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https://www.readbyqxmd.com/read/28339688/an-activity-staining-method-on-filtration-paper-enables-high-throughput-screening-of-temperature-sensitive-and-inactive-mutations-of-rice-%C3%AE-amylase-for-improvement-of-rice-grain-quality
#1
Hiromoto Yamakawa, Rieko Hirai-Kimura, Yuriko Nakata, Masaru Nakata, Masaharu Kuroda, Takeshi Yamaguchi
α-Amylase is a starch-hydrolyzing enzyme (EC 3.2.1.1) indispensable for germination of cereal seeds, but it is also expressed during the ripening stage. Previous studies demonstrated that the enzyme is activated in developing rice seeds under extremely hot weather and triggers a loss of grain quality by hindering the accumulation of storage starch in the endosperm. Since inactive or, preferably, heat-labile α-amylases are preferable for breeding premium rice, we developed a method for rapid screening of inactive and temperature-sensitive mutants of the enzyme by combining the random mutagenesis by error-prone PCR and an on-filter activity test of the recombinant enzyme expressed by Escherichia coli...
February 21, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28339160/biofortification-of-riboflavin-and-folate-in-idli-batter-based-on-fermented-cereal-and-pulse-by-lactococcus-lactis-n8-and-saccharomyces-boulardii-saa655-in-idli-batter
#2
Suresh Chander C R, Bhawani Chamlagain, Susanna Kariluoto, Vieno Piironen, Per E J Saris
AIMS: Lactococcus lactis N8 and Saccharomyces boulardii SAA655 were investigated for their ability to synthesize B- vitamins (riboflavin and folate) and their functional role as microbial starters in idli fermentation. METHODS AND RESULTS: In this study, ultra-high performance liquid chromatography (UHPLC) and microbiological assay were used to determine the total riboflavin and folate content, respectively. Increased levels of folate were evident in both L. lactis N8 and S...
March 24, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28339058/toenail-selenium-as-an-indicator-of-environmental-exposure-a-cross-sectional-study
#3
Tommaso Filippini, Angela Ferrari, Bernhard Michalke, Peter Grill, Luciano Vescovi, Chiara Salvia, Carlotta Malagoli, Marcella Malavolti, Sabina Sieri, Vittorio Krogh, Annalisa Bargellini, Antonio Martino, Margherita Ferrante, Marco Vinceti
The relation between toxicity and essentiality of selenium (Se) is of growing interest in human health, as the effects may widely differ depending of its different chemical species and the exposure levels. Toenail Se has been proposed as a reliable biomarker of long-term Se exposure, but few studies investigated the correlation between its toenail content and environmental determinants (i.e., dietary food intake). We aimed to determine the relation of toenail Se levels with serum Se species as well as food items...
March 24, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28338945/genetic-variation-in-traits-for-nitrogen-use-efficiency-in-wheat
#4
Malcolm J Hawkesford
Crop nutrient and especially nitrogen use efficiency (NUE) is both an economically and an environmentally highly desirable trait. It has been estimated that only a third of nitrogen inputs to cereal crop worldwide are recovered in grain for consumption, resulting in a huge waste of resource with major negative impacts on the environment. Most measures of NUE in wheat and other cereals are based on field assessments of crop yields at given N inputs, performance responses to added N fertilizer, or by quantifying N fertilizer recovery rates...
March 13, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28338859/the-healthy-nordic-diet-predicts-muscle-strength-10-years-later-in-old-women-but-not-old-men
#5
Mia-Maria Perälä, Mikaela B von Bonsdorff, Satu Männistö, Minna K Salonen, Mika Simonen, Noora Kanerva, Taina Rantanen, Pertti Pohjolainen, Johan G Eriksson
Background: a number of nutrients have been found to be associated with better muscle strength and mass; however, the role of the whole diet on muscle strength and mass remains still unknown. Objective: to examine whether the healthy Nordic diet predicts muscle strength, and mass 10 years later among men and women. Methods: about 1,072 participants belong to the Helsinki Birth Cohort Study, born 1934-44. Diet was assessed with a validated food-frequency questionnaire during 2001-04...
March 10, 2017: Age and Ageing
https://www.readbyqxmd.com/read/28338063/greater-postprandial-glucose-excursions-and-inadequate-nutrient-intake-in-youth-with-type-1-diabetes-and-celiac-disease
#6
Anna Pham-Short, Kim C Donaghue, Geoffrey Ambler, Sarah Garnett, Maria E Craig
The gluten free diet (GFD) has a high glycemic index and low-fiber content, which potentially influences glycemic excursions in type 1 diabetes (T1D) and celiac disease (CD). Participants in this case-control study of youth with T1D+CD (n = 10) and T1D only (n = 7) wore blinded continuous glucose monitoring systems for six days. Blood glucose levels (BGLs) were compared between groups for each meal, including pre-meal, peak, 2-hour postprandial and time-to-peak. Participants consumed a test-breakfast of GF cereal and milk for three days and kept weighed food diaries; nutrient intake was analyzed and compared to national recommendations...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337069/detection-of-alien-genetic-introgressions-in-bread-wheat-using-dot-blot-genomic-hybridisation
#7
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/28336467/an-evaluation-of-portion-size-estimation-aids-consumer-perspectives-on-their-effectiveness
#8
Gemma P Faulkner, M Barbara E Livingstone, L Kirsty Pourshahidi, Michelle Spence, Moira Dean, Sinead O'Brien, Eileen R Gibney, Julie M W Wallace, Tracy A McCaffrey, Maeve A Kerr
OBJECTIVE: This qualitative study aimed to investigate consumer opinions on the usefulness of portion size estimation aids (PSEA); consumer preferences in terms of format and context for use; and the level of detail of guidance considered necessary for the effective application of PSEA. DESIGN: Six focus groups (three to eight participants per group) were conducted to elicit views on PSEA. The discussions were recorded, transcribed verbatim and analysed by two independent researchers using a template approach...
March 20, 2017: Appetite
https://www.readbyqxmd.com/read/28335441/dietary-intake-of-individual-free-and-intrinsic-sugars-and-food-sources-in-the-spanish-population-findings-from-the-anibes-study
#9
Emma Ruiz, Paula Rodriguez, Teresa Valero, José M Ávila, Javier Aranceta-Bartrina, Ángel Gil, Marcela González-Gross, Rosa M Ortega, Lluis Serra-Majem, Gregorio Varela-Moreiras
The consumption of total and individual sugars is controversial and little is known about consumption and dietary sources in Spain. The purpose was to examine free and intrinsic sugar intake and food and beverage sources. The ANIBES Study (Anthropometry, Intake and Energy Balance in Spain), a cross-sectional study of a representative sample of the Spanish population (9-75 years old; n = 2009) carried out in 2013, was used. Food and beverage records were obtained by a three-day dietary record by using a tablet device...
March 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28334872/hplc-dad-fld-method-for-simultaneous-determination-of-mycotoxins-in-wheat-bran
#10
Maria N Irakli, Adriana Skendi, Maria D Papageorgiou
Aflatoxins, deoxynivalenol, ochratoxin A and zearalenone are the most important mycotoxins that everyone on its own, in groups or simultaneously contaminate cereals. The external layers of cereal grains (bran) apart from health promoting ingredients are also the most contaminated part with reference to mycotoxin's presence. Therefore, consumption of a high fiber wheat-based diet represent an increased risk to consumer's health. The objective of this study was to develop a simple and reliable high performance liquid chromatography method for the simultaneous determination of these mycotoxins in wheat bran (WB)...
March 18, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28333903/-evaluation-of-oro-cecal-transit-time-in-patients-with-irritable-bowel-syndrome-with-cereal-products-intolerance
#11
Aleksandra Błońska, Paulina Konrad, Jan Chojnacki, Cezary Chojnacki
The main symptoms of irritable bowel syndrome (IBS) include abnormal frequency of bowel movements. On this basis, three main clinical types of the disease have been distinguished, i.e.: constipation (IBSC), diarrhea (IBS-D) and mixed-type (IBS-M) in accordance with the Rome III criteria. These disorders mainly affect the colon, but symptoms related to upper gastrointestinal tract are also often observed. AIM: The aim of the study was to assess the oro-caecal transit time in patients with irritable bowel syndrome with IgG-dependent hypersensitivity to cereal products...
March 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28333357/dietary-patterns-foods-and-nutrients-in-male-fertility-parameters-and-fecundability-a-systematic-review-of-observational-studies
#12
Albert Salas-Huetos, Mònica Bulló, Jordi Salas-Salvadó
BACKGROUND: Infertility is a global public health issue, affecting 15% of all couples of reproductive age. Male factors, including decreased semen quality, are responsible for ~25% of these cases. The dietary pattern, the components of the diet and nutrients have been studied as possible determinants of sperm function and/or fertility. OBJECTIVE AND RATIONALE: Previous systematic reviews have been made of the few heterogeneous low-quality randomized clinical trials (RCTs) conducted in small samples of participants and investigating the effect of specific nutrients and nutritional supplements on male infertility...
March 10, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28333086/the-effect-of-a-breakfast-rich-in-slowly-digestible-starch-on-glucose-metabolism-a-statistical-meta-analysis-of-randomized-controlled-trials
#13
REVIEW
Sophie Vinoy, Alexandra Meynier, Aurélie Goux, Nathalie Jourdan-Salloum, Sylvie Normand, Rémi Rabasa-Lhoret, Olivier Brack, Julie-Anne Nazare, François Péronnet, Martine Laville
Starch digestibility may have an effect on the postprandial blood glucose profile. The aim of this meta-analysis was to analyze the relationship between Slowly Digestible Starch (SDS) levels and plasma glucose appearance and disappearance rates, as well as other parameters of glucose metabolism, after healthy subjects consumed cereal products that differed in SDS content. Three randomized controlled clinical trials that included a total of 79 subjects were identified. Using binary classification for the variables (high versus low levels, more than 12 g of SDS per portion, and less than 1 g of SDS per portion, respectively), we found that there was a 15-fold higher chance of having a low rate of appearance of exogenous glucose (RaE) after consumption of a high-SDS product...
March 23, 2017: Nutrients
https://www.readbyqxmd.com/read/28332416/predicting-deoxynivalenol-in-oats-under-conditions-representing-scandinavian-production-regions
#14
Tomas Persson, Henrik Eckersten, Oleif Elen, Anne-Grete Roer Hjelkrem, Joel Markgren, Mats Söderström, Thomas Börjesson
Deoxynivalenol (DON) in cereals, produced by Fusarium fungi, cause poisoning in humans and animals. Fusarium infections in cereals are favoured by humid conditions. Host species are susceptible mainly during the anthesis stage. Infections are also positively correlated with a regional history of Fusarium infections, frequent cereal production and non-tillage field management practices. Here, previously developed process-based models based on relative air humidity, rain and temperature conditions, Fusarium sporulation, host phenology and mycelium growth in host tissue were adapted and tested on oats...
March 23, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28332302/protein-bodies-how-the-er-deals-with-high-accumulation-of-recombinant-proteins
#15
Reza Saberianfar, Rima Menassa
Protein bodies (PBs) are highly specialized protein storage organelles in cereal seeds. PB formation in seeds initiates in the endoplasmic reticulum (ER), and depending on the plant species, PBs remain in the ER or find their way out of the ER, bypass the Golgi and end up in protein storage vacuoles (PSVs) (Khan et al., 2012). Protein bodies have been ectopically induced in leaves by producing high amounts of ER-retrieved recombinant proteins, usually by fusing them to protein tags such as Zera(®) , elastin-like polypeptide (ELP) and hydrophobin-I (HFBI)...
March 23, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28332274/time-course-expression-qtl-atlas-of-the-global-transcriptional-response-of-wheat-to-fusarium-graminearum
#16
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
https://www.readbyqxmd.com/read/28331551/environmental-costs-and-benefits-of-growing-miscanthus-for-bioenergy-in-the-uk
#17
REVIEW
Jon P McCalmont, Astley Hastings, Niall P McNamara, Goetz M Richter, Paul Robson, Iain S Donnison, John Clifton-Brown
Planting the perennial biomass crop Miscanthus in the UK could offset 2-13 Mt oil eq. yr(-1), contributing up to 10% of current energy use. Policymakers need assurance that upscaling Miscanthus production can be performed sustainably without negatively impacting essential food production or the wider environment. This study reviews a large body of Miscanthus relevant literature into concise summary statements. Perennial Miscanthus has energy output/input ratios 10 times higher (47.3 ± 2.2) than annual crops used for energy (4...
March 2017: Global Change Biology. Bioenergy
https://www.readbyqxmd.com/read/28330127/diversity-of-toxic-and-phytopathogenic-fusarium-species-occurring-on-cereals-grown-in-karnataka-state-india
#18
H Nagaraja, G Chennappa, K Poorna Chandra Rao, G Mahadev Prasad, M Y Sreenivasa
A total of 198 cereal samples (53 maize, 54 sorghum, 37 paddy and 54 wheat) were collected from 11 districts of Karnataka to understand the percent infection (PI), relative density (RD) and their frequency (Fr) caused by Fusarium spp. All samples were screened by agar plating method using MGA 2.5 agar media and incubated at 25 ± 2 °C for 3-5 days. The study revealed the association of 10 different Fusarium species known trichothecene producers such as Fusarium acuminatum, F. avenaceum, F. crookwellense, F...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28327566/wholegrain-rye-but-not-wholegrain-wheat-lowers-body-weight-and-fat-mass-compared-with-refined-wheat-a-6-week-randomized-study
#19
J Suhr, S Vuholm, K N Iversen, R Landberg, M Kristensen
BACKGROUND: Observational studies suggest inverse associations between wholegrain intake and body weight gain. Only few controlled intervention studies have supported this association and few compare effects of different grain varieties. OBJECTIVE: To investigate how wholegrain wheat (WGW) and rye compared with refined wheat (RW) affect body weight and composition and appetite sensation. DESIGN: Seventy overweight/obese adults participated in this 6-week randomized parallel study, in which they replaced their habitual cereal foods with RW, WGW or wholegrain rye (WGR)...
March 22, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28326091/generation-of-high-amylose-rice-through-crispr-cas9-mediated-targeted-mutagenesis-of-starch-branching-enzymes
#20
Yongwei Sun, Guiai Jiao, Zupei Liu, Xin Zhang, Jingying Li, Xiuping Guo, Wenming Du, Jinlu Du, Frédéric Francis, Yunde Zhao, Lanqin Xia
Cereals high in amylose content (AC) and resistant starch (RS) offer potential health benefits. Previous studies using chemical mutagenesis or RNA interference have demonstrated that starch branching enzyme (SBE) plays a major role in determining the fine structure and physical properties of starch. However, it remains a challenge to control starch branching in commercial lines. Here, we use CRISPR/Cas9 technology to generate targeted mutagenesis in SBEI and SBEIIb in rice. The frequencies of obtained homozygous or bi-allelic mutant lines with indels in SBEI and SBEIIb in T0 generation were from 26...
2017: Frontiers in Plant Science
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