Climate change and population growth are putting increasing pressure on global food security. The development of high-yielding varieties for important crops such as wheat is crucial to meet these challenges. The basis for this is extensive exploitation of beneficial genetic variation resting in genebanks around the world. Selecting suitable donor genotypes from the vast number of wheat accessions stored in genebanks is a difficult task and depends critically on the density of information on the performance of individual accessions. Therefore, this study aimed to access phenotypic data from the Czech genebank, storing over 13,000 wheat accessions. We curated and analyzed data on heading date, plant height, and thousand grain weight for more than one-third of all available accessions regenerated across 70 years. The data underwent analysis using a linear mixed model, revealing high quality of curated data with heritability reaching 99%. The raw data, but also derived data such as the best linear unbiased estimations, are now available for the wheat collection of the Czech genebank for research and breeding.
- MeSH
- fenotyp * MeSH
- genetická variace MeSH
- genotyp MeSH
- pšenice * genetika MeSH
- šlechtění rostlin * MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Česká republika MeSH
Wheat-dependent exercise-induced anaphylaxis (WDEIA) is a rare but potentially serious food allergy in which anaphylaxis develops if food containing wheat is consumed within 4 hours before or shortly after physical activity. While its consumption is tolerated by the patient under other circumstances. In addition to physical exertion, some other cofactors can contribute to its development.
- MeSH
- alergie na pšenici diagnóza etiologie patofyziologie prevence a kontrola MeSH
- alergie vyvolané cvičením * diagnóza etiologie patofyziologie prevence a kontrola MeSH
- antihistaminika terapeutické užití MeSH
- kožní testy MeSH
- lidé MeSH
- mladiství MeSH
- pšenice škodlivé účinky MeSH
- turistika MeSH
- Check Tag
- lidé MeSH
- mladiství MeSH
- ženské pohlaví MeSH
- Publikační typ
- kazuistiky MeSH
Anafylaxe po potravině vyvolaná fyzickou námahou je podtypem námahou indukované anafylaxe, ke které dochází pouze po požití potraviny. Nejčastější příčinnou potravinou je pšenice, konkrétně bílkovina Tri a 19 (omega-5 gliadin), reakci ale může vyvolat i lipid transfer protein nebo glutenin s vysokou molekulární hmotností a další. Nelze opomíjet možnou roli dalších kofaktorů (např. alkohol nebo nesteroidní protizánětlivé léky) podílejících se na rozvoji reakce. Představujeme případ muže, který byl k alergologickému vyšetření odeslán po anafylaktické reakci, kdy byla jako spouštěcí alergen podezírána meruňková marmeláda. Důsledná anamnéza vedla k suspekci na námahou indukovanou anafylaxi po požití pšenice, laboratorní vyšetření diagnózu potvrdilo.
Food-dependent exercise-induced anaphylaxis is a type of exercise-induced anaphylaxis that occurs only after ingestion of food. The most com- mon causative food is wheat, specifically protein Tri a 19 (omega-5 gliadin), however the reaction can also be triggered by lipid transfer protein or glutenin with a high molecular weight and others. The possible role of other cofactors (e.g. alcohol or non-steroidal anti-inflammatory drugs) involved in the development of the reaction cannot be omitted. We present a case of a man who was referred for allergological examination after an anaphylactic reaction where apricot marmalade was suspected as the triggering allergen. A more thorough medical history led to a suspicion of wheat-dependent exercise-induced anaphylaxis, which was confirmed by laboratory tests.
- Klíčová slova
- Tri a 19,
- MeSH
- alergie vyvolané cvičením etiologie klasifikace komplikace MeSH
- anafylaxe * diagnóza etiologie imunologie MeSH
- gliadin imunologie klasifikace MeSH
- lidé středního věku MeSH
- lidé MeSH
- potravinová alergie imunologie komplikace MeSH
- pšenice * imunologie škodlivé účinky MeSH
- tělesná námaha imunologie MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- Publikační typ
- kazuistiky MeSH
Pleurotus ostreatus was cultivated on a commercially available wheat straw substrate enriched with Zn and Se. Various amounts of Zn (10, 50, and 100 mg) and Se (1, 5, and 10 mg) in suitable forms ((CH3COO)2Zn·2H2O, Zn(NO3)2·6H2O, and Na2SeO3·5H2O, respectively) were dissolved in 50 ml of deionized water and homogenously nebulized into the substrate block of 2.4 kg weight. The increase in the Zn content in fruiting bodies cultivated on the enriched substrate was relatively low compared with fruiting bodies cultivated on the substrate with no addition at the first flush. The application of different Zn compounds (acetate vs. nitrate) gave similar results. However, the addition of 1 mg of Se into the cultivation substrate block increased the content of Se in fruiting bodies to about 3-6 mg/kg dry matter. This content was one order of magnitude higher compared with the Se content in fruiting bodies harvested from the substrate with no Se addition (< 0.12-0.58 mg/kg dry matter). In the case of the addition of 5 mg of Se, there was a further significant increase in the content of this element to about 40-60 mg/kg dry matter.
- MeSH
- insekticidy aplikace a dávkování farmakologie MeSH
- kontrola škůdců metody MeSH
- nosatcovití * patogenita účinky léků MeSH
- ochrana úrody metody MeSH
- oleje prchavé * aplikace a dávkování farmakologie MeSH
- pšenice MeSH
- rozmarýn MeSH
- statistika jako téma MeSH
- Thymus (rostlina) MeSH
- výzkumné techniky MeSH
- výzkumný projekt MeSH
- Publikační typ
- práce podpořená grantem MeSH
This thorough study analyses the amounts of 43 minerals and trace elements in non-traditional wheat grains, flakes, and undigested flake portions using ICP-MS and establishes declines in their respective contents after the flake production. It also identifies appropriate dietary intakes, in vitro digestibility values, retention factors, and metal pollution indexes. The element contents in wheat flakes are lower than in wheat grains after the hydrothermal treatment process, and their declines are: Na (48-72%), Ce (47-72%), Sr (43-55%), Tl (33-43%), Ti (32-41%), U (31-44%), Ho (29-69%), Cr (26-64%), Zr (26-58%), Ag (25-52%), and Ca (25-46%). The flakes significantly contributed to the recommended dietary intake or adequate intake of particular elements for men of all categories as follows: Mn (143%) > Mo > Cu > Mg ≥ Cr > Fe (16%); for women: Mn (up to 183%) > Mo > Cu > Cr ≥ Mg > Fe (7-16%); for pregnant women aged 19-30: Mn (165%) > Mo > Cu > Mg > Cr (25%); and finally, for lactating women: Mn (127%) > Mo > Cu > Mg > Cr (17%). The contributions to the provisional tolerable weekly or monthly intakes of all toxic elements were established as being within the official limits. The daily intakes for non-essential elements were also calculated. The retention factors were calculated to assess the element concentrations in the undigested part using the digestibility values (87.4-90.5%). The highest retention factors were obtained for V (63-92%), Y (57-96%), Ce (43-76%), Pb (34-58%), Tl (32-70%), Ta (31-66%), and Ge (30-49%). K, Mg, P, Zn, Ba, Bi, Ga, Sb, Cu, Ni, and As appear to be released easily from flake matrices during digestion. The metal pollution index has been confirmed as being lower for non-traditional wheat flakes when compared with grains. Importantly, 15-25% of the metal pollution index assessed for native flakes remains in the undigested flake portion after in vitro digestion.
- MeSH
- kovy analýza MeSH
- laktace MeSH
- lidé MeSH
- minerály analýza MeSH
- přijímání potravy MeSH
- pšenice MeSH
- stopové prvky * analýza MeSH
- těhotenství MeSH
- trávení MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- těhotenství MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
The present work is aimed to hypothesize that fungal endophytes associated with wheat (Triticum aestivum L.) plants can play a variety of roles in biotechnology including plant growth. Out of 67 fungal isolates, five maximum drought-tolerant isolates were used to check their various plant growth-promoting traits, antioxidants, and antifungal activities under secondary screening. Fungal isolate #8TAKS-3a exhibited the maximum drought tolerance capacity and potential to produce auxin, gibberellic acid, ACC deaminase, phosphate, zinc solubilization, ammonia, siderophore, and extracellular enzyme activities followed by #6TAKR-1a isolate. In terms of antioxidant activities, #8TAKS-3a culture also showed maximum DPPH scavenging, total antioxidant, and NO-scavenging activities. However, #6TAKR-1a exhibited maximum total flavonoid content, total phenolic content, and Fe-reducing power and also the highest growth inhibition of Aspergillus niger (ITCC 6152) and Colletotrichum sp. (ITCC 6152). Based on morphological characters and multi-locus phylogenetic analysis of the nuc rDNA internal transcribed spacer region (ITS1-5.8S-ITS2 = ITS), β-tubulin (TUB 2), and RNA polymerase II second largest subunit (RPB2) genes, potent fungal isolate #8TAKS-3a was identified as Talaromyces purpureogenus. Under the in vitro conditions, T. purpureogenus (#8TAKS-3a) was used as a bioinoculant that displayed a significant increase in various physio-biochemical growth parameters under normal and stressed conditions (p < 0.05). Our results indicate that drought stress-tolerant T. purpureogenus can be further used for field testing as a growth promoter.
- MeSH
- antioxidancia MeSH
- endofyty MeSH
- fylogeneze MeSH
- období sucha MeSH
- pšenice MeSH
- semenáček * MeSH
- Talaromyces * genetika MeSH
- Publikační typ
- časopisecké články MeSH
This study aimed to evaluate the impact of widely grown fruits (wild roses, elderberries, sea buckthorns, rowans, chokeberries, and hawthorns) as a functional ingredient in wheat-flour cookie formulation on antioxidative properties with a simultaneous reduction of the carcinogen-like compound acrylamide. The organoleptic features of the cookies were assessed by a panel of consumers. The following parameters were measured: chemical composition, total polyphenols, polyphenolic profile, antioxidant activity, and acrylamide content. The overall ratings of the tested cookies with the addition of chokeberries, hawthorns, sea buckthorns, and elderberries were more than satisfactory, while wild rose and rowan cookies were the most widely accepted and best rated by the panelists. The antioxidant activity of the tested cookies was 1.1-15.22 μmol trolox·g-1 dm and 2.46-26.12 μmol Fe (II)·g-1 dm as measured by the ABTS and FRAP methods, respectively. All the fruit-enriched cookies had significantly higher antioxidative properties (p < 0.05) in comparison to the control cookies, but among the fruit-enriched cookies, there were differences in the quality and quantity of particular polyphenols. The acrylamide content was significantly decreased by 59% (hawthorn), 71% (rowan), 87% (wild rose), 89% (sea buckthorn), 91% (elderberry), and 94% (chokeberry) compared with the control cookies (p < 0.05). Cookies enriched with wild-grown fruits could constitute a promising novel snack food.
