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Anthocyanin, regulation

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https://www.readbyqxmd.com/read/28936215/omics-approaches-for-understanding-grapevine-berry-development-regulatory-networks-associated-with-endogenous-processes-and-environmental-responses
#1
REVIEW
Alejandra Serrano, Carmen Espinoza, Grace Armijo, Claudio Inostroza-Blancheteau, Evelyn Poblete, Carlos Meyer-Regueiro, Anibal Arce, Francisca Parada, Claudia Santibáñez, Patricio Arce-Johnson
Grapevine fruit development is a dynamic process that can be divided into three stages: formation (I), lag (II), and ripening (III), in which physiological and biochemical changes occur, leading to cell differentiation and accumulation of different solutes. These stages can be positively or negatively affected by multiple environmental factors. During the last decade, efforts have been made to understand berry development from a global perspective. Special attention has been paid to transcriptional and metabolic networks associated with the control of grape berry development, and how external factors affect the ripening process...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28926798/cloning-and-expression-profiling-of-the-pacsnrk2-and-pacpp2c-gene-families-during-fruit-development-aba-treatment-and-dehydration-stress-in-sweet-cherry
#2
Xinjie Shen, Xiao Guo, Di Zhao, Qiang Zhang, Yuzhuang Jiang, Yantao Wang, Xiang Peng, Yan Wei, Zefeng Zhai, Wei Zhao, Tianhong Li
Plant SNF1-related protein kinase 2 (SnRK2) and protein phosphatase 2C (PP2C) family members are core components of the ABA signal transduction pathway. SnRK2 and PP2C proteins have been suggested to play crucial roles in fruit ripening and improving plant tolerance to drought stress, but supporting genetic information has been lacking in sweet cherry (Prunus avium L.). Here, we cloned six full-length SnRK2 genes and three full-length PP2C genes from sweet cherry cv. Hong Deng. Quantitative PCR analysis revealed that PacSnRK2...
September 6, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28924499/genome-wide-identification-of-the-mads-box-transcription-factor-family-in-pear-pyrus-bretschneideri-reveals-evolution-and-functional-divergence
#3
Runze Wang, Meiling Ming, Jiaming Li, Dongqing Shi, Xin Qiao, Leiting Li, Shaoling Zhang, Jun Wu
MADS-box transcription factors play significant roles in plant developmental processes such as floral organ conformation, flowering time, and fruit development. Pear (Pyrus), as the third-most crucial temperate fruit crop, has been fully sequenced. However, there is limited information about the MADS family and its functional divergence in pear. In this study, a total of 95 MADS-box genes were identified in the pear genome, and classified into two types by phylogenetic analysis. Type I MADS-box genes were divided into three subfamilies and type II genes into 14 subfamilies...
2017: PeerJ
https://www.readbyqxmd.com/read/28919902/expression-differences-of-pigment-structural-genes-and-transcription-factors-explain-flesh-coloration-in-three-contrasting-kiwifruit-cultivars
#4
Yanfei Liu, Bin Zhou, Yingwei Qi, Xin Chen, Cuihua Liu, Zhande Liu, Xiaolin Ren
Fruits of kiwifruit cultivars (Actinidia chinensis and A. deliciosa) generally have green or yellow flesh when ripe. A small number of genotypes have red flesh but this coloration is usually restricted to the inner pericarp. Three kiwifruit cultivars having red ('Hongyang'), or yellow ('Jinnong-2'), or green ('Hayward') flesh were investigated for their color characteristics and pigment contents during development and ripening. The results show the yellow of the 'Jinnong-2' fruit is due to the combined effects of chlorophyll degradation and of beta-carotene accumulation...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28916569/effects-of-anthocyanins-on-cardiometabolic-health-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#5
REVIEW
LiPing Yang, WenHua Ling, ZhiCheng Du, YuMing Chen, Dan Li, ShiZhou Deng, ZhaoMin Liu, LiLi Yang
Numerous clinical trials have examined the role of anthocyanins on cardiometabolic health, but their effects have not been quantitatively synthesized and systematically evaluated. The aim of our study was to conduct a systematic review and meta-analysis of randomized controlled trials (RCTs) assessing the effects of anthocyanins on glycemic regulation and lipid profiles in both healthy populations and those with cardiometabolic diseases. The MEDLINE, EMBASE, Cochrane database, OVID EBM Reviews, and clinicaltrials...
September 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28911610/myrciaria-cauliflora-extract-improves-diabetic-nephropathy-via-suppression-of-oxidative-stress-and-inflammation-in-streptozotocin-nicotinamide-mice
#6
Jeng-Dong Hsu, Chia-Chun Wu, Chi-Nan Hung, Chau-Jong Wang, Hui-Pei Huang
Myrciaria cauliflora is a functional food rich in anthocyanins, possessing antioxidative and anti-inflammatory properties. Our previous results demonstrated M. cauliflora extract (MCE) had beneficial effects in diabetic nephropathy (DN) and via the inhibition of Ras/PI3K/Akt and kidney fibrosis-related proteins. The purpose of this study was to assess the benefit of MCE in diabetes associated with kidney inflammation and glycemic regulation in streptozotocin-nicotinamide (STZ/NA)-induced diabetic mice. Compared with the untreated diabetic group, MCE significantly improved blood glucose and serum biochemical characteristic levels...
October 2016: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28903901/genome-wide-analysis-of-the-gst-gene-family-in-gossypium-hirsutum-l
#7
Lei Xu, Wen Chen, Guo-Yang Si, Yi-Yuan Huang, Yi Lin, Yong-Ping Cai, Jun-Shan Gao
Glutathione-S-transferase (GST) is a ubiquitous multi-functional protein superfamily that plays important roles in plant primary and secondary metabolism, stress and intercellular signal transduction. Concomitantly, it also functions as a ligand in the metabolism of plant hormones and substance transport. In order to understand the GST gene family in upland cotton (Gossypium hirsutum L.), herein we analyzed the species, evolutionary relationship, physical location, gene structure, conserved motifs and expression patterns...
August 20, 2017: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/28887677/evolutionary-and-functional-characterization-of-leucoanthocyanidin-reductases-from-camellia-sinensis
#8
Peiqiang Wang, Lingjie Zhang, Xiaolan Jiang, Xinlong Dai, Lijuan Xu, Tong Li, Dawei Xing, Yanzhi Li, Mingzhuo Li, Liping Gao, Tao Xia
LARs promoted the biosynthesis of catechin monomers and inhibited their polymerization. The accumulation of catechin monomers and polymers was increased by up-regulating the expression of NtLAR and NtANR s in CsMYB5b transgenic tobacco. Tea is rich in polyphenolic compounds, and catechins are the major polyphenols in tea. The biosynthesis of polyphenols is closely related to the expression of the leucoanthocyanidin reductase (LAR) and anthocyanidin reductase (ANR) genes. In this paper, an evolutionary analysis and functional characterization of three CsLARs were performed...
September 8, 2017: Planta
https://www.readbyqxmd.com/read/28885552/structure-of-pigment-metabolic-pathways-and-their-contributions-to-white-tepal-color-formation-of-chinese-narcissus-tazetta-var-chinensis-cv-jinzhanyintai
#9
Yujun Ren, Jingwen Yang, Bingguo Lu, Yaping Jiang, Haiyang Chen, Yuwei Hong, Binghua Wu, Ying Miao
Chinese narcissus (Narcissus tazetta var. chinensis) is one of the ten traditional flowers in China and a famous bulb flower in the world flower market. However, only white color tepals are formed in mature flowers of the cultivated varieties, which constrains their applicable occasions. Unfortunately, for lack of genome information of narcissus species, the explanation of tepal color formation of Chinese narcissus is still not clear. Concerning no genome information, the application of transcriptome profile to dissect biological phenomena in plants was reported to be effective...
September 8, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28868058/melatonin-enhances-phenolics-accumulation-partially-via-ethylene-signaling-and-resulted-in-high-antioxidant-capacity-in-grape-berries
#10
Lili Xu, Qianyu Yue, Feng'e Bian, Hong Sun, Heng Zhai, Yuxin Yao
This study assessed the primary impacts of exogenous melatonin (MT) treatment on grape berry metabolism. Exogenous MT treatment increased the endogenous MT content and modified berry ripening. Transcriptomic analysis revealed that the processes of polyphenol metabolism, carbohydrate metabolism and ethylene biosynthesis and signaling were the three most significantly altered biological processes upon MT treatment. Further experiments verified that MT treatment increased the contents of total anthocyanins, phenols, flavonoids and proanthocyanidins in berries...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28861593/effects-of-elevated-ozone-on-polka-dot-plant-hypoestes-phyllostachya-with-variegated-leaves
#11
J X Sui, M X Wen, L L Jia, Y J Chen, C H Li, L Zhang
In this study, impacts of O3 on four cultivars ('Rose', 'Pink', 'Blush' and 'White') of the polka dot plant with variegated leaves were investigated for the first time. Ozone fumigation [(120 ± 20 ppb) for 14 days (8 h day(-1), from 8:30 to 16:30)] resulted in visible foliar injuries, decreased contents of pigments (chlorophyll a and b, and carotenoid), the inhibition of photosynthesis, the increase of quantum yield of non-regulated heat dissipation and fluorescence emission (Y(NO)), and the damage of cell membrane...
August 31, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28856781/cellular-apoptosis-and-cardiac-dysfunction-in-stz-induced-diabetic-rats-attenuated-by-anthocyanins-via-activation-of-igfi-r-pi3k-akt-survival-signaling
#12
Yin-Tso Liu, Pei-Chen Huang, Guei-Jane Wang, Ming-Jen Fan, Marthandam Asokan Shibu, Vijaya Padma Viswanadha, Yi-Lin Lin, Chao-Hung Lai, Yu-Feng Chen, Hung-En Liao, Chih-Yang Huang
Anthocyanins are known cyto-protective agents against various stress conditions. In this study cardio-protective effect of anthocyanins from black rice against diabetic mellitus (DM) was evaluated using a streptozotocin (STZ)-induced DM rat model. Five-week-old male Wistar rats were administered with STZ (55 mg kg(-1) , IP) to induce DM; rats in the treatment group received 250 mg oral anthocyanin/kg/day during the 4-week treatment period. DM and the control rats received normal saline through oral gavage...
August 30, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28851221/combined-effects-of-early-season-leaf-removal-and-climatic-conditions-on-aroma-precursors-in-sauvignon-blanc-grapes
#13
Paolo Sivilotti, Rachele Falchi, Jose Carlos Herrera, Branka Škvarč, Lorena Butinar, Melita Sternad Lemut, Marijan Bubola, Paolo Sabbatini, Klemen Lisjak, Andreja Vanzo
Early leaf removal around the cluster zone is a common technique applied in cool climate viticulture, to regulate yield components and improve fruit quality. Despite the increasing amount of information on early leaf removal and its impact on total soluble solids, anthocyanins and polyphenols, less is known regarding aroma compounds. In order to verify the hypothesis that defoliation, applied before or after flowering, could impact the biosynthesis of thiol precursors, we performed a two year (2013 and 2014) experiment on Sauvignon blanc...
August 30, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28845529/map-based-cloning-of-the-pear-gene-myb114-identifies-an-interaction-with-other-transcription-factors-to-coordinately-regulate-fruit-anthocyanin-biosynthesis
#14
Gaifang Yao, Meiling Ming, Andrew C Allan, Chao Gu, Leiting Li, Xiao Wu, Runze Wang, Yaojun Chang, Kaijie Qi, Shaoling Zhang, Jun Wu
Red fruits are popular and widely accepted by consumers because of an enhanced appearance and enriched anthocyanins. The molecular mechanism of anthocyanin regulation in red-skinned pears has been studied, and the genes encoding the biosynthetic steps and several transcription factors (TFs) have been characterized. In this study, a candidate R2R3 MYB TF, PyMYB114, was identified by linkage to the quantitative trait loci (QTL) for red skin color on linkage group 5 (LG5) in a population of Chinese pear (Pyrus bretschneideri)...
August 28, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28818381/agfns-overexpression-increase-apigenin-and-decrease-anthocyanins-in-petioles-of-transgenic-celery
#15
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
#16
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
#17
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/28812379/dietary-polyphenols-for-atherosclerosis-a-comprehensive-review-and-future-perspectives
#18
Roodabeh Bahramsoltani, Farnaz Ebrahimi, Mohammad Hosein Farzaei, Armaghan Baratpourmoghaddam, Pardis Ahmadi Borkani, Pourouchista Rostamiasrabadi, Amir Hosein Rasouli Amirabadi, Roja Rahimi
Atherosclerosis is one of the most prevalent reasons for premature death in adults. Despite the several conventional drugs in the market; many patients are not completely treated. Here we comprehensively review current clinical evidence regarding the efficacy of dietary polyphenols in atherosclerosis and related complications. PubMed, Cochrane library and Scopus were searched from inception until August 2016 to obtain clinical trials in which polyphenols were evaluated in cardiovascular parameters related to atherosclerosis...
August 16, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28771720/cyanidin-chloride-inhibits-ovariectomy-induced-osteoporosis-by-suppressing-rankl-mediated-osteoclastogenesis-and-associated-signaling-pathways
#19
Jianwen Cheng, Lin Zhou, Qian Liu, Jennifer Tickner, Zhen Tan, Xiaofeng Li, Mei Liu, Xixi Lin, Tao Wang, Nathan J Pavlos, Jinmin Zhao, Jiake Xu
Over-production and activation of osteoclasts is a common feature of osteolytic conditions such as osteoporosis, tumor-associated osteolysis, and inflammatory bone erosion. Cyanidin Chloride, a subclass of anthocyanin, displays antioxidant and anti-carcinogenesis properties, but its role in osteoclastic bone resorption and osteoporosis is not well understood. In this study, we showed that Cyanidin Chloride inhibits osteoclast formation, hydroxyapatite resorption, and receptor activator of NF-κB ligand (RANKL)-induced osteoclast marker gene expression; including ctr, ctsk, and trap...
August 3, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28769969/functional-characterization-of-a-novel-r2r3-myb-transcription-factor-modulating-the-flavonoid-biosynthetic-pathway-from-epimedium-sagittatum
#20
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
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