1
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Wang Z, Du Y, Li J, Zheng W, Gong B, Jin X, Zhou X, Yang H, Yang F, Guo J, Liu H, Wang M, Yan L, Zhu Y, Li X, Xu J, Wang J, Ma Z. Changes in health-promoting metabolites associated with high-altitude adaptation in honey. Food Chem 2024; 449:139246. [PMID: 38604035 DOI: 10.1016/j.foodchem.2024.139246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/27/2024] [Accepted: 04/02/2024] [Indexed: 04/13/2024]
Abstract
The levels of metabolites in honey are influenced by floral origin, production region, and bee species. However, how environmental factors affect honey quality remains unclear. Based on untargeted metabolomics and using UPLC Q-Orbitrap MS, we analyzed 3596 metabolites in 51 honey samples from Yunnan and Shennongjia. Comparative analysis revealed that geniposidic acid, kynurenic acid and caffieine accumulated at significantly different levels between Shennongjia and Yunnan honey. Based on cluster structure analysis, 36 Yunnan honey samples were divided into two distinct groups by altitude. Notably, quercetin, hyperoside, taxifolin, rutin, tryptophan, astragalin and phenylalanine were higher levels in high-altitude honey (>1700 m), whereas abscisic acid was higher levels in low-altitude honey (≤1700 m). Among these, significantly elevated levels of hyperoside, taxfolin, astragalin, and tryptophan were observed in honey collected from high-altitude areas in Shennongjia. Our findings highlight the effect of altitude on honey health-promoting components, providing valuable insights into honey quality.
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Affiliation(s)
- Ziyuan Wang
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, China
| | - Yuxia Du
- Tropical and Subtropical Cash Crops Research Institute; Yunnan Academy of Agricultural Sciences, Baoshan 678000, China
| | - Jingjing Li
- Hubei Provincial Institute of Veterinary Drug Control, Wuhan 430064, China
| | - Weikang Zheng
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, China
| | - Bo Gong
- Hubei Provincial Institute of Veterinary Drug Control, Wuhan 430064, China
| | - Xiue Jin
- Hubei Provincial Institute of Veterinary Drug Control, Wuhan 430064, China
| | - Xianyan Zhou
- Tropical and Subtropical Cash Crops Research Institute; Yunnan Academy of Agricultural Sciences, Baoshan 678000, China
| | - Hongxia Yang
- Tropical and Subtropical Cash Crops Research Institute; Yunnan Academy of Agricultural Sciences, Baoshan 678000, China
| | - Fan Yang
- Tropical and Subtropical Cash Crops Research Institute; Yunnan Academy of Agricultural Sciences, Baoshan 678000, China
| | - Jun Guo
- Tropical and Subtropical Cash Crops Research Institute; Yunnan Academy of Agricultural Sciences, Baoshan 678000, China
| | - Hangxiu Liu
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, China; National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100010, China
| | - Meng Wang
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, China
| | - Lu Yan
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, China
| | - Yi Zhu
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, China
| | - Xinxin Li
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiahao Xu
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, China
| | - Jun Wang
- Hubei Provincial Institute of Veterinary Drug Control, Wuhan 430064, China
| | - Zhaocheng Ma
- Department of Nutrition and Food Hygiene, School of Public Health, Wuhan University, Wuhan 430071, China.
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2
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Wu X, Xiao J. Response and Adaptive Mechanism of Flavonoids in Pigmented Potatoes at Different Altitudes. PLANT & CELL PHYSIOLOGY 2024; 65:1184-1196. [PMID: 38625713 DOI: 10.1093/pcp/pcae045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 03/18/2024] [Accepted: 04/15/2024] [Indexed: 04/17/2024]
Abstract
Altitude is an important ecological factor affecting plant physiology and ecology, material metabolism and gene expression. Tuber color changes were observed in purple and red potatoes growing at four different elevations ranging from 1,800 ± 50 to 3,300 ± 50 m in the Tiger Leaping Gorge area of Yunnan Province. The results showed that the total phenol content, total flavone content, total anthocyanin content and biological yield of anthocyanin increased with increasing altitude until 2,800 ± 50 m, and the highest anthocyanin content were detected in the purple potato Huaxinyangyu and the red potato Jianchuanhong at the flowering stage and budding stage, respectively. Combined transcriptomic and metabolomic analyses revealed that the content and diversity of flavonoids are associated with genes expression via the promotion of propane metabolism to improve potato adaptation to different altitudes. These results provide a foundation for understanding the coloring mechanism and creating new potato germplasms with high resistance and good quality via genetic manipulation.
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Affiliation(s)
| | - Jiping Xiao
- College of Agronomy and Biotechnology, Yunnan Agricultural University, No.95 Jinhei Road, Panlong District, Kunming 650201, China
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3
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Li Q, Mo R, Shen D, Sun S, Tang F, Guo Y, Liu Y. External browning mechanism in walnut kernel pellicles under different drying conditions based on the combination of widely-targeted and anthocyanin-targeted metabolomics. Food Chem 2024; 460:140440. [PMID: 39032301 DOI: 10.1016/j.foodchem.2024.140440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 07/03/2024] [Accepted: 07/10/2024] [Indexed: 07/23/2024]
Abstract
There has been limited research on external browning (EB) of walnut. This work discovered 1888 metabolites and 34 anthocyanins in walnut pellicles (WPs) after three drying methods using widely-targeted and anthocyanin-targeted metabolomics. Based on OPLS-DA and correlation analysis, 64 temperature-responsive metabolites (TRMs; 13 anthocyanins and 51 flavonoids) were identified as critical components in relation to EB. Notably, 14 flavonoids exhibited a strong positive correlation (r > 0.9) with the browning index (BI), with upregulation of >60% after browning. Most of the identified anthocyanins were negatively linked with BI because of degradation (>45%), with correlation coefficients ranging from 0.75 to 0.97. Furthermore, anthocyanidin reductase and laccase were the two key enzymes involved in the EB of WPs, with their activities increasing by 10.57-fold and 1.32-fold, respectively, with increasing drying temperature. A metabolic pathway network of the TRM was built to provide insights into the potential mechanisms underlying EB in WPs.
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Affiliation(s)
- Qingyang Li
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, PR China; Institute of Pesticide and Environmental Toxicology, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
| | - Runhong Mo
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, PR China
| | - Danyu Shen
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, PR China
| | - Shiman Sun
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, PR China
| | - Fubin Tang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, PR China
| | - Yirong Guo
- Institute of Pesticide and Environmental Toxicology, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
| | - Yihua Liu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, PR China.
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Liu W, Yu A, Xie Y, Yao H, Sun C, Gao H, He J, Ao C, Tang D. Drying enhances the antioxidant activity of Allium mongolicum Regel through the phenylpropane and AA-MA pathway as shown by metabolomics. Food Chem X 2024; 22:101436. [PMID: 38742170 PMCID: PMC11089305 DOI: 10.1016/j.fochx.2024.101436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 04/22/2024] [Accepted: 04/30/2024] [Indexed: 05/16/2024] Open
Abstract
Fresh Allium mongolicum Regel (FA) and dried A. mongolicum Regel (DA) are significantly different in antioxidant activity. However, the relevant mechanisms have not yet been explored. We evaluated the antioxidant activities of two varieties of FA and DA and characterized their metabolites using targeted metabolomics. The effect of different metabolites on the antioxidant activity of A. mongolicum Regel was investigated by multivariate analysis. A total of 713 metabolites were detected in all samples. Pearson correlation analysis demonstrated that the key primary metabolites were directly and significantly correlated with the total phenolic content (TPC) and total flavonoid content (TFC), while the secondary metabolites were directly correlated with antioxidant activity. The higher antioxidant activity of DA may be mainly attributed to the higher TPC and TFC. This study revealed the potential mechanism by which drying enhances the antioxidant activity of A. mongolicum Regel.
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Affiliation(s)
- Wangjing Liu
- College of Animal Science and Technology, Gansu Agricultural University, No.1 Yingmen Village Anning, Lanzhou, Gansu 730070, People's Republic of China
| | - Aihuan Yu
- College of Animal Science and Technology, Gansu Agricultural University, No.1 Yingmen Village Anning, Lanzhou, Gansu 730070, People's Republic of China
| | - Yaodi Xie
- College of Animal Science and Technology, Gansu Agricultural University, No.1 Yingmen Village Anning, Lanzhou, Gansu 730070, People's Republic of China
| | - Haibo Yao
- College of Animal Science and Technology, Gansu Agricultural University, No.1 Yingmen Village Anning, Lanzhou, Gansu 730070, People's Republic of China
| | - Chenxu Sun
- College of Animal Science and Technology, Gansu Agricultural University, No.1 Yingmen Village Anning, Lanzhou, Gansu 730070, People's Republic of China
| | - Huixia Gao
- College of Animal Science and Technology, Gansu Agricultural University, No.1 Yingmen Village Anning, Lanzhou, Gansu 730070, People's Republic of China
| | - Jianjian He
- College of Animal Science and Technology, Gansu Agricultural University, No.1 Yingmen Village Anning, Lanzhou, Gansu 730070, People's Republic of China
| | - Changjin Ao
- Inner Mongolia Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, People's Republic of China
| | - Defu Tang
- College of Animal Science and Technology, Gansu Agricultural University, No.1 Yingmen Village Anning, Lanzhou, Gansu 730070, People's Republic of China
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Tang C, Fan Y, Wang T, Wang J, Xiao M, He M, Chang X, Li Y, Li X. Metabolomic Profiling of Floccularia luteovirens from Different Geographical Regions Proposes a Novel Perspective on Their Antioxidative Activities. Antioxidants (Basel) 2024; 13:620. [PMID: 38790725 PMCID: PMC11118160 DOI: 10.3390/antiox13050620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024] Open
Abstract
Floccularia luteovirens, an endemic resource of the Tibetan Plateau, possesses significant medicinal and ecological values. However, the understanding of antioxidant capacity and metabolic profiling of F. luteovirens from diverse regions remains elusive due to limited resources. Therefore, to comprehensively comprehend the antioxidant capacity and metabolite diversity of F. luteovirens, we conducted a rounded analysis of its antioxidant capacity from three distinct regions using both untargeted and targeted metabolomics. Determination of antioxidant indices, such as ferric ion-reducing antioxidant power (FRAP), total phenolic content (TPC), and flavonoid content (FC), revealed the robust antioxidant capacity of F. luteovirens. QL F. luteovirens (QLFL) exhibited no significant difference compared to ZD F. luteovirens (ZDFL); however, both were significantly distinct from XH F. luteovirens (XHFL) across multiple indices. Furthermore, a positive correlation was observed between FRAP and flavonoid content. A total of 5782 metabolites were identified and chemically classified. Metabolites of F. luteovirens varied significantly at different regions and eight key differential metabolites were screened. Phenylalanine, tyrosine and tryptophan biosynthesis, phenylalanine metabolism, and cyanoamino acid metabolism were the main different regulatory pathways. Consequently, the disparities in the antioxidant activity of F. luteovirens may primarily be ascribed to the biosynthesis and metabolism of phenylalanine, while vanillic acid could potentially serve as a pivotal metabolite influencing the antioxidative capacity of F. luteovirens by targeted metabolomics. These findings enhance our understanding of the composition of F. luteovirens and provide valuable resources for its comprehensive utilization and targeted development.
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Affiliation(s)
- Chuyu Tang
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai Academy of Animal and Veterinary Sciences, Qinghai University, Xining 810016, China; (C.T.); (Y.F.); (T.W.); (M.X.); (M.H.)
| | - Yuejun Fan
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai Academy of Animal and Veterinary Sciences, Qinghai University, Xining 810016, China; (C.T.); (Y.F.); (T.W.); (M.X.); (M.H.)
| | - Tao Wang
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai Academy of Animal and Veterinary Sciences, Qinghai University, Xining 810016, China; (C.T.); (Y.F.); (T.W.); (M.X.); (M.H.)
| | - Jie Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China;
| | - Mengjun Xiao
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai Academy of Animal and Veterinary Sciences, Qinghai University, Xining 810016, China; (C.T.); (Y.F.); (T.W.); (M.X.); (M.H.)
| | - Min He
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai Academy of Animal and Veterinary Sciences, Qinghai University, Xining 810016, China; (C.T.); (Y.F.); (T.W.); (M.X.); (M.H.)
| | - Xiyun Chang
- Qinghai Institute of Health Sciences, Xining 810016, China;
| | - Yuling Li
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai Academy of Animal and Veterinary Sciences, Qinghai University, Xining 810016, China; (C.T.); (Y.F.); (T.W.); (M.X.); (M.H.)
| | - Xiuzhang Li
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai Academy of Animal and Veterinary Sciences, Qinghai University, Xining 810016, China; (C.T.); (Y.F.); (T.W.); (M.X.); (M.H.)
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Lyu X, Diao H, Li J, Meng Z, Li B, Zhou L, Guo S. Untargeted metabolomics in Anectocillus roxburghii with habitat heterogeneity and the key abiotic factors affecting its active ingredients. FRONTIERS IN PLANT SCIENCE 2024; 15:1368880. [PMID: 38533408 PMCID: PMC10964796 DOI: 10.3389/fpls.2024.1368880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 02/26/2024] [Indexed: 03/28/2024]
Abstract
Introduction Anoectochilus roxburghii is a rare, endangered herb with diverse pharmacological properties. Understanding the main metabolite types and characteristics of wild A. roxburghii is important for efficiently utilizing resources and examining quality according to origin. Methods Samples were collected from the main production areas across five regions in Fujian Province, China. An untargeted metabolomics analysis was performed on the entire plants to explore their metabolic profiles. We utilized UPLC-MS/MS to specifically quantify eight targeted flavonoids in these samples. Subsequently, correlation analysis was conducted to investigate the relationships between the flavonoids content and both the biological characteristics and geographical features. Results A comprehensive analysis identified a total of 3,170 differential metabolites, with terpenoids and flavonoids being the most prevalent classes. A region-specific metabolite analysis revealed that the Yongchun (YC) region showed the highest diversity of unique metabolites, including tangeretin and oleanolic acid. Conversely, the Youxi (YX) region was found to have the smallest number of unique metabolites, with only one distinct compound identified. Further investigation through KEGG pathway enrichment analysis highlighted a significant enrichment in pathways related to flavonoid biosynthesis. Further examination of the flavonoid category showed that flavonols were the most differentially abundant. We quantified eight specific flavonoids, finding that, on average, the YX region exhibited higher levels of these compounds. Correlation analysis highlighted a significant association between flavonoids and habitat, especially temperature and humidity. Discussion Untargeted metabolomics via LC-MS was suitable for identifying region-specific metabolites and their influence via habitat heterogeneity. The results of this study serve as a new theoretical reference for unique markers exclusively present in a specific sample group.
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Affiliation(s)
- Xinkai Lyu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- State Key Laboratory of Basis and New Drug Development of Natural and Nuclear Drugs, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haixin Diao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiaxue Li
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhixia Meng
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bing Li
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lisi Zhou
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shunxing Guo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- State Key Laboratory of Basis and New Drug Development of Natural and Nuclear Drugs, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Guo G, Liu L, Shen T, Wang H, Zhang S, Sun Y, Xiong G, Tang X, Zhu L, Jia B. Genome-wide identification of GA2ox genes family and analysis of PbrGA2ox1-mediated enhanced chlorophyll accumulation by promoting chloroplast development in pear. BMC PLANT BIOLOGY 2024; 24:166. [PMID: 38433195 PMCID: PMC10910807 DOI: 10.1186/s12870-024-04842-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 02/20/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Chlorophyll (Chl) is an agronomic trait associated with photosynthesis and yield. Gibberellin 2-oxidases (GA2oxs) have previously been shown to be involved in Chl accumulation. However, whether and how the PbrGA2ox proteins (PbrGA2oxs) mediate Chl accumulation in pear (Pyrus spp.) is scarce. RESULTS Here, we aimed to elucidate the role of the pear GA2ox gene family in Chl accumulation and the related underlying mechanisms. We isolated 13 PbrGA2ox genes (PbrGA2oxs) from the pear database and identified PbrGA2ox1 as a potential regulator of Chl accumulation. We found that transiently overexpressing PbrGA2ox1 in chlorotic pear leaves led to Chl accumulation, and PbrGA2ox1 silencing in normal pear leaves led to Chl degradation, as evident by the regreening and chlorosis phenomenon, respectively. Meanwhile, PbrGA2ox1-overexpressing (OE) tobacco plants discernably exhibited Chl built-up, as evidenced by significantly higher Pn and Fv/Fm. In addition, RNA sequencing (RNA-seq), physiological and biochemical investigations revealed an increase in abscisic acid (ABA), methyl jasmonate (MeJA), and salicylic acid (SA) concentrations and signaling pathways; a marked elevation in reducing and soluble sugar contents; and a marginal decline in the starch and sucrose levels in OE plants. Interestingly, PbrGA2ox1 overexpression did not prominently affect Chl synthesis. However, it indeed facilitated chloroplast development by increasing chloroplast number per cell and compacting the thylakoid granum stacks. These findings might jointly contribute to Chl accumulation in OE plants. CONCLUSION Overall, our results suggested that GA2oxs accelerate Chl accumulation by stimulating chloroplast development and proved the potential of PbrGA2ox1 as a candidate gene for genetically breeding biofortified pear plants with a higher yield.
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Affiliation(s)
- Guoling Guo
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Lun Liu
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Taijing Shen
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Haozhe Wang
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Shuqin Zhang
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Yu Sun
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Guoyu Xiong
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Xiaomei Tang
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Liwu Zhu
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Bing Jia
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China.
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8
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Cui L, Li M, Zhang X, Guo Z, Li K, Shi Y, Wang Q, Guo H. Enhanced UV-B Radiation in Potato Stems and Leaves Promotes the Accumulation of Anthocyanins in Tubers. Curr Issues Mol Biol 2023; 45:9943-9960. [PMID: 38132467 PMCID: PMC10742819 DOI: 10.3390/cimb45120621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/06/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023] Open
Abstract
Enhanced ultraviolet-B (UV-B) radiation promotes anthocyanin biosynthesis in leaves, flowers and fruits of plants. However, the effects and underlying mechanisms of enhanced UV-B radiation on the accumulation of anthocyanins in the tubers of potatoes (Solanum tuberosum L.) remain unclear. Herein, reciprocal grafting experiments were first conducted using colored and uncolored potatoes, demonstrating that the anthocyanins in potato tubers were synthesized in situ, and not transported from the leaves to the tubers. Furthermore, the enhanced UV-B radiation (2.5 kJ·m-2·d-1) on potato stems and leaves significantly increased the contents of total anthocyanin and monomeric pelargonidin and peonidin in the red-fleshed potato '21-1' tubers, compared to the untreated control. A comparative transcriptomic analysis showed that there were 2139 differentially expressed genes (DEGs) under UV-B treatment in comparison to the control, including 1724 up-regulated and 415 down-regulated genes. The anthocyanin-related enzymatic genes in the tubers such as PAL, C4H, 4CL, CHS, CHI, F3H, F3'5'H, ANS, UFGTs, and GSTs were up-regulated under UV-B treatment, except for a down-regulated F3'H. A known anthocyanin-related transcription factor StbHLH1 also showed a significantly higher expression level under UV-B treatment. Moreover, six differentially expressed MYB transcription factors were remarkably correlated to almost all anthocyanin-related enzymatic genes. Additionally, a DEGs enrichment analysis suggested that jasmonic acid might be a potential UV-B signaling molecule involved in the UV-B-induced tuber biosynthesis of anthocyanin. These results indicated that enhanced UV-B radiation in potato stems and leaves induced anthocyanin accumulation in the tubers by regulating the enzymatic genes and transcription factors involved in anthocyanin biosynthesis. This study provides novel insights into the mechanisms of enhanced UV-B radiation that regulate the anthocyanin biosynthesis in potato tubers.
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Affiliation(s)
- Lingyan Cui
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China; (L.C.); (M.L.); (X.Z.); (K.L.); (Y.S.)
- Yunnan Engineering Research Center of Tuber and Root Crop Bio-Breeding and Healthy Seed Propagation, Yunnan Agricultural University, Kunming 650201, China
- Tuber and Root Crops Research Institute, Yunnan Agricultural University, Kunming 650201, China;
| | - Maoxing Li
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China; (L.C.); (M.L.); (X.Z.); (K.L.); (Y.S.)
- Yunnan Engineering Research Center of Tuber and Root Crop Bio-Breeding and Healthy Seed Propagation, Yunnan Agricultural University, Kunming 650201, China
- Tuber and Root Crops Research Institute, Yunnan Agricultural University, Kunming 650201, China;
| | - Xing Zhang
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China; (L.C.); (M.L.); (X.Z.); (K.L.); (Y.S.)
- Yunnan Engineering Research Center of Tuber and Root Crop Bio-Breeding and Healthy Seed Propagation, Yunnan Agricultural University, Kunming 650201, China
- Tuber and Root Crops Research Institute, Yunnan Agricultural University, Kunming 650201, China;
| | - Zongming Guo
- Tuber and Root Crops Research Institute, Yunnan Agricultural University, Kunming 650201, China;
| | - Kaifeng Li
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China; (L.C.); (M.L.); (X.Z.); (K.L.); (Y.S.)
- Yunnan Engineering Research Center of Tuber and Root Crop Bio-Breeding and Healthy Seed Propagation, Yunnan Agricultural University, Kunming 650201, China
- Tuber and Root Crops Research Institute, Yunnan Agricultural University, Kunming 650201, China;
| | - Yuhan Shi
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China; (L.C.); (M.L.); (X.Z.); (K.L.); (Y.S.)
| | - Qiong Wang
- Tuber and Root Crops Research Institute, Yunnan Agricultural University, Kunming 650201, China;
| | - Huachun Guo
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China; (L.C.); (M.L.); (X.Z.); (K.L.); (Y.S.)
- Yunnan Engineering Research Center of Tuber and Root Crop Bio-Breeding and Healthy Seed Propagation, Yunnan Agricultural University, Kunming 650201, China
- Tuber and Root Crops Research Institute, Yunnan Agricultural University, Kunming 650201, China;
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9
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Qi Z, Wang W, Liu Z, Niu N, Li Z, Chen L, Zhu J, Li D, Liu Y. Anthocyanin Profiles in Colored Potato Tubers at Different Altitudes by HPLC-MS Analysis with Optimized Ultrasound-Assisted Extraction. Foods 2023; 12:4175. [PMID: 38002232 PMCID: PMC10670562 DOI: 10.3390/foods12224175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/13/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023] Open
Abstract
The elevated anthocyanin content of colored potatoes produces numerous health benefits in humans. However, there is a paucity of studies exploring the influence of environmental factors on anthocyanin components in colored potatoes. In our work, the Box-Behnken design was adopted to optimize anthocyanin extraction from colored potato tubers with ultrasound assistance. The response surface model was stable and reliable (R2 = 0.9775), and under optimal extraction conditions, namely an ultrasonic power of 299 W, an extraction time of 10 min, and a solid-liquid ratio of 1:30 (g/mL), the yield reached 4.33 mg/g. Furthermore, the anthocyanins of colored potato tubers grown at different altitudes were determined by high-performance liquid chromatography-mass spectrometry with optimized ultrasound-assisted extraction, the results showed that anthocyanin levels were the highest at high altitudes, whereas anthocyanins were almost undetectable at mid-altitude. Moreover, the types of anthocyanin compounds present in colored potatoes varied at different altitudes. The red clones exhibited substantial accumulation of pelargonidin across all three altitudes. In contrast, the main anthocyanins found in purple clones were malvidin, petunidin, and cyanidin. We identified the anthocyanin components with a strong correlation to the environment, thereby establishing a fundamental basis for the breeding of potato clones with high anthocyanin content.
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Affiliation(s)
- Zheying Qi
- Agronomy College, Gansu Agricultural University, Lanzhou 730070, China; (Z.Q.)
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Weilu Wang
- Agronomy College, Gansu Agricultural University, Lanzhou 730070, China; (Z.Q.)
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhen Liu
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Na Niu
- Agronomy College, Gansu Agricultural University, Lanzhou 730070, China; (Z.Q.)
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhitao Li
- Agronomy College, Gansu Agricultural University, Lanzhou 730070, China; (Z.Q.)
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Limin Chen
- Agronomy College, Gansu Agricultural University, Lanzhou 730070, China; (Z.Q.)
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Jinyong Zhu
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Dechen Li
- Agronomy College, Gansu Agricultural University, Lanzhou 730070, China; (Z.Q.)
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Yuhui Liu
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
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