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https://www.readbyqxmd.com/read/30341752/dissipation-kinetics-and-risk-assessments-of-tricyclazole-during-oryza-sativa-l-growing-processing-and-storage
#1
Zhiyuan Meng, Xiaojun Chen, Lingjun Guan, Zhiying Xu, Qingxia Zhang, Yueyi Song, Fang Liu, Tianle Fan
Because of the increase of people's attention to food safety, monitoring the residue of pesticide in rice is becoming more and more important. Commercial and home processing techniques have been used to transform paddy rice into rice products for human or animal consumption, which may reduce the pesticide content in rice. The degradation of tricyclazole during different stages of commercial and home processing and storage was assessed in this paper. Many researches studying the occurrence and distribution of pesticide residues during rice cropping and processing have been reported...
October 19, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/30340512/rapid-and-pervasive-development-and-tissue-specific-homeolog-expression-partitioning-in-newly-formed-inter-subspecific-rice-segmental-allotetraploids
#2
Long Zhao, Lei Han, Chaoxia Xiao, Xiuyun Lin, Chunming Xu, Chunwu Yang
BACKGROUND: In diverse plant taxa, whole-genome duplication (WGD) events are major sources of phenotypic novelty. Studies of gene expression in synthetic polyploids have shown immediate expression and functional partitioning of duplicated genes among different tissues. Many studies of the tissue-specific homeolog expression partitioning have focused on allopolyploids that have very different parental genomes, while few studies have focused on autopolyploids or allopolyploids that have similar parental genomes...
October 19, 2018: BMC Genomics
https://www.readbyqxmd.com/read/30339276/natural-variation-in-a-molybdate-transporter-controls-grain-molybdenum-concentration-in-rice
#3
Xin-Yuan Huang, Huan Liu, Yu-Fei Zhu, Shannon R M Pinson, Hong-Xuan Lin, Mary Lou Guerinot, Fang-Jie Zhao, David E Salt
Molybdenum (Mo) is an essential micronutrient for most living organisms, including humans. Cereals such as rice are the major dietary source of Mo. However, little is known about the genetic basis of the variation in Mo content in rice (Oryza sativa) grain. We mapped a quantitative trait locus (QTL) qGMo8 that controls Mo accumulation in rice grain by using a recombinant inbred line population and a backcross introgression line population. We identified a molybdate transporter, OsMOT1;1, as the causal gene for this QTL...
October 19, 2018: New Phytologist
https://www.readbyqxmd.com/read/30339117/prevotella-rara-sp-nov-isolated-from-human-faeces
#4
Boris A Efimov, Andrei V Chaplin, Victoria A Shcherbakova, Natalia E Suzina, Irina V Podoprigora, Andrei N Shkoporov
A strain of obligately anaerobic, Gram-stain-negative rods was isolated from human faeces and characterized both phenotypically and genotypically. Phylogenetic analysis based on 16S rRNA gene and whole-genome sequences revealed the strain to represent a member of the genus Prevotella, distant from the species with validly published names, with the closest relationship to Prevotella oryzae. The strain was moderately saccharolytic and proteolytic. The predominant menaquinones were MK-13 and MK-12. The major cellular long-chain fatty acids were anteiso-C15 : 0 and iso-C15 : 0...
October 19, 2018: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/30338581/invasive-mucormycosis-in-children-with-cance-r-a-retrospective-study-from-the-infection-working-group-of-italian-pediatric-hematology-oncology-association
#5
P Muggeo, E Calore, N Decembrino, S Frenos, F De Leonardis, A Colombini, F Petruzziello, K Perruccio, M Berger, R Burnelli, G A Zanazzo, N Santoro, S Cesaro
BACKGROUND: Invasive mucormycosis is a rare but frequently fatal fungal disease. The acute and rapidly progressive evolution causes unfavourable outcome in 22-59% of patients and its treatment represents a clinical challenge, especially in immunocompromised patients. Current data in pediatric oncological patients are limited. OBJECTIVES: The infection Working Group of the Italian Association of Pediatric Hematology and Oncology (AIEOP) analyzed the episodes of invasive mucormycosis occurred between 2009 and 2016...
October 18, 2018: Mycoses
https://www.readbyqxmd.com/read/30337911/melatonin-treatment-inhibits-the-growth-of-xanthomonas-oryzae-pv-oryzae
#6
Xian Chen, Cheng Sun, Pedro Laborda, Yancun Zhao, Ian Palmer, Zheng Qing Fu, Jingping Qiu, Fengquan Liu
Xanthomonas oryzae pv. oryzae ( Xoo ) causes rice bacterial blight (BB), one of the most widespread and destructive diseases in rice-growing regions worldwide. Melatonin enhances pathogen resistance by inducing plant innate immunity, but the direct effect of melatonin on plant pathogenic bacteria is poorly understood. In this study, we investigated the direct effects of melatonin on Xoo . Exogenous melatonin at 200 μg/mL significantly inhibited the proliferation of Xoo and reduced the mRNA expression of five genes involved in cell division...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/30336423/influence-of-triazole-pesticides-on-tillage-soil-microbial-populations-and-metabolic-changes
#7
Praveen Satapute, Milan V Kamble, Shivakantkumar S Adhikari, Sudisha Jogaiah
Pesticides are generally applied to agricultural soil to control crop diseases, with the critical goal of preventing yield loss and optimizing economic returns. However, the excessive utilization of pesticides in agriculture is a severe environmental and human health problem. In the present study, effect of triazole based fungicide, propiconazole on soil physicochemical properties, stimulatory impact of propiconazole residue on soil microbial communities and soil enzyme activities (phosphatise and urease) in contaminated red sandy loam and deep black soils of paddy (Oryza sativa L...
October 9, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/30336276/the-underlying-pathway-involved-in-inter-subspecific-hybrid-male-sterility-in-rice
#8
Jianwei Shan, Zhongquan Cai, Yu Zhang, Hannan Xu, Jianglei Rao, Yourong Fan, Jiangyi Yang
f5 locus in rice (Oryza sativa L.) confers significant effects on hybrid male sterility and segregation distortion. BC14 F2 plants with f5-i/i, f5-j/j and f5-i/j genotypes were used to dissect the underlying pathway of f5-caused hybrid male sterility via comparative transcriptome analysis. A total of 350, 421, and 480 differentially expressed genes (DEGs) were identified from f5-i/j vs f5-j/j, f5-j/j vs f5-i/i, and f5-i/j vs f5-i/i, respectively. 145 DEGs were identified simultaneously in f5-i/j vs f5-j/j and f5-i/j vs f5-i/i...
October 15, 2018: Genomics
https://www.readbyqxmd.com/read/30333949/biodelignification-and-hydrolysis-of-rice-straw-by-novel-bacteria-isolated-from-wood-feeding-termite
#9
Bahiru Tsegaye, Chandrajit Balomajumder, Partha Roy
In this study, two bacterial strains capable of degrading lignin, cellulose, and hemicellulose were isolated from wood feeding termite. The isolates were identified by 16S rRNA gene sequencing. A bacterium Ochrobactrum oryzae BMP03 capable of degrading lignin was isolated on alkali lignin medium and Bacillus sp. BMP01 strain capable of degrading cellulose and hemicellulose were isolated on carboxymethyl cellulose and xylan media. The efficiency of bacterial degradation was studied by evaluating the composition of rice straw both before and after degradation...
October 2018: 3 Biotech
https://www.readbyqxmd.com/read/30332988/osphr3-affects-the-traits-governing-nitrogen-homeostasis-in-rice
#10
Yafei Sun, Wenzhen Luo, Ajay Jain, Lu Liu, Hao Ai, Xiuli Liu, Bing Feng, Liang Zhang, Zhantian Zhang, Xu Guohua, Shubin Sun
BACKGROUND: Phosphate (Pi) and Nitrogen (N) are essential macronutrients required for plant growth and development. In Arabidopsis thaliana (Arabidopsis), the transcription factor PHR1 acts as a Pi central regulator. PHL1 is a homolog of PHR1 and also plays a role in maintaining Pi homeostasis. In rice (Oryza sativa), OsPHR1-4 are the orthologs of PHR1 and have been implicated in regulating sensing and signaling cascades governing Pi homeostasis. RESULTS: Here the role of OsPHR3 was examined in regulating the homeostasis of N under different Pi regimes...
October 17, 2018: BMC Plant Biology
https://www.readbyqxmd.com/read/30332817/biochemical-characterization-of-the-rice-cinnamyl-alcohol-dehydrogenase-gene-family
#11
Hye Lin Park, Tae Lim Kim, Seong Hee Bhoo, Tae Hoon Lee, Sang-Won Lee, Man-Ho Cho
Cinnamyl alcohol dehydrogenase (CAD) is involved in the final step of the phenylpropanod pathway, catalyzing the NADPH-dependent reduction of hydroxy-cinnamaldehydes into the corresponding alcohols. The rice genome contains twelve CAD and CAD-like genes, collectively called OsCAD s. To elucidate the biochemical function of the OsCAD s, OsCAD1 , 2 , 6 , and 7 , which are highly expressed in rice, were cloned from rice tissues. The cloned OsCAD s were heterologously expressed in Escherichia coli as His-tag fusion proteins...
October 16, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/30329110/a-phosphate-starvation-induced-ring-type-e3-ligase-maintains-phosphate-homeostasis-partially-through-osspx2-in-rice
#12
Jian Yang, Meng-Yang Xie, Lan Wang, Zhi-Li Yang, Zhi-Hui Tian, Zhi-Ye Wang, Ji-Ming Xu, Bao-Hui Liu, Liang-Wei Deng, Chuan-Zao Mao, Hong-Hui Lin
Phosphate (Pi), as the main form of phosphorus that can be absorbed by plants, is one of the most limiting macro-nutrients for plants. However, the mechanism for maintaining Pi homeostasis in rice (Oryza sativa) is still not well understood. We identified a Pi-starvation-induced E3 ligase (OsPIE1) in rice. Using an in vitro self-ubiquitination assay, we determined the E3 ligase activities of OsPIE1. Using GUS staining and GFP detection, we analyzed tissue expression patterns of OsPIE1 and the subcellular localization of its encoded protein...
October 17, 2018: Plant & Cell Physiology
https://www.readbyqxmd.com/read/30328779/analysis-of-symptom-development-in-relation-to-quantity-of-rice-stripe-virus-in-rice-oryza-sativa-l-to-simplify-evaluation-of-resistance
#13
Mitsuru Okuda, Takuya Shiba, Masahiro Hirae, Akira Masunaka, Minoru Takeshita
Rice stripe virus (RSV) is one of the most devastating pathogens of rice (Oryza sativa L.) in rice growing regions of East Asia. We analyzed the increase in RSV accumulation in infected rice plants over time and evaluated the association between disease severity and RSV accumulation with the aim of establishing an experimental system for accurate and efficient evaluation of RSV resistance in rice. As an index of RSV accumulation in plants, relative concentration of RNA corresponding to the coat protein gene region was measured using reverse transcription-quantitative polymerase chain reaction...
October 17, 2018: Phytopathology
https://www.readbyqxmd.com/read/30328492/correction-to-mogrr1-a-novel-f-box-protein-is-involved-in-conidiogenesis-and-cell-wall-integrity-and-is-critical-for-the-full-virulence-of-magnaporthe-oryzae
#14
Min Guo, Fei Gao, Xiaolei Zhu, Xiang Nie, YueMin Pan, Zhimou Gao
There is an error in the Original Publication. Two images were mistakenly edited in Fig.6 (panel (a)) and Fig.7 (panel (a). Please find below the corrected figures.
October 17, 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/30327662/phenotyping-for-nitrogen-use-efficiency-rice-genotypes-differ-in-n-responsive-germination-oxygen-consumption-seed-urease-activities-root-growth-crop-duration-and-yield-at-low-n
#15
Narendra Sharma, Vimlendu Bhushan Sinha, Neha Gupta, Soumya Rajpal, Surekha Kuchi, Vetury Sitaramam, Rajender Parsad, Nandula Raghuram
The biological improvement of fertilizer nitrogen use efficiency (NUE) is hampered by the poor characterization of the phenotype and genotype for crop N response and NUE. In an attempt to identify phenotypic traits for N-response and NUE in the earliest stages of plant growth, we analyzed the N-responsive germination, respiration, urease activities, and root/shoot growth of 21 Indica genotypes of rice ( Oryza sativa var. indica ). We found that N delays germination from 0 to 12 h in a genotype-dependent and source-dependent manner, especially with urea and nitrate...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/30327168/heterologous-production-of-free-dihomo-%C3%AE-linolenic-acid-by-aspergillus-oryzae-and-its-extracellular-release-via-surfactant-supplementation
#16
Koichi Tamano, Robert Sidney Cox, Kenji Tsuge, Ai Miura, Ayano Itoh, Jun Ishii, Tomohiro Tamura, Akihiko Kondo, Masayuki Machida
Free dihomo-γ-linolenic acid (DGLA) and its desaturated form, free arachidonic acid (ARA) are polyunsaturated free fatty acids (FFAs). They are useful raw materials to produce eicosanoid pharmaceuticals. In this study, we aimed at their production by the oleaginous filamentous fungus Aspergillus oryzae via metabolic engineering. Three genes encoding enzymes involved in the synthesis of DGLA and ARA, were isolated from the filamentous fungus Mortierella alpina that produces ARA in a triacylglycerol form. These genes were concatenated to promoters and terminators of highly expressed genes of A...
October 13, 2018: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/30326834/two-virulent-srnas-identified-by-genomic-sequencing-target-the-type-iii-secretion-system-in-rice-bacterial-blight-pathogen
#17
Yiqun Hu, Liyuan Zhang, Xuan Wang, Fengli Sun, Xiangxin Kong, Hansong Dong, Heng Xu
BACKGROUND: Small non-coding RNA (sRNA) short sequences regulate various biological processes in all organisms, including bacteria that are animal or plant pathogens. Virulent or pathogenicity-associated sRNAs have been increasingly elucidated in animal pathogens but little is known about similar category of sRNAs in plant-pathogenic bacteria. This is particularly true regarding rice bacterial blight pathogen Xanthomonas oryzae pathovar oryzae (Xoo) as studies on the virulent role of Xoo sRNAs is very limited at present...
October 16, 2018: BMC Plant Biology
https://www.readbyqxmd.com/read/30326608/intracellular-fate-of-universally-labelled-13-c-isotopic-tracers-of-glucose-and-xylose-in-central-metabolic-pathways-of-xanthomonas-oryzae
#18
Manu Shree, Shyam K Masakapalli
The goal of this study is to map the metabolic pathways of poorly understood bacterial phytopathogen, Xanthomonas oryzae (Xoo) BXO43 fed with plant mimicking media XOM2 containing glutamate, methionine and either 40% [13 C₅] xylose or 40% [13 C₆] glucose. The metabolic networks mapped using the KEGG mapper and the mass isotopomer fragments of proteinogenic amino acids derived from GC-MS provided insights into the activities of Xoo central metabolic pathways. The average 13 C in histidine, aspartate and other amino acids confirmed the activities of PPP, the TCA cycle and amino acid biosynthetic routes, respectively...
October 15, 2018: Metabolites
https://www.readbyqxmd.com/read/30324529/genome-wide-identification-of-the-fatty-acid-desaturases-gene-family-in-four-aspergillus-species-and-their-expression-profile-in-aspergillus-oryzae
#19
Wen Tang, Changsheng Ouyang, Lanlan Liu, Haoran Li, Chuanhui Zeng, Jie Wang, Lijun Fu, Qinqin Wu, Bin Zeng, Bin He
Fatty acid desaturases play a key role in producing polyunsaturated fatty acids by converting single bonds to double bonds. In the present study, a total of 13, 12, 8 and 8 candidate fatty acid desaturases genes were identified in the Aspergillus oryzae, Aspergillus flavus, Aspergillus fumigatus and Aspergillus nidulans genomes through database searches, which were classified into five different subfamilies based on phylogenetic analysis. Furthermore, a comprehensive analysis was performed to characterize conserved motifs and gene structures, which could provide an intuitive comprehension to learn the relationship between structure and functions of the fatty acid desaturases genes in different Aspergillus species...
October 15, 2018: AMB Express
https://www.readbyqxmd.com/read/30323903/antioxidative-and-antiproliferative-activities-of-ethanol-extracts-from-pigmented-giant-embryo-rice-oryza-sativa-l-cv-keunnunjami-before-and-after-germination
#20
Soo Im Chung, Sang Chul Lee, Seong Joon Yi, Mi Young Kang
BACKGROUND/OBJECTIVES: Oxidative stress is a major cause of cancer. This study investigated the effects of the ethanol extracts from germinated and non-germinated Keunnunjami rice, a blackish-purple pigmented cultivar with giant embryo, on selected human cancer cell lines and on the antioxidant defense system of mice fed with a high-fat diet. MATERIALS/METHODS: High fat-fed mice were orally administered with either distilled water (HF) or extracts (0.25%, w/w) from brown (B), germinated brown (GB), Keunnunjami (K), and germinated Keunnunjami (GK) rice...
October 2018: Nutrition Research and Practice
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