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https://www.readbyqxmd.com/read/28108976/phenotypic-and-biochemical-alterations-in-relation-to-mt2-gene-expression-in-plantago-ovata-forsk-under-zinc-stress
#1
Paulami Pramanick, Anindita Chakraborty, Sarmistha Sen Raychaudhuri
Plantago ovata Forsk is an annual herb with immense medicinal importance, the seed and husk of which is used in the treatment of chronic constipation, irritable bowel syndrome, diarrhea since ancient times. Zinc, an essential metal, is required by plants as they form important components of zinc finger proteins and also aid in synthesis of photosynthetic pigments such as chlorophyll. However, in excess amount Zn causes chlorosis of leaf and shoot tissues and generate reactive oxygen species. The present study is aimed at investigating the changes in expression levels of MT2 gene in Plantago ovata under zinc stress...
January 20, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28107731/natural-amelioration-of-zinc-oxide-nanoparticle-toxicity-in-fenugreek%C3%A2-trigonella-foenum-gracum-by-arbuscular-mycorrhizal-glomus-intraradices-secretion-of-glomalin
#2
Narges Ghasemi Siani, Seyfollah Fallah, Lok Raj Pokhrel, Ali Rostamnejadi
Owing to rising production and use of engineered nanoparticles (ENPs) in the myriad of consumer applications, ENPs are being released into the environment where their potential fate and effects have remained unclear. With naturally occurring arbuscular mycorrhizal fungus (AMF; Glomus intraradices) in soils, their influence (positive or negative) on ENPs toxicity in plants is not well documented. Herein, we investigated potential influence of AMF on the growth and development in fenugreek (Trigonella foenum-graecum) under varied Zinc oxide nanoparticles (ZnONPs) treatments (0, 125, 250, 375 and 500 μg g(-1))...
January 3, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28107426/identification-of-micrornas-in-response-to-drought-in-common-wild-rice-oryza-rufipogon-griff-shoots-and-roots
#3
Jing-Wen Zhang, Yan Long, Man-de Xue, Xing-Guo Xiao, Xin-Wu Pei
BACKGROUND: Drought is the most important factor that limits rice production in drought-prone environments. Plant microRNAs (miRNAs) are involved in biotic and abiotic stress responses. Common wild rice (Oryza rufipogon Griff.) contains abundant drought-resistant genes, which provide an opportunity to explore these excellent resources as contributors to improve rice resistance, productivity, and quality. RESULTS: In this study, we constructed four small RNA libraries, called CL and CR from PEG6000-free samples and DL and DR from PEG6000-treated samples, where 'R' indicates the root tissue and 'L' indicates the shoot tissue...
2017: PloS One
https://www.readbyqxmd.com/read/28106834/heat-stress-decreases-levels-of-nutrient-uptake-and-assimilation-proteins-in-tomato-roots
#4
Anju Giri, Scott Heckathorn, Sasmita Mishra, Charles Krause
Global warming will increase root heat stress, which is already common under certain conditions. Effects of heat stress on root nutrient uptake have rarely been examined in intact plants, but the limited results indicate that heat stress will decrease it; no studies have examined heat-stress effects on the concentration of nutrient-uptake proteins. We grew Solanum lycopersicum (tomato) at 25 °C/20 °C (day/night) and then transferred some plants for six days to 35 °C /30 °C (moderate heat) or 42 °C/37 °C (severe heat) (maximum root temperature = 32 °C or 39 °C, respectively); plants were then moved back to control conditions for seven days to monitor recovery...
January 19, 2017: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28106309/transposable-elements-tes-contribute-to-stress-related-long-intergenic-noncoding-rnas-in-plants
#5
Dong Wang, Zhipeng Qu, Lan Yang, Qingzhu Zhang, Zhi-Hong Liu, Trung Do, David L Adelson, Zhen-Yu Wang, Iain Searle, Jian-Kang Zhu
Noncoding RNAs have been extensively described in plant and animal transcriptomes by using high-throughput sequencing technology. Of these non-coding RNAs, a growing number of long intergenic noncoding RNAs (lincRNAs) have been described in multicellular organisms, however the origins and functions of many lincRNAs remain to be explored. In many eukaryotic genomes, transposable elements (TEs) are widely distributed and often account for large fractions of plant and animal genomes yet the contribution of TEs to lincRNAs is largely unknown...
January 20, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28106264/role-of-microbial-inoculation-and-industrial-by-product-phosphogypsum-on-growth-and-nutrients-uptake-of-maize-zea-mays-l-grown-in-calcareous-soil
#6
Abdul-Aziz R Al-Enazy, Saud S Al-Oud, Fahad N Al-Barakah, R A Adel, Usman
BACKGROUND: Alkaline soils with high calcium carbonate and low organic matter are deficient in plant nutrients availability. Use of organic and bio-fertilizers has been suggested to improve their properties. Therefore, a greenhouse experiment was conducted to evaluate the integrative role of phosphogypsum (PG; added at 0.0, 10, 30, and 50 g PG kg(-1) ), cow manure (CM; added at 50 g kg(-1) ) and mixed microbial inoculation (Incl; Azotobacter chroococcum, phosphate-solubilizing bacterium of Bacillus megaterium var...
January 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28105494/suicide-with-two-makes-of-captive-bolt-guns-livestock-stunners-fired-simultaneously-to-the-forehead
#7
Rebecca Pircher, Dorothee Geisenberger, Markus Große Perdekamp, Merja Neukamm, Stefan Pollak, Ulrike Schmidt, Annette Thierauf-Emberger
In humans, most fatalities from slaughterer's guns are suicides committed by persons familiar with stunning devices. The great majority of cases accounts for shots to the head, especially the frontal region. Only a small number of two subsequent cranial shots from captive-bolt humane killers have been reported up to now. In the case presented by the authors, a suicide by simultaneous shots to the head fired from two different makes of captive-bolt guns (one of them having two separate outlets for the combustion gases in the muzzle plane, the other type having no additional openings) is described for the first time...
January 20, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28104719/molecular-regulation-of-temperature-dependent-floral-induction-in-tulipa-gesneriana
#8
Hendrika Leeggangers, Harm Nijveen, Judit Nadal Bigas, Henk W M Hilhorst, Richard G H Immink
The vegetative to reproductive phase change in tulip is promoted by increasing temperatures during spring. The warm winters of recent years interfere with this process and are calling for new adapted cultivars. A better understanding of the underlying molecular mechanisms would be of help, but unlike the model plant Arabidopsis, very little is known about floral induction in tulip. To shed light on the gene regulatory network controlling flowering in tulip, RNA-sequencing was performed on meristem-enriched tissue collected under two contrasting temperature conditions, low and high...
January 19, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28103078/improvement-of-phytoremediation-of-an-aged-petroleum-hydrocarbon-contaminated-soil-by-rhodococcus-erythropolis-cd-106-strain
#9
Tomasz Płociniczak, Ewa Fic, Magdalena Pacwa-Płociniczak, Małgorzata Pawlik, Zofia Piotrowska-Seget
The aim of this study was to assess the impact of soil inoculation with the Rhodococcus erythropolis CD 106 strain on the effectiveness of the phytoremediation of an aged hydrocarbon-contaminated (approx. 1% TPH) soil using ryegrass (Lolium perenne). The introduction of CD 106 into the soil significantly increased the biomass of ryegrass and the removal of hydrocarbons in planted soil. The fresh weight of the shoots and roots of plants inoculated with CD 106 increased by 49 and 30%, respectively. After 210 days of the experiment, the concentration of TPH was reduced by 31...
January 19, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28103074/mass-shootings-the-role-of-the-media-in-promoting-generalized-imitation
#10
James N Meindl, Jonathan W Ivy
Mass shootings are a particular problem in the United States, with one mass shooting occurring approximately every 12.5 days. Recently a "contagion" effect has been suggested wherein the occurrence of one mass shooting increases the likelihood of another mass shooting occurring in the near future. Although contagion is a convenient metaphor used to describe the temporal spread of a behavior, it does not explain how the behavior spreads. Generalized imitation is proposed as a better model to explain how one person's behavior can influence another person to engage in similar behavior...
January 19, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28103071/bridging-the-response-to-mass-shootings-and-urban-violence-exposure-to-violence-in-new-haven-connecticut
#11
Alycia Santilli, Kathleen O'Connor Duffany, Amy Carroll-Scott, Jordan Thomas, Ann Greene, Anita Arora, Alicia Agnoli, Geliang Gan, Jeannette Ickovics
We have described self-reported exposure to gun violence in an urban community of color to inform the movement toward a public health approach to gun violence prevention. The Community Alliance for Research and Engagement at Yale School of Public Health conducted community health needs assessments to document chronic disease prevalence and risk, including exposure to gun violence. We conducted surveys with residents in six low-income neighborhoods in New Haven, Connecticut, using a neighborhood-stratified, population-based sample (n = 1189; weighted sample to represent the neighborhoods, n = 29 675)...
January 19, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28103062/academic-public-health-and-the-firearm-crisis-an-agenda-for-action
#12
Charles C Branas, Andrew Flescher, Margaret K Formica, Sandro Galea, Nils Hennig, Karen D Liller, Hala N Madanat, Andrew Park, John E Rosenthal, Jun Ying
Firearms have been a prevalent cause of morbidity and mortality in the United States since about the turn of the 20th century. Firearm deaths, including homicides, suicides, and unintentional shootings, generally increased from 1900 until the mid-1930s, dipped through the mid-1960s, and rose through the 1990s, reaching a plateau beginning in approximately 2000 that continues to the present. Motor vehicle deaths once far exceeded firearm deaths. However, thanks to investments in research and vehicle and roadway design, motor vehicle deaths have declined substantially and firearm deaths now stand to surpass them...
January 19, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28103027/isolation-colonization-and-chlorpyrifos-degradation-mediation-of-the-endophytic-bacterium-sphingomonas-strain-hjy-in-chinese-chive-allium-tuberosum
#13
Fayun Feng, Jing Ge, Yisong Li, Jinjin Cheng, Jianfeng Zhong, Xiangyang Yu
The interaction of endophyte-plant can benefit the host in many different ways. An endophytic bacterium strain (HJY) capable of degrading chlorpyrifos (CP) was isolated from Chinese chives (Allium tuberosum Rottl. ex Spreng). The isolated bacterium HJY classified as Sphingomonas sp. Strain HJY could use chlorpyrifos as the sole carbon source. After being marked with the gfp gene, the colonization and distribution of strain HJY-gfp was directly observed in different tissues of Chinese chives with confocal laser scanning microscope...
January 19, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28102551/foliar-uptake-of-radiocaesium-from-irrigation-water-by-paddy-rice%C3%A2-oryza-sativa-an-overlooked-pathway-in-contaminated-environments
#14
Shinichiro Uematsu, Hildegarde Vandenhove, Lieve Sweeck, May Van Hees, Jean Wannijn, Erik Smolders
Flooded (paddy) rice (Oryza sativa) can take up ions from the irrigation water by foliar uptake via the exposed stem base. We hypothesised that the stem base uptake of radiocaesium (RCs) is a pathway for rice grown in RCs-contaminated environments. We developed a bi-compartmental device which discriminates the stem base from root RCs uptake from solutions, thereby using RCs isotopes ((137) Cs and (134) Cs) with < 2% solution leak between the compartments. Radiocaesium uptake was linear over time (0-24 h)...
January 19, 2017: New Phytologist
https://www.readbyqxmd.com/read/28102498/variation-in-accumulation-and-translocation-of-di-n-butyl-phthalate-dbp-among-rice-oryza-sativa-l-genotypes-and-selection-of-cultivars-for-low-dbp-exposure
#15
Quan-Ying Cai, Pei-Yun Xiao, Hai-Ming Zhao, Huixiong Lü, Qiao-Yun Zeng, Yan-Wen Li, Hui Li, Lei Xiang, Ce-Hui Mo
Di-n-butyl phthalate (DBP) is a typical endocrine-disrupting chemical with higher detection frequency and concentration in agricultural soil (particularly in paddy-field soil of Guangdong Province) of China. In this study, a greenhouse experiment was conducted to investigate variation in uptake and accumulation of DBP by 20 rice cultivars and to screen low DBP-accumulating cultivars. DBP concentrations in plants varied greatly with rice cultivars, growth stages, and tissues. The highest DBP concentrations in both roots and shoots were observed at the ripening stage, with concentrations 2-100-fold higher than those at tillering, jointing, and flowering stages...
January 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28102497/regulated-partitioning-of-fixed-carbon-14-c-sodium-na-potassium-k-and-glycine-betaine-determined-salinity-stress-tolerance-of-gamma-irradiated-pigeonpea-cajanus-cajan-l-millsp
#16
Pankaj Kumar, Vasundhara Sharma, Chobhe Kapil Atmaram, Bhupinder Singh
Soil salinity is a major constraint that limits legume productivity. Pigeonpea is a salt sensitive crop. Seed gamma irradiation at a very low dose (2.5 Gy) is known to enhance seedling establishment, plant growth and yield of cereals and other crops. The present study conducted using two genetically diverse varieties of pigeonpea viz., Pusa-991 and Pusa-992 aimed at establishing the role of pre-sowing seed gamma irradiation at 0, 0.0025, 0.005, 0.01, 0.02, 0.05 and 0.1 kGy on plant growth, seed yield and seed quality under salt stress at 0, 80 and 100 mM NaCl (soil solution EC equivalent 1...
January 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28101788/embling-production-in-althaea-officinalis-l-through-somatic-embryogenesis-and-their-appraisal-via-histological-and-scanning-electron-microscopical-studies
#17
Ruphi Naz, Mohammad Anis, Abdulrahman A Alatar
In vitro propagation of a medicinally important plant, Althaea officinalis, has been achieved through somatic embryogenesis. Somatic embryos (globular to torpedo-shaped embryos) were induced on Murashige and Skoog's (MS) medium augmented with various concentrations of 2,4-dichlorophenoxyacetic acid (2,4-D, 5.0, 10.0, 15.0, 20.0, and 25.0) alone or combined with N6-benzylaminopurine (BA, 0.1, 0.5, 1.0, 1.5, and 2.0 μM). These were directly formed from the cut ends and subsequently spread on the whole surface of internodal explants...
January 18, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28098948/phosphorus-acquisition-efficiency-in-arbuscular-mycorrhizal-maize-is-correlated-with-the-abundance-of-root-external-hyphae-and-the-accumulation-of-transcripts-encoding-pht1-phosphate-transporters
#18
Ruairidh J H Sawers, Simon F Svane, Clement Quan, Mette Grønlund, Barbara Wozniak, Mesfin-Nigussie Gebreselassie, Eliécer González-Muñoz, Ricardo A Chávez Montes, Ivan Baxter, Jerome Goudet, Iver Jakobsen, Uta Paszkowski
Plant interactions with arbuscular mycorrhizal fungi have long attracted interest for their potential to promote more efficient use of mineral resources in agriculture. Their use, however, remains limited by a lack of understanding of the processes that determine the outcome of the symbiosis. In this study, the impact of host genotype on growth response to mycorrhizal inoculation was investigated in a panel of diverse maize lines. A panel of 30 maize lines was evaluated with and without inoculation with arbuscular mycorrhizal fungi...
January 18, 2017: New Phytologist
https://www.readbyqxmd.com/read/28098947/conservation-vs-divergence-in-leafy-and-apetala1-functions-between-arabidopsis-thaliana-and-cardamine-hirsuta
#19
Marie Monniaux, Sarah M McKim, Maria Cartolano, Emmanuel Thévenon, François Parcy, Miltos Tsiantis, Angela Hay
A conserved genetic toolkit underlies the development of diverse floral forms among angiosperms. However, the degree of conservation vs divergence in the configuration of these gene regulatory networks is less clear. We addressed this question in a parallel genetic study between the closely related species Arabidopsis thaliana and Cardamine hirsuta. We identified leafy (lfy) and apetala1 (ap1) alleles in a mutant screen for floral regulators in C. hirsuta. C. hirsuta lfy mutants showed a complete homeotic conversion of flowers to leafy shoots, mimicking lfy ap1 double mutants in A...
January 18, 2017: New Phytologist
https://www.readbyqxmd.com/read/28097399/segregation-for-fertility-and-meiotic-stability-in-novel-brassica-allohexaploids
#20
Margaret W Mwathi, Mehak Gupta, Chaya Atri, Surinder S Banga, Jacqueline Batley, Annaliese S Mason
Allohexaploid Brassica populations reveal ongoing segregation for fertility, while genotype influences fertility and meiotic stability. Creation of a new Brassica allohexaploid species is of interest for the development of a crop type with increased heterosis and adaptability. At present, no naturally occurring, meiotically stable Brassica allohexaploid exists, with little data available on chromosome behaviour and meiotic control in allohexaploid germplasm. In this study, 100 plants from the cross B. carinata × B...
January 17, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
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