Physiological study on the flower color formation of five varieties of Lagerstroemia indica
ObjectiveThis study aims to explore the color changes and influencing factors of Lagerstroemia indica flowers with different flower colors during the blooming process. MethodThe color values, contents of total chlorophyll, carotenoids, anthocyanins, total flavonoids soluble sugar, and soluble protei...
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South China Agricultural University
2025-07-01
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| Series: | Huanan Nongye Daxue xuebao |
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| Online Access: | https://journal.scau.edu.cn/article/doi/10.7671/j.issn.1001-411X.202412015 |
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| author | Shuaijie LU Ruoyong YIN Xinru QIN Mengjia WU Ruchun XI Xiaomei DENG |
| author_facet | Shuaijie LU Ruoyong YIN Xinru QIN Mengjia WU Ruchun XI Xiaomei DENG |
| author_sort | Shuaijie LU |
| collection | DOAJ |
| description | ObjectiveThis study aims to explore the color changes and influencing factors of Lagerstroemia indica flowers with different flower colors during the blooming process. MethodThe color values, contents of total chlorophyll, carotenoids, anthocyanins, total flavonoids soluble sugar, and soluble protein, as well as pH were measured at four stages for five flower colors (red, white, light pink, pink and purple). The physiological factors influencing the flower color expression of L. indica were investigated. ResultThe L* (brightness) of L. indica flowers with different colors continuously decreased during the blooming process. The a* (red-green value) and c* (saturation value) first increased and then decreased. The b* (yellow-blue value) and h (hue) exhibited varying trends. The white flowers had the highest L* and h, with the maxima of 61.61 and 1.45, respectively, while the red flowers had the highest a*, b* and c*, with the maxima of 44.83, 7.39, and 45.44 respectively. At the full blooming stage, the anthocyanin content in red flowers was the highest at 1.55 mg·g−1, whereas it remained relatively low in white and light pink flowers with 0.04 and 0.05 mg·g−1, respectively. Pink flowers displayed the highest total flavonoid content, with an average of 4.17 mg·g−1 during the blooming process. The pH of L. indica flowers of all colors were relatively high at the bud and early blooming stages, but significantly decreased at the full and late blooming stages (P < 0.05). The color values of L. indica flowers were regulated by pigment contents. Specifically, the L* exhibited a highly significant negative correlation with total chlorophyll, carotenoids, and anthocyanin contents (P < 0.01). The a* and c* showed highly significant positive correlations with these three pigments (P < 0.01). The b* showed a highly significant negative correlation with total flavonoid content (P < 0.01) and a significant positive correlation with total chlorophyll and carotenoid contents (P < 0.05). ConclusionPigment content influences petal color, pH affects flower color by influencing anthocyanin stability, and soluble sugars indirectly affect color expression. This study provides scientific evidence for understanding the physiological factors that influence the color formation of L. indica flowers. |
| format | Article |
| id | doaj-art-df7466ba1f8b4fb480afccd0387cd45c |
| institution | Matheson Library |
| issn | 1001-411X |
| language | zho |
| publishDate | 2025-07-01 |
| publisher | South China Agricultural University |
| record_format | Article |
| series | Huanan Nongye Daxue xuebao |
| spelling | doaj-art-df7466ba1f8b4fb480afccd0387cd45c2025-07-30T01:49:52ZzhoSouth China Agricultural UniversityHuanan Nongye Daxue xuebao1001-411X2025-07-0146457758610.7671/j.issn.1001-411X.202412015202504lushuaijiePhysiological study on the flower color formation of five varieties of Lagerstroemia indicaShuaijie LU0Ruoyong YIN1Xinru QIN2Mengjia WU3Ruchun XI4Xiaomei DENG5College of Forestry and Landscape Architecture, South China Agricultural University/Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, ChinaCollege of Forestry and Landscape Architecture, South China Agricultural University/Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, ChinaCollege of Forestry and Landscape Architecture, South China Agricultural University/Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, ChinaCollege of Forestry and Landscape Architecture, South China Agricultural University/Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, ChinaCollege of Forestry and Landscape Architecture, South China Agricultural University/Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, ChinaCollege of Forestry and Landscape Architecture, South China Agricultural University/Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, Guangzhou 510642, ChinaObjectiveThis study aims to explore the color changes and influencing factors of Lagerstroemia indica flowers with different flower colors during the blooming process. MethodThe color values, contents of total chlorophyll, carotenoids, anthocyanins, total flavonoids soluble sugar, and soluble protein, as well as pH were measured at four stages for five flower colors (red, white, light pink, pink and purple). The physiological factors influencing the flower color expression of L. indica were investigated. ResultThe L* (brightness) of L. indica flowers with different colors continuously decreased during the blooming process. The a* (red-green value) and c* (saturation value) first increased and then decreased. The b* (yellow-blue value) and h (hue) exhibited varying trends. The white flowers had the highest L* and h, with the maxima of 61.61 and 1.45, respectively, while the red flowers had the highest a*, b* and c*, with the maxima of 44.83, 7.39, and 45.44 respectively. At the full blooming stage, the anthocyanin content in red flowers was the highest at 1.55 mg·g−1, whereas it remained relatively low in white and light pink flowers with 0.04 and 0.05 mg·g−1, respectively. Pink flowers displayed the highest total flavonoid content, with an average of 4.17 mg·g−1 during the blooming process. The pH of L. indica flowers of all colors were relatively high at the bud and early blooming stages, but significantly decreased at the full and late blooming stages (P < 0.05). The color values of L. indica flowers were regulated by pigment contents. Specifically, the L* exhibited a highly significant negative correlation with total chlorophyll, carotenoids, and anthocyanin contents (P < 0.01). The a* and c* showed highly significant positive correlations with these three pigments (P < 0.01). The b* showed a highly significant negative correlation with total flavonoid content (P < 0.01) and a significant positive correlation with total chlorophyll and carotenoid contents (P < 0.05). ConclusionPigment content influences petal color, pH affects flower color by influencing anthocyanin stability, and soluble sugars indirectly affect color expression. This study provides scientific evidence for understanding the physiological factors that influence the color formation of L. indica flowers.https://journal.scau.edu.cn/article/doi/10.7671/j.issn.1001-411X.202412015lagerstroemia indicaflower colorpigment contentcolorationphysiological factor |
| spellingShingle | Shuaijie LU Ruoyong YIN Xinru QIN Mengjia WU Ruchun XI Xiaomei DENG Physiological study on the flower color formation of five varieties of Lagerstroemia indica Huanan Nongye Daxue xuebao lagerstroemia indica flower color pigment content coloration physiological factor |
| title | Physiological study on the flower color formation of five varieties of Lagerstroemia indica |
| title_full | Physiological study on the flower color formation of five varieties of Lagerstroemia indica |
| title_fullStr | Physiological study on the flower color formation of five varieties of Lagerstroemia indica |
| title_full_unstemmed | Physiological study on the flower color formation of five varieties of Lagerstroemia indica |
| title_short | Physiological study on the flower color formation of five varieties of Lagerstroemia indica |
| title_sort | physiological study on the flower color formation of five varieties of lagerstroemia indica |
| topic | lagerstroemia indica flower color pigment content coloration physiological factor |
| url | https://journal.scau.edu.cn/article/doi/10.7671/j.issn.1001-411X.202412015 |
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