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https://www.readbyqxmd.com/read/28640214/a-pilot-randomized-cross-over-trial-to-examine-the-effect-of-kiwifruit-on-satiety-and-measures-of-gastric-comfort-in-healthy-adult-males
#1
Alison Wallace, Sarah Eady, Lynley Drummond, Duncan Hedderley, Juliet Ansell, Richard Gearry
'Hayward' kiwifruit anecdotally are associated with improved gastrointestinal comfort following the consumption of high protein meals, possibly because of the presence of a protease enzyme, actinidin. The study aimed to use SmartPill™ technology to investigate the acute effect of kiwifruit with actinidin (Actinidia chinensis var. deliciosa 'Hayward') and kiwifruit without actinidin (A. chinensis var. chinensis 'Hort16A') on digestion of a large protein meal. Ten healthy male subjects were recruited. The participants attended the clinic three times, having fasted overnight...
June 22, 2017: Nutrients
https://www.readbyqxmd.com/read/28624093/osmotic-dehydration-of-organic-kiwifruit-pre-treated-by-pulsed-electric-fields-and-monitored-by-nmr
#2
Maria Victoria Traffano-Schiffo, Luca Laghi, Marta Castro-Giraldez, Urszula Tylewicz, Pietro Rocculi, Luigi Ragni, Marco Dalla Rosa, Pedro J Fito
Osmotic dehydration (OD) is a widely used preservation technique that consists in the reduction in food water activity by the immersion of the biological tissue in hypertonic solutions. The aim of this work was to analyze the effect of pulsed electric fields (PEF) in mass transfer as a pre-treatment of the OD using NMR. In this sense, PEF pre-treatments were done using three different voltages (100, 250 and 400V/cm) and 60 number of pulse. The OD of kiwifruit was carried out in 61.5% of sucrose solution at 25°C, for a contact period from 0 to 120min...
December 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28620210/a-bacterial-acetyltransferase-triggers-immunity-in-arabidopsis-thaliana-independent-of-hypersensitive-response
#3
Jay Jayaraman, Sera Choi, Maxim Prokchorchik, Du Seok Choi, Amandine Spiandore, Erik H Rikkerink, Matthew D Templeton, Cécile Segonzac, Kee Hoon Sohn
Type-III secreted effectors (T3Es) play critical roles during bacterial pathogenesis in plants. Plant recognition of certain T3Es can trigger defence, often accompanied by macroscopic cell death, termed the hypersensitive response (HR). Economically important species of kiwifruit are susceptible to Pseudomonas syringae pv. actinidiae (Psa), the causal agent of kiwifruit bacterial canker. Although Psa is non-pathogenic in Arabidopsis thaliana, we observed that a T3E, HopZ5 that is unique to a global outbreak clade of Psa, triggers HR and defence in Arabidopsis accession Ct-1...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28613977/the-scientific-economic-and-social-impacts-of-the-new-zealand-outbreak-of-bacterial-canker-of-kiwifruit-pseudomonas-syringae-pv-actinidiae
#4
Joel L Vanneste
The introduction of Pseudomonas syringae pv. actinidiae (Psa) severely damaged the New Zealand kiwifruit industry, which in 2010 was based on only two cultivars. Despite an extraordinarily quick and strong response by industry, government, and scientists to minimize the economic and social impacts, the economic consequences of this outbreak were severe. Although our understanding of Psa epidemiology and control methods increased substantively over the past six years, the kiwifruit industry largely recovered because of the introduction of a less-susceptible yellow-fleshed cultivar...
June 14, 2017: Annual Review of Phytopathology
https://www.readbyqxmd.com/read/28598694/kiwifruit-ameliorates-gentamicin-induced-histological-and-histochemical-alterations-in-the-kidney-of-albino-mice
#5
Y I Mahmoud, S Farag
Gentamicin is an antibiotic used worldwide for treating Gram-negative bacterial infections. Gentamicin causes nephrotoxicity in up to 25% of therapeutic cases owing to increased production of free radicals. Kiwifruit are nutrient-dense fruits that have proven effective for ameliorating many pathological conditions caused by oxidative stress. We investigated the possible prophylactic and therapeutic effects of kiwifruit on the changes in renal histology and histochemistry caused by gentamicin. Intramuscular injection of mice with gentamicin for 10 consecutive days was nephrotoxic as indicated by epithelial vacuolization, glomerular atrophy and tubular necrosis...
June 9, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28572946/experimental-and-modeling-investigation-of-mass-transfer-during-combined-infrared-vacuum-drying-of-hayward-kiwifruits
#6
Emad Aidani, Mohammadhossein Hadadkhodaparast, Mahdi Kashaninejad
In this work, we tried to evaluate mass transfer during a combined infrared-vacuum drying of kiwifruits. Infrared radiation power (200-300 W) and system pressure (5-15 kPa), as drying parameters, are evaluated on drying characteristics of kiwifruits. Both the infrared lamp power and vacuum pressure affected the drying time of kiwifruit slices. Nine different mathematical models were evaluated for moisture ratios using nonlinear regression analysis. The results of regression analysis indicated that the quadratic model is the best to describe the drying behavior with the lowest SE values and highest R value...
May 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28558268/identification-of-in-situ-flower-volatiles-from-kiwifruit-actinidia-chinensis-var-deliciosa-cultivars-and-their-male-pollenisers-in-a-new-zealand-orchard
#7
Andrew M Twidle, David M Suckling, Alan G Seal, Bruno Fedrizzi, Lisa I Pilkington, David Barker
In situ flower volatiles from six kiwifruit cultivars (Actinidia chinensis var. deliciosa); 'Hayward', 'Chieftain', 'M56', 'Zes007' (Green11), 'M36', and 'M43' were collected by dynamic headspace sampling. Forty-five compounds were detected in the headspace of the flowers, with straight chain hydrocarbons and terpenes accounting for >98% of the volatiles emitted quantitatively across the six cultivars. Of these hydrocarbons, (3Z,6Z,9Z)-heptadecatriene is reported for the first time from a floral source while (8Z)-hexadecene and (9Z)-nonadecene are reported for the first time from kiwifruit flowers...
May 27, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28557573/putative-mechanisms-of-kiwifruit-on-maintenance-of-normal-gastrointestinal-function
#8
Simone Birgit Bayer, Richard Blair Gearry, Lynley Ngaio Drummond
Kiwifruit are recognized as providing relief from constipation and symptoms of constipation-predominant irritable bowel syndrome (IBS-C). However, the underlying mechanisms, specifically in regards to gastrointestinal transit time and motility, are still not completely understood. This review provides an overview on the physiological and pathophysiological processes underlying constipation and IBS-C, the composition of kiwifruit, and recent advances in the research of kiwifruit and abdominal comfort. Additionally, gaps in the research are highlighted and scientific studies of other foods with known effects on the gastrointestinal tract are consulted to find likely mechanisms of action...
May 30, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28551271/comparison-of-fruit-quality-and-gc-ms-based-metabolite-profiling-of-kiwifruit-jecy-green-natural-and-exogenous-ethylene-induced-ripening
#9
Sooyeon Lim, Jeong Gu Lee, Eun Jin Lee
We applied exogenous ethylene to 'Jecy green' kiwifruit to elucidate the differences in fruit quality and metabolite profiling between naturally ripe (NR) and ethylene-induced ripe (ER) kiwifruit. Kiwifruit were exposed to ethylene (200μL/L) for 12h at 20°C and maintained for 9days at 20°C. Two metabolites of ascorbic acid and arabinose significantly decreased during kiwifruit ripening regardless of the ripening method. The concentrations of sucrose, myo-inositol, citric acid, and malic acid in NR fruit were substantially higher than those in ER fruit, while the concentrations of fructose, glucose, and quinic acid in ER fruit were higher than those in NR fruit...
November 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28543189/rapid-radiations-of-both-kiwifruit-hybrid-lineages-and-their-parents-shed-light-on-a-two-layer-mode-of-species-diversification
#10
Yifei Liu, Dawei Li, Qiong Zhang, Chi Song, Caihong Zhong, Xudong Zhang, Ying Wang, Xiaohong Yao, Zupeng Wang, Shaohua Zeng, Ying Wang, Yangtao Guo, Shuaibin Wang, Xinwei Li, Li Li, Chunyan Liu, Honour C McCann, Weiming He, Yan Niu, Min Chen, Liuwen Du, Junjie Gong, Paul M Datson, Elena Hilario, Hongwen Huang
Reticulate speciation caused by interspecific hybridization is now recognized as an important mechanism in the creation of biological diversity. However, depicting the patterns of phylogenetic networks for lineages that have undergone interspecific gene flow is challenging. Here we sequenced 25 taxa representing natural diversity in the genus Actinidia with an average mapping depth of 26× on the reference genome to reconstruct their reticulate history. We found evidence, including significant gene tree discordance, cytonuclear conflicts, and changes in genome-wide heterozygosity across taxa, collectively supporting extensive reticulation in the genus...
May 25, 2017: New Phytologist
https://www.readbyqxmd.com/read/28490110/multivariate-statistical-analysis-of-the-polyphenolic-constituents-in-kiwifruit-juices-to-trace-fruit-varieties-and-geographical-origins
#11
Jing Guo, Yahong Yuan, Pei Dou, Tianli Yue
Fifty-one kiwifruit juice samples of seven kiwifruit varieties from five regions in China were analyzed to determine their polyphenols contents and to trace fruit varieties and geographical origins by multivariate statistical analysis. Twenty-one polyphenols belonging to four compound classes were determined by ultra-high-performance liquid chromatography coupled with ultra-high-resolution TOF mass spectrometry. (-)-Epicatechin, (+)-catechin, procyanidin B1 and caffeic acid derivatives were the predominant phenolic compounds in the juices...
October 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28486974/cell-separation-in-kiwifruit-without-development-of-a-specialised-detachment-zone
#12
Roneel Prakash, Ian C Hallett, Sally F Wong, Sarah L Johnston, Erin M O'Donoghue, Peter A McAtee, Alan G Seal, Ross G Atkinson, Roswitha Schröder
BACKGROUND: Unlike in abscission or dehiscence, fruit of kiwifruit Actinidia eriantha develop the ability for peel detachment when they are ripe and soft in the absence of a morphologically identifiable abscission zone. Two closely-related genotypes with contrasting detachment behaviour have been identified. The 'good-peeling' genotype has detachment with clean debonding of cells, and a peel tissue that does not tear. The 'poor-peeling' genotype has poor detachability, with cells that rupture upon debonding, and peel tissue that fragments easily...
May 10, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28396678/identification-of-circular-rnas-in-kiwifruit-and-their-species-specific-response-to-bacterial-canker-pathogen-invasion
#13
Zupeng Wang, Yifei Liu, Dawei Li, Li Li, Qiong Zhang, Shuaibin Wang, Hongwen Huang
Research studies have recently focused on circle RNAs (circRNAs) in relation to their regulatory functions in animals. However, the systematic identification of circRNAs in plants, especially non-model plants, is limited. In addition, raw report on the prediction of the potential role of circRNAs in plant response to pathogen invasion is currently available. We conducted the systematic identification of circRNAs from four materials originating from three species belonging to genus Actinidia under different situations using ribosomal RNA (rRNA) depleted RNA-Seq data...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28386309/kiwifruit-alleviates-learning-and-memory-deficits-induced-by-pb-through-antioxidation-and-inhibition-of-microglia-activation-in-vitro-and-in-vivo
#14
Wei-Zhen Xue, Qian-Qian Yang, Yiwen Chen, Rong-Xin Zou, Dong Xing, Yi Xu, Yong-Sheng Liu, Hui-Li Wang
Lead (Pb) exposure, in particular during early postnatal life, increases susceptibility to cognitive dysfunction and neurodegenerative outcomes. The detrimental effect of Pb exposure is basically due to an increasing ROS production which overcomes the antioxidant systems and finally leads to cognitive dysfunction. Kiwifruit is rich in the antioxidants like vitamin C and polyphenols. This study aims to investigate the effects and mechanism of kiwifruit to alleviate learning and memory deficits induced by Pb exposure...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28385839/draft-genome-sequences-of-pectobacterium-carotovorum-subsp-actinidiae-icmp-19971-and-icmp-19972-two-strains-isolated-from-actinidia-chinensis-with-symptoms-of-summer-canker-in-south-korea
#15
Sandra B Visnovsky, Preetinanda Panda, Robert Taylor, Andrew R Pitman
Pectobacterium carotovorum subsp. actinidiae is the causal agent of summer canker in kiwifruit plants in South Korea. We report here the draft genome sequences of two P. carotovorum subsp. actinidiae strains, ICMP 19971 and ICMP 19972, which were originally isolated from Actinidia chinensis with symptoms of summer canker. These genome sequences will aid in the identification of genetic traits associated with their unusual capacity to cause canker and help understanding of the threat these exotic enterobacteria pose to the New Zealand kiwifruit industry...
April 6, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28369532/three-ft-and-multiple-cen-and-bft-genes-regulate-maturity-flowering-and-vegetative-phenology-in-kiwifruit
#16
Charlotte Voogd, Lara A Brian, Tianchi Wang, Andrew C Allan, Erika Varkonyi-Gasic
Kiwifruit is a woody perennial horticultural crop, characterized by excessive vegetative vigor, prolonged juvenility, and low productivity. To understand the molecular factors controlling flowering and winter dormancy, here we identify and characterize the kiwifruit PEBP (phosphatidylethanolamine-binding protein) gene family. Five CEN-like and three BFT-like genes are differentially expressed and act as functionally conserved floral repressors, while two MFT-like genes have no impact on flowering time. FT-like genes are differentially expressed, with AcFT1 confined to shoot tip and AcFT2 to mature leaves...
March 1, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28369338/origin-and-evolution-of-the-kiwifruit-canker-pandemic
#17
Honour C McCann, Li Li, Yifei Liu, Dawei Li, Hui Pan, Caihong Zhong, Erik H A Rikkerink, Matthew D Templeton, Christina Straub, Elena Colombi, Paul B Rainey, Hongwen Huang
Recurring epidemics of kiwifruit (Actinidia spp.) bleeding canker disease are caused by Pseudomonas syringae pv. actinidiae (Psa). In order to strengthen understanding of population structure, phylogeography, and evolutionary dynamics, we isolated Pseudomonas from cultivated and wild kiwifruit across six provinces in China. Based on the analysis of 80 sequenced Psa genomes, we show that China is the origin of the pandemic lineage but that strain diversity in China is confined to just a single clade. In contrast, Korea and Japan harbor strains from multiple clades...
April 1, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28365721/pcppi-a-comprehensive-database-for-the-prediction-of-penicillium-crop-protein-protein-interactions
#18
Junyang Yue, Danfeng Zhang, Rongjun Ban, Xiaojing Ma, Danyang Chen, Guangwei Li, Jia Liu, Michael Wisniewski, Samir Droby, Yongsheng Liu
Penicillium expansum , the causal agent of blue mold, is one of the most prevalent post-harvest pathogens, infecting a wide range of crops after harvest. In response, crops have evolved various defense systems to protect themselves against this and other pathogens. Penicillium -crop interaction is a multifaceted process and mediated by pathogen- and host-derived proteins. Identification and characterization of the inter-species protein-protein interactions (PPIs) are fundamental to elucidating the molecular mechanisms underlying infection processes between P...
January 1, 2017: Database: the Journal of Biological Databases and Curation
https://www.readbyqxmd.com/read/28363189/identification-and-expression-analysis-of-photoreceptor-genes-in-kiwifruit-leaves-under-natural-daylength-conditions-and-their-relationship-with-other-genes-that-regulate-photoperiodic-flowering
#19
Yolanda Ferradás, Óscar Martínez, Manuel Rey, M Victoria González
Kiwifruit (Actinidia chinensis var. deliciosa (A. Chev) A. Chev.) is a dioecious vine highly dependent on pollination, which is limited by a lack of synchrony of flowering time between male and female plants. In many plant species, the regulation of the timing of flowering depends largely on seasonal cues such as photoperiod, which is detected by photoreceptors. In this report, we determined the full sequences of the PHYB (AcPHYB) and PHYA (AcPHYA) genes and a partial sequence of the CRY2 (AcCRY2) gene in kiwifruit...
March 18, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28344589/characterization-of-genes-encoding-key-enzymes-involved-in-anthocyanin-metabolism-of-kiwifruit-during-storage-period
#20
Boqiang Li, Yongxiu Xia, Yuying Wang, Guozheng Qin, Shiping Tian
'Hongyang' is a red fleshed kiwifruit with high anthocyanin content. In this study, we mainly investigated effects of different temperatures (25 and 0°C) on anthocyanin biosynthesis in harvested kiwifruit, and characterized the genes encoding key enzymes involved in anthocyanin metabolism, as well as evaluated the mode of the action, by which low temperature regulates anthocyanin accumulation in 'Hongyang' kiwifruit during storage period. The results showed that low temperature could effectively enhance the anthocyanin accumulation of kiwifruit in the end of storage period (90 days), which related to the increase in mRNA levels of ANS1, ANS2, DRF1, DRF2, and UGFT2...
2017: Frontiers in Plant Science
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