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https://www.readbyqxmd.com/read/28644760/expression-and-characterization-of-soybean-seed-coat-peroxidase-in-escherichia-coli-bl21-de3
#1
Changqing Liu, Kai Zheng, Ying Xu, Lacmata Tamekou Stephen, Jiming Wang, Hongwei Zhao, Tongqing Yue, Rui Nian, Haibo Zhang, Mo Xian, Huizhou Liu
Soybean seed coat peroxidase(SBP) is a valuable enzyme having a broad variety of applications in analytical chemistry, biochemistry and food processing. In the present study, the sscp gene (Gene ID: 548068) was optimized based on the preferred codon usage of Escherichia coli, synthesized, and expressed in E. coli BL21(DE3). SDS-PAGE and western blot analysis of this expressed protein revealed that its molecular weight is approximately 39 kDa. The effects of induction temperature, concentration of IPTG (isopropyl-β-D-thiogalactoside) and hemin, induction time, expression time were optimized to enhance SBP production with a maximum activity of 11...
June 23, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28644496/the-role-of-soybean-extracts-and-isoflavones-in-hormone-dependent-breast-cancer-aromatase-activity-and-biological-effects
#2
Cristina Amaral, Maria Regina T Toloi, Luis Daniel Vasconcelos, Maria José V Fonseca, Georgina Correia-da-Silva, Natércia Teixeira
Estrogen receptor-positive (ER(+)) breast cancer is the most common cause of cancer death in women worldwide. Nowadays, the relationship between soya diet and breast cancer is controversial due to the unknown role of its isoflavones, genistein (G) and daidzein (D). In this work, we investigated not only the anti-tumor properties of a soybean extract (NBSE) but also whether the biotransformation of extract (BSE) by the fungus Aspergillus awamori increased its effectiveness. The BSE showed a stronger anti-aromatase activity and anti-proliferative efficacy in ER(+) aromatase-overexpressing breast cancer cells...
June 23, 2017: Food & Function
https://www.readbyqxmd.com/read/28644109/the-timing-of-gigantea-expression-during-day-night-cycles-varies-with-the-geographical-origin-of-arabidopsis-accessions
#3
Amaury de Montaigu, George Coupland
Latitudinal clines in circadian rhythms have consistently been described in various plant species, with the most recent examples appearing in soybean cultivars and in monkey flower natural populations. These latitudinal clines provide evidence that natural variation in circadian rhythms is adaptive, but it is still unclear what adaptive benefits this variation confers, particularly because circadian rhythms are not usually measured in day/night conditions that reflect those experienced by organisms in nature...
June 23, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28643882/the-history-and-current-status-of-glyphosate
#4
Stephen O Duke
Glyphosate is the only herbicide to target the enzyme 5-enolpyruvyl-3-shikimate phosphate synthase (EPSPS). It is a high use rate, non-selective herbicide that translocates primarily to metabolic sinks, killing meristematic tissues away from the application site. Its phloem-mobile properties and slow action in killing weeds allows the herbicide to move throughout the plant to kill all meristems, making it effective for perennial weed control. Since commercialization in 1974, its use has grown to dominate the herbicide market...
June 23, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28643182/fvstr1-a-striatin-orthologue-in-fusarium-virguliforme-is-required-for-asexual-development-and-virulence
#5
Kazi T Islam, Jason P Bond, Ahmad M Fakhoury
The soil-borne fungus Fusarium virguliforme causes sudden death syndrome (SDS), one of the most devastating diseases of soybean in North and South America. Despite the importance of SDS, a clear understanding of the fungal pathogenicity factors that affect the development of this disease is still lacking. We have identified FvSTR1, a F. virguliforme gene, which encodes a protein similar to a family of striatin proteins previously reported to regulate signalling pathways, cell differentiation, conidiation, sexual development, and virulence in filamentous fungi...
June 22, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28643161/nonlinear-biotic-ligand-model-for-assessing-alleviation-effects-of-ca-mg-and-k-on-cd-toxicity-to-soybean-roots
#6
Bo-Ching Chen, Pin-Jie Wang, Pei-Chi Ho, Kai-Wei Juang
Developing a nonlinear biotic ligand model (BLM) that considers the geometrical constraints for binding of different cations on biotic ligands will provide more reliable details about the hypothetical mechanism governing the alleviation of cadmium (Cd) toxicity by coexistent cations. Soybean seedlings under Cd stress produced by various activities of coexistent cations such as calcium (Ca(2+)), magnesium (Mg(2+)), and potassium (K(+)) were hydroponically assayed for Cd toxicity to soybean roots. The Cd(2+) activity resulting in 50% reduction of root elongation (RE), EA 50, was used for assessing the Cd toxicity to the soybean seedling...
June 22, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28643122/symbiotic-performance-and-induction-of-systemic-resistance-against-cercospora-sojina-in-soybean-plants-co-inoculated-with-bacillus-sp-chep5-and-bradyrhizobium-japonicum-e109
#7
María Laura Tonelli, C Magallanes-Noguera, A Fabra
Soybean is an economically very important crop throughout the word and particularly in Argentina. Soybean yield may be affected by many factors such as the lack of some essential nutrients or pathogens attack. In this work we demonstrated that the co-inoculation of the native biocontrol bacterium Bacillus sp. CHEP5 which induces resistance against Cercospora sojina in soybean and the nitrogen fixing strain Bradyrhizobium japonicum E109, was more effective in reducing frog leaf spot severity than the inoculation of the biocontrol agent alone...
June 22, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/28642785/potassium-starvation-limits-soybean-growth-more-than-the-photosynthetic-processes-across-co2-levels
#8
Shardendu K Singh, Vangimalla R Reddy
Elevated carbon dioxide (eCO2) often enhances plant photosynthesis, growth, and productivity. However, under nutrient-limited conditions the beneficial effects of high CO2 are often diminished. To evaluate the combined effects of potassium (K) deficiency and eCO2 on soybean photosynthesis, growth, biomass partitioning, and yields, plants were grown under controlled environment conditions with an adequate (control, 5.0 mM) and two deficient (0.50 and 0.02 mM) levels of K under ambient CO2 (aCO2; 400 μmol mol(-1)) and eCO2 (800 μmol mol(-1))...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28642204/co-delivery-of-paclitaxel-and-anti-survivin-sirna-via-redox-sensitive-oligopeptide-liposomes-for-the-synergistic-treatment-of-breast-cancer-and-metastasis
#9
Xinyan Chen, Yidi Zhang, Chunming Tang, Chunli Tian, Qiong Sun, Zhigui Su, Lingjing Xue, YifanYin, Caoyun Ju, Can Zhang
The overexpression of survivin in breast cancer cells is an important factor of paclitaxel (PTX) resistance in breast cancer. To overcome PTX resistance and improve the antitumor effect of PTX, we developed a novel liposome-based nanosystem (PTX/siRNA/SS-L), composed of a redox-sensitive cationic oligopeptide lipid (LHSSG2C14) with a proton sponge effect, natural soybean phosphatidylcholine (SPC), and cholesterol for co-delivery of PTX and anti-survivin siRNA, which could specifically downregulate survivin overexpression...
June 19, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28641406/novel-antimicrobial-activities-of-a-peptide-derived-from-a-japanese-soybean-fermented-food-natto-against-streptococcus-pneumoniae-and-bacillus-subtilis-group-strains
#10
Manabu Kitagawa, Tsukasa Shiraishi, Soh Yamamoto, Ryosuke Kutomi, Yasuo Ohkoshi, Toyotaka Sato, Hideki Wakui, Hideaki Itoh, Atsushi Miyamoto, Shin-Ichi Yokota
We recently isolated a tumoricidal peptide from Natto, a Japanese traditional fermented food. In the present study, antimicrobial activity of the Natto peptide was examined. The peptide consisted of 45 amino acid residues, and its structure was predicted to be rich in α-helix. It excreted antimicrobial activity only against Streptococcus pneumoniae and Bacillus subtilis group (B. subtilis, Bacillus pumilus, and Bacillus licheniformis). Lesser antimicrobial activity was observed for Streptococcus species other than S...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28641371/effects-of-changes-in-leaf-properties-mediated-by-methyl-jasmonate-meja-on-foliar-absorption-of-zn-mn-and-fe
#11
Cui Li, Peng Wang, Neal W Menzies, Enzo Lombi, Peter M Kopittke
Background and Aims: Foliar fertilization to overcome nutritional deficiencies is becoming increasingly widespread. However, the processes of foliar nutrient absorption and translocation are poorly understood. The present study aimed to investigate how cuticular leaf properties affect the absorption of foliar-applied nutrients in leaf tissues. Methods: Given that methyl jasmonate (MeJA) can cause alterations in leaf properties, we applied 1 m m MeJA to sunflower ( Helianthus annuus ), tomato ( Solanum lycopersicum ) and soybean ( Glycine max ) to assess changes in leaf properties...
June 21, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28640834/overexpression-of-gmfdl19-enhances-tolerance-to-drought-and-salt-stresses-in-soybean
#12
Yuanyuan Li, Quanzhen Chen, Haiyang Nan, Xiaoming Li, Sijia Lu, Xiaohui Zhao, Baohui Liu, Changhong Guo, Fanjiang Kong, Dong Cao
The basic leucine zipper (bZIP) family of transcription factors plays an important role in the growth and developmental process as well as responds to various abiotic stresses, such as drought and high salinity. Our previous work identified GmFDL19, a bZIP transcription factor, as a flowering promoter in soybean, and the overexpression of GmFDL19 caused early flowering in transgenic soybean plants. Here, we report that GmFDL19 also enhances tolerance to drought and salt stress in soybean. GmFDL19 was determined to be a group A member, and its transcription expression was highly induced by abscisic acid (ABA), polyethylene glycol (PEG 6000) and high salt stresses...
2017: PloS One
https://www.readbyqxmd.com/read/28638832/the-response-of-macro-and-micronutrient-nutrient-status-and-biochemical-processes-in-rats-fed-on-a-diet-with-selenium-enriched-defatted-rapeseed-and-or-vitamin-e-supplementation
#13
Michaela Rýdlová, Karolína Růnová, Jiřina Száková, Alena Fučíková, Anna Hakenová, Petr Mlejnek, Václav Zídek, Jana Tremlová, Oto Mestek, Antonín Kaňa, Jarmila Zídková, Magdalena Melčová, Klára Truhlářová, Pavel Tlustoš
The response of nutrient status and biochemical processes in (i) Wistar and (ii) spontaneously hypertensive (SHR) rats upon dietary intake of selenium- (Se-) enriched defatted rapeseed (DRS) and/or vitamin E fortification was examined to assess the health benefit of DRS in animal nutrition. Twenty-four individuals of each type of rat were used: The control group was fed with an untreated diet (Diet A). In Diets B and C, soybean meal was replaced with defatted DRS, which comprised 14% of the total diet. The selenized DRS application resulted in ~3-fold increase of Se content in the diet...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28637253/synthesis-and-secretion-of-isoflavones-by-field-grown-soybean
#14
Akifumi Sugiyama, Yumi Yamazaki, Shoichiro Hamamoto, Hisabumi Takase, Kazufumi Yazaki
Isoflavones play important roles in rhizosphere plant-microbe interactions. Daidzein and genistein secreted by soybean roots induce the symbiotic interaction with rhizobia and may modulate rhizosphere interactions with microbes. Yet despite their important roles, little is known about the biosynthesis, secretion and fate of isoflavones in field-grown soybeans. Here, we analysed isoflavone contents and the expression of isoflavone biosynthesis genes in field-grown soybeans. In roots, isoflavone contents and composition did not change with crop growth, but the expressions of UGT4, an isoflavone-specific 7-O-glucosyltransferase, and of ICHG (Isoflavone conjugates hydrolysing beta-glucosidase) was decreased during the reproductive stages...
June 16, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28636976/improving-soil-nutrient-availability-increases-carbon-rhizodeposition-under-maize-and-soybean-in-mollisols
#15
Yunfa Qiao, Shujie Miao, Xiaozeng Han, Shuping Yue, Caixian Tang
Rhizodeposited carbon (C) is an important source of soil organic C, and plays an important role in the C cycle in the soil-plant-atmosphere continuum. However, interactive effects of plant species and soil nutrient availability on C rhizodeposition remain unclear. This experiment examined the effect of soil nutrient availability on C rhizodeposition of C4 maize and C3 soybean with contrasting photosynthetic capacity. The soils (Mollisols) were collected from three treatments of no fertilizer (Control), inorganic fertilizer only (NPK), and NPK plus organic manure (NPKM) in a 24-year fertilization field trial...
June 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28636365/sustainable-elastomers-from-renewable-biomass
#16
Zhongkai Wang, Liang Yuan, Chuanbing Tang
Sustainable elastomers have undergone explosive growth in recent years, partly due to the resurgence of biobased materials prepared from renewable natural resources. However, mounting challenges still prevail: How can the chemical compositions and macromolecular architectures of sustainable polymers be controlled and broadened? How can their processability and recyclability be enabled? How can they compete with petroleum-based counterparts in both cost and performance? Molecular-biomass-derived polymers, such as polymyrcene, polymenthide, and poly(ε-decalactone), have been employed for constructing thermoplastic elastomers (TPEs)...
June 21, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28635666/host-adaptation-of-soybean-dwarf-virus-following-serial-passages-on-pea-pisum-sativum-and-soybean-glycine-max
#17
Bin Tian, Frederick E Gildow, Andrew L Stone, Diana J Sherman, Vernon D Damsteegt, William L Schneider
Soybean Dwarf Virus (SbDV) is an important plant pathogen, causing economic losses in soybean. In North America, indigenous strains of SbDV mainly infect clover, with occasional outbreaks in soybean. To evaluate the risk of a US clover strain of SbDV adapting to other plant hosts, the clover isolate SbDV-MD6 was serially transmitted to pea and soybean by aphid vectors. Sequence analysis of SbDV-MD6 from pea and soybean passages identified 11 non-synonymous mutations in soybean, and six mutations in pea. Increasing virus titers with each sequential transmission indicated that SbDV-MD6 was able to adapt to the plant host...
June 21, 2017: Viruses
https://www.readbyqxmd.com/read/28635371/deoxynivalenol-and-zearalenone-in-unprocessed-cereals-and-soybean-from-different-cultivation-regions-in-croatia
#18
Jelka Pleadin, Jadranka Frece, Tina Lešić, Manuela Zadravec, Nada Vahčić, Mladenka Malenica Staver, Ksenija Markov
The aim of this study was to investigate into the occurrence of deoxynivalenol (DON) and zearalenone (ZEN) in unprocessed cereals and soybean sampled in 2014 and 2015 from different fields located in Croatian regions. A total of 306 samples were analyzed for DON and 415 samples for ZEN concentrations using quantitative ELISA methods. In 2014, DON and ZEN were determined in all samples in the mean concentrations of 1,461 ± 2,265 µg/kg and 656 ± 853 µg/kg, respectively, while in 2015 these means were 2,687 ± 2,731 µg/kg and 1,140 ± 1,630 µg/kg, respectively...
June 21, 2017: Food Additives & Contaminants. Part B, Surveillance
https://www.readbyqxmd.com/read/28635260/development-validation-and-inter-laboratory-evaluation-of-a-quantitative-multiplexing-method-to-assess-levels-of-ten-endogenous-allergens-in-soybean-seed-and-its-application-to-field-trials-spanning-three-growing-seasons
#19
Ryan Christopher Hill, Trent J Oman, Xiujuan Wang, Guomin Shan, Barry Schafer, Rod A Herman, Rowel Tobias, Jeff Shippar, Bhaskar Malayappan, Li Sheng, Austin Xu, Jason Bradshaw
As part of the regulatory approval process in Europe, comparison of endogenous soybean allergen levels between genetically engineered (GE) and non-GE plants has been requested. A quantitative multiplex analytical method using tandem mass spectrometry has been developed and validated to measure ten potential soybean allergens from soybean seed. The analytical method was implemented at six laboratories to demonstrate the robustness of the method and further applied to three soybean field studies across multiple growing seasons (including 21 non-GE soybean varieties) to assess the natural variation of allergen levels...
June 21, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28634481/genome-wide-analysis-of-the-rav-family-in-soybean-and-functional-identification-of-gmrav-03-involvement-in-salt-and-drought-stresses-and-exogenous-aba-treatment
#20
Shu-Ping Zhao, Zhao-Shi Xu, Wei-Jun Zheng, Wan Zhao, Yan-Xia Wang, Tai-Fei Yu, Ming Chen, Yong-Bin Zhou, Dong-Hong Min, You-Zhi Ma, Shou-Cheng Chai, Xiao-Hong Zhang
Transcription factors play vital roles in plant growth and in plant responses to abiotic stresses. The RAV transcription factors contain a B3 DNA binding domain and/or an APETALA2 (AP2) DNA binding domain. Although genome-wide analyses of RAV family genes have been performed in several species, little is known about the family in soybean (Glycine max L.). In this study, a total of 13 RAV genes, named as GmRAVs, were identified in the soybean genome. We predicted and analyzed the amino acid compositions, phylogenetic relationships, and folding states of conserved domain sequences of soybean RAV transcription factors...
2017: Frontiers in Plant Science
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