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https://www.readbyqxmd.com/read/28224918/remodeling-of-pectin-and-hemicelluloses-in-tomato-pericarp-during-fruit-growth
#1
Fabienne Guillon, Adeline Moïse, Bernard Quemener, Brigitte Bouchet, Marie-Françoise Devaux, Camille Alvarado, Marc Lahaye
Tomato fruit texture depends on histology and cell wall architecture, both under genetic and developmental controls. If ripening related cell wall modifications have been well documented with regard to softening, little is known about cell wall construction during early fruit development. Identification of key events and their kinetics with regard to tissue architecture and cell wall development can provide new insights on early phases of texture elaboration. In this study, changes in pectin and hemicellulose chemical characteristics and location were investigated in the pericarp tissue of tomato (Solanum lycopersicon var Levovil) at four stages of development (7, 14 and 21day after anthesis (DPA) and mature green stages)...
April 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28196350/overexpression-of-the-carbohydrate-binding-module-from-solanum-lycopersicum-expansin-1-sl-exp1-modifies-tomato-fruit-firmness-and-botrytis-cinerea-susceptibility
#2
M A Perini, I N Sin, N M Villarreal, M Marina, A L T Powell, G A Martínez, P M Civello
Firmness, one of the major determinants of postharvest quality and shelf life of fruits is determined by the mechanical resistance imposed by the plant cell wall. Expansins (EXP) are involved in the non-hydrolytic metabolic disassembly of plant cell walls, particularly in processes where relaxation of the wall is necessary, such as fruit development and ripening. As many carbohydrate-associated proteins, expansins have a putative catalytic domain and a carbohydrate-binding module (CBM). Several strategies have been pursued to control the loss of fruit firmness during storage...
February 2, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28195469/effect-of-the-a-type-linkage-on-the-pharmacokinetics-and-intestinal-metabolism-of-litchi-pericarp-oligomeric-procyanidins
#3
Shuyi Li, Yang Liu, Gang Liu, Jingren He, Xinguang Qin, Haochen Yang, Zhongze Hu, Olusola Lamikanra
The bioavailability of A-type procyanidins in vivo has been rarely investigated; as such, this study discusses the effect of A-type linkage and degree of polymerization on the metabolism of procyanidins extracted from litchi pericarp (LPOPC). Sprague-Dawley rats were gavaged with (-)-epicatechin (EC) and LPOPC and sacrificed at different time points after ingestion. A-type linkage procyanidin oligomers inhibited the absorption of EC. Analysis of urinary contents from rats administered with EC, A-type procyanidin dimer (A-2), and A-type procyanidin trimer (A-3) showed distinct native and metabolite profiles for each rat...
February 23, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28193430/hydrogen-peroxide-induced-pericarp-browning-of-harvested-longan-fruit-in-association-with-energy-metabolism
#4
Yifen Lin, Yixiong Lin, Hetong Lin, Mark A Ritenour, John Shi, Shen Zhang, Yihui Chen, Hui Wang
Energy metabolism of "Fuyan" longan fruit treated with hydrogen peroxide (H2O2), the most stable of the reactive oxygen, and its relationship to pericarp browning were investigated in this work. The results displayed that H2O2 significantly decreased contents of adenosine triphosphate (ATP) and adenosine diphosphate (ADP). It also inhibited activities of H(+)-ATPase, Ca(2+)-ATPase and Mg(2+)-ATPase in membranes of plasma, vacuole and mitochondria during the early-storage and mid-storage (except for mitochondrial membrane Mg(2+)-ATPase)...
June 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28148242/exome-qtl-seq-maps-monogenic-locus-and-qtls-in-barley
#5
Hiroshi Hisano, Kazuki Sakamoto, Hiroki Takagi, Ryohei Terauchi, Kazuhiro Sato
BACKGROUND: QTL-seq, in combination with bulked segregant analysis and next-generation sequencing (NGS), is used to identify loci in small plant genomes, but is technically challenging to perform in species with large genomes, such as barley. A combination of exome sequencing and QTL-seq (exome QTL-seq) was used to map the mono-factorial Mendelian locus black lemma and pericarp (Blp) and QTLs for resistance to net blotch disease, a common disease of barley caused by the fungus Pyrenophora teres, which segregated in a population of 100 doubled haploid barley lines...
February 2, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28128839/proanthocyanidins-purified-from-fruit-pericarp-of-clausena-lansium-lour-skeels-as-efficient-tyrosinase-inhibitors-structure-evaluation-inhibitory-activity-and-molecular-mechanism
#6
Wei-Ming Chai, Mei-Zhen Lin, Hui-Ling Feng, Zheng-Rong Zou, Ying-Xia Wang
Fruit pericarp of Clausena lansium (Lour.) Skeels, a food waste, was selected as a raw material for proanthocyanidins. The proanthocyanidins' structures were integrally analyzed using three methods: matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), high performance liquid chromatography electrospray ionization mass spectrometry (HPLC-ESI-MS) and (13)C nuclear magnetic resonance (NMR). The results elucidated that these compounds were composed of prodelphinidin (75%) and procyanidin (25%) with a degree of polymerization (DP) up to the 20-mers...
January 27, 2017: Food & Function
https://www.readbyqxmd.com/read/28123449/enhanced-antibacterial-activity-of-tio2-nanoparticle-surface-modified-with-garcinia-zeylanica-extract
#7
U L N H Senarathna, S S N Fernando, T D C P Gunasekara, M M Weerasekera, H G S P Hewageegana, N D H Arachchi, H D Siriwardena, P M Jayaweera
BACKGROUND: The antibacterial activity of 21 nm TiO2 nanoparticles (NPs) and particles modified with Garcinia zeylanica (G. zeylanica) against Methicillin resistant Staphylococcus aureus was investigated in the presence and absence of light. RESULTS: Surface modification of TiO2 NPs with the adsorption of G. zeylanica extract, causes to shift the absorption edge of TiO2 NPs to higher wavelength. TiO2 NPs, G. zeylanica pericarp extract showed significant bactericidal activity which was further enhanced in contact with the TiO2 modified G...
2017: Chemistry Central Journal
https://www.readbyqxmd.com/read/28117694/wheat-bran-does-not-affect-postprandial-plasma-short-chain-fatty-acids-from-13-c-inulin-fermentation-in-healthy-subjects
#8
Lise Deroover, Joran Verspreet, Anja Luypaerts, Greet Vandermeulen, Christophe M Courtin, Kristin Verbeke
Wheat bran (WB) is a constituent of whole grain products with beneficial effects for human health. Within the human colon, such insoluble particles may be colonized by specific microbial teams which can stimulate cross-feeding, leading to a more efficient carbohydrate fermentation and an increased butyrate production. We investigated the extent to which WB fractions with different properties affect the fermentation of other carbohydrates in the colon. Ten healthy subjects performed four test days, during which they consumed a standard breakfast supplemented with 10 g (13)C-inulin...
January 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28105957/identification-of-nuclear-genes-controlling-chlorophyll-synthesis-in%C3%A2-barley-by-rna-seq
#9
Nickolay A Shmakov, Gennadiy V Vasiliev, Natalya V Shatskaya, Alexey V Doroshkov, Elena I Gordeeva, Dmitry A Afonnikov, Elena K Khlestkina
BACKGROUND: Albinism in plants is characterized by lack of chlorophyll and results in photosynthesis impairment, abnormal plant development and premature death. These abnormalities are frequently encountered in interspecific crosses and tissue culture experiments. Analysis of albino mutant phenotypes with full or partial chlorophyll deficiency can shed light on genetic determinants and molecular mechanisms of albinism. Here we report analysis of RNA-seq transcription profiling of barley (Hordeum vulgare L...
November 16, 2016: BMC Plant Biology
https://www.readbyqxmd.com/read/28087660/the-morphophysiological-dormancy-in-amborella-trichopoda-seeds-is-a-pleisiomorphic-trait-in-angiosperms
#10
Bruno Fogliani, Gildas Gâteblé, Matthieu Villegente, Isabelle Fabre, Nicolas Klein, Nicolas Anger, Carol C Baskin, Charlie P Scutt
BACKGROUND AND AIMS: Recent parsimony-based reconstructions suggest that seeds of early angiosperms had either morphophysiological or physiological dormancy, with the former considered as more probable. The aim of this study was to determine the class of seed dormancy present in Amborella trichopoda, the sole living representative of the most basal angiosperm lineage Amborellales, with a view to resolving fully the class of dormancy present at the base of the angiosperm clade. METHODS: Drupes of A...
January 13, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28063362/production-of-enzymes-by-a-newly-isolated-bacillus-sp-tmf-1-in-solid-state-fermentation-on-agricultural-by-products-the-evaluation-of-substrate-pretreatment-methods
#11
Abdalla Ali Salim, Sanja Grbavčić, Nataša Šekuljica, Andrea Stefanović, Sonja Jakovetić Tanasković, Nevena Luković, Zorica Knežević-Jugović
Study on potential of different agro-industrial waste residues for supporting the growth of newly isolated Bacillus sp. TMF-1 strain under solid-state fermentation (SSF) was conducted aiming to produce several industrially valuable enzymes. Since the feasibility of the initial study was confirmed, further objectives included evaluation of several pretreatments of the studied agricultural by-products (soybean meal, sunflower meal, maize bran, maize pericarp, olive oil cake and wheat bran) on the microbial productivity as means of enhancing the yields of produced proteases, α-amylases, cellulases and pectinases...
March 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28058480/everyman-s-prostate-phantom-kiwi-fruit-substitute-for-human-prostates-at-magnetic-resonance-imaging-diffusion-weighted-imaging-and-magnetic-resonance-spectroscopy
#12
Ullrich G Mueller-Lisse, Sophie Murer, Ulrike L Mueller-Lisse, Marissa Kuhn, Juergen Scheidler, Michael Scherr
OBJECTIVES: To apply an easy-to-assemble phantom substitute for human prostates in T2-weighted magnetic resonance imaging (T2WI), diffusion-weighted imaging (DWI) and 3D magnetic resonance spectroscopy (MRS). METHODS: Kiwi fruit were fixed with gel hot and cold compress packs on two plastic nursery pots, separated by a plastic plate, and submerged in tap water inside a 1-L open-spout plastic watering can for T2WI (TR/TE 7500/101 ms), DWI (5500/61 ms, ADC b50-800 s/mm(2) map) and MRS (940/145 ms) at 3...
January 5, 2017: European Radiology
https://www.readbyqxmd.com/read/28039131/salmonella-persistence-in-tomatoes-requires-a-distinct-set-of-metabolic-functions-identified-by-transposon-insertion-sequencing
#13
Marcos H de Moraes, Prerak Desai, Steffen Porwollik, Rocio Canals, Daniel R Perez, Weiping Chu, Michael McClelland, Max Teplitski
Human enteric pathogens, such as Salmonella spp. and verotoxigenic Escherichia coli, are increasingly recognized as causes of gastroenteritis outbreaks associated with the consumption of fruits and vegetables. Persistence in plants represents an important part of the life cycle of these pathogens. The identification of the full complement of Salmonella genes involved in the colonization of the model plant (tomato) was carried out using transposon insertion sequencing analysis. With this approach, 230,000 transposon insertions were screened in tomato pericarps to identify loci with reduction in fitness, followed by validation of the screen results using competition assays of the isogenic mutants against the wild type...
March 1, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28017996/extraction-of-anthocyanins-from-pericarp-and-lipids-from-seeds-of-mangosteen-garcinia-mangostana-l-by-ultrasound-assisted-extraction-uae-and-evaluation-of-pericarp-extract-enriched-functional-ice-cream
#14
Lawan Hiranrangsee, Kishore K Kumaree, Muhammad Bilal Sadiq, Anil K Anal
Ultrasound-assisted extraction (UAE) was used to extract the anthocyanins from pericarp and lipids from the seeds of mangosteen. The optimum time for extraction of anthocyanin by maceration method and shaking water bath was 6 and 4 h, respectively, whereas, it was 5 min only for ultrasonic assisted extraction method. The anthocyanin content, extracted by UAE, was 23.54 mg Cyn-3-Glu/100 g. The regression equation derived by response surface methodology (RSM), was used to predict the anthocyanin content extracted by using UAE...
October 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/27975991/diol-based-natural-deep-eutectic-solvent-extraction-of-%C3%AE-mangostin-from-the-pericarp-of-garcinia-mangostana
#15
K Mulia, E Krisanti, F Fauzia, S Putri
No abstract text is available yet for this article.
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27960285/new-sweet-tasting-c21-pregnane-glycosides-from-pericarps-of-myriopteron-extensum
#16
Guo Sun, Qin Dai, Hong-Xia Zhang, Zhi-Jian Li, Zhi-Zhi Du
Ten novel C21 pregnane glycosides, extensumside C-L (1-10), were isolated as highly sweet-tasting substances from the edible pericarps of Myriopteron extensum (Wight) K. Schum by sensory-guided fractionation and purification. Their structures were determined through 1D and 2D NMR, such as HSQC, HMBC, (1)H-(1)H COSY, HSQC-TOCSY, and ROESY, as well as other spectroscopic analysis combined with chemical evidence. These compounds shared the same aglycone, 3β,16α-dihydroxy-pregn-5-en-20-one, and contained the deoxysugar chain and the glucose chain which were linked to C-3 and C-16 of the aglycone, respectively...
December 14, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27957804/in-depth-characterization-of-the-tomato-fruit-pericarp-proteome
#17
Clara I Mata, Bertrand Fabre, Maarten L A T M Hertog, Harriet T Parsons, Michael J Deery, Kathryn S Lilley, Bart M Nicolaï
Since the genome of Solanum lycopersicum L. was published in 2012, some studies have explored its proteome although with a limited depth. In this work, we present an extended characterization of the proteome of the tomato pericarp at its ripe red stage. Fractionation of tryptic peptides generated from pericarp proteins by off-line high-pH reverse-phase phase chromatography in combination with LC-MS/MS analysis on a Fisher Scientific Q Exactive and a Sciex Triple-TOF 6600 resulted in the identification of 8588 proteins with a 1% FDR both at the peptide and protein levels...
January 2017: Proteomics
https://www.readbyqxmd.com/read/27927995/the-biomechanics-of-seed-germination
#18
REVIEW
Tina Steinbrecher, Gerhard Leubner-Metzger
From a biomechanical perspective, the completion of seed (and fruit) germination depends on the balance of two opposing forces: the growth potential of the embryonic axis (radicle-hypocotyl growth zone) and the restraint of the seed-covering layers (endosperm, testa, and pericarp). The diverse seed tissues are composite materials which differ in their dynamic properties based on their distinct cell wall composition and water uptake capacities. The biomechanics of embryo cell growth during seed germination depend on irreversible cell wall loosening followed by water uptake due to the decreasing turgor, and this leads to embryo elongation and eventually radicle emergence...
December 7, 2016: Journal of Experimental Botany
https://www.readbyqxmd.com/read/27904399/identification-of-alleles-of-puroindoline-genes-and-their-effect-on-wheat-triticum-aestivum-l-grain-texture
#19
Mária Presinszká, Klára Štiasna, Tomáš Vyhnánek, Václav Trojan, Eva Mrkvicová, Luděk Hřivna, Ladislav Havel
Grain hardness is one of the most important quality characteristics of wheat (Triticum aestivum L.). It is a significant property of wheat grains and relates to milling quality and end product quality. Grain hardness is caused by the presence of puroindoline genes (Pina and Pinb). A collection of 25 genotypes of wheat with unusual grain colour (blue aleurone, purple and white pericarp, yellow endosperm) was studied by polymerase chain reaction (PCR) for the diversity within Pina and Pinb (alleles: Pina-D1a, Pina-D1b, Pinb-D1a, Pinb- -D1b, Pinb-D1c and Pinb-D1d)...
March 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27899047/phytochemicals-and-antioxidant-capacity-in-four-italian-traditional-maize-zea-mays-l-varieties
#20
Antonella Capocchi, Stefania Bottega, Carmelina Spanò, Debora Fontanini
Flours of four pigmented (from orange to red and dark red) local Italian corns, studied for their soluble, soluble conjugate, and insoluble-bound phenols and flavonoids, showed a prevalence of the insoluble-bound fraction (70-80%). Correlations were found between the flours antioxidant capacity, measured with CUPRAC, FRAP, and DPPH methods, and soluble phenols and flavonoids content. A correlation was also found between ascorbic acid content and flours antioxidant power. Anthocyanins were present in small amounts in the red/dark red seeds; however, acid-alcohol assays and spectral analyses of pericarp extracts indicated the presence of red-brick phlobaphenes in these varieties...
November 29, 2016: International Journal of Food Sciences and Nutrition
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