| Title: | Proteomics Reveal the Profiles of Color Change in Brunfelsia acuminata Flowers |
| Author(s): | Li M; Sun Y; Lu X; Debnath B; Mitra S; Qiu D; |
| Address: | "College of horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China. liminzyl@sina.com. College of horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China. yuetingsun@126.com. College of horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China. xc531599541@126.com. College of horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China. biswo26765@yahoo.com. College of horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China. sangeeta.dae@hotmail.com. College of horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China. qiudl1970@fafu.edu.cn" |
| ISSN/ISBN: | 1422-0067 (Electronic) 1422-0067 (Linking) |
| Abstract: | "Brunfelsia acuminata is a popular ornamental plant with different colors resulted from the rapid change of color after blooming. The petals at day one (purple), day three (white and purple) and day five (white) were used to analyze the reason of flower color change by a comparative proteomics approach, gas chromatography coupled to a time-of-flight mass analyzer (GC-TOF-MS) and quantitative real-time PCR (qRT-PCR). The results showed that the 52 identified proteins were classified into eight functional groups, 6% of which were related to the anthocyanin metabolic pathway. The expression levels of all anthocyanin proteins from the first day to fifth day were remarkably down-regulated, which was consistent with the changing patterns of the key genes (CHS, CHI and F3'5'H) in petals. Simultaneously, the main floral volatile components including Linalool and 2-Hexenal (E) were identified, and the contents of 2-Hexenal at day five increased dramatically. Moreover, the content of flavonoids and total phenolic increased at day five. The majority of the proteins associated with stress defense and senescence proteins were up-regulated and the activities of peroxidase (POD), superoxide dismutase (SOD) and catalase (CAT) in the petals at day five were significantly higher than others. It was concluded that the competition in the precursors of metabolic pathways occurs and causes the flow of metabolite to the pathways of floral scent and lignin derived from the shikimate pathway or degrade into others. Therefore, the anthocyanin content significantly decreased, and the petal color changed from deep purple to white" |
| Keywords: | "Anthocyanins/analysis/genetics/*metabolism Biosynthetic Pathways Flowers/chemistry/genetics/*growth & development/metabolism Gene Expression Regulation, Plant Pigmentation Plant Proteins/analysis/genetics/*metabolism Proteomics Solanaceae/chemistry/geneti;" |
| Notes: | "MedlineLi, Min Sun, Yueting Lu, Xiaocao Debnath, Biswojit Mitra, Sangeeta Qiu, Dongliang eng 102/712018011/The Construction fund of Plateau Discipline of Fujian Province and Fujian Agriculture and Forestry University Outstanding Doctoral Thesis Fund, China/ Switzerland 2019/04/26 Int J Mol Sci. 2019 Apr 23; 20(8):2000. doi: 10.3390/ijms20082000" |
