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Anthocyanin, transcription

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https://www.readbyqxmd.com/read/28216591/iron-supply-affects-anthocyanin-content-and-related-gene-expression-in-berries-of-vitis-vinifera-cv-cabernet-sauvignon
#1
Pengbao Shi, Bing Li, Haiju Chen, Changzheng Song, Jiangfei Meng, Zhumei Xi, Zhenwen Zhang
Anthocyanins are important compounds for red grape and red wine quality, and can be influenced by supply of nutrients such as nitrogen, phosphorus, potassium, zinc, and iron. The present work aims to gain a better understanding of the effect of iron supply on anthocyanins concentration in grape berries. To this end, own-rooted four-year-old Cabernet Sauvignon grapevines (Vitis vinifera) were fertigated every three days with 0, 23, 46, 92, and 184 μM iron (Fe) from ferric ethylenediamine di (o-hydroxyphenylacetic) acid (Fe-EDDHA) in a complete nutrient solution...
February 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28216162/genome-wide-identification-of-glabra3-downstream-genes-for-anthocyanin-biosynthesis-and-trichome-formation-in-arabidopsis
#2
Chenhao Gao, Dong Li, Changyu Jin, Shaowei Duan, Shuanghui Qi, Kaige Liu, Hanchen Wang, Haoli Ma, Jiangbo Hai, Mingxun Chen
GLABRA3 (GL3), a bHLH transcription factor, has previously proved to be involved in anthocyanin biosynthesis and trichome formation in Arabidopsis, however, its downstream targeted genes are still largely unknown. Here, we found that GL3 was widely present in Arabidopsis vegetative and reproductive organs. New downstream targeted genes of GL3 for anthocyanin biosynthesis and trichome formation were identified in young shoots and expanding true leaves by RNA sequencing. GL3-mediated gene expression was tissue specific in the two biological processes...
February 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28207822/identification-classification-and-transcription-profiles-of-the-b-type-response-regulator-family-in-pear
#3
Junbei Ni, Songling Bai, Ling Gao, Minjie Qian, Linbing Zhong, Yuanwen Teng
Type-B response regulators (B-RRs) are transcription factors that function in the final step of two-component signaling systems. In model plants, B-RRs have been shown to play important roles in cytokinin signal transduction. However, the functions of B-RRs in pear have not been well studied. In this report, we conducted a genome-wide analysis and identified 11 putative genes encoding B-PpRR proteins based on the published genome sequence of Pyrus bretschneideri. A phylogenetic tree of the B-PpRR family was constructed, and the motif distribution, chromosome localization, and gene structure of B-PpRR family genes were determined...
2017: PloS One
https://www.readbyqxmd.com/read/28197155/dissecting-the-biochemical-and-transcriptomic-effects-of-a-locally-applied-heat-treatment-on-developing-cabernet-sauvignon-grape-berries
#4
Fatma Lecourieux, Christian Kappel, Philippe Pieri, Justine Charon, Jérémy Pillet, Ghislaine Hilbert, Christel Renaud, Eric Gomès, Serge Delrot, David Lecourieux
Reproductive development of grapevine and berry composition are both strongly influenced by temperature. To date, the molecular mechanisms involved in grapevine berries response to high temperatures are poorly understood. Unlike recent data that addressed the effects on berry development of elevated temperatures applied at the whole plant level, the present work particularly focuses on the fruit responses triggered by direct exposure to heat treatment (HT). In the context of climate change, this work focusing on temperature effect at the microclimate level is of particular interest as it can help to better understand the consequences of leaf removal (a common viticultural practice) on berry development...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28196843/changes-in-anthocyanin-production-during-domestication-of-citrus
#5
Eugenio Butelli, Andrés Garcia-Lor, Concetta Licciardello, Giuseppina Las Casas, Lionel Hill, Giuseppe Reforgiato Recupero, Manjunath Keremane, Chandrika Ramadugu, Robert Krueger, Qiang Xu, Xiuxin Deng, Anne-Laure Fanciullino, Yann Froelicher, Luis Navarro, Cathie Martin
Mandarin (C. reticulata), citron (C. medica) and pummelo (C. maxima) are important species of the genus Citrus and parents of the interspecific hybrids that constitute the most familiar commercial varieties of citrus: sweet orange, sour orange, clementine, lemon, lime and grapefruit. Citron produces anthocyanins in its young leaves and flowers, as do species in genera closely related to Citrus, but mandarins do not and pummelo varieties that produce anthocyanins have not been reported. We investigated the activity of the Ruby gene, which encodes a MYB transcription factor controlling anthocyanin biosynthesis, in different accessions of a range of Citrus species and in domesticated cultivars...
February 14, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28171801/variable-responses-of-two-vlmyba-gene-promoters-to-aba-and-acc-in-kyoho-grape-berries
#6
Xiawan Zhai, Yushu Zhang, Wenbin Kai, Bin Liang, Li Jiang, Yangwei Du, Juan Wang, Yufei Sun, Ping Leng
The VlMYBA subfamily of transcription factors has been known to be the functional regulators in anthocyanin biosynthesis in red grapes. In this study, the expressions of the VlMYBA1-2 and VlMYBA 2 genes, and the responses of the VlMYBA1-2/2 promoters to ABA and ACC treatments in Kyoho grape berries are examined through quantitative real-time PCR analysis and the transient expression assay. The results show that the expressions of VlMYBA1-2/2 increase dramatically after véraison and reach their highest levels when the berries are nearly fully ripe...
January 19, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28167273/mybs-affect-the-variation-in-the-ratio-of-anthocyanin-and-flavanol-in-fruit-peel-and-flesh-in-response-to-shade
#7
Yanfen Lu, Yufen Bu, Suxiao Hao, Yaru Wang, Jie Zhang, Ji Tian, Yuncong Yao
Fruit pigment accumulation, which represents an important indicator of nutrient quality and appearance value, is often affected by low light under rain, cloud, fog and haze conditions during the veraison period. It is not known whether continuous low light interferes with the production and accumulation of secondary metabolites in veraison fruit. In this paper, we measured pigments and the transcriptional level of genes related to secondary metabolites, i.e., flavonoid biosynthesis in the peel and flesh of Malus crabapple 'Radiant' fruit in response to normal light and shade from 10th July to 30th August...
January 31, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28166404/vcbbx-vcmyb21-and-vcr2r3myb-transcription-factors-are-involved-in-uv-b-induced-anthocyanin-biosynthesis-in-the-peel-of-harvested-blueberry-fruit
#8
Chau T T Nguyen, Sooyeon Lim, Jeong Gu Lee, Eun Jin Lee
This study was carried out to better understand the mechanism responsible for increasing the anthocyanins in blueberries after UV-B radiation at 6.0 kJ m(-2) for 20 min. UV-B induced upregulation of genes involved in anthocyanin biosynthesis in blueberry fruit compared to a nontreated control. Phenylalanine ammonia lyase, chalcone synthase, and flavanone 3'-hydroxylase, which are enzymes that function upstream of anthocyanin biosynthesis, were significantly expressed by UV-B. Expression levels of VcBBX, VcMYB21, and VcR2R3MYB transcription factors (TFs) were upregulated by UV-B in the same manner as the anthocyanin biosynthesis genes...
February 16, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28131342/lea-gene-expression-rna-stability-and-pigment-accumulation-in-three-closely-related-linderniaceae-species-differing-in-desiccation-tolerance
#9
Ilona Juszczak, Dorothea Bartels
Desiccation-tolerant plants (Craterostigma plantagineum and Lindernia brevidens) evolved a highly efficient strategies to prevent dehydration-induced irreversible damage. The protection system involves synthesis of LEA proteins, decrease of photosynthetic activity and activation of antioxidant systems. The regulation of these processes requires joint action of multiple proteins. Here, we present comparative analyses of accumulation of transcripts encoding components of the protection machinery, such as selected LEA proteins, enzymes of the chlorophyll degradation pathway and anthocyanin biosynthesis enzymes in total and polysomal RNA pools...
February 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28131062/anthocyanin-biosynthesis-regulation-of-dhmyb2-and-dhbhlh1-in-dendrobium-hybrids-petals
#10
Chonghui Li, Jian Qiu, Ling Ding, Mingzhong Huang, Surong Huang, Guangsui Yang, Junmei Yin
Dendrobium hybrids orchid are popular throughout the world. They have various floral color and pigmentation patterns that are mainly caused by anthocyanins. It is well established that anthocyanin biosynthesis is regulated by the interplay between MYB and bHLH transcription factors (TF) in most plants. In this study, we identified one R2R3-MYB gene, DhMYB2, and one bHLH gene, DhbHLH1, from a Dendrobium hybrid. Their expression profiles were related to anthocyanin pigmentation in Dendrobium petals. Transient over-expression of these two TF genes showed that both DhMYB2 and DhbHLH1 resulted in anthocyanin production in white petals...
March 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28115495/a-r2r3-myb-gene-lfmyb113-is-responsible-for-autumn-leaf-coloration-in-formosan-sweet-gum-liquidambar-formosana-hance
#11
Chi-Hsiang Wen, Fang-Hua Chu
The regulation of autumn leaf coloration in deciduous trees has long been an enigma. Due to the fact that different coloration phenotypes may be considered when planting, more understanding of the regulation mechanism is needed. In this study, a R2R3-MYB transcription factor gene LfMYB113 was identified from a subtropical deciduous tree species Formosan sweet gum (Liquidambar formosana Hance). The expression patterns of LfMYB113 in four selected phenotypes were different and were positively correlated with leaf anthocyanin content...
January 23, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28102581/molecular-mechanisms-and-ecological-function-of-far-red-light-signalling
#12
REVIEW
David J Sheerin, Andreas Hiltbrunner
Land plants possess the ability to sense and respond to far-red light (700-760 nm), which serves as an important environmental cue. Due to the nature of far-red light, it is not absorbed by chlorophyll and thus is enriched in canopy shade, and will also penetrate deeper into soil than other visible wavelengths. Far-red light responses include regulation of seed germination, suppression of hypocotyl growth, induction of flowering, and accumulation of anthocyanins, which depend on one member of the phytochrome photoreceptor family, phytochrome A (phyA)...
January 19, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28095853/crispri-mediated-metabolic-engineering-of-e-coli-for-o-methylated-anthocyanin-production
#13
Brady F Cress, Quentin D Leitz, Daniel C Kim, Teresita D Amore, Jon Y Suzuki, Robert J Linhardt, Mattheos A G Koffas
BACKGROUND: Anthocyanins are a class of brightly colored, glycosylated flavonoid pigments that imbue their flower and fruit host tissues with hues of predominantly red, orange, purple, and blue. Although all anthocyanins exhibit pH-responsive photochemical changes, distinct structural decorations on the core anthocyanin skeleton also cause dramatic color shifts, in addition to improved stabilities and unique pharmacological properties. In this work, we report for the first time the extension of the reconstituted plant anthocyanin pathway from (+)-catechin to O-methylated anthocyanins in a microbial production system, an effort which requires simultaneous co-option of the endogenous metabolites UDP-glucose and S-adenosyl-L-methionine (SAM or AdoMet)...
January 17, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28095782/genome-scale-transcriptional-study-of-hybrid-effects-and-regulatory-divergence-in-an-f1-hybrid-ruellia-wild-petunias-acanthaceae-and-its-parents
#14
Yongbin Zhuang, Erin A Tripp
BACKGROUND: New combinations of divergent genomes can give rise to novel genetic functions in resulting hybrid progeny. Such functions may yield opportunities for ecological divergence, contributing ultimately to reproductive isolation and evolutionary longevity of nascent hybrid lineages. In plants, the degree to which transgressive genotypes contribute to floral novelty remains a question of key interest. Here, we generated an F1 hybrid plant between the red-flowered Ruellia elegans and yellow flowered R...
January 17, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28086798/genome-wide-association-analysis-of-seedling-traits-in-diverse-sorghum-germplasm-under-thermal-stress
#15
Ratan Chopra, Gloria Burow, John J Burke, Nicholas Gladman, Zhanguo Xin
BACKGROUND: Climate variability due to fluctuation in temperature is a worldwide concern that imperils crop production. The need to understand how the germplasm variation in major crops can be utilized to aid in discovering and developing breeding lines that can withstand and adapt to temperature fluctuations is more necessary than ever. Here, we analyzed the genetic variation associated with responses to thermal stresses in a sorghum association panel (SAP) representing major races and working groups to identify single nucleotide polymorphisms (SNPs) that are associated with resilience to temperature stress in a major cereal crop...
January 13, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28081181/aronia-melanocarpa-extract-ameliorates-hepatic-lipid-metabolism-through-ppar%C3%AE-2-downregulation
#16
Chung-Hwa Park, Jung-Hee Kim, Eun Byul Lee, Wonhee Hur, Oh-Joo Kwon, Hyoung-Jin Park, Seung Kew Yoon
Nonalcoholic fatty liver disease (NAFLD) is a hepatic manifestation of metabolic syndrome. Studies have demonstrated that anthocyanin-rich foods may improve hyperlipidemia and ameliorate hepatic steatosis. Here, effects of Aronia melanocarpa (AM), known to be rich of anthocyanins, on hepatic lipid metabolism and adipogenic genes were determined. AM was treated to C57BL/6N mice fed with high fat diet (HFD) or to FL83B cells treated with free fatty acid (FFA). Changes in levels of lipids, enzymes and hormones were observed, and expressions of adipogenic genes involved in hepatic lipid metabolism were detected by PCR, Western blotting and luciferase assay...
2017: PloS One
https://www.readbyqxmd.com/read/28053648/harnessing-anthocyanin-rich-fruit-a-visible-reporter-for-tracing-virus-induced-gene-silencing-in-pepper-fruit
#17
Jihyun Kim, Minkyu Park, Eun Soo Jeong, Je Min Lee, Doil Choi
BACKGROUND: Virus-induced gene silencing (VIGS) has become a powerful tool for post-genomic technology in plant species. This is important, especially in select plants, such as the pepper plant, that are recalcitrant to Agrobacterium-mediated transformation. Although VIGS in plants has been widely employed as a powerful tool for functional genomics, scattering phenotypic effects by uneven gene silencing has been implemented in order to overcome challenges in experiments with fruit tissues...
2017: Plant Methods
https://www.readbyqxmd.com/read/28051907/novel-r2r3-myb-transcription-factors-from-prunus-americana-regulate-differential-patterns-of-anthocyanin-accumulation-in-tobacco-and-citrus
#18
Kasturi Dasgupta, Roger Thilmony, Ed Stover, Maria Luiza Oliveira, James Thomson
The level of anthocyanins in plants vary widely among cultivars, developmental stages and environmental stimuli. Previous studies have reported that the expression of various MYBs regulate anthocyanin pigmentation during growth and development. Here we examine the activity of three novel R2R3-MYB transcription factor (TF) genes, PamMybA.1, PamMybA.3 and PamMybA.5 from Prunus americana. The anthocyanin accumulation patterns mediated by CaMV double35S promoter (db35Sp) controlled expression of the TFs in transgenic tobacco were compared to citrus-MoroMybA, Arabidopsis-AtMybA1 and grapevine-VvMybA1 transgenics during their entire growth cycles...
January 4, 2017: GM Crops & Food
https://www.readbyqxmd.com/read/28025485/overexpression-of-amrosea1-gene-confers-drought-and-salt-tolerance-in-rice
#19
Mingzhu Dou, Sanhong Fan, Suxin Yang, Rongfeng Huang, Huiyun Yu, Xianzhong Feng
Ectopic expression of the MYB transcription factor of AmROSEA1 from Antirrhinum majus has been reported to change anthocyanin and other metabolites in several species. In this study, we found that overexpression of AmRosea1 significantly improved the tolerance of transgenic rice to drought and salinity stresses. Transcriptome analysis revealed that a considerable number of stress-related genes were affected by exogenous AmRosea1 during both drought and salinity stress treatments. These affected genes are involved in stress signal transduction, the hormone signal pathway, ion homeostasis and the enzymes that remove peroxides...
December 22, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28018399/the-onion-allium-cepa-l-r2r3-myb-gene-myb1-regulates-anthocyanin-biosynthesis
#20
Kathy E Schwinn, Hanh Ngo, Fernand Kenel, David A Brummell, Nick W Albert, John A McCallum, Meeghan Pither-Joyce, Ross N Crowhurst, Colin Eady, Kevin M Davies
Bulb color is an important consumer trait for onion (Allium cepa L., Allioideae, Asparagales). The bulbs accumulate a range of flavonoid compounds, including anthocyanins (red), flavonols (pale yellow), and chalcones (bright yellow). Flavonoid regulation is poorly characterized in onion and in other plants belonging to the Asparagales, despite being a major plant order containing many important crop and ornamental species. R2R3-MYB transcription factors associated with the regulation of distinct branches of the flavonoid pathway were isolated from onion...
2016: Frontiers in Plant Science
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