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Anthocyanin, transcription

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https://www.readbyqxmd.com/read/28818381/agfns-overexpression-increase-apigenin-and-decrease-anthocyanins-in-petioles-of-transgenic-celery
#1
Guo-Fei Tan, Jing Ma, Xin-Yue Zhang, Zhi-Sheng Xu, Ai-Sheng Xiong
Apigenin and anthocyanin biosyntheses share common precursors in plants. Flavone synthase (FNS) converts naringenin into apigenin in higher plants. Celery is an important edible and medical vegetable crop that contains apigenin in its tissues. However, the effect of high AgFNS gene expression on the apigenin and anthocyanins contents of purple celery remains to be elucidated. In this study, the AgFNS gene was cloned from purple celery ('Nanxuan liuhe purple celery') and overexpressed in this purple celery to determine its influence on anthocyanins and apigenin contents...
October 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28818365/the-endophytic-fungus-piriformospora-indica-enhances-arabidopsis-thaliana-growth-and-modulates-na-k-homeostasis-under-salt-stress-conditions
#2
Mohamed E Abdelaziz, Dongjin Kim, Shawkat Ali, Nina V Fedoroff, Salim Al-Babili
The mutualistic, endophytic fungus Piriformospora indica has been shown to confer biotic and abiotic stress tolerance to host plants. In this study, we investigated the impact of P. indica on the growth of Arabidopsis plants under normal and salt stress conditions. Our results demonstrate that P. indica colonization increases plant biomass, lateral roots density, and chlorophyll content under both conditions. Colonization with P. indica under salt stress was accompanied by a lower Na(+)/K(+) ratio and less pronounced accumulation of anthocyanin, compared to control plants...
October 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28817092/biochemical-and-comparative-transcriptomic-analyses-identify-candidate-genes-related-to-variegation-formation-in-paeonia-rockii
#3
Qianqian Shi, Long Li, Xiaoxiao Zhang, Jianrang Luo, Xiang Li, Lijuan Zhai, Lixia He, Yanlong Zhang
Paeonia rockii is a wild tree peony species with large and dark purple variegations at the base of its petals. It is the genetic resource for various variegation patterns in tree peony cultivars, which is in contrast to the pure white petals of Paeonia ostii. However, the molecular mechanism underlying the formation of variegation in this plant is still unknown. Here, we conducted Illumina transcriptome sequencing for P. rockii, P. ostii (with pure white petals) and their F1 individuals (with purple-red variegation)...
August 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28811336/catastrophic-unbalanced-genome-rearrangements-cause-somatic-loss-of-berry-color-in-grapevine
#4
Pablo Carbonell-Bejerano, Carolina Royo, Rafael Torres-Pérez, Jérôme Grimplet, Lucie Fernandez, Jose M Franco-Zorrilla, Diego Lijavetzky, Elisa Baroja, Juana Martínez, Enrique García-Escudero, Javier Ibáñez, José M Martínez-Zapater
Grape color somatic variants that can be used to develop new grapevine cultivars occasionally appear associated to deletion events of uncertain origin. To understand the mutational mechanisms generating somatic structural variation in grapevine, we compared the Tempranillo Blanco (TB) white berry somatic variant to its black berry ancestor, Tempranillo Tinto. Whole-genome sequencing (WGS) uncovered a catastrophic genome rearrangement in TB that caused the hemizygous deletion of 313 genes, including the loss of the functional copy for the MYB transcription factors required for anthocyanin pigmentation in the berry skin...
August 15, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28794463/anthocyanin-concentration-depends-on-the-counterbalance-between-its-synthesis-and-degradation-in-plum-fruit-at-high-temperature
#5
Junping Niu, Guojing Zhang, Wenting Zhang, Vasilij Goltsev, Shan Sun, Jinzheng Wang, Pengmin Li, Fengwang Ma
Anthocyanin synthesis and degradation processes were analyzed at transcript, enzyme, and metabolite levels to clarify the effects of high temperature on the concentration of anthocyanin in plum fruit (Prunus salicina Lindl.). The transcript levels of PsPAL, PsCHS, and PsDFR decreased while those of PsANS and PsUFGT were similar at 35 °C compared with 20 °C. The activities of the enzymes encoded by these genes were all increased in fruits at 35 °C. The concentrations of anthocyanins were higher at 35 °C on day 5 but then decreased to lower values on day 9 compared with that at 20 °C...
August 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28769974/flavonoid-accumulation-plays-an-important-role-in-the-rust-resistance-of-malus-plant-leaves
#6
Yanfen Lu, Qi Chen, Yufen Bu, Rui Luo, Suxiao Hao, Jie Zhang, Ji Tian, Yuncong Yao
Cedar-apple rust (Gymnosporangium yamadai Miyabe) is a fungal disease that causes substantial injury to apple trees and results in fruit with reduced size and quality and a lower commercial value. The molecular mechanisms underlying the primary and secondary metabolic effects of rust spots on the leaves of Malus apple cultivars are poorly understood. Using HPLC, we found that the contents of flavonoid compounds, especially anthocyanin and catechin, were significantly increased in rust-infected symptomatic tissue (RIT)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28769969/functional-characterization-of-a-novel-r2r3-myb-transcription-factor-modulating-the-flavonoid-biosynthetic-pathway-from-epimedium-sagittatum
#7
Wenjun Huang, Haiyan Lv, Ying Wang
Epimedium species have been widely used both as traditional Chinese medicinal plants and ornamental perennials. Both flavonols, acting as the major bioactive components (BCs) and anthocyanins, predominantly contributing to the color diversity of Epimedium flowers belong to different classes of flavonoids. It is well-acknowledged that flavonoid biosynthetic pathway is predominantly regulated by R2R3-MYB transcription factor (TF) as well as bHLH TF and WD40 protein at the transcriptional level. MYB TFs specifically regulating anthocyanin or flavonol biosynthetic pathway have been already isolated and functionally characterized from Epimedium sagittatum, but a R2R3-MYB TF involved in regulating both these two pathways has not been functionally characterized to date in Epimedium plants...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28769952/coordinated-regulation-of-anthocyanin-biosynthesis-genes-confers-varied-phenotypic-and-spatial-temporal-anthocyanin-accumulation-in-radish-raphanus-sativus-l
#8
Everlyne M'mbone Muleke, Lianxue Fan, Yan Wang, Liang Xu, Xianwen Zhu, Wei Zhang, Yang Cao, Benard K Karanja, Liwang Liu
Anthocyanins are natural pigments that have important functions in plant growth and development. Radish taproots are rich in anthocyanins which confer different taproot colors and are potentially beneficial to human health. The crop differentially accumulates anthocyanin during various stages of growth, yet molecular mechanisms underlying this differential anthocyanin accumulation remains unknown. In the present study, transcriptome analysis was used to concisely identify putative genes involved in anthocyanin biosynthesis in radish...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28764055/anthocyanin-biosynthesis-and-accumulation-in-blood-oranges-during-postharvest-storage-at-different-low-temperatures
#9
Lourdes Carmona, Berta Alquézar, Viviani V Marques, Leandro Peña
Blood oranges require low temperature for anthocyanin production. We have investigated the activation of anthocyanin biosynthesis and accumulation in the pulp of Moro blood and Pera blond oranges (Citrus sinensis L. Osbeck) stored at either 4 or 9°C after harvesting. Both temperatures stimulated anthocyanin accumulation in blood but not in blond oranges. Nonetheless, blood orange fruits stored at 9°C reached a darker purple coloration, higher anthocyanin contents and enhanced upregulation of genes from the flavonoid pathway in the pulp and juice than those kept at 4°C...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28759152/anthocyanins-from-purple-corn-ameliorated-tnf-%C3%AE-induced-inflammation-and-insulin-resistance-in-3t3-l1-adipocytes-via-activation-of-insulin-signaling-and-enhanced-glut4-translocation
#10
Diego Luna-Vital, Matthew Weiss, Elvira Gonzalez de Mejia
SCOPE: The aim was to compare the effect of an anthocyanin-rich extract from purple corn pericarp (PCW) and pure anthocyanins on adipogenesis, inflammation and insulin resistance in 3T3-L1 adipocytes on basal and inflammatory conditions. METHODS AND RESULTS: Preadipocytes (3T3-L1) were treated during differentiation with or without PCW. Differentiated adipocytes were treated either individually or in combination with tumor necrosis factor TNF-α and PCW, or pure C3G, Pg3G, P3G...
July 31, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28740990/anthocyanins-inhibit-tumor-necrosis-alpha-induced-loss-of-caco-2-cell-barrier-integrity
#11
Eleonora Cremonini, Angela Mastaloudis, Shelly N Hester, Sandra V Verstraeten, Maureen Anderson, Steven M Wood, Andrew L Waterhouse, Cesar G Fraga, Patricia I Oteiza
An increased permeability of the intestinal barrier is proposed as a major event in the pathophysiology of conditions characterized by chronic gut inflammation. This study investigated the capacity of pure anthocyanins (AC), and berry and rice extracts containing different types and amounts of AC, to inhibit tumor necrosis alpha (TNFα)-induced permeabilization of Caco-2 cell monolayers. Caco-2 cells differentiated into intestinal epithelial cell monolayers were incubated in the absence/presence of TNFα, with or without the addition of AC or AC-rich plant extracts (ACRE)...
August 1, 2017: Food & Function
https://www.readbyqxmd.com/read/28740499/multi-omics-and-integrated-network-analyses-reveal-new-insights-into-the-systems-relationships-between-metabolites-structural-genes-and-transcriptional-regulators-in-developing-grape-berries-vitis-vinifera-l-exposed-to-water-deficit
#12
Stefania Savoi, Darren C J Wong, Asfaw Degu, Jose C Herrera, Barbara Bucchetti, Enrico Peterlunger, Aaron Fait, Fulvio Mattivi, Simone D Castellarin
Grapes are one of the major fruit crops and they are cultivated in many dry environments. This study comprehensively characterizes the metabolic response of grape berries exposed to water deficit at different developmental stages. Increases of proline, branched-chain amino acids, phenylpropanoids, anthocyanins, and free volatile organic compounds have been previously observed in grape berries exposed to water deficit. Integrating RNA-sequencing analysis of the transcriptome with large-scale analysis of central and specialized metabolites, we reveal that these increases occur via a coordinated regulation of key structural pathway genes...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28720952/anthocyanins-enriched-purple-tea-exhibits-antioxidant-immunostimulatory-and-anticancer-activities
#13
Robin Joshi, Ajay Rana, Vinay Kumar, Dharmesh Kumar, Yogendra S Padwad, Sudesh Kumar Yadav, Ashu Gulati
Purple coloured tea shoot clones have gained interest due to high content of anthocyanins in addition to catechins. Transcript expression of genes encoding anthocyanidin reductase (ANR), dihydroflavonol-4-reductase (DFR), anthocyanidin synthase (ANS), flavonol synthase (FLS) and leucoantho cyanidin reductase (LAR) enzymes in three new purple shoot tea clones compared with normal tea clone showed higher expression of CsDFR, CsANR, CsANS and lower expression of CsFLS and CsLAR in purple shoot clones compared to normal clone...
June 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28720800/itraq-based-quantitative-proteomic-analysis-reveals-alterations-in-the-metabolism-of-actinidia-arguta
#14
Miaomiao Lin, Jinbao Fang, Xiujuan Qi, Yukuo Li, Jinyong Chen, Leiming Sun, Yunpeng Zhong
Actinidia arguta 'Tianyuanhong' is a new kiwifruit variety with an all-red pericarp and pulp, in contrast to the all-green pulp of A. arguta 'Yongfengyihao'. Transcriptome profile analysis of fruit color has been reported, however, the metabolic mechanisms producing red flesh remain unknown, and it is unclear why the pulp of 'Tianyuanhong' is red rather than green. Herein, we identified differences between the proteomes of two A. arguta cultivars with different fruit color by using iTRAQ-based quantitative proteomic methods during the stage of color change...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28718016/blackcurrant-anthocyanins-stimulated-cholesterol-transport-via-post-transcriptional-induction-of-ldl-receptor-in-caco-2-cells
#15
Bohkyung Kim, Minkyung Bae, Young-Ki Park, Hang Ma, Tao Yuan, Navindra P Seeram, Ji-Young Lee
PURPOSES: We previously showed that polyphenol-rich blackcurrant extract (BCE) showed a hypocholesterolemic effect in mice fed a high fat diet. As direct cholesterol removal from the body via the intestine has been recently appreciated, we investigated the effect of BCE on the modulation of genes involved in intestinal cholesterol transport using Caco-2 cells as an in vitro model. METHODS: Caco-2 cells were treated with BCE to determine its effects on mRNA and protein expression of genes important for intestinal cholesterol transport, low-density lipoprotein (LDL) uptake, cellular cholesterol content, and cholesterol transport from basolateral to apical membrane of Caco-2 cell monolayers...
July 17, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28713413/identification-of-conserved-and-novel-micrornas-in-blueberry
#16
Junyang Yue, Xiaohui Lu, Huan Zhang, Jiao Ge, Xueling Gao, Yongsheng Liu
MicroRNAs (miRNAs) are a class of small endogenous RNAs that play important regulatory roles in cells by negatively affecting gene expression at both transcriptional and post-transcriptional levels. There have been extensive studies aiming to identify miRNAs and to elucidate their functions in various plant species. In the present study, we employed the high-throughput sequencing technology to profile miRNAs in blueberry fruits. A total of 9,992,446 small RNA tags with sizes ranged from 18 to 30 nt were obtained, indicating that blueberry fruits have a large and diverse small RNA population...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28704468/thmyc4e-candidate-blue-aleurone-1-gene-controlling-the-associated-trait-in-triticum-aestivum
#17
Na Li, Shiming Li, Kunpu Zhang, Wenjie Chen, Bo Zhang, Daowen Wang, Dengcai Liu, Baolong Liu, Huaigang Zhang
Blue aleurone is a useful and interesting trait in common wheat that was derived from related species. Here, transcriptomes of blue and white aleurone were compared for isolating Blue aleurone 1 (Ba1) transferred from Thinopyrum ponticum. In the genes involved in anthocyanin biosynthesis, only a basic helix-loop-helix (bHLH) transcription factor, ThMYC4E, had a higher transcript level in blue aleurone phenotype, and was homologous to the genes on chromosome 4 of Triticum aestivum. ThMYC4E carried the characteristic domains (bHLH-MYC_N, HLH and ACT-like) of a bHLH transcription factor, and clustered with genes regulating anthocyanin biosynthesis upon phylogenetic analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28701702/the-influence-of-postharvest-uv-c-treatment-on-anthocyanin-biosynthesis-in-fresh-cut-red-cabbage
#18
Jie Wu, Wen Liu, Li Yuan, Wen-Qiang Guan, Charles S Brennan, Yang-Yong Zhang, Jie Zhang, Zhi-Dong Wang
Red cabbage (Brassica oleracea L. var. capitata f. rubra DC.) is a fresh edible vegetable consumed globally that contains high levels of antioxidant compounds including anthocyanins. In this study, fresh-cut red cabbage was treated with different Ultraviolet-C (UV-C) dosages. Fifteen cyanidin derivatives were observed in UV-C treated fresh-cut red cabbage; four of these were anthocyanins absent in control samples. The optimum dose of UV-C for enhancing total anthocyanin content in fresh-cut red cabbage was 3...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28698354/enhanced-secondary-and-hormone-metabolism-in-leaves-of-arbuscular-mycorrhizal-medicago-truncatula
#19
Lisa Adolfsson, Hugues Nziengui, Ilka N Abreu, Jan Šimura, Azeez Beebo, Andrei Herdean, Jila Aboalizadeh, Jitka Široká, Thomas Moritz, Ondřej Novák, Karin Ljung, Benoît Schoefs, Cornelia Spetea
Arbuscular mycorrhizas (AM) are the most common symbiotic associations between plant's root compartment and fungi. They provide nutritional benefit (mostly inorganic phosphate, Pi) leading to improved growth, and non-nutritional benefits including defense responses to environmental cues throughout the host plant, which in return delivers carbohydrates to the symbiont. However, how transcriptional and metabolic changes occurring in leaves of AM plants differ from those induced by Pi fertilization is poorly understood...
July 11, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28691397/cyanidin-3-glucoside-increases-whole-body-energy-metabolism-by-upregulating-brown-adipose-tissue-mitochondrial-function
#20
Yilin You, Xiaoxue Yuan, Xiaomeng Liu, Chen Liang, Minghui Meng, Yuanyuan Huang, Xue Han, Jielong Guo, Yu Guo, Chenglong Ren, Qianwen Zhang, Xiangyu Sun, Tingting Ma, Guojie Liu, Wanzhu Jin, Weidong Huang, Jicheng Zhan
SCOPE: Obesity develops when energy intake exceeds energy expenditure. Promoting brown adipose tissue (BAT) formation and function increases energy expenditure and may protect against obesity. Cyanidin-3-glucoside (C3G) is an anthocyanin compound which occurs naturally in many fruits and vegetables. In this study, we investigated the effect and mechanism of C3G on the prevention of obesity. METHODS AND RESULTS: Db/db mice received C3G dissolved in drinking water for 16 weeks; Drinking water served as the vehicle treatment...
July 10, 2017: Molecular Nutrition & Food Research
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