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https://www.readbyqxmd.com/read/28224917/regulation-of-the-wheat-map-kinase-phosphatase-1-by-14-3-3-proteins
#1
Mouna Ghorbel, Valérie Cotelle, Chantal Ebel, Ikram Zaidi, Mélanie Ormancey, Jean-Philippe Galaud, Moez Hanin
Plant MAP kinase phosphatases (MKPs) are major regulators of MAPK signaling pathways and play crucial roles in controlling growth, development and stress responses. The presence of several functional domains in plant MKPs such as a dual specificity phosphatase catalytic domain, gelsolin, calmodulin-binding and serine-rich domains, suggests that MKPs can interact with distinct cellular partners, others than MAPKs. In this report, we identified a canonical mode I 14-3-3-binding motif (574KLPSLP579) located at the carboxy-terminal region of the wheat MKP, TMKP1...
April 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28214728/lipid-signalling-mediated-by-pld-pa-modulates-proline-and-h2o2-levels-in-barley-seedlings-exposed-to-short-and-long-term-chilling-stress
#2
Micaela Peppino Margutti, Matias Reyna, María Verónica Meringer, Graciela E Racagni, Ana Laura Villasuso
Phospholipase D (PLD) hydrolyses phospholipids to yield phosphatidic acid (PA) and a head group, and is involved in responses to a variety of environmental stresses, including chilling and freezing stress. Barley responses to chilling stress (induced by incubating seedlings at 4 °C) are dynamic and the duration of stress, either short (0-180 min) or long-term (24-36 h) had a significant impact on the response. We investigated the roles of PLD/PA in responses of barley (Hordeum vulgare) seedlings to short and long-term chilling stress, based on regulation of proline and reactive oxygen species (ROS) levels...
February 10, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28213323/growth-inhibition-and-efficiency-of-the-antioxidant-system-in-spring-barley-and-common-radish-grown-on-soil-polluted-ionic-liquids-with-iodide-anions
#3
Robert Biczak, Martyna Śnioszek, Arkadiusz Telesiński, Barbara Pawłowska
Ionic liquids (ILs) constitute a huge group of substances that are increasingly common in the commercial use. This situation may lead to the contamination of the soil environment which being the basic of plants vegetation. This paper presents the effect of four ILs with I(-) anion on the growth and development of spring barley (Hordeum vulgare) and common radish (Raphanus sativus L. subvar. radicula Pers) and changes in metabolism of the plants. Seedlings of spring barley and common radish cultivated on soil with increasing ILs concentration exhibited typical phytotoxicity symptoms...
February 14, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28212860/comparative-structure-function-characterization-of-the-saposin-like-domains-from-potato-barley-cardoon-and-arabidopsis-aspartic-proteases
#4
Brian C Bryksa, Douglas A Grahame, Rickey Y Yada
The present study characterized the aspartic protease saposin-like domains of four plant species, Solanum tuberosum (potato), Hordeum vulgare L. (barley), Cynara cardunculus L. (cardoon; artichoke thistle) and Arabidopsis thaliana, in terms of bilayer disruption and fusion, and structure pH-dependence. Comparison of the recombinant saposin-like domains revealed that each induced leakage of bilayer vesicles composed of a simple phospholipid mixture with relative rates Arabidopsis>barley>cardoon>potato...
February 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28204911/selection-of-transformation-efficient-barley-genotypes-based-on-tfa-transformation-amenability-haplotype-and-higher-resolution-mapping-of-the-tfa-loci
#5
Hiroshi Hisano, Brigid Meints, Matthew J Moscou, Luis Cistue, Begoña Echávarri, Kazuhiro Sato, Patrick M Hayes
The genetic substitution of transformation amenability alleles from 'Golden Promise' can facilitate the development of transformation-efficient lines from recalcitrant barley cultivars. Barley (Hordeum vulgare) cv. 'Golden Promise' is one of the most useful and well-studied cultivars for genetic manipulation. In a previous report, we identified several transformation amenability (TFA) loci responsible for Agrobacterium-mediated transformation using the F2 generation of immature embryos, derived from 'Haruna Nijo' × 'Golden Promise,' as explants...
February 15, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28192204/analysis-of-plant-udp-arabinopyranose-mutase-uam-role-of-divalent-metals-and-structure-prediction
#6
Jijin R A Kuttiyatveetil, David A R Sanders
UDP-arabinopyranose mutase (UAM) is a plant enzyme which interconverts UDP-arabinopyranose (UDP-Arap; a six-membered sugar) to UDP-arabinofuranose (UDP-Araf; a five-membered sugar). Plant mutases belong to a small gene family called Reversibly Glycosylated Proteins (RGPs). So far, UAM has been identified in Oryza sativa (Rice), Arabidopsis thaliana and Hordeum vulgare (Barley). The enzyme requires divalent metal ions for catalytic activity. Here, the divalent metal ion dependency of UAMs from O. sativa (rice) and A...
February 9, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28177826/phylogenetic-analysis-of-two-single-copy-nuclear-genes-revealed-origin-and-complex-relationships-of-hordeum-polyploids-in-triticeae-poaceae
#7
Qianni Hu, Genlou Sun
Two single copy nuclear genes, the second largest subunit of RNA polymerase II (RPB2) and thioredoxin-like gene (HTL), were used to explore the phylogeny and origin of polyploid species in Hordeum. Our results were partly in accord with previous studies, but disclosed additional complexity. Both RPB2 and HTL trees confirmed the presence of Xa genome in H. capense and H. secalinum, and that H. depressum originated from H. californicum together with other American diploids, either H. intercedens or H. pusillum...
January 11, 2017: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/28168328/patterns-of-evolutionary-trajectories-and-domestication-history-within-the-genus-hordeum-assessed-by-remap-markers
#8
Georgi Bonchev, Roman Dusinský, Pavol Hauptvogel, Miroslav Švec
The patterns of genetic diversity related to the taxonomy and domestication history of 85 accessions representing the main four species of the genus Hordeum were examined by retrotransposon-microsatellite amplified polymorphism (REMAP) markers based on the retrotransposon BARE-1. A substantial level of genetic polymorphisms at among- and within-species level was observed showing that this retrotransposon family and its adjacent genomic regions has been a target for genome dynamics during the evolution and domestication of barley...
February 6, 2017: Journal of Molecular Evolution
https://www.readbyqxmd.com/read/28167022/differences-in-nutritional-quality-between-wild-and-domesticated-forms-of-barley-and-emmer-wheat
#9
REVIEW
Kim Henrik Hebelstrup
Grasses such as wheat and barley constitute some of the main crops currently cultivated worldwide. Cultivation of wild cereals such as Hordeum spontaneum (wild barley) and Triticum diccocoides (wild emmer) started in southwest Asia. Despite the many studies on the origins of agriculture and plant domestication, surprisingly few studies have discussed the importance of the nutritional quality of barley and emmer wheat in their evolution. A comparison of domesticated forms of these cereals with their wild progenitors suggests an evolution towards bigger grains with higher glycemic loads in the form of higher relative starch content with lower relative protein, fiber and mineral contents...
March 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28160617/reinforcing-plant-evolutionary-genomics-using-ancient-dna
#10
REVIEW
Rafal M Gutaker, Hernán A Burbano
Improved understanding of ancient DNA (aDNA) biochemical properties coupled with application of next generation sequencing (NGS) methods enabled sequencing and authenticating genomes of historical samples. This advancement ignited a revolution in plant evolutionary genomics by allowing direct observations of past molecular diversity. Analyses of genomes sequenced from temporally distributed samples of Gossypium sp., Phytophthora infestans and Arabidopsis thaliana improved our understanding of the evolutionary rates and time scales at which genome remodeling takes place...
February 1, 2017: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/28150529/free-asparagine-and-sugars-profile-of-cereal-species-the-potential-of-cereals-for-acrylamide-formation-in-foods
#11
Slađana Žilić, Dejan Dodig, Zorica Basić, Jelena Vančetović, Primož Titan, Nenad Đurić, Nataša Tolimir
Cereals based food is one of the major source of Maillard reaction products in the diet. Free amino acids and reducing sugars are considered to be the main precursors in the formation of these heat-induced compounds. In order to determine genetic resources with reduced potential for acrylamide formation, the content of sugars, as well as free asparagine were analyzed in a total of 30 cultivars of 10 varieties belonging to eight species (Triticum aestivum var. lutescens, T. aestivum var. alba, T. aestivum var...
February 2, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28145604/comparison-of-the-effect-of-ionic-liquids-containing-hexafluorophosphate-and-trifluoroacetate-anions-on-the-inhibition-of-growth-and-oxidative-stress-in-spring-barley-and-common-radish
#12
Robert Biczak, Barbara Pawłowska, Joanna Feder-Kubis, Arkadiusz Telesiński
Ionic liquids (ILs) are a group of chemical compounds, with chemical properties, which are of great interest to various fields of science and industry. However, commercial use of these substances raises concern as they may threaten the natural ecosystems. This study used two types of (-)-menthol-containing chiral imidazolium ionic liquids (CILs): 1-[(1R,2S,5R)-(-)-menthoxymethyl]-3-methylimidazolium hexafluorophoshate [Im-Men][PF6 ] and 1-[(1R,2S,5R)-(-)-menthoxymethyl]-3-methylimidazolium trifluoroacetate [Im-Men][CF3 CO2 ]...
February 1, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28137844/multiple-horizontal-transfers-of-nuclear-ribosomal-genes-between-phylogenetically-distinct-grass-lineages
#13
Václav Mahelka, Karol Krak, David Kopecký, Judith Fehrer, Jan Šafář, Jan Bartoš, Roman Hobza, Nicolas Blavet, Frank R Blattner
The movement of nuclear DNA from one vascular plant species to another in the absence of fertilization is thought to be rare. Here, nonnative rRNA gene [ribosomal DNA (rDNA)] copies were identified in a set of 16 diploid barley (Hordeum) species; their origin was traceable via their internal transcribed spacer (ITS) sequence to five distinct Panicoideae genera, a lineage that split from the Pooideae about 60 Mya. Phylogenetic, cytogenetic, and genomic analyses implied that the nonnative sequences were acquired between 1 and 5 Mya after a series of multiple events, with the result that some current Hordeum sp...
January 30, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28137705/on-the-allopolyploid-origin-and-genome-structure-of-the-closely-related-species-hordeum-secalinum-and-hordeum-capense-inferred-by-molecular-karyotyping
#14
Ángeles Cuadrado, Alfredo de Bustos, Nicolás Jouve
BACKGROUND AND AIMS: To provide additional information to the many phylogenetic analyses conducted within Hordeum, here the origin and interspecific affinities of the allotetraploids Hordeum secalinum and Hordeum capense were analysed by molecular karyotyping. METHODS: Karyotypes were determined using genomic in situ hybridization (GISH) to distinguish the sub-genomes XA: and I: , plus fluorescence in situ hybridization (FISH)/non-denaturing (ND)-FISH to determine the distribution of ten tandem repetitive DNA sequences and thus provide chromosome markers...
January 30, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28131454/bioavailability-of-phosphorus-other-nutrients-and-potentially-toxic-elements-from-marginal-biomass-derived-biochar-assessed-in-barley-hordeum-vulgare-growth-experiments
#15
Jessica G Shepherd, Wolfram Buss, Saran P Sohi, Kate V Heal
Biochars produced from marginal biomass feedstocks are a potential source of recycled nutrients for agriculture, but may also contain potentially toxic elements (PTEs) which can cause phytotoxicity. We assessed the potential for nutrient recycling from such materials against potential environmental risks in 17 biochars containing high concentrations of various PTEs and nutrients. Methods for investigating the risk of biochar-derived PTEs were developed and assessed. Short-term (21days) growth experiments with barley (Hordeum vulgare) in 5% biochar/sand mixtures were used to present the 'worst-case scenario' of high dose and low pH buffering...
January 25, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28123952/complete-genome-sequence-of-luteibacter-rhizovicinus-strain-lj96t-isolated-from-the-rhizosphere-of-barley-hordeum-vulgare-l-in-denmark
#16
Heidi Udnes Aamot, Ingerd Skow Hofgaard, Erik Lysøe
We present the complete genome sequence of Luteibacter rhizovicinus type strain LJ96T, a yellow-pigmented gammaproteobacterium isolated from the rhizosphere of barley (Hordeum vulgare) Johansen et al. (2005) , a species with numerous potential applications. The genome sequence was deposited to NCBI GenBank with the accession number CP017480.
March 2017: Genomics Data
https://www.readbyqxmd.com/read/28110339/the-effect-of-homoeologous-meiotic-pairing-in-tetraploid-hordeum-bulbosum-l-%C3%A3-h-vulgare-l-hybrids-on-alien-introgressions-in-offspring
#17
Margret Scholz, Galina Pendinen
The pairing behaviour of the individual chromosome arms of Hordeum vulgare (Hv) with their homoeologous arms of H. bulbosum (Hb) at metaphase I of meiosis in tetraploid Hb × Hv hybrids and the frequencies of recombined Hv chromosome arms in selfed offspring were studied on differentially visualized chromosomes after fluorescent in situ hybridisation. The frequencies of paired Hv-Hb arms in the F2 and F3 hybrids were correlated with the frequencies of recombined Hv chromosomes in progenies. Self-generation of hybrids, the number of Hv and Hb chromosomes, and the number of recombined Hv chromosomes of the hybrids strongly influenced the Hv-Hb pairing frequency in meiosis...
2016: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/28105957/identification-of-nuclear-genes-controlling-chlorophyll-synthesis-in%C3%A2-barley-by-rna-seq
#18
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/28092001/genotypic-differences-in-cadmium-transport-in-developing-barley-grains
#19
Li Lin, Fei Chen, Yue Cai, Zhong-Hua Chen, Fangbin Cao
Genotypic differences in cadmium (Cd) transport in developing grains of barley (Hordeum vulgare L.) were investigated using detached ears cultured in a nutrient solution containing 0.5 and 5 μM Cd. Cd concentration in each part of the ear in W6nk2 (a low-grain-Cd-accumulation genotype) was much less than in Zhenong8 (a high accumulator) with 0.5 μM Cd treatment. However, Cd concentration in W6nk2 grains increased with an increase in external Cd level and was similar to Zhenong8 with 5 μM Cd treatment...
January 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28065927/the-composite-water-and-solute-transport-of-barley-hordeum-vulgare-roots-effect-of-suberized-barriers
#20
Kosala Ranathunge, Yangmin X Kim, Friedrich Wassmann, Tino Kreszies, Viktoria Zeisler, Lukas Schreiber
BACKGROUND AND AIMS: Roots have complex anatomical structures, and certain localized cell layers develop suberized apoplastic barriers. The size and tightness of these barriers depend on the growth conditions and on the age of the root. Such complex anatomical structures result in a composite water and solute transport in roots. METHODS: Development of apoplastic barriers along barley seminal roots was detected using various staining methods, and the suberin amounts in the apical and basal zones were analysed using gas chromatography-mass spectometry (GC-MS)...
January 8, 2017: Annals of Botany
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