that was supplemented with green, and white light that was supplemented with blue. Moreover, two combinations of white light for which the light intensity was changed by imitating the sunrise, sunset, and moon were also tested. The reference point was also light generated by high pressure sodium lamps (HPS). Plant growth/morphological parameters under various light conditions were only partly correlated with the photosynthetic efficiency of PSI and PSII. Illumination with blue/red as the main components had a negative effect on the functioning of PSII compared to the white light and HPS-generated light. On the other hand, the functioning of PSI was especially negatively affected under the blue/red light that was supplemented with FR. The FT-Raman studies showed that the general metabolic profile of the leaves (especially proteins and β-carotene) was similar in the plants that were grown under the HPS and under the LED-generated white light for which the light intensity changed during a day. The effect of various light conditions on the leaf hormonal balance (auxins, brassinosteroids) is also discussed. |
| format |
article |
| author |
Monika Kula-Maximenko Ewa Niewiadomska Anna Maksymowicz Agnieszka Ostrowska Jana Oklestkova Aleš Pěnčík Anna Janeczko |
| author_facet |
Monika Kula-Maximenko Ewa Niewiadomska Anna Maksymowicz Agnieszka Ostrowska Jana Oklestkova Aleš Pěnčík Anna Janeczko |
| author_sort |
Monika Kula-Maximenko |
| title |
Insight into Details of the Photosynthetic Light Reactions and Selected Metabolic Changes in Tomato Seedlings Growing under Various Light Spectra |
| title_short |
Insight into Details of the Photosynthetic Light Reactions and Selected Metabolic Changes in Tomato Seedlings Growing under Various Light Spectra |
| title_full |
Insight into Details of the Photosynthetic Light Reactions and Selected Metabolic Changes in Tomato Seedlings Growing under Various Light Spectra |
| title_fullStr |
Insight into Details of the Photosynthetic Light Reactions and Selected Metabolic Changes in Tomato Seedlings Growing under Various Light Spectra |
| title_full_unstemmed |
Insight into Details of the Photosynthetic Light Reactions and Selected Metabolic Changes in Tomato Seedlings Growing under Various Light Spectra |
| title_sort |
insight into details of the photosynthetic light reactions and selected metabolic changes in tomato seedlings growing under various light spectra |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/e9078aa6c8cd4fdeb480d18c1a18f037 |
| work_keys_str_mv |
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