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https://www.readbyqxmd.com/read/28431559/effects-of-whole-grain-rye-with-and-without-resistant-starch-type-2-supplementation-on-glucose-tolerance-gut-hormones-inflammation-and-appetite-regulation-in-an-11-14-5%C3%A2-hour-perspective-a-randomized-controlled-study-in-healthy-subjects
#1
Jonna C Sandberg, Inger M E Björck, Anne C Nilsson
BACKGROUND: The prevalence of obesity is increasing worldwide and prevention is needed. Whole grain has shown potential to lower the risk of obesity, cardiovascular disease and type 2 diabetes. One possible mechanism behind the benefits of whole grain is the gut fermentation of dietary fiber (DF), e.g. non-starch polysaccharides and resistant starch (RS), in whole grain. The purpose of the study is to investigate the effect of whole grain rye-based products on glucose- and appetite regulation...
April 21, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/28429474/the-influence-of-glu-1-and-glu-3-loci-on-dough-rheology-and-bread-making-properties-in-wheat-t-aestivum-l-doubled-haploid-lines
#2
Monika Langner, Karolina Krystkowiak, Bolesław P Salmanowicz, Tadeusz Adamski, Paweł Krajewski, Zygmunt Kaczmarek, Maria Surma
BACKGROUND: The major determinants of wheat quality are Glu-1 and Glu-3 glutenin loci and environmental factors. Additive effects of alleles at Glu-1 and Glu-3 loci, and their interactions were evaluated for dough rheology and baking properties in four groups of wheat doubled haploid lines differing in HMW-GS and LMW-GS composition. RESULTS: Flour quality, Reomixer, dough extension, Farinograph and baking parameters were determined. Groups of lines with the alleles Glu-A3b and Glu-B3d were characterized by higher values of dough and baking parameters than those with the Glu-A3e and Glu-B3a alleles...
April 21, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28421615/the-effects-of-oat-%C3%AE-glucan-incorporation-on-the-quality-structure-consumer-acceptance-and-glycaemic-response-of-steamed-bread
#3
Lei Wang, Fayin Ye, Liyuan Feng, Fubin Wei, Guohua Zhao
The objective of this study was to evaluate the effects of the incorporation of oat β-glucan (OβG) on the sensory and nutritional quality of steamed bread. Wheat flour was substituted with OβG at levels varying from 0 g/100 g to 5 g/100 g. The results showed that the products containing 1 g/100 g and 3 g/100 g OβG produced a comparable overall consumer acceptance while a significantly lower score was given to the product with 5 g/100 g. Nutritionally, the presence of OβG impeded in vitro starch hydrolysis by amylolytic enzymes...
March 31, 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28420692/an-improved-assembly-and-annotation-of-the-allohexaploid-wheat-genome-identifies-complete-families-of-agronomic-genes-and-provides-genomic-evidence-for-chromosomal-translocations
#4
Bernardo J Clavijo, Luca Venturini, Christian Schudoma, Gonzalo Garcia Accinelli, Gemy Kaithakottil, Jonathan Wright, Philippa Borrill, George Kettleborough, Darren Heavens, Helen Chapman, James Lipscombe, Tom Barker, Fu-Hao Lu, Neil McKenzie, Dina Raats, Ricardo H Ramirez-Gonzalez, Aurore Coince, Ned Peel, Lawrence Percival-Alwyn, Owen Duncan, Josua Trösch, Guotai Yu, Dan M Bolser, Guy Namaati, Arnaud Kerhornou, Manuel Spannagl, Heidrun Gundlach, Georg Haberer, Robert P Davey, Christine Fosker, Federica Di Palma, Andrew Phillips, A Harvey Millar, Paul J Kersey, Cristobal Uauy, Ksenia V Krasileva, David Swarbreck, Michael W Bevan, Matthew D Clark
Advances in genome sequencing and assembly technologies are generating many high-quality genome sequences, but assemblies of large, repeat-rich polyploid genomes, such as that of bread wheat, remain fragmented and incomplete. We have generated a new wheat whole-genome shotgun sequence assembly using a combination of optimized data types and an assembly algorithm designed to deal with large and complex genomes. The new assembly represents >78% of the genome with a scaffold N50 of 88.8 kb that has a high fidelity to the input data...
April 18, 2017: Genome Research
https://www.readbyqxmd.com/read/28419377/gene-tree-reconciliation-with-mul-trees-to-resolve-polyploidy-events
#5
Gregg W C Thomas, S Hussain Ather, Matthew W Hahn
Polyploidy can have a huge impact on the evolution of species, and it is a common occurrence, especially in plants. The two types of polyploids - autopolyploids and allopolyploids - differ in the level of divergence between the genes that are brought together in the new polyploid lineage. Because allopolyploids are formed via hybridization, the homoeologous copies of genes within them are at least as divergent as orthologs in the parental species that came together to form them. This means that common methods for estimating the parental lineages of allopolyploidy events are not accurate, and can lead to incorrect inferences about the number of gene duplications and losses...
April 13, 2017: Systematic Biology
https://www.readbyqxmd.com/read/28417207/impact-of-food-processing-on-rye-product-properties-and-their-in-vitro-digestion
#6
Daniel P Johansson, José L Vázquez Gutiérrez, Rikard Landberg, Marie Alminger, Maud Langton
PURPOSE: Rye products have been reported to elicit postprandial insulin and glucose responses which may be beneficial for prevention of type-2 diabetes. However, mechanisms underlying variations in responses related to processing techniques are not fully understood. METHODS: Five differently processed rye products (sourdough-fermented bread, fermented and unfermented crispbread, extrusion-cooked rye, and porridge) and refined wheat bread were characterised. Two in vitro methods, a dynamic method simulating digestion in the stomach and small intestine and a static method, simulating conditions in the stomach were used to determine viscosity development, structural changes and release of glucose during digestion...
April 17, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28402495/analysis-of-aneuploid-lines-of-bread-wheat-to-map-chromosomal-locations-of-genes-controlling-root-hair-length
#7
Miao Liu, Tina Rathjen, Kumara Weligama, Kerrie Forrest, Matthew Hayden, Emmanuel Delhaize
Background and Aims: Long root hairs enable the efficient uptake of poorly mobile nutrients such as phosphorus. Mapping the chromosomal locations of genes that control root hair length can help exploit the natural variation within crops to develop improved cultivars. Genetic stocks of the wheat cultivar 'Chinese Spring' were used to map genes that control root hair length. Methods: Aneuploid stocks of 'Chinese Spring' were screened using a rapid method based on rhizosheath size and then selected lines were assayed for root hair length to identify chromosomes harbouring genes controlling root hair length...
April 11, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28395827/inhibitory-mechanism-of-quercetin-against-the-formation-of-5-hydroxymethyl-2-furaldehyde-in-buckwheat-flour-bread-by-ultra-performance-liquid-chromatography-coupled-with-high-resolution-tandem-mass-spectrometry
#8
Yinan Zhang, Xiaoning An
Ultra-performance liquid chromatography coupled with high-resolution tandem mass spectrometry (UPLC-HRMS/MS) was employed to investigate the inhibitory mechanism of quercetin against the formation of 5-(hydroxymethyl)-2-furaldehyde (HMF) in buckwheat flour bread. The HMF and HMF precursors (3,4-dideoxyglucosone-3-ene (3,4-DGE), 3-deoxyglucosone (3-DG), or fructofuranosyl cation dehydration products (FCDPs)) adducts of quercetin were detected in buckwheat flour bread, with the trapping of these compounds by quercetin to form corresponding adducts with HMF or its precursors in 1:1, 1:2, 1:3, and 1:4 ratios (where "1" refers to quercetin in all cases)...
May 2017: Food Research International
https://www.readbyqxmd.com/read/28391735/diet-derived-changes-by-sourdough-fermented-rye-bread-in-exhaled-breath-aspiration-ion-mobility-spectrometry-profiles-in-individuals-with-mild-gastrointestinal-symptoms
#9
Kaisa Raninen, Jenni Lappi, Mikko Kolehmainen, Marjukka Kolehmainen, Hannu Mykkänen, Kaisa Poutanen, Olavi Raatikainen
The potential of utilising exhaled breath volatile organic compound (VOC) profiles in studying diet-derived metabolic changes was examined. After a four-week initial diet period with white wheat bread (WW), seven participants received in randomised order high-fibre diets containing sourdough whole grain rye bread (WGR) or white wheat bread enriched with bioprocessed rye bran (WW + BRB), both for 4 weeks. Alveolar exhaled breath samples were analysed with ChemPro(®)100i analyser (Environics OY, Mikkeli, Finland) at the end of each diet period in fasting state and after a standardised meal...
April 9, 2017: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/28383504/starch-characteristics-linked-to-gluten-free-products
#10
REVIEW
Stefan W Horstmann, Kieran M Lynch, Elke K Arendt
The increasing prevalence of coeliac disease (CD) and gluten-related disorders has led to increasing consumer demand for gluten-free products with quality characteristics similar to wheat bread. The replacement of gluten in cereal-based products remains a challenge for scientists, due to its unique role in network formation, which entraps air bubbles. When gluten is removed from a flour, starch is the main component left. Starch is used as gelling, thickening, adhesion, moisture-retention, stabilizing, film forming, texturizing and anti-staling ingredient...
April 6, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28381959/insights-into-tan-spot-and-stem-rust-resistance-and-susceptibility-by-studying-the-pre-green-revolution-global-collection-of-wheat
#11
Sidrat Abdullah, Sunish Kumar Sehgal, Yue Jin, Brent Turnipseed, Shaukat Ali
Tan spot (TS), caused by the fungus Pyrenophora tritici-repentis (Died) Drechs, is an important foliar disease of wheat and has become a threat to world wheat production since the 1970s. In this study a globally diverse pre-1940s collection of 247 wheat genotypes was evaluated against Ptr ToxA, P. tritici-repentis race 1, and stem rust to determine if; (i) acquisition of Ptr ToxA by the P. tritici-repentis from Stagonospora nodorum led to increased pathogen virulence or (ii) incorporation of TS susceptibility during development stem rust resistant cultivars led to an increase in TS epidemics globally...
April 2017: Plant Pathology Journal
https://www.readbyqxmd.com/read/28367622/substrate-limited-saccharomyces-cerevisiae-yeast-strains-allow-control-of-fermentation-during-bread-making
#12
Nore Struyf, Jitka Laurent, Joran Verspreet, Kevin J Verstrepen, Christophe M Courtin
Identification and use of yeast strains that are unable to consume one or more otherwise fermentable substrate types could allow a more controlled fermentation process with more flexibility regarding fermentation times. In this study, Saccharomyces cerevisiae strains with different capacities to consume substrates present in wheat were selected to investigate the impact of substrate limitation on dough fermentation and final bread volume. Results show that fermentation of dough with maltose-negative strains relies on the presence of fructan and sucrose as fermentable substrates and can be used for regular bread making...
April 14, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28367153/pentaploid-wheat-hybrids-applications-characterisation-and-challenges
#13
REVIEW
Sriram Padmanaban, Peng Zhang, Ray A Hare, Mark W Sutherland, Anke Martin
Interspecific hybridisation between hexaploid and tetraploid wheat species leads to the development of F1 pentaploid hybrids with unique chromosomal constitutions. Pentaploid hybrids derived from bread wheat (Triticum aestivum L.) and durum wheat (Triticum turgidum spp. durum Desf.) crosses can improve the genetic background of either parent by transferring traits of interest. The genetic variability derived from bread and durum wheat and transferred into pentaploid hybrids has the potential to improve disease resistance, abiotic tolerance, and grain quality, and to enhance agronomic characters...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28366879/proteomic-insight-into-the-mitigation-of-wheat-root-drought-stress-by-arbuscular-mycorrhizae
#14
Letizia Bernardo, Caterina Morcia, Paolo Carletti, Roberta Ghizzoni, Franz W Badeck, Fulvia Rizza, Luigi Lucini, Valeria Terzi
Arbuscular mycorrhizal fungi (AMF) are plant growth promoters that ameliorate plant-water relations and the nutrient uptake of wheat. In this work, two cultivars of Triticum spp., a bread and a durum wheat, grown under drought stress and inoculated or not by AMF, are evaluated through a shotgun proteomic approach. The AMF association had beneficial effects as compared to non-mycorrhizal roots, in both bread and durum wheat. The beneficial symbiosis was confirmed by measuring morphological and physiological traits...
March 30, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28355304/isolation-and-characterization-of-the-tasnrk2-10-gene-and-its-association-with-agronomic-traits-in-wheat-triticum-aestivum-l
#15
Zhao-Gui Zhang, Guang-de Lv, Bing Li, Jia-Jia Wang, Yan Zhao, Fan-Mei Kong, Ying Guo, Si-Shen Li
Sucrose non-fermenting 1-related protein kinases (SnRKs) comprise a major family of signaling genes in plants and are associated with metabolic regulation, nutrient utilization and stress responses. This gene family has been proposed to be involved in sucrose signaling. In the present study, we cloned three copies of the TaSnRK2.10 gene from bread wheat on chromosomes 4A, 4B and 4D. The coding sequence (CDS) is 1086 bp in length and encodes a protein of 361 amino acids that exhibits functional domains shared with SnRK2s...
2017: PloS One
https://www.readbyqxmd.com/read/28351975/long-noncoding-mirna-gene-represses-wheat-%C3%AE-diketone-waxes
#16
Daiqing Huang, J Allan Feurtado, Mark A Smith, Leah K Flatman, Chushin Koh, Adrian J Cutler
The cuticle of terrestrial plants functions as a protective barrier against many biotic and abiotic stresses. In wheat and other Triticeae, β-diketone waxes are major components of the epicuticular layer leading to the bluish-white glaucous trait in reproductive-age plants. Glaucousness in durum wheat is controlled by a metabolic gene cluster at the WAX1 (W1) locus and a dominant suppressor INHIBITOR of WAX1 (Iw1) on chromosome 2B. The wheat D subgenome from progenitor Aegilops tauschii contains W2 and Iw2 paralogs on chromosome 2D...
April 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28345354/optimization-of-mold-wheat-bread-fortified-with-soy-flour-pea-flour-and-whey-protein-concentrate
#17
Melina Erben, Carlos A Osella
The objective of this work was to study the effect of replacing a selected wheat flour for defatted soy flour, pea flour and whey protein concentrate on both dough rheological characteristics and the performance and nutritional quality of bread. A mixture design was used to analyze the combination of the ingredients. The optimization process suggested that a mixture containing 88.8% of wheat flour, 8.2% of defatted soy flour, 0.0% of pea flour and 3.0% of whey protein concentrate could be a good combination to achieve the best fortified-bread nutritional quality...
January 1, 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/28340469/characterization-and-expression-patterns-of-key-c4-photosynthetic-pathway-genes-in-bread-wheat-triticum-aestivum-l-under-field-conditions
#18
Daoura Goudia Bachir, Iqbal Saeed, Quanhao Song, Tay Zar Linn, Liang Chen, Yin-Gang Hu
Wheat is a C3 plant with relatively low photosynthetic efficiency and is a potential target for C4 photosynthetic pathway engineering. Here we reported the characterization of four key C4 pathway genes and assessed their expression patterns and enzymatic activities at three growth stages in flag leaves of 59 bread wheat genotypes. The C4-like genes homologous to PEPC, NADP-ME, MDH, and PPDK in maize were identified in the A, B, and D sub-genomes of bread wheat, located on the long arms of chromosomes 3 and 5 (TaPEPC), short arms of chromosomes 1 and 3 (TaNADP-ME), long arms of chromosomes 1 and 7 (TaMDH), and long arms of chromosome 1 (TaPPDK), respectively...
March 9, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28337069/detection-of-alien-genetic-introgressions-in-bread-wheat-using-dot-blot-genomic-hybridisation
#19
María-Dolores Rey, Pilar Prieto
Simple, reliable methods for the identification of alien genetic introgressions are required in plant breeding programmes. The use of genomic dot-blot hybridisation allows the detection of small Hordeum chilense genomic introgressions in the descendants of genetic crosses between wheat and H. chilense addition or substitution lines in wheat when molecular markers are difficult to use. Based on genomic in situ hybridisation, DNA samples from wheat lines carrying putatively H. chilense introgressions were immobilised on a membrane, blocked with wheat genomic DNA and hybridised with biotin-labelled H...
2017: Molecular Breeding: New Strategies in Plant Improvement
https://www.readbyqxmd.com/read/28332274/time-course-expression-qtl-atlas-of-the-global-transcriptional-response-of-wheat-to-fusarium-graminearum
#20
Mina Samad-Zamini, Wolfgang Schweiger, Thomas Nussbaumer, Klaus F X Mayer, Hermann Buerstmayr
Fusarium head blight is a devastating disease of small grain cereals such as bread wheat (Triticum aestivum). The pathogen switches from a biotrophic to a nectrotrophic lifestyle in course of disease development forcing its host to adapt its defence strategies. Using a genetical genomics approach we illustrate genome-wide reconfigurations of genetic control over transcript abundances between two decisive time points after inoculation with the causative pathogen Fusarium graminearum. Whole transcriptome measurements have been recorded for 163 lines of a wheat doubled haploid population segregating for several resistance genes yielding 15 552 at 30 hours and 15 888 eQTL at 50 hours after inoculation...
March 23, 2017: Plant Biotechnology Journal
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