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https://www.readbyqxmd.com/read/28643846/feeding-behaviour-of-generalist-pests-on-brassica-juncea-implication-for-manipulation-of-glucosinolate-biosynthesis-pathway-for-enhanced-resistance
#1
Pawan Kumar, Rehna Augustine, Amarjeet Kumar Singh, Naveen C Bisht
Differential accumulation of plant defense metabolites has been suggested to have important ecological consequence in the context of plant-insect interactions. Feeding of generalist pests on Brassica juncea showed a distinct pattern with selective exclusion of leaf margins which are high in glucosinolates. Molecular basis of this differential accumulation of glucosinolates could be explained based on differential expression profile of BjuMYB28 homologs, the major biosynthetic regulators of aliphatic glucosinolates, as evident from quantitative real-time PCR and promoter:GUS fusion studies in allotetraploid B...
June 23, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28642765/genome-wide-identification-of-ap2-erf-transcription-factors-in-cauliflower-and-expression-profiling-of-the-erf-family-under-salt-and-drought-stresses
#2
Hui Li, Yu Wang, Mei Wu, Lihong Li, Cong Li, Zhanpin Han, Jiye Yuan, Chengbin Chen, Wenqin Song, Chunguo Wang
The AP2/ERF transcription factors (TFs) comprise one of the largest gene superfamilies in plants. These TFs perform vital roles in plant growth, development, and responses to biotic and abiotic stresses. In this study, 171 AP2/ERF TFs were identified in cauliflower (Brassica oleracea L. var. botrytis), one of the most important horticultural crops in Brassica. Among these TFs, 15, 9, and 1 TFs were classified into the AP2, RAV, and Soloist family, respectively. The other 146 TFs belong to ERF family, which were further divided into the ERF and DREB subfamilies...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28642254/redox-regulation-of-a-guard-cellsnf1-relatedprotein-kinase-in-brassica-napus-%C3%A2-an-oilseed-crop
#3
Menmeng Zhu, Tong Zhang, Wei Ji, Cecilia Silva-Sanchez, Wenyuan Song, Sarah M Assmann, Alice C Harmon, Sixue Chen
Kinase-mediated phosphorylation is a pivotal regulatory process in stomatal responses to stresses. Through a redox proteomics study, a sucrose non-fermenting 1-related protein kinase (SnRK2.4) was identified to be redox regulated in Brassica napus guard cells upon abscisic acid (ABA) treatment. There are six genes encoding SnRK2.4 paralogs in B. napus Here we show that recombinant BnSnRK2.4-1C exhibited autophosphorylation activity and preferentially phosphorylated the N-terminal region of B. napus slow anion channel (BnSLAC1-NT) over generic substrates...
June 22, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28640973/production-of-red-flowered-oilseed-rape-via-the-ectopic-expression-of-orychophragmus-violaceus-ovpap2
#4
Wenqin Fu, Daozong Chen, Qi Pan, Fengfeng Li, Zhigang Zhao, Xianhong Ge, Zaiyun Li
Oilseed rape (Brassica napus L.), which has yellow flowers, is both an important oil crop and a traditional tourism resource in China, whereas the Orychophragmus violaceus, which has purple flowers, likely possesses a candidate gene or genes to alter the flower color of oilseed rape. A previously established B. napus line has a particular pair of O. violaceus chromosomes (M4) and exhibits slightly red petals. In this study, the transcriptomic analysis of M4, B. napus (H3), and O. violaceus with purple petals (OvP) and with white petals (OvW) revealed that most anthocyanin biosynthesis genes were up-regulated in both M4 and OvP...
June 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28640254/reduced-brain-ucp2-expression-mediated-by-microrna-503-contributes-to-increased-stroke-susceptibility-in-the-high-salt-fed-stroke-prone-spontaneously-hypertensive-rat
#5
Speranza Rubattu, Rosita Stanzione, Franca Bianchi, Maria Cotugno, Maurizio Forte, Floriana Della Ragione, Salvatore Fioriniello, Maurizio D'Esposito, Simona Marchitti, Michele Madonna, Simona Baima, Giorgio Morelli, Sebastiano Sciarretta, Luigi Sironi, Paolo Gelosa, Massimo Volpe
UCP2 maps nearby the lod score peak of STR1-stroke QTL in the SHRSP rat strain. We explored the potential contribution of UCP2 to the high-salt diet (JD)-dependent increased stroke susceptibility of SHRSP. Male SHRSP, SHRSR, two reciprocal SHRSR/SHRSP-STR1/QTL stroke congenic lines received JD for 4 weeks to detect brain UCP2 gene/protein modulation as compared with regular diet (RD). Brains were also analyzed for NF-κB protein expression, oxidative stress level and UCP2-targeted microRNAs expression level...
June 22, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28640193/identification-of-light-independent-anthocyanin-biosynthesis-mutants-induced-by-ethyl-methane-sulfonate-in-turnip-tsuda-brassica-rapa
#6
Jian-Fei Yang, Yun-Zhu Chen, Saneyuki Kawabata, Yu-Hua Li, Yu Wang
The epidermis of swollen storage roots in purple cultivars of turnip "Tsuda" (Brassica rapa) accumulates anthocyanin in a light-dependent manner, especially in response to UV-A light, of which the mechanism is unclear. In this study, we mutagenized 15,000 seeds by 0.5% (v/v) ethyl methane sulfonate (EMS) and obtained 14 mutants with abnormal anthocyanin production in their epidermis of swollen storage roots. These mutants were classified into two groups: the red mutants with constitutive anthocyanin accumulation in their epidermis of storage roots even in underground parts in darkness and the white mutants without anthocyanin accumulation in the epidermis of storage roots in aboveground parts exposed to sunlight...
June 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28638437/a-multiplex-pcr-for-rapid-identification-of-brassica-species-in-the-triangle-of-u
#7
Joshua C O Koh, Denise M Barbulescu, Sally Norton, Bob Redden, Phil A Salisbury, Sukhjiwan Kaur, Noel Cogan, Anthony T Slater
BACKGROUND: Within the Brassicaceae, six species from the genus Brassica are widely cultivated throughout the world as oilseed, condiment, fodder or vegetable crops. The genetic relationships among the six Brassica species are described by U's triangle model. Extensive shared traits and diverse morphotypes among Brassica species make identification and classification based on phenotypic data alone challenging and unreliable, especially when dealing with large germplasm collections. Consequently, a major issue for genebank collections is ensuring the correct identification of species...
2017: Plant Methods
https://www.readbyqxmd.com/read/28638399/recent-genetic-gains-in-nitrogen-use-efficiency-in-oilseed-rape
#8
Andreas Stahl, Mara Pfeifer, Matthias Frisch, Benjamin Wittkop, Rod J Snowdon
Nitrogen is essential for plant growth, and N fertilization allows farmers to obtain high yields and produce sufficient agricultural commodities. On the other hand, nitrogen losses potentially cause adverse effects to ecosystems and to human health. Increasing nitrogen use efficiency (NUE) is vital to solve the conflict between productivity, to secure the demand of a growing world population, and the protection of the environment. To ensure this, genetic improvement is considered to be a paramount aspect toward ecofriendly crop production...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28634809/genetic-and-transcriptomic-analyses-of-lignin-and-lodging-related-traits-in-brassica-napus
#9
Lijuan Wei, Hongju Jian, Kun Lu, Nengwen Yin, Jia Wang, Xiujian Duan, Wei Li, Liezhao Liu, Xinfu Xu, Rui Wang, Andrew H Paterson, Jiana Li
Candidate genes associated with lignin and lodging traits were identified by combining phenotypic, genotypic, and gene expression data in B. napus. Brassica napus is one of the world's most important oilseed crops, but its yield can be dramatically reduced by lodging, bending, and falling of its vertical stems. Lignin has been shown to contribute to stem mechanical strength. In this study, we found that the syringyl/guaiacyl (S/G) monolignol ratio exhibits a significant negative correlation with disease and lodging resistance...
June 20, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28634808/mapping-of-genetic-locus-for-leaf-trichome-in-brassica-oleracea
#10
Jiaqin Mei, Jinhua Wang, Yuehua Li, Shuai Tian, Dayong Wei, Chaoguo Shao, Jun Si, Qing Xiong, Jiana Li, Wei Qian
The genetic locus for leaf trichome was identified via marker-based mapping and SNP microarray assay, and a functional marker was developed to facilitate the breeding for hairiness in Brassica oleracea. Plant trichomes are involved in various functions particularly in protecting plants against some biotic and abiotic damages. In the present study, an F2 segregating population was developed from the cross between a glabrous cultivated B. oleracea (CC, 2n = 18) and a hairy wild relative, B. incana (CC, 2n = 18)...
June 20, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28633518/the-optimization-of-siderophore-production-by-bacillus-sp-pz-1-and-its-potential-enhancement-on-phytoextration-of-pb-from-soil
#11
Sumei Yu, Chunying Teng, Xin Bai, Jinsong Liang, Tao Song, Liying Dong, Yu Jin, Juanjuan Qu
In this study, the siderophore-producing characteristics and conditions of Bacillus sp. PZ-1 were investigated and the enhancement of siderophores on Pb uptake and translocation in Brassica juncea were determined. Results of single factor experiment showed that glucose, pH and Pb(NO3)2 could stimulate PZ-1 growth and siderophore production. The maximum siderophore production of 90.52% siderophore units was obtained by response surface methodology optimization at glucose concentration of 21.84 g/l, pH 6.18 and Pb(NO3)2 concentration of 245...
June 21, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28633114/do-glucosinolate-hydrolysis-products-reduce-nitrous-oxide-emissions-from-urine-affected-soil
#12
S F Balvert, J Luo, L A Schipper
New Zealand agriculture is predominantly comprised of pastoral grazing systems and deposition of animal excreta during grazing has been identified as a major source of nitrous oxide (N2O) emissions. Nitrification inhibitors have been shown to significantly reduce nitrous oxide emissions from grazing pastoral systems, and some plants have been identified as having nitrification inhibiting properties. Brassica crops are one such example as they contain the secondary metabolite glucosinolate (GLS) whose hydrolysis products are thought to slow soil nitrogen cycling...
June 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28633105/effects-of-triacontanol-on-ascorbate-glutathione-cycle-in-brassica-napus-l-exposed-to-cadmium-induced-oxidative-stress
#13
Elham Asadi Karam, Viviana Maresca, Sergio Sorbo, Batool Keramat, Adriana Basile
The ability of exogenous triacontanol (TRIA), a plant growth regulator, to reduce Cd toxicity was studied in canola (Brassica napus L.) plants. The following biological parameters were examined in canola seedlings to investigate TRIA-induced tolerance to Cd toxicity: seedling growth, chlorophyll damage and antioxidant response. In particular, TRIA application reduced Cd-induced oxidative damage, as shown by reduction of ROS content, lipoxygenase (LOX) activity and lipid peroxidation level. TRIA pretreatment increased non-enzymatic antioxidant contents (ascorbate, AsA, glutathione and GSH), phytochelatin content (PCs) and activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), guaiacol peroxidase (GPX), monodehydroascorbate reductase (MDHAR), dehydro ascorbate reductase (DHAR), and glutathione reductase (GR), so reducing the oxidative stress...
June 17, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28629321/the-biocontrol-agent-pseudomonas-chlororaphis-pa23-primes-brassica-napus-defenses-through-distinct-gene-networks
#14
Kelly A Duke, Michael G Becker, Ian J Girard, Jenna L Millar, W G Dilantha Fernando, Mark F Belmonte, Teresa R de Kievit
BACKGROUND: The biological control agent Pseudomonas chlororaphis PA23 is capable of protecting Brassica napus (canola) from the necrotrophic fungus Sclerotinia sclerotiorum via direct antagonism. While we have elucidated bacterial genes and gene products responsible biocontrol, little is known about how the host plant responds to bacterial priming on the leaf surface, including global changes in gene activity in the presence and absence of S. sclerotiorum. RESULTS: Application of PA23 to the aerial surfaces of canola plants reduced the number of S...
June 19, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28629219/thermally-induced-generation-of-desirable-aroma-active-compounds-from-the-glucosinolate-sinigrin
#15
Eva Ortner, Michael Granvogl
Glucosinolates are the most abundant secondary sulfur-containing plant metabolites in the plant family of Brassicaceae. These phytochemicals are well-known for their enzymatic degradation induced by the enzyme myrosinase resulting in pungent odor impressions derived from their respective degradation products. However, up to now, only little attention has been paid to non-enzymatic thermal degradation and the release of additional aroma-active compounds. Thermal treatment is particularly important in the processing of Brassica vegetables, and, thereby, glucosinolates as precursors can act as a natural source of odorants...
June 20, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28628300/application-of-struvite-alters-the-antibiotic-resistome-in-soil-rhizosphere-and-phyllosphere
#16
Qing-Lin Chen, Xin-Li An, Yong-Guan Zhu, Jian-Qiang Su, Michael R Gillings, Zhi-Long Ye, Li Cui
Struvite recovered from wastewater is a renewable source of phosphorus and nitrogen and can be used as fertilizer for plant growth. However, antibiotics and resistome can be enriched in the struvite derived from wastewater. Robust understanding of the potential risks after struvite application to soils has remained elusive. Here, we profiled antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs) in struvite, soil, rhizosphere and phyllosphere of Brassica using high-throughput quantitative PCR...
June 19, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28624590/maleic-acid-assisted-improvement-of-metal-chelation-and-antioxidant-metabolism-confers-chromium-tolerance-in-brassica-juncea-l
#17
Jubayer Al Mahmud, Mirza Hasanuzzaman, Kamrun Nahar, Anisur Rahman, Md Shahadat Hossain, Masayuki Fujita
Chromium (Cr) is a highly toxic environmental pollutant that negatively affects plant growth and development. Thus, remediating Cr from soil or increasing plant tolerance against Cr stress is urgent. Organic acids are recognized as agents of phytoremediation and as exogenous protectants, but using maleic acid (MA) to attain these results has not yet been studied. Therefore, our study investigated the effects of MA on Cr uptake and mitigation of Cr toxicity. We treated 8-d-old Indian mustard (Brassica juncea L...
June 15, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28623821/green-biosynthesis-of-magnetic-iron-oxide-fe3o4-nanoparticles-using-the-aqueous-extracts-of-food-processing-wastes-under-photo-catalyzed-condition-and-investigation-of-their-antimicrobial-and-antioxidant-activity
#18
Jayanta Kumar Patra, Kwang-Hyun Baek
In this study, a simple, rapid, and eco-friendly green method was introduced to synthesize magnetite iron oxide nanoparticles (Fe3O4 NPs) using the aqueous extracts of two food processing wastes, namely silky hairs of corn (Zea mays L.) and outer leaves of Chinese cabbage (Brassica rapa L. subsp. pekinensis). The boiled solutions of silky hairs (MH) and outer leaves of Chinese cabbage (CCP) were used to synthesize Fe3O4 NPs under photo exposed condition. The MH-FeNPs and CCP-FeNPs synthesized via green route were characterized by UV-Vis spectroscopy, field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), differential thermogravimetric (TG/DTG) analysis, and vibrating sample magnetometer (VSM) analysis...
June 8, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28623792/variations-in-microbial-community-and-ciprofloxacin-removal-in-rhizospheric-soils-between-two-cultivars-of-brassica-parachinensis-l
#19
Xian-Pei Huang, Ce-Hui Mo, Jiao Yu, Hai-Ming Zhao, Can Meng, Yan-Wen Li, Hui Li, Quan-Ying Cai, Ming-Hung Wong
Ciprofloxacin (CIP) is one of most used quinolone antibiotics detected frequently in agricultural soils and vegetables. In the present study, variations in microbial community and CIP removal in rhizospheric soils between two cultivars of Brassica parachinensis L. that accumulate higher and lower CIP (Sijiu and Cutai, respectively) were investigated under CIP stress (0mg/kg in CK, 2.94mg/kg in T1, and 67.11mg/kg in T2). The removal rates of CIP in rhizospheric soils of cultivar Sijiu were higher than those of cultivar Cutai, with a significant difference in T2 (48...
June 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28623022/heterogeneity-of-zeolite-combined-with-biochar-properties-as-a-function-of-sewage-sludge-composting-and-production-of-nutrient-rich-compost
#20
Mukesh Kumar Awasthi, Meijing Wang, Ashok Pandey, Hongyu Chen, Sanjeev Kumar Awasthi, Quan Wang, Xiuna Ren, Altaf Hussain Lahori, Dong-Sheng Li, Ronghua Li, Zengqiang Zhang
In the present study, biochar combined with a higher dosage of zeolite (Z) and biochar (B) alone were applied as additives for dewatered fresh sewage sludge (DFSS) composting using 130-L working volume lab-scale reactors. We first observed that the addition of a mixture of B and Z to DFSS equivalent to 12%B+10% (Z-1), 15% (Z-2) and 30% (Z-3) zeolite (dry weight basis) worked synergistically as an amendment and increased the composting efficiency compared with a treatment of 12%B alone amended and a control without any amendment...
June 13, 2017: Waste Management
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