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https://www.readbyqxmd.com/read/28396678/identification-of-circular-rnas-in-kiwifruit-and-their-species-specific-response-to-bacterial-canker-pathogen-invasion
#1
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
#2
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
#3
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
#4
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 27, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28369338/origin-and-evolution-of-the-kiwifruit-canker-pandemic
#5
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
#6
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
#7
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
#8
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
https://www.readbyqxmd.com/read/28317715/evaluation-of-penicillium-expansum-for-growth-patulin-accumulation-nonvolatile-compounds-and-volatile-profile-in-kiwi-juices-of-different-cultivars
#9
Yuan Wang, Tingting Shan, Yahong Yuan, Zhiwei Zhang, Chunfeng Guo, Tianli Yue
Patulin (PAT) contamination and changes of nonvolatile and volatile compounds caused by Penicillium expansum in fresh juices of 8 kiwi cultivars were investigated. Growth and PAT production of P. expansum were greater at 25°C than at 4°C. P. expansum grew in kiwi juices under pH ranging from 2.75 to 3.27 and produced 45.10-268.88μg/mL of PAT at 25°C. Decreases occurred in malic acid and soluble protein; while consumption and production simultaneously happened for reducing sugar, total soluble solid, titratable acid, citric acid, ascorbic acid and total phenolics...
August 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28298689/postharvest-application-of-brassica-meal-derived-allyl-isothiocyanate-to-kiwifruit-effect-on-fruit-quality-nutraceutical-parameters-and-physiological-response
#10
Luisa Ugolini, Laura Righetti, Katya Carbone, Roberta Paris, Lorena Malaguti, Alessandra Di Francesco, Laura Micheli, Mariano Paliotta, Marta Mari, Luca Lazzeri
The use of natural compounds to preserve fruit quality and develop high value functional products deserves attention especially in the growing industry of processing and packaging ready-to-eat fresh-cut fruit. In this work, potential mechanisms underlying the effects of postharvest biofumigation with brassica meal-derived allyl-isothiocyanate on the physiological responses and quality of 'Hayward' kiwifruits were studied. Fruits were treated with 0.15 mg L(-1) of allyl-isothiocyanate vapours for 5 h and then stored in controlled atmosphere (2% O2, 4...
March 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28262000/horizontal-gene-transfer-gone-wild-promiscuity-in-a-kiwifruit-pathogen-leads-to-resistance-to-chemical-control
#11
Steven E Lindow
No abstract text is available yet for this article.
March 6, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28251154/effects-of-six-commercial-saccharomyces-cerevisiae-strains-on-phenolic-attributes-antioxidant-activity-and-aroma-of-kiwifruit-actinidia-deliciosa-cv-wine
#12
Xingchen Li, Yage Xing, Lin Cao, Qinglian Xu, Shaohua Li, Ranran Wang, Zijing Jiang, Zhenming Che, Hongbin Lin
"Hayward" kiwifruit (Actinidia deliciosa cv.), widely planted all around the world, were fermented with six different commercial Saccharomyces cerevisiae strains (BM4×4, RA17, RC212, WLP77, JH-2, and CR476) to reveal their influence on the phenolic profiles, antioxidant activity, and aromatic components. Significant differences in the levels of caffeic acid, protocatechuate, and soluble solid content were found among wines with the six fermented strains. Wines fermented with RC212 strain exhibited the highest total phenolic acids as well as DPPH radical scavenging ability and also had the strongest ability to produce volatile esters...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28249011/transposon-insertion-libraries-for-the-characterization-of-mutants-from-the-kiwifruit-pathogen-pseudomonas-syringae-pv-actinidiae
#13
Carl H Mesarich, Jonathan Rees-George, Paul P Gardner, Fatemeh Ashari Ghomi, Monica L Gerth, Mark T Andersen, Erik H A Rikkerink, Peter C Fineran, Matthew D Templeton
Pseudomonas syringae pv. actinidiae (Psa), the causal agent of kiwifruit canker, is one of the most devastating plant diseases of recent times. We have generated two mini-Tn5-based random insertion libraries of Psa ICMP 18884. The first, a 'phenotype of interest' (POI) library, consists of 10,368 independent mutants gridded into 96-well plates. By replica plating onto selective media, the POI library was successfully screened for auxotrophic and motility mutants. Lipopolysaccharide (LPS) biosynthesis mutants with 'Fuzzy-Spreader'-like morphologies were also identified through a visual screen...
2017: PloS One
https://www.readbyqxmd.com/read/28189049/characterization-of-metabolites-in-different-kiwifruit-varieties-by-nmr-and-fluorescence-spectroscopy
#14
Nur Ashikin Abdul Hamid, Ahmed Mediani, M Maulidiani, Faridah Abas, Yong Seo Park, Hanna Leontowicz, Maria Leontowicz, Jacek Namiesnik, S Gorinstein
It is known from our previous studies that kiwifruits, which are used in common human diet, have preventive properties of coronary artery disease. This study describes a combination of (1)H NMR spectroscopy, multivariate data analyses and fluorescence measurements in differentiating of some kiwifruit varieties, their quenching and antioxidant properties. A total of 41 metabolites were identified by comparing with literature data Chenomx database and 2D NMR. The binding properties of the extracted polyphenols against HSA showed higher reactivity of studied two cultivars in comparison with the common Hayward...
January 25, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28159291/corrigendum-to-nutrient-compositions-and-antioxidant-capacity-of-kiwifruit-actinidia-and-their-relationship-with-flesh-color-and-commercial-value-food-chem-218-2017-294-304
#15
Tingting Ma, Xiangyu Sun, Jinmei Zhao, Yilin You, Yushan Lei, Guitian Gao, Jicheng Zhan
No abstract text is available yet for this article.
June 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28159273/synthesis-and-characterization-of-hollow-porous-molecular-imprinted-polymers-for-the-selective-extraction-and-determination-of-caffeic-acid-in-fruit-samples
#16
Dengxin Fan, Ling Jia, Haiyan Xiang, Mijun Peng, Hui Li, Shuyun Shi
Hollow porous molecular imprinted polymers (HPMIPs) were prepared using caffeic acid (CA) as template, 4-vinylpyridine (4-VP) as functional monomer, and MCM-48 as sacrificial support. Large surface area (562.7m(2)/g) of HPMIPs resulted in high binding capacity (27.26mg/g) and fast kinetic binding (40min) in comparison with solid MIPs. Equilibrium data fitted well to Freundlich equation, and adsorption process with multi-diffusion mechanisms could be described by pseudo-second order model. Selectivity of HPMIPs was favorable...
June 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28158721/kiwifruit-svp2-gene-prevents-premature-budbreak-during-dormancy
#17
Rongmei Wu, Tianchi Wang, Ben A W Warren, Andrew C Allan, Richard C Macknight, Erika Varkonyi-Gasic
Overexpression of SVP2 in kiwifruit delays budbreak before sufficient winter chilling. SVP2-mediated vegetative growth restriction involves stress response pathways, and commonalities exist between Arabidopsis and kiwifruit SVP targets.
February 1, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28131340/sucrose-phloem-unloading-follows-an-apoplastic-pathway-with-high-sucrose-synthase-in-actinidia-fruit
#18
Cheng Chen, Yulin Yuan, Chen Zhang, Huixia Li, Fengwang Ma, Mingjun Li
Phloem unloading plays a pivotal role in photoassimilate partitioning and the accumulation of sugars in sink organs, e.g. fruit. Here, we investigated the pathway of sucrose unloading in kiwifruit (Actinidia deliciasa cv. Qinmei) using a combination of electron microscopy, transport of the phloem-mobile symplastic tracer carboxyfluorescein and enzyme activity and gene expression assays. Our structural investigation revealed that the sieve element-companion cell complex of bundles feeding the fruit flesh was symplastically isolated from its surrounding parenchyma cells throughout fruit development, whereas numerous plasmodesmata were present between the phloem parenchyma cells...
February 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28125645/gbs-based-deconvolution-of-the-surviving-north-american-collection-of-cold-hardy-kiwifruit-actinidia-spp-germplasm
#19
Arthur T O Melo, Robert S Guthrie, Iago Hale
Plant germplasm collections can be invaluable resources to plant breeders, provided they are well-characterized. After 140 years of acquisition and curation efforts by a wide and largely non-coordinated array of private and institutional actors, the current US collection of cold-hardy kiwifruit (Actinidia spp.) is rife with misclassifications, misnomers, and mix-ups. To facilitate the systematic improvement and resource-efficient curation of these species of long-recognized horticultural potential, we used genotyping-by-sequencing (GBS) data to deconvolute this historic collection...
2017: PloS One
https://www.readbyqxmd.com/read/28112597/identification-of-loci-of-pseudomonas-syringae-pv-actinidiae-involved-in-lipolytic-activity-and-their-role-in-colonization-of-kiwifruit-leaves
#20
Hitendra Kumar Patel, Patrizia Ferrante, Meng Xianfa, Sree Gowrinadh Javvadi, Sujatha Subramoni, Marco Scortichini, Vittorio Venturi
Bacterial canker disease caused by Pseudomonas syringae pv. actinidiae (Psa), an emerging pathogen of kiwifruit plants, has recently brought about major economic losses worldwide. Genetic studies on virulence functions of Psa have not yet been reported and there is little experimental data regarding bacterial genes involved in pathogenesis. In this study, we performed a genetic screen in order to identify transposon mutants altered in the lipolytic activity as it is known that mechanisms of regulation, production and secretion of enzymes often play crucial roles in virulence of plant pathogens...
January 23, 2017: Phytopathology
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