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https://www.readbyqxmd.com/read/28101896/adaptation-of-genetically-monomorphic-bacteria-evolution-of-copper-resistance-through-multiple-horizontal-gene-transfers-of-complex-and-versatile-mobile-genetic-elements
#1
D Richard, V Ravigné, A Rieux, B Facon, C Boyer, K Boyer, P Grygiel, S Javegny, M Terville, B I Canteros, I Robène, C Vernière, A Chabirand, O Pruvost, P Lefeuvre
Copper-based antimicrobial compounds are widely used to control plant bacterial pathogens. Pathogens have adapted in response to this selective pressure. Xanthomonas citri pv. citri, a major citrus pathogen causing Asiatic citrus canker, was first reported to carry plasmid-encoded copper resistance in Argentina. This phenotype was conferred by the copLAB gene system. The emergence of resistant strains has since been reported in Réunion and Martinique. Using microsatellite-based genotyping and copLAB PCR, we demonstrated that the genetic structure of the copper-resistant strains from these three regions was made up of two distant clusters and varied for the detection of copLAB amplicons...
January 19, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28101238/diosmetin-triggers-cell-apoptosis-by-activation-of-the-p53-bcl-2-pathway-and-inactivation-of-the-notch3-nf-%C3%AE%C2%BAb-pathway-in-hepg2-cells
#2
Jie Qiao, Jie Liu, Kaiqiao Jia, Ning Li, Bin Liu, Qingyu Zhang, Runzhi Zhu
Diosmetin (DIOS), a flavonoid compound, is abundant in Citrus limon. Emerging studies have shown that DIOS is an effective compound implicated in multiple types of cancer. However, whether DIOS serves a role in hepatocellular carcinoma (HCC) is still obscure. HepG2 cells were used in the present study, and it was observed that DIOS exhibited antitumor activity against liver cancer cells. Western blotting was performed to evaluate cell apoptosis and survival-associated proteins, and the results demonstrated that DIOS treatment resulted in the activation of the p53-dependent apoptosis pathway...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28098797/nonlinear-fusion-of-multispectral-citrus-fruit-image-data-with-information-contents
#3
Peilin Li, Sang-Heon Lee, Hung-Yao Hsu, Jae-Sam Park
The main issue of vison-based automatic harvesting manipulators is the difficulty in the correct fruit identification in the images under natural lighting conditions. Mostly, the solution has been based on a linear combination of color components in the multispectral images. However, the results have not reached a satisfactory level. To overcome this issue, this paper proposes a robust nonlinear fusion method to augment the original color image with the synchronized near infrared image. The two images are fused with Daubechies wavelet transform (DWT) in a multiscale decomposition approach...
January 13, 2017: Sensors
https://www.readbyqxmd.com/read/28096758/effects-of-acute-ingestion-of-a-pre-workout-dietary-supplement-with-and-without-p-synephrine-on-resting-energy-expenditure-cognitive-function-and-exercise-performance
#4
Y Peter Jung, Conrad P Earnest, Majid Koozehchian, Elfego Galvan, Ryan Dalton, Dillon Walker, Christopher Rasmussen, Peter S Murano, Mike Greenwood, Richard B Kreider
BACKGROUND: The purpose of this study was to examine the effects of acute ingestion of a pre-workout dietary supplement (PWS) with and without p-synephrine (S) on perceptions of readiness to perform, cognitive function, exercise performance, and markers of safety. METHODS: In a randomized, double-blind, and counterbalanced manner; 25 healthy and recreationally active male and female participants ingested a flavored maltodextrin placebo (PLA), a PWS containing beta-alanine (3 g), creatine nitrate as a salt (2 g), arginine alpha-ketoglutarate (2 g), N-Acetyl-L-Tyrosine (300 mg), caffeine (284 mg), Mucuna pruiriens extract standardized for 15% L-Dopa (15 mg), Vitamin C as Ascorbic Acid (500 mg), niacin (60 mg), folate as folic acid (50 mg), and Vitamin B12 as Methylcobalamin (70 mg) with 2 g of maltodextrin and flavoring; or, the PWS with Citrus aurantium (PWS + S) extract standardized for 30% p-synephrine (20 mg)...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28096757/effects-of-ingesting-a-pre-workout-dietary-supplement-with-and-without-synephrine-for-8%C3%A2-weeks-on-training-adaptations-in-resistance-trained-males
#5
Y Peter Jung, Conrad P Earnest, Majid Koozehchian, Minye Cho, Nick Barringer, Dillon Walker, Christopher Rasmussen, Mike Greenwood, Peter S Murano, Richard B Kreider
BACKGROUND: The purpose of this study was to examine whether ingesting a pre-workout dietary supplement (PWS) with and without synephrine (S) during training affects training responses in resistance-trained males. METHODS: Resistance-trained males (N = 80) were randomly assigned to supplement their diet in a double-blind manner with either a flavored placebo (PLA); a PWS containing beta-alanine (3 g), creatine nitrate as a salt (2 g), arginine alpha-ketoglutarate (2 g), N-Acetyl-L-Tyrosine (300 mg), caffeine (284 mg), Mucuna pruiriens extract standardized for 15% L-Dopa (15 mg), Vitamin C as Ascorbic Acid (500 mg), niacin (60 mg), folate as folic acid (50 mg), and Vitamin B12 as Methylcobalamin (70 mg); or, the PWS supplement with Citrus aurantium extract containing 20 mg of synephrine (PWS + S) once per day for 8-weeks during training...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28095208/tale-of-the-huanglongbing-disease-pyramid-in-the-context-of-the-citrus-phytobiome
#6
Nian Wang, Lukasz Stelinski, Kirsten Pelz-Stelinski, Jim H Graham, Yunzeng Zhang
The Huanglongbing (HLB) disease pyramid is composed of Liberibacters, psyllid vectors, citrus hosts and the environment. The epidemiological outcomes for Liberibacter-associated plant diseases are collectively determined by the inherent relationships between plant-Liberibacters and psyllids, and how various environment factors affect plant-Liberibacter-psyllid interactions. Citrus-Liberibacter-psyllid interactions occur in a complex microbiome system. In this review, we focus on the progress in understanding the HLB disease pyramid, and how the microbiome affects the HLB disease pyramid including the interaction between HLB and the citrus microbiome; the interaction between Liberibacters and psyllids; the interaction between Liberibacters and gut microbiota in psyllids, and the effect of HLB on selected above- and belowground citrus pathogens...
January 17, 2017: Phytopathology
https://www.readbyqxmd.com/read/28091350/the-effects-of-flavanone-rich-citrus-juice-on-cognitive-function-and-cerebral-blood-flow-an-acute-randomised-placebo-controlled-cross-over-trial-in-healthy-young-adults
#7
Daniel J Lamport, Deepa Pal, Anna L Macready, Sofia Barbosa-Boucas, John M Fletcher, Claire M Williams, Jeremy P E Spencer, Laurie T Butler
A plausible mechanism underlying flavonoid-associated cognitive effects is increased cerebral blood flow (CBF). However, behavioural and CBF effects following flavanone-rich juice consumption have not been explored. The aim of this study was to investigate whether consumption of flavanone-rich juice is associated with acute cognitive benefits and increased regional CBF in healthy, young adults. An acute, single-blind, randomised, cross-over design was applied with two 500-ml drink conditions - high-flavanone (HF; 70·5 mg) drink and an energy-, and vitamin C- matched, zero-flavanone control...
December 2016: British Journal of Nutrition
https://www.readbyqxmd.com/read/28090406/leaf-disc-grafting-for-the-transmission-of-candidatus-liberibacter-asiaticus-in-citrus-citrus-sinensis-rutaceae-seedlings
#8
Flavia Tabay Zambon, Karen Plant, Ed Etxeberria
PREMISE OF THE STUDY: The search for resistance/tolerance to the devastating citrus huanglongbing disease (syn. HLB or citrus greening) is generating an increasing number of new plants of diverse genetic makeup. As the increasing number of new plants require more space, resources, and time, the need for faster and more efficient HLB screening tests becomes crucial. METHODS AND RESULTS: The leaf-disc grafting system described here consists in replacing a disc of leaf tissue with a similar disc from an infected plant...
January 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28088045/uhplc-ms-ms-method-for-the-quantitation-of-penicillin-g-and-metabolites-in-citrus-fruit-using-internal-standards
#9
Daniele Canzani, Kevin Hsieh, Matthew Standland, Walter Hammack, Fadi Aldeek
Penicillin G has been applied to citrus trees as a potential treatment in the fight against Huanglongbing (HLB). Here, we have developed and validated a method to identify and quantitate penicillin G and two of its metabolites, penillic acid and penilloic acid, in citrus fruit using ultra high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). This method improves upon a previous method by incorporating isotopically labeled internal standards, namely, penillic acid-D5, and penilloic acid-D5...
January 10, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28087647/an-additional-phytosanitary-cold-treatment-against-ceratitis-capitata-diptera-tephritidae-in-oroblanco-citrus-fruit
#10
Yoav Gazit, Roy Kaspi
For 'Oroblanco' ('Sweetie'), the sweet seedless pummelo-grapefruit hybrid, when exported from Israel to Japan, the standard cold treatment against Ceratitis capitata (Wied.) (Diptera: Tephritidae) is conducted at ≤ 1.5 °C, for 16 d. In recent years, the transportation means of exported citrus was changed from reefer vessels to individual refrigerated containers, where the fruit bulk is relatively small and may be exposed to temperature fluctuations and to the risk of chilling injuries. To reduce this risk, Israel proposed to Japan to increase the treatment temperature and extend its duration to 2...
January 12, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28087206/spatial-relationships-between-entomopathogenic-nematodes-and-nematophagous-fungi-in-florida-citrus-orchards
#11
Ekta Pathak, Raquel Campos-Herrera, Fahiem E El-Borai, Larry W Duncan
Relationships between entomopathogenic nematodes (EPNs), nematophagous fungi (NF) and soil physical and chemical properties were studied in a survey of 53 citrus orchards in central ridge and flatwoods ecoregions of Florida. Seven species of NF associated with nematodes were quantified directly using a real time qPCR assay. All nematophagous fungi studied exceptArthrobotrys musiformis andHirsutella rhossiliensiswere frequently detected (24-56%) in both regions.Paecilomyces lilacinusandGamsylella gephyropagumwere encountered more frequently in the flatwoods (P = 0...
January 10, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28081213/transcriptome-profiling-to-understand-the-effect-of-citrus-rootstocks-on-the-growth-of-shatangju-mandarin
#12
Xiang-Yu Liu, Juan Li, Meng-Meng Liu, Qing Yao, Jie-Zhong Chen
To obtain insight into potential mechanisms underlying the influence of rootstock on scion growth, we performed a comparative analysis of 'Shatangju' mandarin grafted onto 5 rootstocks: Fragrant orange (Citrus junons Sieb. ex. Tanaka), Red tangerine (Citrus reticulata Blanco), 'Shatangju' mandarin (Citrus reticulata Blanco), Rough lemon (Citrus jambhiri Lush) and Canton lemon (Citrus limonia Osbeck). The tree size of 'Shatangju' mandarin grafted onto Canton lemon and Rough lemon were the largest, followed by self-rooted rootstock trees, and the lowest tree sizes correspond to ones grafted on Red tangerine and Fragrant orange rootstocks...
2017: PloS One
https://www.readbyqxmd.com/read/28077064/an-internet-based-bioinformatics-toolkit-for-plant-biosecurity-diagnosis-and-surveillance-of-viruses-and-viroids
#13
Roberto A Barrero, Kathryn R Napier, James Cunnington, Lia Liefting, Sandi Keenan, Rebekah A Frampton, Tamas Szabo, Simon Bulman, Adam Hunter, Lisa Ward, Mark Whattam, Matthew I Bellgard
BACKGROUND: Detection and preventing entry of exotic viruses and viroids at the border is critical for protecting plant industries trade worldwide. Existing post entry quarantine screening protocols rely on time-consuming biological indicators and/or molecular assays that require knowledge of infecting viral pathogens. Plants have developed the ability to recognise and respond to viral infections through Dicer-like enzymes that cleave viral sequences into specific small RNA products. Many studies reported the use of a broad range of small RNAs encompassing the product sizes of several Dicer enzymes involved in distinct biological pathways...
January 11, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28068636/citrus-leaf-extract-reduces-blood-pressure-and-vascular-damage-in-repeatedly-heated-palm-oil-diet-induced-hypertensive-rats
#14
Hawa Nordin Siti, Yusof Kamisah, Mohd Ishak Nur Iliyani, Suhaila Mohamed, Kamsiah Jaarin
Prolonged consumption of repeatedly heated vegetable oil increases blood pressure. This study aimed to determine the effects of Citrus leaf extract, (CLE) on blood pressure, blood pressure-regulating enzymes and mediators, as well as aortic histomorphometry in heated palm oil induced-hypertension. Male Sprague Dawley rats (n=56) were divided into seven groups; control group was given normal diet and the other groups were fed with palm oil-enriched diet (15% w/w) either fresh (FPO), five-time-heated (5HPO) or ten-time-heated (10HPO) with or without CLE (0...
January 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28068488/side-streams-of-plant-food-processing-as-a-source-of-valuable-compounds-selected-examples
#15
Andreas Schieber
Industrial processing of plant-derived raw materials generates enormous amounts of by-products. On one hand, these by-products constitute a serious disposal issue because they often emerge seasonally and are prone to microbial decay. On the other hand, they are an abundant source of valuable compounds, in particular secondary plant metabolites and cell wall materials, which may be recovered and used to functionalize foods and replace synthetic additives with ingredients of natural origin. This review covers 150 references and presents select studies performed between 2001 and 2016 on the recovery, characterization, and application of valuable constituents from grape pomace, apple pomace, potato peels, tomato pomace, carrot pomace, onion peels, by-products of citrus, mango, banana, and pineapple processing, side streams of olive oil production, and cereal by-products...
January 4, 2017: Annual Review of Food Science and Technology
https://www.readbyqxmd.com/read/28068188/physiologic-anatomic-and-gene-expression-changes-in-citrus-sunki-poncirus-trifoliata-and-their-hybrids-after-liberibacter-asiaticus-infection
#16
Leonardo Pires Boava, Mariângela Cristofani-Yaly, Marcos Antonio Machado
Huanglongbing (HLB) is a destructive disease of citrus caused by phloem-limited bacteria, namely, Liberibacter asiaticus (Las) L. africanus (Laf) and L. americanus (Lam). Although there are no known HLB-resistant citrus species, Poncirus trifoliata has been reported as more tolerant. Assuming that callose deposition in the phloem of infected plants can inhibit translocation of photosynthetic products and cause starch accumulation, we compared callose deposition in petioles and starch accumulation in infected leaves of three genotypes (Citrus sinensis, C...
January 9, 2017: Phytopathology
https://www.readbyqxmd.com/read/28065920/pamps-prrs-effectors-and-r-genes-associated-with-citrus-pathogen-interactions
#17
REVIEW
Ronaldo J D Dalio, Diogo M Magalhães, Carolina M Rodrigues, Gabriella D Arena, Tiago S Oliveira, Reinaldo R Souza-Neto, Simone C Picchi, Paula M M Martins, Paulo J C Santos, Heros J Maximo, Inaiara S Pacheco, Alessandra A De Souza, Marcos A Machado
BACKGROUND: Recent application of molecular-based technologies has considerably advanced our understanding of complex processes in plant-pathogen interactions and their key components such as PAMPs, PRRs, effectors and R-genes. To develop novel control strategies for disease prevention in citrus, it is essential to expand and consolidate our knowledge of the molecular interaction of citrus plants with their pathogens. SCOPE: This review provides an overview of our understanding of citrus plant immunity, focusing on the molecular mechanisms involved in the interactions with viruses, bacteria, fungi, oomycetes and vectors related to the following diseases: tristeza, psorosis, citrus variegated chlorosis, citrus canker, huanglongbing, brown spot, post-bloom, anthracnose, gummosis and citrus root rot...
January 8, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28065188/flavanone-rich-citrus-beverages-counteract-the-transient-decline-in-postprandial-endothelial-function-in-humans-a-randomised-controlled-double-masked-cross-over-intervention-study
#18
Catarina Rendeiro, Honglin Dong, Caroline Saunders, Laura Harkness, Melvin Blaze, Yanpeng Hou, Ronald L Belanger, Giulia Corona, Julie A Lovegrove, Jeremy P E Spencer
Specific flavonoid-rich foods/beverages are reported to exert positive effects on vascular function; however, data relating to effects in the postprandial state are limited. The present study investigated the postprandial, time-dependent (0-7 h) impact of citrus flavanone intake on vascular function. An acute, randomised, controlled, double-masked, cross-over intervention study was conducted by including middle-aged healthy men (30-65 years, n 28) to assess the impact of flavanone intake (orange juice: 128·9 mg; flavanone-rich orange juice: 272·1 mg; homogenised whole orange: 452·8 mg; isoenergetic control: 0 mg flavanones) on postprandial (double meal delivering a total of 81 g of fat) endothelial function...
December 2016: British Journal of Nutrition
https://www.readbyqxmd.com/read/28063510/converting-citrus-wastes-into-value-added-products-economic-and-environmently-friendly-approaches
#19
REVIEW
Kavita Sharma, Neelima Mahato, Moo Hwan Cho, Yong Rok Lee
Citrus fruits, including oranges, grapefruits, lemons, limes, tangerines, and mandarins, are among the most widely cultivated fruits around the globe. Its production is increasing every year due to rising consumer demand. Citrus-processing industries generate huge amounts of wastes every year, and citrus peel waste alone accounts for almost 50% of the wet fruit mass. Citrus waste is of immense economic value as it contains an abundance of various flavonoids, carotenoids, dietary fiber, sugars, polyphenols, essential oils, and ascorbic acid, as well as considerable amounts of some trace elements...
February 2017: Nutrition
https://www.readbyqxmd.com/read/28060864/a-major-facilitator-superfamily-transporter-mediated-resistance-to-oxidative-stress-and-fungicides-requires-yap1-skn7-and-map-kinases-in-the-citrus-fungal-pathogen-alternaria-alternata
#20
Li-Hung Chen, Hsieh-Chin Tsai, Pei-Ling Yu, Kuang-Ren Chung
Major Facilitator Superfamily (MFS) transporters play an important role in multidrug resistance in fungi. We report an AaMFS19 gene encoding a MFS transporter required for cellular resistance to oxidative stress and fungicides in the phytopathogenic fungus Alternaria alternata. AaMFS19, containing 12 transmembrane domains, displays activity toward a broad range of substrates. Fungal mutants lacking AaMFS19 display profound hypersensitivities to cumyl hydroperoxide, potassium superoxide, many singlet oxygen-generating compounds (eosin Y, rose Bengal, hematoporphyrin, methylene blue, and cercosporin), and the cell wall biosynthesis inhibitor, Congo red...
2017: PloS One
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