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https://www.readbyqxmd.com/read/28655216/phenotypic-and-genomic-survey-on-organic-acid-utilization-profile-of-pseudomonas-mendocina-strain-s5-2-a-vineyard-soil-isolate
#1
Teik Min Chong, Jian-Woon Chen, Wah-Seng See-Too, Choo-Yee Yu, Geik-Yong Ang, Yan Lue Lim, Wai-Fong Yin, Catherine Grandclément, Denis Faure, Yves Dessaux, Kok-Gan Chan
Root exudates are chemical compounds that are released from living plant roots and provide significant energy, carbon, nitrogen and phosphorus sources for microbes inhabiting the rhizosphere. The exudates shape the microflora associated with the plant, as well as influences the plant health and productivity. Therefore, a better understanding of the trophic link that is established between the plant and the associated bacteria is necessary. In this study, a comprehensive survey on the utilization of grapevine and rootstock related organic acids were conducted on a vineyard soil isolate which is Pseudomonas mendocina strain S5...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28654760/gametocidal-genes-of-aegilops-segregation-distorters-in-wheat-aegilops-wide-hybridization
#2
M Niranjana
Aegilops is a genus belonging to the Poaceace family which have played indispensible role in the evolution of bread wheat and continues to do so by transferring genes by wide hybridization. Being the secondary genepool of wheat, gene transfer from Aegilops poses difficulties and segregation distortion is common. Gametocidal genes are the most well characterized class of segregation distorters reported in interspecific crosses of wheat with Aegilops. These are selfish genetic elements which ensure their preferential transmission to progeny at the cost of gametes lacking them without providing any phenotypic benefits to the plant causing a proportional reduction in fertility...
June 27, 2017: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/28654660/isolation-and-characterization-of-gmmybj3-an-r2r3-myb-transcription-factor-that-affects-isoflavonoids-biosynthesis-in-soybean
#3
Mingzhu Zhao, Tianliang Wang, Ping Wu, Wenyun Guo, Liantai Su, Ying Wang, Yajing Liu, Fan Yan, Qingyu Wang
Isoflavonoids are secondary metabolites that play a variety of roles in plant-microbe interactions and plant defenses against abiotic stresses. Here we report a new MYB transcription factor (TF) gene, GmMYBJ3, that is involved in the isoflavonoids biosynthesis. The GmMYBJ3 gene is 1,002 bp long and encodes a protein of 333 amino acids. Amino acid sequence analysis showed that GmMYBJ3 is a typical R2R3 MYB TF. Yeast expression experiment demonstrated that GmMYBJ3 has its transcription activity in the nucleus and is transiently expressed in onion epidermal cells...
2017: PloS One
https://www.readbyqxmd.com/read/28654223/the-pomegranate-punica-granatum-l-genome-and-the-genomics-of-punicalagin-biosynthesis
#4
Gaihua Qin, Chunyan Xu, Ray Ming, Haibao Tang, Romain Guyot, Elena M Kramer, Yudong Hu, Xingkai Yi, Yongjie Qi, Xiangyang Xu, Zhenghui Gao, Haifa Pan, Jianbo Jian, Yinping Tian, Zhen Yue, Yiliu Xu
Pomegranate (Punica granatum L.) is a perennial fruit crop grown since ancient times that has been planted worldwide and is known for its functional metabolites, particularly punicalagins. We have sequenced and assembled the pomegranate genome with 328 Mb anchored into nine pseudo-chromosomes and annotated 29 229 gene models. A Myrtales lineage-specific whole-genome duplication (WGD) event was detected that occurred in the common ancestor before the divergence of pomegranate and Eucalyptus. Repetitive sequences accounted for 46...
June 27, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28654215/the-fgsrp1-sr-protein-gene-is-important-for-plant-infection-and-pre-mrna-processing-in-fusarium-graminearum
#5
Yimei Zhang, Xuli Gao, Manli Sun, Huiquan Liu, Jin-Rong Xu
The versatile functions of SR (serine/arginine-rich) proteins in pre-mRNA splicing and processing are modulated by reversible phosphorylation. Previous studies showed that FgPrp4, the only protein kinase among spliceosome components, is important for intron splicing and the FgSrp1 SR protein is phosphorylated at five conserved sites in Fusarium graminearum. In this study, we showed that the Fgsrp1 deletion mutant rarely produced conidia and caused only limited symptoms on wheat heads and corn silks. Deletion of FgSRP1 also reduced ascospore ejection and deoxynivalenol (DON) production...
June 27, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28653998/cell-free-production-of-pentacyclic-triterpenoid-compound-betulinic-acid-from-betulin-by-the-engineered-saccharomyces-cerevisiae
#6
Jianan Wu, Yongwu Niu, Abdelmoneim Bakur, Hao Li, Qihe Chen
Betulinic acid is a product of plant secondary metabolism which has shown various bioactivities. Several CYP716A subfamily genes were recently characterized encoding multifunctional oxidases capable of C-28 oxidation. CYP716A12 was identified as betulin C-28 oxidase, capable of modifying betulin. This study aimed to induce the transformation of betulin to betulinic acid by co-expressing enzymes CYP716A12 from Medicago truncatula and ATR1 from Arabidopsis thaliana in Saccharomyces cerevisiae. The microsome protein extracted from the transgenic yeast successfully catalyzed the transformation of betulin to betulinic acid...
June 27, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28653444/ambient-temperature-mediated-changes-in-hepatic-gene-expression-of-a-mammalian-herbivore-neotoma-lepida
#7
Patrice Kurnath Connors, Jael R Malenke, M Denise Dearing
Herbivores regularly ingest natural toxins produced by plants as a defence against herbivory. Recent work suggests that compound toxicity is exacerbated at higher ambient temperatures. This phenomenon, known as temperature-dependent toxicity (TDT), is the likely result of decreased liver function at warmer temperatures; however, the underlying cause of TDT remains speculative. In the present study, we compared the effects of temperature and dietary plant toxins on differential gene expression in the liver of an herbivorous rodent (Neotoma lepida), using species-specific microarrays...
June 27, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28653185/nitrate-transporters-an-overview-in-legumes
#8
REVIEW
Anthoni Pellizzaro, Bénédicte Alibert, Elisabeth Planchet, Anis M Limami, Marie-Christine Morère-Le Paven
The nitrate transporters, belonging to NPF and NRT2 families, play critical roles in nitrate signaling, root growth and nodule development in legumes. Nitrate plays an essential role during plant development as nutrient and also as signal molecule, in both cases working via the activity of nitrate transporters. To date, few studies on NRT2 or NPF nitrate transporters in legumes have been reported, and most of those concern Lotus japonicus and Medicago truncatula. A molecular characterization led to the identification of 4 putative LjNRT2 and 37 putative LjNPF gene sequences in L...
June 26, 2017: Planta
https://www.readbyqxmd.com/read/28653151/identification-of-quantitative-trait-loci-associated-with-resistance-to-net-form-net-blotch-in-a-collection-of-nordic-barley-germplasm
#9
Ronja Wonneberger, Andrea Ficke, Morten Lillemo
Association mapping of resistance to Pyrenophora teres f. teres in a collection of Nordic barley germplasm at different developmental stages revealed 13 quantitative loci with mostly small effects. Net blotch, caused by the necrotrophic fungus Pyrenophora teres, is one of the major diseases in barley in Norway causing quantitative and qualitative yield losses. Resistance in Norwegian cultivars and germplasm is generally insufficient and resistance sources have not been extensively explored yet. In this study, we mapped quantitative trait loci (QTL) associated with resistance to net blotch in Nordic germplasm...
June 26, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28652587/novel-loop-mediated-isothermal-amplification-lamp-assay-with-a-universal-qprobe-can-detect-snps-determining-races-in-plant-pathogenic-fungi
#10
Yu Ayukawa, Saeri Hanyuda, Naoko Fujita, Ken Komatsu, Tsutomu Arie
Tomato wilt pathogen Fusarium oxysporum f. sp. lycopersici (Fol) is grouped into three races based on their pathogenicity to different host cultivars. Rapid detection and discrimination of Fol races in field soils is important to prevent tomato wilt disease. Although five types of point mutations in secreted in xylem 3 (SIX3) gene, which are characteristic of race 3, have been reported as a molecular marker for the race, detection of these point mutations is laborious. The aim of this study is to develop a rapid and accurate method for the detection of point mutations in SIX3 of Fol...
June 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28652583/genome-wide-identification-and-characterization-of-genes-involved-in-carotenoid-metabolic-in-three-stages-of-grapevine-fruit-development
#11
Xiangpeng Leng, Peipei Wang, Chen Wang, Xudong Zhu, Xiaopeng Li, Hongyan Li, Qian Mu, Ao Li, Zhongjie Liu, Jinggui Fang
Carotenoids not only play indispensable roles in plant growth and development but also enhance nutritional value and health benefits for humans. In this study, total carotenoids progressively decreased during fruit ripening. Fifty-four genes involving in mevalonate (MVA), 2-C-methyl-D-erythritol 4-phosphate (MEP), carotenoid biosynthesis and catabolism pathway were identified. The expression levels of most of the carotenoid metabolism related genes kept changing during fruit ripening generating a metabolic flux toward carotenoid synthesis...
June 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28652328/pathogen-exploitation-of-an-abscisic-acid-and-jasmonate-inducible-mapk-phosphatase-and-its-interception-by-arabidopsis-immunity
#12
Akira Mine, Matthias L Berens, Tatsuya Nobori, Shajahan Anver, Kaori Fukumoto, Thomas M Winkelmüller, Atsushi Takeda, Dieter Becker, Kenichi Tsuda
Phytopathogens promote virulence by, for example, exploiting signaling pathways mediated by phytohormones such as abscisic acid (ABA) and jasmonate (JA). Some plants can counteract pathogen virulence by invoking a potent form of immunity called effector-triggered immunity (ETI). Here, we report that ABA and JA mediate inactivation of the immune-associated MAP kinases (MAPKs), MPK3 and MPK6, in Arabidopsis thaliana ABA induced expression of genes encoding the protein phosphatases 2C (PP2Cs), HAI1, HAI2, and HAI3 through ABF/AREB transcription factors...
June 26, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28652183/genome-wide-identification-and-characterization-of-the-spl-gene-family-in-ziziphus-jujuba
#13
Fenjuan Shao, Qiang Lu, Iain W Wilson, Deyou Qiu
SQUAMOSA Promoter-Binding Protein-Likes (SPLs) are plant specific transcription factors playing important roles in plant growth and development. The SPL gene family has been studied in various plant species; however, there is no report about SPLs in Zizyphus jujuba. In this study, we identified 18 putative ZjSPL genes in Z. jujuba using a genome-wide analysis. Sequence features, gene structures, conserved domains and motifs were analyzed. The phylogenetic relationships of SPLs in Z. jujuba and A. thaliana were revealed...
June 23, 2017: Gene
https://www.readbyqxmd.com/read/28651543/profiling-of-drought-responsive-microrna-and-mrna-in-tomato-using-high-throughput-sequencing
#14
Minmin Liu, Huiyang Yu, Gangjun Zhao, Qiufeng Huang, Yongen Lu, Bo Ouyang
BACKGROUND: Abiotic stresses cause severe loss of crop production. Among them, drought is one of the most frequent environmental stresses, which limits crop growth, development and productivity. Plant drought tolerance is fine-tuned by a complex gene regulatory network. Understanding the molecular regulation of this polygenic trait is crucial for the eventual success to improve plant yield and quality. Recent studies have demonstrated that microRNAs play critical roles in plant drought tolerance...
June 26, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28651535/molecular-phylogeny-reveals-food-plasticity-in-the-evolution-of-true-ladybird-beetles-coleoptera-coccinellidae-coccinellini
#15
Hermes E Escalona, Andreas Zwick, Hao-Sen Li, Jiahui Li, Xingmin Wang, Hong Pang, Diana Hartley, Lars S Jermiin, Oldřich Nedvěd, Bernhard Misof, Oliver Niehuis, Adam Ślipiński, Wioletta Tomaszewska
BACKGROUND: The tribe Coccinellini is a group of relatively large ladybird beetles that exhibits remarkable morphological and biological diversity. Many species are aphidophagous, feeding as larvae and adults on aphids, but some species also feed on other hemipterous insects (i.e., heteropterans, psyllids, whiteflies), beetle and moth larvae, pollen, fungal spores, and even plant tissue. Several species are biological control agents or widespread invasive species (e.g., Harmonia axyridis (Pallas))...
June 26, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28651381/meta-barcoding-in-combination-with-palynological-inference-is-a-potent-diagnostic-marker-for-honey-floral-composition
#16
Rama Chandra Laha, Surajit De Mandal, Lalhmanghai Ralte, Laldinfeli Ralte, Nachimuthu Senthil Kumar, Guruswami Gurusubramanian, Ramalingam Satishkumar, Raja Mugasimangalam, Nagesh Aswathnarayana Kuravadi
Identification of floral samples present in honey is important in order to determine the medicinal value, enhance the production of honey as well as to conserve the honey bees. Traditional approaches for studying pollen samples are based on microscopic observation which is laborious, time intensive and requires specialized palynological knowledge. Present study compares two composite honey metagenome collected from 20 samples in Mizoram, Northeast India using three gene loci- rbcL, matK and ITS2 that was sequenced using a next-generation sequencing (NGS) platform (Illumina Miseq)...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28651315/linking-potential-nitrification-rates-nitrogen-cycling-genes-and-soil-properties-after-remediating-the-agricultural-soil-contaminated-with-heavy-metal-and-fungicide
#17
Manyun Zhang, Shahla Hosseini Bai, Li Tang, Yaling Zhang, Ying Teng, Zhihong Xu
Apart from the contaminant removal, the remediation of agricultural soil should also pay more attention to soil nutrient retention and biogeochemical cycling. This study aimed to evaluate changes of soil properties, potential nitrification rates (PNRs), and functional gene abundances and link their relationships after remediating co-contaminated agricultural soil with Medicago sativa L. (alfalfa) planting, alone or together with biochar application. Compared with the control (CK), alfalfa planting, alone or together with biochar application, could significantly increase soil organic matter (SOM) contents and discrepantly affect soil pH values...
June 19, 2017: Chemosphere
https://www.readbyqxmd.com/read/28651047/prioritization-of-contaminants-of-emerging-concern-in-wastewater-treatment-plant-discharges-using-chemical-gene-interactions-in-caged-fish
#18
Edward J Perkins, Tanwir Habib, Barbara L Escalon, Jenna E Cavallin, Linnea Thomas, Matthew Weberg, Megan N Hughes, Kathleen M Jensen, Michael D Kahl, Daniel L Villeneuve, Gerald T Ankley, Natalia Garcia-Reyero
We examined whether contaminants present in surface waters could be prioritized for further assessment by linking the presence of specific chemicals to gene expression changes in exposed fish. Fathead minnows were deployed in cages for 2, 4, or 8 days at three locations near two different wastewater treatment plant discharge sites in the Saint Louis Bay, Duluth, MN and one upstream reference site. The biological impact of 51 chemicals detected in the surface water of 133 targeted chemicals was determined using biochemical endpoints, exposure activity ratios for biological and estrogenic responses, known chemical:gene interactions from biological pathways and knowledge bases, and analysis of the co-variance of ovary gene expression with surface water chemistry...
June 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28651022/can-natural-variation-in-grain-p-concentrations-be-exploited-in-rice-breeding-to-lower-fertilizer-requirements
#19
Fanmiao Wang, James Douglas Morrison King, Terry Rose, Tobias Kretzschmar, Matthias Wissuwa
Agricultural usage of phosphorus (P) is largely driven by the amount of P removed from fields in harvested plant matter as offtake needs to be balanced by P fertilizer application. Reducing P concentration in grains is a way to decrease P offtake and reduce P fertilizer requirements or soil P mining where insufficient P is applied. Our objective was to assesses the genotypic variation for grain P concentration present within the rice gene pool and resolve to what extent it is affected by environment (P supply) or associated with genetic factors...
2017: PloS One
https://www.readbyqxmd.com/read/28650988/transcriptomic-analysis-to-uncover-genes-affecting-cold-resistance-in-the-chinese-honey-bee-apis-cerana-cerana
#20
Kai Xu, Qingsheng Niu, Huiting Zhao, Yali Du, Yusuo Jiang
The biological activity and geographical distribution of honey bees is strongly temperature-dependent, due to their ectothermic physiology. In China, the endemic Apis cerana cerana exhibits stronger cold hardiness than Western honey bees, making the former species important pollinators of winter-flowering plants. Although studies have examined behavioral and physiological mechanisms underlying cold resistance in bees, data are scarce regarding the exact molecular mechanisms. Here, we investigated gene expression in A...
2017: PloS One
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