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Anthocyanin

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https://www.readbyqxmd.com/read/28448624/overexpression-of-the-protein-phosphatase-2a-regulatory-subunit-a-gene-zmpp2aa1-improves-low-phosphate-tolerance-by-remodeling-the-root-system-architecture-of-maize
#1
Jiemin Wang, Laming Pei, Zhe Jin, Kewei Zhang, Juren Zhang
Phosphate (Pi) limitation is a constraint for plant growth and development in many natural and agricultural ecosystems. In this study, a gene encoding Zea mays L. protein phosphatase 2A regulatory subunit A, designated ZmPP2AA1, was induced in roots by low Pi availability. The function of the ZmPP2AA1 gene in maize was analyzed using overexpression and RNA interference. ZmPP2AA1 modulated root gravitropism, negatively regulated primary root (PR) growth, and stimulated the development of lateral roots (LRs)...
2017: PloS One
https://www.readbyqxmd.com/read/28448452/a-wireless-sensor-network-for-growth-environment-measurement-and-multi-band-optical-sensing-to-diagnose-tree-vigor
#2
Shinichi Kameoka, Shuhei Isoda, Atsushi Hashimoto, Ryoei Ito, Satoru Miyamoto, Genki Wada, Naoki Watanabe, Takashi Yamakami, Ken Suzuki, Takaharu Kameoka
We have tried to develop the guidance system for farmers to cultivate using various phenological indices. As the sensing part of this system, we deployed a new Wireless Sensor Network (WSN). This system uses the 920 MHz radio wave based on the Wireless Smart Utility Network that enables long-range wireless communication. In addition, the data acquired by the WSN were standardized for the advanced web service interoperability. By using these standardized data, we can create a web service that offers various kinds of phenological indices as secondary information to the farmers in the field...
April 27, 2017: Sensors
https://www.readbyqxmd.com/read/28446955/combination-of-cyclamen-persicum-mill-floral-gene-promoters-and-chimeric-repressors-for-the-modification-of-ornamental-traits-in-torenia-fournieri-lind
#3
Ichiro Kasajima, Norihiro Ohtsubo, Katsutomo Sasaki
Although chimeric repressors such as the Arabidopsis TCP3 repressor are known to have significant effects on flower morphology and color, their cellular-level effects on flower petals are not understood. The promoter sequences of the genes expressed in the flowers of cyclamen, a representative potted flower grown during the winter season, are also unknown. Here, we isolated eight promoters from cyclamen genes that are reportedly expressed in the petals. These promoters were then fused to four chimeric repressors and introduced into the model flower torenia to screen for effective combinations of promoters and repressors for flower breeding...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28446022/a-survey-of-anthocyanin-composition-and-concentration-in-diverse-maize-germplasm
#4
Michael Paulsmeyer, Laura Chatham, Talon Becker, Megan West, Leslie West, John Juvik
Increasing consumer demand for natural ingredients in foods and beverages justifies investigations into more economic sources of natural colorants. In this study, 398 genetically diverse pigmented accessions of maize were analyzed using HPLC to characterize the diversity of anthocyanin composition and concentration in maize germplasm. 167 accessions were identified that could produce anthocyanins in the kernel pericarp or aleurone and were classified into compositional categories. Total anthocyanin content was highest in pericarp-pigmented accessions with flavanol-anthocyanin condensed forms, similar to the Andean Maíz Morado landraces...
April 26, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28445445/cardioprotective-effects-of-malvidin-against-isoproterenol-induced-myocardial-infarction-in-rats-a-mechanistic-study
#5
Hui Wei, Hui Li, Shu-Ping Wan, Qiu-Tang Zeng, Long-Xian Cheng, Li-Li Jiang, Yu-Dong Peng
BACKGROUND Malvidin (alvidin-3-glucoside) is a polyphenol that belongs to the class of natural anthocyanin, which is abundantly found in red wines, colored fruits, and the skin of red grapes. Therefore, the current investigation was intended to evaluate the effect of malvidin against myocardial infarction induced by isoproterenol in the rats. MATERIAL AND METHODS The cardioprotective effects was assessed by determining the effect of malvidin on the activities of endogenous antioxidants - catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GSH) - and on the levels of lipid peroxidation and serum marker enzymes...
April 26, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28445423/anthocyanin-profiles-in-flowers-of-grape-hyacinth
#6
Qian Lou, Lin Wang, Hongli Liu, Yali Liu
Grape hyacinth (Muscari spp.) is a popular ornamental bulbous perennial famous for its blue flowers. To understand the chemical basis of the rich blue colors in this plant, anthocyanin profiles of six blue flowering grape hyacinths as well as one pink and one white cultivar were determined using high-performance liquid chromatography and mass spectrometry. Along with two known compounds, eight putative anthocyanins were identified in the tepals of grape hyacinth for the first time. The accumulation and distribution of anthocyanins in the plant showed significant cultivar and flower development specificity...
April 26, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28444808/fast-and-simple-discriminative-analysis-of-anthocyanins-containing-berries-using-lc-ms-spectral-data
#7
Heejung Yang, Hyun Woo Kim, Yong Soo Kwon, Ho Kyong Kim, Sang Hyun Sung
INTRODUCTION: Anthocyanins are potent antioxidant agents that protect against many degenerative diseases; however, they are unstable because they are vulnerable to external stimuli including temperature, pH and light. This vulnerability hinders the quality control of anthocyanin-containing berries using classical high-performance liquid chromatography (HPLC) analytical methodologies based on UV or MS chromatograms. OBJECTIVE: To develop an alternative approach for the quality assessment and discrimination of anthocyanin-containing berries, we used MS spectral data acquired in a short analytical time rather than UV or MS chromatograms...
April 25, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28444442/high-accumulation-of-anthocyanins-via-the-ectopic-expression-of-atdfr-confers-significant-salt-stress-tolerance-in-brassica-napus-l
#8
Jihye Kim, Won Je Lee, Tien Thanh Vu, Chan Young Jeong, Suk-Whan Hong, Hojoung Lee
The ectopic expression of AtDFR results in increased accumulation of anthocyanins leading to enhanced salinity and drought stress tolerance in B. napus plants. Flavonoids with antioxidant effects confer many additional benefits to plants. Evidence indicates that flavonoids, including anthocyanins, protect tissues against oxidative stress from various abiotic stressors. We determined whether increases in anthocyanins increased abiotic stress tolerance in Brassica napus, because the values of B. napus L. and its cultivation area are increasing worldwide...
April 25, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28441475/2-2-spirobis-chromene-derivatives-chemistry-and-their-relation-with-the-multistate-system-of-anthocyanins
#9
Artur J Moro, A Jorge Parola, Fernando Pina, Ana-Maria Pana, Valentin Badea, Iulia Pausescu, Sergiu Shova, Liliana Cseh
The chemistry of 2,2'-spirobis[chromene] derivatives is intimately related to the one of anthocyanins and similar compounds. The 2,2'-spirobis[chromene] species plays a central role in the network of chemical reactions connecting two different flavylium-based multistate systems. In the present work, a new asymmetric 2,2'-spirobis[chromene] intermediate possessing a constrained propylenic bridge between carbons 3 and 3' was isolated and its role as a pivot in the anthocyanins-type multistate of chemical reactions was investigated by the conjugation of absorption spectroscopy, stopped-flow, NMR and X-Ray crystallography...
April 25, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28440563/the-sumo-e3-ligase-mdsiz1-promotes-anthocyanin-accumulation-by-sumoylating-mdmyb1-under-low-temperature-conditions-in-apple
#10
Li-Jie Zhou, Yuan-Yuan Li, Rui-Fen Zhang, Chun-Ling Zhang, Xing-Bin Xie, Cheng Zhao, Yu-Jin Hao
MdMYB1 acts as a crucial component of the MYB-bHLH-WD40 (MBW) complex to regulate anthocyanin biosynthesis in red-skinned apples (Malus domestica), but little is known about its posttranslational regulation. Here, a SUMO E3 ligase MdSIZ1 was screened out as an MdMYB1-interacting protein with a yeast two-hybridization approach. The interaction between MdSIZ1 and MdMYB1 was further verified with pull-down and CoIP assays. Furthermore, it was found that MdSIZ1 directly sumoylated MdMYB1 proteins in vivo and in vitro, especially under moderately low temperature (17 °C) conditions, and that this sumoylation was required for MdMYB1 protein stability...
April 25, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28436321/screening-of-bioactive-compounds-of-medicinal-mushrooms-collected-on-tunisian-territory
#11
Ayda Khadhri, Chedia Aouadhi, Samira Aschi-Smiti
This study is, to our knowledge, the first to investigate the pharmacological importance of wild Tunisian mushrooms. Ethanolic extracts of 5 Tunisian mushrooms-Phellinus torulosus, Fomes fomentarius, Trametes versicolor, Pisolithus albus, and Fomitopsis pinicola-were collected from the Kroumirie Region (North Tunisia). The dry basidomes of mushrooms were extracted using ethanol and evaluated for total polyphenol, flavonoid, flavonol, tannin, proanthocyanidin, and anthocyanin content. In addition, their antioxidant activities were determined using 3 assays (testing 2,2-diphenyl-1-picrylhydrazyl [DPPH] radical scavenging, the reducing power of iron, and the iron-chelating power)...
2017: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/28435067/the-mitogen-activated-protein-kinase-kinase-9-mkk9-modulates-nitrogen-acquisition-and-anthocyanin-accumulation-under-nitrogen-limiting-condition-in-arabidopsis
#12
Juan Luo, Xu Wang, Lei Feng, Yan Li, Jun-Xian He
Nitrogen (N) plays important roles as both a macronutrient and signal in plant growth and development. However, our understanding of N signaling and/or response mechanisms in plants is still limited. Here, we show that the mitogen-activated protein kinase kinase 9 (MKK9) is involved in plant N responses in Arabidopsis by regulating production of anthocyanins and the ability of N acquisition under low N conditions. Transgenic plants that express a constitutively active version of MKK9 (MKK9(DD)) showed decreased accumulation of anthocynanins and reduced expression of key anthocyanin biosynthetic genes under low N condition compared to the plants expressing the inactive form of MKK9 (MKK9(KR))...
April 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28431014/the-draft-genome-of-ruellia-speciosa-beautiful-wild-petunia-acanthaceae
#13
Yongbin Zhuang, Erin A Tripp
The genus Ruellia (Wild Petunias; Acanthaceae) is characterized by an enormous diversity of floral shapes and colours manifested among closely related species. Using Illumina platform, we reconstructed the draft genome of Ruellia speciosa, with a scaffold size of 1,021 Mb (or ∼1.02 Gb) and an N50 size of 17,908 bp, spanning ∼93% of the estimated genome (∼1.1 Gb). The draft assembly predicted 40,124 gene models and phylogenetic analyses of four key enzymes involved in anthocyanin colour production [flavanone 3-hydroxylase (F3H), flavonoid 3'-hydroxylase (F3'H), flavonoid 3',5'-hydroxylase (F3'5'H), and dihydroflavonol 4-reductase (DFR)] found that most angiosperms here sampled harboured at least one copy of F3H, F3'H, and DFR...
April 1, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28430395/flower-colour-polymorphism%C3%A2-in-the-mediterranean-basin-occurrence-maintenance-and-implications-for-speciation
#14
REVIEW
E Narbona, H Wang, P L Ortiz, M Arista, E Imbert
Flower colour polymorphism (FCP) is the occurrence of at least two discrete flower colour variants in the same population. Despite a vast body of research concerning the maintenance and evolutionary consequences of FCP, only recently has the spatial variation in morph frequencies among populations been explored. Here we have summarized the biochemical and genetic basis of FCP, the factors that have been proposed to explain their maintenance, and the importance of FCP and its geographic variation in the speciation process...
April 21, 2017: Plant Biology
https://www.readbyqxmd.com/read/28428793/transcriptomics-targeted-metabolomics-and-gene-expression-of-blackberry-leaves-and-fruits-indicate-flavonoid-metabolic-flux-from-leaf-to-red-fruit
#15
Enrique Gutierrez, Ana García-Villaraco, José A Lucas, Ana Gradillas, F Javier Gutierrez-Mañero, Beatriz Ramos-Solano
Blackberries (Rubus spp.) are among the high added value food products relevant for human health due to the increasing evidence of the beneficial effects of polyphenols, which are very abundant in these fruits. Interestingly, these compounds also play a role on plant physiology, being especially relevant their role in plant defense against biotic and abiotic stress. Hence, we hypothesize that since blackberry fruits have high amounts of flavonols and anthocyanins, leaves would also have high amounts of these compounds, and can be studied as a source of active molecules; furthermore, leaf synthesis would support their high contents in fruits...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28428782/a-recombinant-potato-virus-y-infectious-clone-tagged-with-the-rosea1-visual-marker-pvy-ros1-facilitates-the-analysis-of-viral-infectivity-and-allows-the-production-of-large-amounts-of-anthocyanins-in-plants
#16
Teresa Cordero, Mohamed A Mohamed, Juan-José López-Moya, José-Antonio Daròs
Potato virus Y (PVY) is a major threat to the cultivation of potato and other solanaceous plants. By inserting a cDNA coding for the Antirrhinum majus Rosea1 transcription factor into a PVY infectious clone, we created a biotechnological tool (PVY-Ros1) that allows infection by this relevant plant virus to be tracked by the naked eye with no need for complex instrumentation. Rosea1 is an MYB-type transcription factor whose expression activates the biosynthesis of anthocyanin pigments in a dose-specific and cell-autonomous manner...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28428026/dietary-cyanidin-3-glucoside-from-purple-corn-ameliorates-doxorubicin-induced-cardiotoxicity-in-mice
#17
K Petroni, M Trinei, M Fornari, V Calvenzani, A Marinelli, L A Micheli, R Pilu, A Matros, H-P Mock, C Tonelli, M Giorgio
BACKGROUND AND AIMS: Anthracyclines are effective anticancer drugs that have improved prognosis of hundred thousand cancer patients worldwide and are currently the most common chemotherapeutic agents used for the treatment of blood, breast, ovarian and lung cancers. However, their use is limited because of a cumulative dose-dependent and irreversible cardiotoxicity that can cause progressive cardiomyopathy and congestive heart failure. Aim of the present study was to determine the cardioprotective activity of a dietary source of cyanidin 3-glucoside (C3G), such as purple corn, against doxorubicin (DOX)-induced cardiotoxicity in mice...
February 21, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28427631/combined-effect-of-ultrasound-heat-and-pressure-on-escherichia-coli-o157-h7-polyphenol-oxidase-activity-and-anthocyanins-in-blueberry-vaccinium-corymbosum-juice
#18
Jinyan Zhu, Yuehua Wang, Xinghe Li, Bin Li, Suwen Liu, Nan Chang, Ding Jie, Chong Ning, Haiyan Gao, Xianjun Meng
The objective of this study was to evaluate the effect of different treatments-heat treatment (HT), sonication (SC), thermosonication (TS), manosonication (MS), manothermal (MT), and manothermosonication (MTS) on Escherichia coli O157:H7, polyphenol oxidase (PPO), and anthocyanin content in blueberry juice. First, samples were treated at different temperatures (30, 40, 50, 60, 70, and 80°C) and power intensities (280, 420, 560, and 700W) for 10min. Subsequently, samples were treated using combinations of power intensity and mild temperature for 10min...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28426978/visualizing-spatial-distribution-of-small-molecules-in-the-rhubarb-stalk-rheum-rhabarbarum-by-surface-transfer-mass-spectrometry-imaging
#19
Joanna Nizioł, Justyna Sekuła, Tomasz Ruman
Laser desorption/ionization mass spectrometry imaging (LDI-MSI) with gold nanoparticle-enhanced target (AuNPET) was used for visualization of small molecules in the rhubarb stalk (Rheum rhabarbarum L.). Analysis was focused on spatial distribution of biologically active compounds which are found in rhubarb species. Detected compounds belong to a very wide range of chemical compound classes such as anthraquinone derivatives and their glucosides, stilbenes, anthocyanins, flavonoids, polyphenols, organic acids, chromenes, chromanones, chromone glycosides and vitamins...
April 17, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28425868/pomegranate-as-a-possible-treatment-in-reducing-risk-of-developing-wound-healing-obesity-neurodegenerative-disorders-and-diabetes-mellitus
#20
Manaf AlMatar, Md Rashedul Islam, Othman Albari, Işıl Var, Fatih Köksal
Four distinguished although overlying stages make up the methodical procedure of wound healing, which are hemostasis, inflammation, proliferation and remodelling. Multiple sclerosis (MS) comprises a persistent inflammatory infection of the central nervous system, and is related to demyelination, neurodegeneration, as well as susceptibility to oxidative pressure. Obesity signifies a swiftly developing danger to the wellbeing of populations in a rising number of nations. Usually called diabetes mellitus (DM) by medical practitioners, diabetes details a collection of metabolic diseases within which the individual has raised blood glucose, either due to an insufficiency of insulin generation, or the lack of suitable response by the body to insulin, or both...
April 19, 2017: Mini Reviews in Medicinal Chemistry
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