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https://www.readbyqxmd.com/read/28330189/defense-response-enhancement-in-strawberry-via-elicitors
#1
Gihan M H Hussein, Tahany M A Abdel-Rahman, A H Alwan
In this study, cell-suspension culture of strawberry (Fragaria × ananassa), cultivars Camarosa, and Sweet Charlie has been established. Embryogenic callus was induced by incubating the in vitro juvenile leaf explants on medium, containing 2-mg/l picloram at dark. Suspension culture was initiated from 4-week-old embryogenic calli in the liquid MS medium with 1-mg/l 2,4-D and 2-mg/l picloram. Suspension culture was maintained by sub-culturing each 3 weeks into a fresh medium. At week 9 after third sub-cultures, torpedo and cotyledonary embryo stages were observed...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28327625/early-metabolic-and-transcriptional-variations-in-fruit-of-natural-white-fruited-fragaria-vesca-genotypes
#2
Katja Härtl, Alisandra Denton, Katrin Franz-Oberdorf, Thomas Hoffmann, Melanie Spornraft, Björn Usadel, Wilfried Schwab
Strawberry fruits (Fragaria vesca) are valued for their sweet fruity flavor, juicy texture, and characteristic red color caused by anthocyanin pigments. To gain a deeper insight into the regulation of anthocyanin biosynthesis, we performed comparative metabolite profiling and transcriptome analyses of one red-fruited and two natural white-fruited strawberry varieties in two tissues and three ripening stages. Developing fruit of the three genotypes showed a distinctive pattern of polyphenol accumulation already in green receptacle and achenes...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317768/effect-of-xanthan-gum-on-the-release-of-strawberry-flavor-in-formulated-soy-beverage
#3
Jiao Xu, Zhiyong He, Maomao Zeng, Bingbing Li, Fang Qin, Linxiang Wang, Shengfang Wu, Jie Chen
The effects of xanthan gum on the release of strawberry flavor compounds in formulated soy protein isolate (SPI) beverage were investigated by headspace gas chromatography (GC). Seven strawberry flavor compounds (limonene, ethyl hexanoate, (Z)-3-hexenyl acetate, ethyl 2-methylbutanoate, ethyl butanoate, (Z)-3-hexen-1-ol and diacetyl) could be detected by GC and hence analyzed the gas-matrix partition coefficients (K). The release of flavor compounds was restrained in SPI and/or xanthan gum solution. The retention of (Z)-3-hexen-1-ol, limonene and diacetyl significantly changed (p<0...
August 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28302870/relative-colour-cues-improve-colour-constancy-in-birds
#4
Peter Olsson, Almut Kelber
A ripe strawberry looks red to our eyes in sunlight and in the green light of a forest, although the spectrum of light reflected from its surface differs dramatically. This is caused by two effects, colour constancy, and our ability to learn relative colour cues: the ripe strawberry remains relatively "redder" than an unripe green strawberry. While colour constancy - the ability to recognize colours in shifted illumination - has been studied in many animals, the use of relative colour cues is investigated more rarely...
March 16, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28298699/searching-trans-resveratrol-in-fruits-and-vegetables-a-preliminary-screening
#5
Natividad Sebastià, Alegría Montoro, Zacarías León, Jose M Soriano
Resveratrol is a phytoalexin with potent anti-inflammatory, anti-oxidant and anti-carcinogenic effects. The object of this work was to determine whether this promising compound was present in the typical fruits and vegetables used in the Mediterranean diet. Our results indicated the presence of trans-resveratrol in concentrations ranging from 0.2 µg/g in tomatoes and 3 lg/g. in strawberries.
March 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28298698/high-pressure-processing-and-thermal-pasteurization-of-strawberry-pur%C3%A3-e-quality-parameters-and-shelf-life-evaluation-during-cold-storage
#6
Krystian Marszałek, Łukasz Woźniak, Sylwia Skąpska, Marta Mitek
This study was aimed at monitoring changes in the quality of strawberry purée preserved by high pressure processing (HPP) and thermal pasteurization (TP) during cold storage (6 °C) and determining its optimal storage period. The storage period of strawberry purée treated at 500 MPa, 50 °C, 15 min based on microbiological changes was 12 weeks. During this period, purée lost 32% of polyphenols, 73% of anthocyanins and entire vitamin C. Color changes described as dE increased up to 5.05 whereas the overall sensory quality decreased by 3 points on a 9-point scale...
March 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28290613/selection-of-experimental-strawberry-fragaria-x-ananassa-hybrids-based-on-selection-indices
#7
S D Vieira, D C de Souza, I A Martins, G H M R Ribeiro, L V Resende, A K L Ferraz, A G Galvão, J T V de Resende
The strawberry (Fragaria x ananassa Dutch.), is the only vegetable belonging to the rosacea family. All strawberry species have now emerged from wild species and belong to the genus Fragaria, being that this genus presents more than 45 described species, and only 11 are considered natural species. Due to the octoploid nature of strawberry and its variability after hybridization, selecting one or more characters may result in unfavorable genotypes and even the exclusion of promising ones, because negative genetic correlations have been observed among them that cause inefficient selection...
March 8, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28290272/strawberry-and-cranberry-polyphenols-improve-insulin-sensitivity-in-insulin-resistant-non-diabetic-adults-a-parallel-double-blind-controlled-and-randomised-clinical-trial
#8
Martine Paquette, Ana S Medina Larqué, S J Weisnagel, Yves Desjardins, Julie Marois, Geneviève Pilon, Stéphanie Dudonné, André Marette, Hélène Jacques
Plant-derived foods rich in polyphenols are associated with several cardiometabolic health benefits, such as reduced postprandial hyperglycaemia. However, their impact on whole-body insulin sensitivity using the hyperinsulinaemic-euglycaemic clamp technique remains under-studied. We aimed to determine the effects of strawberry and cranberry polyphenols (SCP) on insulin sensitivity, glucose tolerance, insulin secretion, lipid profile, inflammation and oxidative stress markers in free-living insulin-resistant overweight or obese human subjects (n 41) in a parallel, double-blind, controlled and randomised clinical trial...
March 14, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28287469/strawberry-tree-honey-induces-growth-inhibition-of-human-colon-cancer-cells-and-increases-ros-generation-a-comparison-with-manuka-honey
#9
Sadia Afrin, Tamara Y Forbes-Hernandez, Massimiliano Gasparrini, Stefano Bompadre, José L Quiles, Gavino Sanna, Nadia Spano, Francesca Giampieri, Maurizio Battino
Honey is a natural product known to modulate several biological activities including cancer. The aim of the present study was to examine the phytochemical content and the antioxidant activity of Strawberry tree (Arbutus unedo) honey (STH) and its cytotoxic properties against human colon adenocarcinoma (HCT-116) and metastatic (LoVo) cell lines in comparison with Manuka (Leptospermum scoparium) honey (MH). Several unifloral STH and MH were analyzed for their phenolic, flavonoid, amino acid and protein contents, as well as their radical scavenging activities...
March 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28286508/global-transcriptome-analysis-and-identification-of-differentially-expressed-genes-in-strawberry-after-preharvest-application-of-benzothiadiazole-and-chitosan
#10
Lucia Landi, Rita M De Miccolis Angelini, Stefania Pollastro, Erica Feliziani, Franco Faretra, Gianfranco Romanazzi
The use of resistance inducers is a novel strategy to elicit defense responses in strawberry fruit to protect against preharvest and postharvest decay. However, the mechanisms behind the specific resistance inducers are not completely understood. Here, global transcriptional changes in strawberry fruit were investigated using RNA-Seq technology. Preharvest, benzothiadiazole (BTH) and chitosan were applied to the plant canopy, and the fruit were harvested at 6, 12, and 24 h post-treatment. Overall, 5,062 and 5,210 differentially expressed genes (fold change ≥ 2) were identified in these fruits under the BTH and chitosan treatments, respectively, as compared to the control expression...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28283921/new-insights-into-the-operative-network-of-faeo-an-enone-oxidoreductase-from-fragaria-x-ananassa-duch
#11
Gabriella Collu, Domenica Farci, Francesca Esposito, Francesca Pintus, Joanna Kirkpatrick, Dario Piano
The 2-methylene-furan-3-one reductase or Fragaria x ananassa Enone Oxidoreductase (FaEO) catalyses the last reductive step in the biosynthesis of 4-hydroxy-2,5-dimethyl-3(2H)-furanone, a major component in the characteristic flavour of strawberries. In the present work, we describe the association between FaEO and the vacuolar membrane of strawberry fruits. Even if FaEO lacks epitopes for stable or transient membrane-interactions, it contains a calmodulin-binding region, suggesting that in vivo FaEO may be associated with the membrane via a peripheral protein complex with calmodulin...
March 11, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28280379/amylmetacresol-2-4-dichlorobenzyl-alcohol-hexylresorcinol-or-carrageenan-lozenges-as-active-treatments-for-sore-throat
#12
Martina Morokutti-Kurz, Christine Graf, Eva Prieschl-Grassauer
Up to 80% of sore throats are caused by viruses. Several over the counter products are available which provide symptomatic, not causal relief. For such lozenges, containing the antiseptics and local anesthetics amylmetacresol (AMC) and 2,4-dichlorobenzyl alcohol (DCBA) or hexylresorcinol (HR), recently an additional virucidal effect was published. Therefore, we tested a set of Strepsils(®) lozenges, containing either HR (Max [#2]) or AMC/DCBA (Original [#3], Extra Strong [#4], Warm [#5], Orange and Vitamin C [#6], Sugar free Lemon [#7], Children/Strawberry [#8] and Soothing Honey and Lemon [#9]) for their antiviral efficiency against representatives of respiratory viruses known to cause sore throat: human rhinovirus (HRV) 1a, HRV8, influenza virus A H1N1n, Coxsackievirus A10, and human coronavirus (hCoV) OC43...
2017: International Journal of General Medicine
https://www.readbyqxmd.com/read/28278635/secondary-metabolites-from-the-endophytic-fungus-talaromyces-pinophilus
#13
F Vinale, R Nicoletti, F Lacatena, R Marra, A Sacco, N Lombardi, G d'Errico, M C Digilio, M Lorito, S L Woo
Endophytic fungi have a great influence on plant health and growth, and are an important source of bioactive natural compounds. Organic extracts obtained from the culture filtrate of an endophytic strain of Talaromyces pinophilus isolated from strawberry tree (Arbutus unedo) were studied. Metabolomic analysis revealed the presence of three bioactive metabolites, the siderophore ferrirubin, the platelet-aggregation inhibitor herquline B and the antibiotic 3-O-methylfunicone. The latter was the major metabolite produced by this strain and displayed toxic effects against the pea aphid Acyrthosiphon pisum (Homoptera Aphidiidae)...
February 28, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28276271/an-anthocyanin-enriched-extract-from-strawberries-delays-disease-onset-and-extends-survival-in-the-hsod1-g93a-mouse-model-of-amyotrophic-lateral-sclerosis
#14
Aimee N Winter, Erika K Ross, Heather M Wilkins, Trisha R Stankiewicz, Tyler Wallace, Keith Miller, Daniel A Linseman
OBJECTIVE: Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease resulting from the death of motor neurons in the brain, brain stem, and spinal cord. Several processes such as oxidative stress, neuroinflammation, and neuronal apoptosis, contribute to disease progression. Anthocyanins are flavonoid compounds derived from fruits and vegetables that possess antioxidant, anti-inflammatory, and anti-apoptotic abilities. Thus, these unique compounds may provide therapeutic benefit for the treatment of ALS...
March 9, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28239870/genotype-by-environment-effect-on-bioactive-compounds-in-strawberry-fragaria-x-ananassa-duch
#15
Luisa Palmieri, Domenico Masuero, Paolo Martinatti, Giuseppe Baratto, Stefan Martens, Urska Vrhovsek
BACKGROUND: The relative contribute assessment of the genotype, the environment and the genotype-by-environmental (G x E) interaction to the variety performance is necessary to determine their adaptation capacity. RESULTS: The influence of temperature, UV-irradiation and sunshine duration on quality and fruits composition was investigated in nine strawberry cultivars grown at three different altitudes. The UV-radiation intensity affected the pH and the sugar content that were higher for most of the varieties at low altitudes where the total titratable acidity (TTA) was less...
February 27, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28238407/three-dimensional-strawberry-tattoo
#16
A Imbernón-Moya, E Fernández-Cogolludo, M Á Gallego-Valdés
No abstract text is available yet for this article.
February 23, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28235878/botrytis-fragariae-a-new-species-causing-gray-mold-on-strawberries-shows-high-frequencies-of-specific-and-efflux-based-fungicide-resistance
#17
Sabrina Rupp, Cecilia Plesken, Sibylle Rumsey, Madeline Dowling, Guido Schnabel, Roland W S Weber, Matthias Hahn
Botrytis cinerea causes pre- and postharvest decay of many fruit and vegetable crops. A survey in German strawberry fields revealed Botrytis strains that differed from B. cinerea in diagnostic PCR markers and growth appearance. Phylogenetic analyses showed these strains to belong to an undescribed species in Botrytis clade 2, named Botrytis fragariae sp. nov. Isolates of B. fragariae were detected in strawberry fields throughout Germany, sometimes at similar frequencies as B. cinerea, and in the Southeastern United States...
February 24, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28224919/characteristics-and-regulatory-pathway-of-the-prupesep1-sepallata-gene-during-ripening-and-softening-in-peach-fruits
#18
Jinjin Li, Fang Li, Ming Qian, Mingyu Han, Hangkong Liu, Dong Zhang, Juanjuan Ma, Caiping Zhao
SEPALLATA genes are members of a subfamily of MADS-box transcription factors, and have essential roles in floral organ development and fruit ripening. In this study, the PrupeSEP1 gene was cloned from peach flesh. Its deduced amino acid sequence was very similar to that of MdMADS8 and MdMADS9 in apple and MADS-RIN-like in strawberry. During storage of melting flesh (MF) peach, the pattern of SEP1 expression was similar to that of ethylene biosynthesis and ethylene signal transduction-related gene expression (EIN2 and ETR2)...
April 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28221934/effect-of-process-temperature-on-virus-inactivation-during-high-hydrostatic-pressure-processing-of-contaminated-fruit-puree-and-juice
#19
Hao Pan, Matthew Buenconsejo, Karl F Reineke, Y Carol Shieh
High pressure processing (HPP) can inactivate pathogens and retain fruit qualities. Elevated HPP pressure or time increases virus inactivation, but the effect of temperature is not consistently observed for norovirus and hepatitis A virus. In the present study, the effectiveness of HPP holding temperatures (<40°C) and pressures were evaluated for inactivating surrogates (murine norovirus [MNV] and MS2 coliphage) in pomegranate and strawberry juices and strawberry puree using a 24-liter HPP system. The holding temperature was established by setting the HPP initial temperature via pretrials...
September 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28220503/physicochemical-and-sensory-properties-of-marmalades-made-from-mixtures-of-fruits-and-under-exploited-andean-tubers
#20
Agustina M Lotufo Haddad, María Isabel Margalef, Margarita Armada, María Cristina Goldner
BACKGROUND: This work studies the added value to the Andean tuber crops through the production of jams. OBJECTIVES: 1. to study the sensory and instrumental characteristics of dietetic marmalades made with fruits and Andean tubers, 2. to research consumer's acceptability and emotional responses, 3. to assess the relationship between sensory and instrumental variables, and 4. to determine sensory, instrumental and emotional variables that influence the acceptability...
February 20, 2017: Journal of the Science of Food and Agriculture
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