Supplemental blue and red light promote lycopene synthesis in tomato fruits
Lycopene, one of the strongest natural antioxidants known and the main carotene in ripe tomato, is very important for human health. Light is well known to be one of the most important environmental stimuli influencing lycopene biosynthesis; specifically, red light induces higher lycopene content in...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-03-01
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| Series: | Journal of Integrative Agriculture |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311918620623 |
| _version_ | 1819011906143256576 |
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| author | Bao-xing XIE Jing-jing WEI Yi-ting ZHANG Shi-wei SONG Wei SU Guang-wen SUN Yan-wei HAO Hou-cheng LIU |
| author_facet | Bao-xing XIE Jing-jing WEI Yi-ting ZHANG Shi-wei SONG Wei SU Guang-wen SUN Yan-wei HAO Hou-cheng LIU |
| author_sort | Bao-xing XIE |
| collection | DOAJ |
| description | Lycopene, one of the strongest natural antioxidants known and the main carotene in ripe tomato, is very important for human health. Light is well known to be one of the most important environmental stimuli influencing lycopene biosynthesis; specifically, red light induces higher lycopene content in tomato. However, whether blue light promotes lycopene synthesis remains elusive and exactly how light stimulation promotes lycopene synthesis remains unclear. We applied supplemental blue and red lighting on tomato plants at anthesis to monitor the effect of supplemental blue and red lighting on lycopene synthesis. Our results showed that supplemental blue/red lighting induced higher lycopene content in tomato fruits; furthermore, we found that the expression of key genes in the lycopene synthesis pathway was induced by supplemented blue/red light. The expression of light signaling components, such as red-light receptor phytochromes (PHYs), blue-light receptor cryptochromes (CRYs) and light interaction factors, phytochrome-interacting factors (PIFs) and ELONGATED HYPOCOTYL 5 (HY5) were up- or down-regulated by blue/red lighting. Thus, blue and red light increased lycopene content in tomatoes by inducing light receptors that modulate HY5 and PIFs activation to mediate phytoene synthase 1 (PSY1) gene expression. These results provide a sound theoretical basis for further elucidation of the light regulating mechanism of lycopene synthesis in tomatoes, and for instituting a new generation of technological innovations for the enhancement of lycopene accumulation in crop production. |
| first_indexed | 2024-12-21T01:35:36Z |
| format | Article |
| id | doaj.art-7da1925b156841f8891f593374a55ce1 |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-12-21T01:35:36Z |
| publishDate | 2019-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-7da1925b156841f8891f593374a55ce12022-12-21T19:20:16ZengElsevierJournal of Integrative Agriculture2095-31192019-03-01183590598Supplemental blue and red light promote lycopene synthesis in tomato fruitsBao-xing XIE0Jing-jing WEI1Yi-ting ZHANG2Shi-wei SONG3Wei SU4Guang-wen SUN5Yan-wei HAO6Hou-cheng LIU7College of Horticulture, South China Agricultural University, Guangzhou 510642, P.R. ChinaCollege of Horticulture, South China Agricultural University, Guangzhou 510642, P.R. ChinaCollege of Horticulture, South China Agricultural University, Guangzhou 510642, P.R. ChinaCollege of Horticulture, South China Agricultural University, Guangzhou 510642, P.R. ChinaCollege of Horticulture, South China Agricultural University, Guangzhou 510642, P.R. ChinaCollege of Horticulture, South China Agricultural University, Guangzhou 510642, P.R. ChinaCorrespondence HAO Yan-wei; College of Horticulture, South China Agricultural University, Guangzhou 510642, P.R. ChinaCorrespondence LIU Hou-cheng; College of Horticulture, South China Agricultural University, Guangzhou 510642, P.R. ChinaLycopene, one of the strongest natural antioxidants known and the main carotene in ripe tomato, is very important for human health. Light is well known to be one of the most important environmental stimuli influencing lycopene biosynthesis; specifically, red light induces higher lycopene content in tomato. However, whether blue light promotes lycopene synthesis remains elusive and exactly how light stimulation promotes lycopene synthesis remains unclear. We applied supplemental blue and red lighting on tomato plants at anthesis to monitor the effect of supplemental blue and red lighting on lycopene synthesis. Our results showed that supplemental blue/red lighting induced higher lycopene content in tomato fruits; furthermore, we found that the expression of key genes in the lycopene synthesis pathway was induced by supplemented blue/red light. The expression of light signaling components, such as red-light receptor phytochromes (PHYs), blue-light receptor cryptochromes (CRYs) and light interaction factors, phytochrome-interacting factors (PIFs) and ELONGATED HYPOCOTYL 5 (HY5) were up- or down-regulated by blue/red lighting. Thus, blue and red light increased lycopene content in tomatoes by inducing light receptors that modulate HY5 and PIFs activation to mediate phytoene synthase 1 (PSY1) gene expression. These results provide a sound theoretical basis for further elucidation of the light regulating mechanism of lycopene synthesis in tomatoes, and for instituting a new generation of technological innovations for the enhancement of lycopene accumulation in crop production.http://www.sciencedirect.com/science/article/pii/S2095311918620623blue lightred lightlycopenephytochromescryptochromes |
| spellingShingle | Bao-xing XIE Jing-jing WEI Yi-ting ZHANG Shi-wei SONG Wei SU Guang-wen SUN Yan-wei HAO Hou-cheng LIU Supplemental blue and red light promote lycopene synthesis in tomato fruits Journal of Integrative Agriculture blue light red light lycopene phytochromes cryptochromes |
| title | Supplemental blue and red light promote lycopene synthesis in tomato fruits |
| title_full | Supplemental blue and red light promote lycopene synthesis in tomato fruits |
| title_fullStr | Supplemental blue and red light promote lycopene synthesis in tomato fruits |
| title_full_unstemmed | Supplemental blue and red light promote lycopene synthesis in tomato fruits |
| title_short | Supplemental blue and red light promote lycopene synthesis in tomato fruits |
| title_sort | supplemental blue and red light promote lycopene synthesis in tomato fruits |
| topic | blue light red light lycopene phytochromes cryptochromes |
| url | http://www.sciencedirect.com/science/article/pii/S2095311918620623 |
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