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https://www.readbyqxmd.com/read/28650653/growth-and-metabolic-responses-of-rice-oryza-sativa-l-cultivated-in-phosphorus-deficient-soil-amended-with-tio2-nanoparticles
#1
Zahra Zahra, Naima Waseem, Rubab Zahra, Hwanhui Lee, Mohsin Ali Badshah, Arshad Mehmood, Hyung-Kyoon Choi, Muhammad Arshad
Plants have natural ability to withstand stress conditions through metabolic adjustments. The present study aimed at investigating effects of Titanium dioxide nanoparticles (TiO2 NPs) application (0, 25, 50, 150, 250, 500 and 750 mg kg-1) in phosphorus deficient soil in terms of growth responses, P contents and metabolic alterations in rice. TiO2 NPs application increased shoot length up to 14.5%. Phosphorus contents in rice roots, shoots, and grains were increased by 2.6-, 2.4-, and 1.3-fold, respectively at 750 mg kg-1 of TiO2 NPs...
June 26, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28643283/role-of-cation-structure-in-the-phytotoxicity-of-ionic-liquids-growth-inhibition-and-oxidative-stress-in-spring-barley-and-common-radish
#2
Robert Biczak, Barbara Pawłowska, Arkadiusz Telesiński, Janusz Kapuśniak
The present study determines the influence of three ionic liquids (ILs) containing cations with diversified structure on the growth and development of spring barley seedlings and common radish leaves. Increasing amounts of 1-butyl-1-methylpyrrolidinium hexafluorophosphate [Pyrrol][PF6], 1-butyl-1-methylpiperidinium hexafluorophosphate [Piper][PF6], and 1-butyl-4-methylpyridinium hexafluorophosphate [Pyrid][PF6] were added to the soil on which both plants were cultivated. The results of this studies showed that the applied ILs were highly toxic for plants, demonstrated by the inhibition of length of plant shoots and roots, decrease of fresh mass, and increase of dry weight content...
June 22, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28642968/enhancing-the-enzymatic-saccharification-of-bamboo-shoot-shell-by-sequential-biological-pretreatment-with-galactomyces-sp-cczu11-1-and-deep-eutectic-solvent-extraction
#3
Yong Dai, Hai-Sheng Zhang, Bin Huan, Yucai He
In this study, sequential biological pretreatment (BP) with Galactomyces sp. CCZU11-1 at 30 °C for 3 days and deep eutectic solvent (DES) choline chloride: oxalic acid (ChCl:OA, 1 mol/2 mol) extraction at 120 °C for 1.5 h was used for pretreating BSS. It was found that combination pretreatment could effectively remove xylan and lignin for enhancing enzymatic saccharification. The reducing sugars and glucose from the hydrolysis of 100 g/L pretreated BSS with complexed cellulases of Galactomyces sp. CCZU11-1 were obtained in the yields of 81...
June 22, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28630990/correction-the-true-effect-of-mass-shootings-on-americans
#4
(no author information available yet)
No abstract text is available yet for this article.
June 20, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28617857/variability-in-citxet-expression-and-xet-activity-in-citrus-cultivar-huangguogan-seedlings-with-differed-degrees-of-etiolation
#5
Bo Xiong, Xianjie Gu, Xia Qiu, Zhixiang Dong, Shuang Ye, Guochao Sun, Shengjia Huang, Xinya Liu, Lijuan Xi, Zhihui Wang
Considering the known effects of xyloglucan endotransglycosylase (XET) on plant growth and development, we aimed to determine whether XETs help to regulate the growth and elongation of Huangguogan shoots and roots. We confirmed a possible role for XET during seedling etiolation. Our results revealed that the roots of etiolated seedlings (H-E) were longer than those of green seedlings (H-G). However, shoot length exhibited the opposite pattern. We also observed positive and negative effects on the xyloglucan-degrading activity of XET in the root sub-apical region and shoots of etiolated Huangguogan seedling, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28616168/does-selection-on-horn-length-of-males-and-females-differ-in-protected-and-hunted-populations-of-a-weakly-dimorphic-ungulate
#6
Luca Corlatti, Ilse Storch, Flurin Filli, Pia Anderwald
Weaponry in ungulates may be costly to grow and maintain, and different selective pressures in males and females may lead to sex-biased natural survival. Sexual differences in the relationship between weapon growth and survival may increase under anthropogenic selection through culling, for example because of trophy hunting. Selection on weaponry growth under different scenarios has been largely investigated in males of highly dimorphic ungulates, for which survival costs (either natural or hunting related) are thought to be greatest...
June 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28611817/rational-water-and-nitrogen-management-improves-root-growth-increases-yield-and-maintains-water-use-efficiency-of-cotton-under-mulch-drip-irrigation
#7
Hongzhi Zhang, Aziz Khan, Daniel K Y Tan, Honghai Luo
There is a need to optimize water-nitrogen (N) applications to increase seed cotton yield and water use efficiency (WUE) under a mulch drip irrigation system. This study evaluated the effects of four water regimes [moderate drip irrigation from the third-leaf to the boll-opening stage (W1), deficit drip irrigation from the third-leaf to the flowering stage and sufficient drip irrigation thereafter (W2), pre-sowing and moderate drip irrigation from the third-leaf to the boll-opening stage (W3), pre-sowing and deficit drip irrigation from the third-leaf to the flowering stage and sufficient drip irrigation thereafter (W4)] and N fertilizer at a rate of 520 kg ha(-1) in two dressing ratios [7:3 (N1), 2:8 (N2)] on cotton root morpho-physiological attributes, yield, WUE and the relationship between root distribution and dry matter production...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28611401/a-diet-diverse-in-bamboo-parts-is-important-for-giant-panda-ailuropoda-melanoleuca-metabolism-and-health
#8
Hairui Wang, Heju Zhong, Rong Hou, James Ayala, Guangmang Liu, Shibin Yuan, Zheng Yan, Wenping Zhang, Yuliang Liu, Kailai Cai, Zhigang Cai, He Huang, Zhihe Zhang, De Wu
The aim of this study was to determine the metabolic response in giant pandas (Ailuropoda melanoleuca) to the consumption of certain parts of bamboo above ground growth. Giant pandas were provisioned with three species of bamboo: Phyllostachys bissetii, of which they only consume the culm (culm group); Bashania fargesii, of which they only consume the leaves (leaf group); and Qiongzhuea opienensis, of which they only consume the shoots (shoot group). The "culm" group absorbed the highest amount of calories and fiber, but was in short energy supply (depressed tricarboxylic acid cycle activity), and high fiber level diet might reduce the digestibility of protein...
June 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28600692/simultaneous-determination-of-pyrethroids-and-pyrethrins-by-dispersive-liquid-liquid-microextraction-and-liquid-chromatography-triple-quadrupole-mass-spectrometry-in-environmental-samples
#9
Alexander Ccanccapa-Cartagena, Ana Masiá, Yolanda Picó
A simple and environmentally friendly dispersive liquid-liquid microextraction (DLLME) method coupled with electrospray ionization liquid chromatography triple quadrupole mass spectrometry (LC-QqQ-MS/MS) was developed for the simultaneous determination of 17 synthetic and natural pyrethroids. A comparison of solid-phase extraction (SPE) versus DLLME for water samples and only "dilute and shoot" versus the additional extract cleanup by DLLME for sediment samples is reported. Chloroform was the extracting solvent in the DLLME technique for both water and sediment samples...
June 10, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28598222/pfca-uptake-and-translocation-in-dominant-wheat-species-triticum-aestivum-l
#10
Hongxia Zhao, Yue Guan, Baocheng Qu
The comparative uptake of four perfluorinated carboxylic acids (PFCAs) by wheat (Triticum aestivum L.) grown in nutrient solution was investigated. Wheat is the main food crop in northern China and may become a potential pathway of human exposure to these PFCAs. The uptake of four PFCAs from water at a fixed concentration (1 μg/mL) increased over time, approaching a steady state, and except for the short-chain perfluorobutanoic acid (PFBA), most of the total mass of each of the PFCAs taken up by wheat was found to be at the root...
June 9, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28597370/micropropagation-of-ajuga-species-a-mini-review
#11
REVIEW
Han Yong Park, Doo Hwan Kim, Iyyakkannu Sivanesan
The genus Ajuga L., belonging to Lamiaceae family, is widespread. The demand for Ajuga species has risen sharply because of their medicinal, ornamental, and pharmacological properties. These wide-ranging plants are being rapidly depleted due to over-collection for ornamental and medicinal purposes, as well as by habitat destruction and deforestation. Ajuga boninsimae, A. bracteosa, A. ciliate, A. genevensis, A. incisa, A. makinoi, A. multiflora, A. pyramidalis, A. shikotanensis, A. reptans, and A. vestita are categorized and protected as endangered plants...
June 8, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28585733/life-threat-and-sleep-disturbances-in-adolescents-a-two-year-follow-up-of-survivors-from-the-2011-ut%C3%A3-ya-norway-terror-attack
#12
Grønli Janne, Melinder Annika, Olga Therese Ousdal, Pallesen Ståle, Endestad Tor, Anne Marita Milde
A significant number of adolescents have been exposed to traumatic life events. However, knowledge about the specific sleep disturbance that occurs in individuals after trauma exposure is predominantly based on studies of adults. This study reports specific sleep disturbance in 42 survivors of the 2011 mass shooting at a youth summer camp on the Norwegian island Utøya, mean age = 20.91 years, SD = 2.32, 62.5% females. When compared with matched controls, significantly more survivors reported having sleep disturbances, 52...
June 6, 2017: Journal of Traumatic Stress
https://www.readbyqxmd.com/read/28576846/type-b-arabidopsis-response-regulators-is-critical-to-the-specification-of-shoot-stem-cell-niche-by-dual-regulation-of-wuschel
#13
Wenjing Meng, Zhi Juan Cheng, Ya Lin Sang, Miao Miao Zhang, Xiao Fei Rong, Zhi Wei Wang, Ying Ying Tang, Xian Sheng Zhang
Plants are known for their capacity to regenerate the whole body through de novo formation of apical meristems from a mass of proliferating cells named callus. Exogenous cytokinin and auxin determine cell fate for the establishment of the stem cell niche, which is the vital step of shoot regeneration, but the underlying mechanisms remain unclear. Here we show that type-B ARABIDOPSIS RESPONSE REGULATORs (ARRs), critical components of cytokinin signaling, activate the transcription of WUSCHEL (WUS), which encodes a key regulator for maintaining stem cells...
June 2, 2017: Plant Cell
https://www.readbyqxmd.com/read/28552954/scaling-relationships-of-twig-biomass-allocation-in-pinus-hwangshanensis-along-an-altitudinal-gradient
#14
Man Li, Yuan Zheng, RuiRui Fan, QuanLin Zhong, DongLiang Cheng
Understanding the response of biomass allocation in twigs (the terminal branches of current-year shoots) to environmental change is crucial for elucidating forest ecosystem carbon storage, carbon cycling, and plant life history strategies under a changing climate. On the basis of interspecies investigations of broad-leaved plants, previous studies have demonstrated that plants respond to environmental factors by allocating biomass in an allometric manner between support tissues (i.e., stems) and the leaf biomass of twigs, where the scaling exponent (i...
2017: PloS One
https://www.readbyqxmd.com/read/28545103/combined-effects-of-cotyledon-excision-and-nursery-fertilization-on-root-growth-nutrient-status-and-outplanting-performance-of-quercus-variabilis-container-seedlings
#15
Wenhui Shi, Mark Bloomberg, Guolei Li, Shuchai Su, Liming Jia
Artificial excision of the distal part of acorns in order to promote germination is well researched in oak seedling cultivation studies. However, studies of combined effects of cotyledon excision and nursery fertilization on container seedlings are lacking, especially for seedling root growth and outplanting performance. This study aimed to explore the main effects of cotyledon excision on Quercus variabilis seedling emergence characteristics and demonstrated the combined effects of cotyledon excision and nursery fertilization on seedling quality to improve Quercus variabilis seedling outplanting performance...
2017: PloS One
https://www.readbyqxmd.com/read/28542296/traders-guns-and-money-the-effects-of-mass-shootings-on-stock-prices-of-firearm-manufacturers-in-the-u-s
#16
Anandasivam Gopal, Brad N Greenwood
We investigate how mass shootings influence the stock price of firearms manufacturers. While it is well known that mass shootings lead to increased firearms sales, the response from financial markets is unclear. On one hand, given the observed short-term increase in demand, firearm stock prices may rise due to the unexpected financial windfall for the firm. On the other, mass shootings may result in calls for regulation of the industry, leading to divestment of firearms stocks in spite of short-term demand...
2017: PloS One
https://www.readbyqxmd.com/read/28537842/-invisible-during-my-own-crisis-responses-of-lgbt-people-of-color-to-the-orlando-shooting
#17
Johanna L Ramirez, Kirsten A Gonzalez, M Paz Galupo
On June 12, 2016, the Pulse nightclub in Orlando, Florida was the target of one of the country's deadliest mass shootings. Pulse, a gay nightclub, was hosting a Latin Pride Night the evening of the tragedy, which resulted in the death of 49 victims and 53 casualties, over 90% of whom were lesbian, gay, bisexual, and transgender (LGBT) Latinx people, specifically. The present research investigates the narrative responses from LGBT people of color (LGBT-POC) following the tragedy. Results included an analysis of 94 participant narrative responses...
May 24, 2017: Journal of Homosexuality
https://www.readbyqxmd.com/read/28527016/chemical-derivatization-of-metabolite-mass-profiling-of-the-recretohalophyte-aeluropus-lagopoides-revealing-salt-stress-tolerance-mechanism
#18
Murali Krishna Paidi, Parinita Agarwal, Prashant More, Pradeep K Agarwal
Plants are the primary producers of food for human being. Their intracellular environment alternation is influenced by abiotic stress factors such as drought, heat and soil salinity. Aeluropus lagopoides is a strong halophyte that grows with ease under high saline muddy banks of creeks of Gujarat, India. To study the response of salinity on metabolite changes in Aeluropus, three treatments, i.e. control, salinity and recovery, were selected for both shoot and root tissue. The cytosolic metabolite state was analysed by molecular chemical derivatization gas chromatography mass profiling...
May 19, 2017: Marine Biotechnology
https://www.readbyqxmd.com/read/28521508/the-phytoprotective-effects-of-arbuscular-mycorrhizal-fungi-on-enterolobium-contorstisiliquum-vell-morong-in-soil-containing-coal-mine-tailings
#19
Marcos Leandro Dos Santos, Cláudio Roberto Fonsêca Sousa Soares, Jucinei José Comin, Paulo Emílio Lovato
The purpose of this study was to evaluate effects of arbuscular mycorrhizal fungi (AMF) on pacara earpod tree (Enterolobium contorstisiliquum) growth and phytoprotection in soil containing coal mining waste. A greenhouse experiment was carried out with three inoculation treatments groups (non-inoculated, inoculated with Rhizophagus clarus and inoculated with Acaulospora colombiana) in two substrates (0 or 30% tailings). After 90 days the seedlings were collected to quantify growth parameters, quality, mycorrhizal root colonization rate and leaf content of chlorophylls and carotenoids...
May 19, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28473836/quantitative-genetic-analysis-reveals-potential-to-genetically-improve-fruit-yield-and-drought-resistance-simultaneously-in-coriander
#20
Mostafa Khodadadi, Hamid Dehghani, Mokhtar Jalali Javaran
Enhancing water use efficiency of coriander (Coriandrum sativum L.) is a major focus for coriander breeding to cope with drought stress. The purpose of this study was; (a) to identify the predominant mechanism(s) of drought resistance in coriander and (b) to evaluate the genetic control mechanism(s) of traits associated with drought resistance and higher fruit yield. To reach this purpose, 15 half-diallel hybrids of coriander and their six parents were evaluated under well-watered and water deficit stressed (WDS) in both glasshouse lysimetric and field conditions...
2017: Frontiers in Plant Science
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