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https://www.readbyqxmd.com/read/29243826/gsslah3-a-glycine-soja-slow-type-anion-channel-homologue-positively-modulates-plant-bicarbonate-stress-tolerance
#1
Xiangbo Duan, Yang Yu, Huizi Duanmu, Chao Chen, Xiaoli Sun, Lei Cao, Qiang Li, Xiaodong Ding, Beidong Liu, Yanming Zhu
Alkaline stress is a major form of abiotic stress that severely inhibits plant growth and development, thus restricting crop productivity. However, little is known about how plants respond to alkali. In this study, a slow-type anion channel homologue 3 gene GsSLAH3 was isolated and functionally characterized. Bioinformatics analysis showed that GsSLAH3 protein contains ten transmembrane helices. Consistently, GsSLAH3 was found to locate on plasma membrane by transient expression in onion epidermal cells. In wild soybeans, GsSLAH3 expression was induced by NaHCO3 treatment, suggesting its involvement in plant response to alkaline stress...
December 15, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/29241559/mir393-inhibits-in-vitro-shoot-regeneration-in-arabidopsis-thaliana-via-repressing-tir1
#2
Long Wang, Zhenhua Liu, Meng Qiao, Fengning Xiang
A large number of genes are involved in the control of shoot regeneration from in vitro cultured plant material. The abundance of the miR393 was different between regenerable and non-regenerable calli induced from Arabidopsis thaliana explants. The regenerability of root explants derived from p35S:miR393a (the miR393a over-expressing line) was shown here to be poorer than that of the wild type (WT). Also, explants derived from plants engineered to constitutively express MIM393 (a mutated form of miR393) had an enhanced level of shoot regeneration...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241293/in-vivo-delivery-of-nanoparticles-into-plant-leaves
#3
Honghong Wu, Israel Santana, Joshua Dansie, Juan P Giraldo
Plant nanobiotechnology is an interdisciplinary field at the interface of nanotechnology and plant biology that aims to utilize nanomaterials as tools to study, augment or impart novel plant functions. The delivery of nanoparticles to plants in vivo is a key initial step to investigate plant nanoparticle interactions and the impact of nanoparticles on plant function. Quantum dots are smaller than plant cell wall pores, have versatile surface chemistry, bright fluorescence and do not photobleach, making them ideal for the study of nanoparticle uptake, transport, and distribution in plants by widely available confocal microscopy tools...
December 14, 2017: Current Protocols in Chemical Biology
https://www.readbyqxmd.com/read/29241131/subcellular-distribution-and-chemical-form-of-phosphorus-involved-in-alleviating-phosphorus-toxicity-of-the-phosphorus-accumulator-polygonum-hydropiper
#4
Daihua Ye, Tingxuan Li, Xizhou Zhang, Zicheng Zheng
Polygonum hydropiper is a dominant plant species in Shifang phosphorus (P) mine area and is a promising P-accumulator used for P-phytoextraction. To date, little information is available on the physiological response involved in alleviating P toxicity of P. hydropiper under high P. A pot experiment was carried out to investigate growth, P subcellular distribution, chemical forms in two ecotypes of P. hydropiper under high levels (1, 4, and 8 mmol P L-1) of inorganic P (Pi) and organic P (Po), supplied as KH2PO4 and myo-inositol hexaphosphoric acid dodecasodium salt, respectively...
December 6, 2017: Chemosphere
https://www.readbyqxmd.com/read/29241066/agronomic-efficiency-of-phosphate-fertilizers-produced-by-the-re-use-of-a-metallurgical-acid-residue
#5
Matheus Sampaio Carneiro Barreto, Edson Marcio Mattiello, Wedisson Oliveira Santos, Leônidas Carrijo Azevedo Melo, Leonardus Vergütz, Roberto Ferreira Novais
The production of fertilizers with industrial wastes reduces the environmental impacts of waste disposal and improves environmental sustainability by generating added-value products. Our objective with this study was to evaluate the agronomic performance and potential soil/plant contamination with heavy metals of alternative phosphate (P) fertilizers, obtained from the acidulation of phosphate rocks (PR) by a metallurgical acidic waste. Seven P fertilizers were evaluated: three PR (Araxá, Patos, and Bayóvar), their respective acidulated products (PAPR), and triple superphosphate fertilizer (TSP)...
December 11, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29240311/systemic-changes-in-photosynthesis-and-ros-homeostasis-in-shoots-of-arabidopsis-thaliana-infected-with-beet-cyst-nematode-heterodera-schachtii
#6
Mateusz Labudda, Elżbieta Różańska, Weronika Czarnocka, Mirosław Sobczak, Jolanta Maria Dzik
Photosynthetic efficiency and redox homeostasis are important for plant physiological processes during regular development as well as defence responses. The second-stage juveniles of the Heterodera schachtii, induce syncytial feeding sites in host roots. To ascertain whether development of the syncytia alters photosynthesis and metabolism of ROS, chlorophyll a fluorescence measurements and antioxidant responses were studied in Arabidopsis thaliana shoots at the day of inoculation and at 3, 7 and 15 days post-inoculation (dpi)...
December 14, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/29238397/a-method-to-generate-the-surface-cell-layer-of-the-3d-virtual-shoot-apex-from-apical-initials
#7
Krzysztof Kucypera, Marcin Lipowczan, Anna Piekarska-Stachowiak, Jerzy Nakielski
Background: The development of cell pattern in the surface cell layer of the shoot apex can be investigated in vivo by use of a time-lapse confocal images, showing naked meristem in 3D in successive times. However, how this layer is originated from apical initials and develops as a result of growth and divisions of their descendants, remains unknown. This is an open area for computer modelling. A method to generate the surface cell layer is presented on the example of the 3D paraboloidal shoot apical dome...
2017: Plant Methods
https://www.readbyqxmd.com/read/29238356/arbuscular-mycorrhizal-fungus-enhances-lateral-root-formation-in-poncirus-trifoliata-l-as-revealed-by-rna-seq-analysis
#8
Weili Chen, Juan Li, Honghui Zhu, Pengyang Xu, Jiezhong Chen, Qing Yao
Arbuscular mycorrhizal fungi (AMF) establish symbiosis with most terrestrial plants, and greatly regulate lateral root (LR) formation. Phosphorus (P), sugar, and plant hormones are proposed being involved in this regulation, however, no global evidence regarding these factors is available so far, especially in woody plants. In this study, we inoculated trifoliate orange seedlings (Poncirus trifoliata L. Raf) with an AMF isolate, Rhizophagus irregularis BGC JX04B. After 4 months of growth, LR formation was characterized, and sugar contents in roots were determined...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29238274/hormetic-response-by-silver-nanoparticles-on-in-vitro-multiplication-of-sugarcane-saccharum-spp-cv-mex-69-290-using-a-temporary-immersion-system
#9
Jericó J Bello-Bello, Rocío A Chavez-Santoscoy, Carlos A Lecona-Guzmán, Nina Bogdanchikova, Josafhat Salinas-Ruíz, Fernando Carlos Gómez-Merino, Alexey Pestryakov
Background: Hormesis is considered a dose-response phenomenon characterized by growth stimulation at low doses and inhibition at high doses. The hormetic response by silver nanoparticles (AgNPs) on in vitro multiplication of sugarcane was evaluated using a temporary immersion system. Methods: Sugarcane shoots were used as explants cultured in Murashige and Skoog medium with AgNPs at concentrations of 0, 25, 50, 100, and 200 mg/L. Shoot multiplication rate and length were used to determine hormetic response...
October 2017: Dose-response: a Publication of International Hormesis Society
https://www.readbyqxmd.com/read/29237795/the-headache-of-terror-a-matched-cohort-study-of-adolescents-from-the-ut%C3%A3-ya-and-the-hunt-study
#10
Synne Øien Stensland, John-Anker Zwart, Tore Wentzel-Larsen, Grete Dyb
OBJECTIVE: To elaborate the risk of headache among adolescent survivors exposed to terror. METHODS: On July 22, 2011, a lone man opened gunfire, killing 69 people at a summer camp for adolescents on the Utøya islet in Norway. All 358 adolescent survivors 13 to 20 years of age were invited to participate in the Utøya interview study. Among the 213 (59%) respondents, half (49%) were male, the mean age was 17.7 years, and 13 (6%) were severely injured. For each survivor, 8 matched controls were drawn from the population-based Young-HUNT3 Study, conducted between 2006 and 2008, with a participation rate of 73%...
December 13, 2017: Neurology
https://www.readbyqxmd.com/read/29237327/studies-on-conversion-of-waste-nitramine-and-fuel-rich-based-propellants-into-liquid-fertilizer
#11
Abirami S Anu, Kashinath I Dhabbe, Prashant S Kulkarni, Mehilal Mehilal
The current demilitarization processes employs open burning /open detonation which is not permitted by the environmental protection agency. Therefore, a systematic study has been carried out to convert waste/rejected nitramine and fuel rich based propellants into liquid fertilizer by digesting in dilute nitric acid followed by neutralization with potassium hydroxide and phosphoric acid. The obtained liquid fertilizers were fully characterised for nitrate, phosphate and ammonium ions along with potassium. Further, the effect of liquid fertilizers of nitramine propellant and fuel rich propellant on cluster bean plants was studied by taking in different concentrations from 25 mL to 150 mL, and their effect on germination pattern, shoots growth, thickness of stem, size and number of leaves, number of pods and length over a full grown period of plants were investigated...
December 14, 2017: Environmental Technology
https://www.readbyqxmd.com/read/29236706/contrasting-amino-acid-profiles-among-permissive-and-non-permissive-hosts-of-candidatus-liberibacter-asiaticus-putative-causal-agent-of-huanglongbing
#12
Mamoudou Sétamou, Olufemi J Alabi, Catherine R Simpson, John L Jifon
Huanglongbing is a devastating disease of citrus. In this study, a comprehensive profile of phloem sap amino acids (AA) in four permissive host plants of Candidatus Liberibacter asiaticus (CLas) and three non-permissive Rutaceae plants was conducted to gain a better understanding of host factors that may promote or suppress the bacterium. The AA profiles of Diaphorina citri nymphs and adults were similarly analyzed. A total of 38 unique AAs were detected in phloem sap of the various plants and D. citri samples, with phloem sap of young shoots containing more AAs and at higher concentrations than their mature counterparts...
2017: PloS One
https://www.readbyqxmd.com/read/29234458/robust-genetic-transformation-of-sorghum-sorghum-bicolor-l-using-differentiating-embryogenic-callus-induced-from-immature-embryos
#13
Srinivas Belide, Thomas Vanhercke, James Robertson Petrie, Surinder Pal Singh
Background: Sorghum (Sorghum bicolor L.) is one of the world's most important cereal crops grown for multiple applications and has been identified as a potential biofuel crop. Despite several decades of study, sorghum has been widely considered as a recalcitrant major crop for transformation due to accumulation of phenolic compounds, lack of model genotypes, low regeneration frequency and loss of regeneration potential through sub-cultures. Among different explants used for genetic transformation of sorghum, immature embryos are ideal over other explants...
2017: Plant Methods
https://www.readbyqxmd.com/read/29234387/antioxidant-activity-of-a-geopropolis-from-northeast-brazil-chemical-characterization-and-likely-botanical-origin
#14
Joselena M Ferreira, Caroline C Fernandes-Silva, Antonio Salatino, Dejair Message, Giuseppina Negri
Geopropolis is a product containing wax, plant resin, and soil particles. It is elaborated by stingless bees of tribe Meliponini. Methanol extracts of sample of geopropolis produced by Scaptotrigona postica ("mandaguari") in the state of Rio Grande do Norte (RN, northeast Brazil) were analyzed for the determination of standard parameters (total phenols, total flavonoids, and radical scavenging activity) and chemical characterization by HPLC-DAD-MS/MS analysis. The sample analyzed has high contents of total phenols and flavonoids, as well as high antioxidant activity...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234342/melatonin-is-involved-in-regulation-of-bermudagrass-growth-and-development-and-response-to-low-k-stress
#15
Liang Chen, Jibiao Fan, Zhengrong Hu, Xuebing Huang, Erick Amombo, Ao Liu, Aoyue Bi, Ke Chen, Yan Xie, Jinmin Fu
Melatonin (N-acetyl-5-methoxytryptamine) plays critical roles in plant growth and development and during the response to multiple abiotic stresses. However, the roles of melatonin in plant response to K+ deficiency remain largely unknown. In the present study, we observed that the endogenous melatonin contents in bermudagrass were remarkably increased by low K+ (LK) treatment, suggesting that melatonin was involved in bermudagrass response to LK stress. Further phenotype analysis revealed that exogenous melatonin application conferred Bermudagrass enhanced tolerance to LK stress...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29234337/community-profiling-of-fusarium-in-combination-with-other-plant-associated-fungi-in-different-crop-species-using-smrt-sequencing
#16
Florian Walder, Klaus Schlaeppi, Raphaël Wittwer, Alain Y Held, Susanne Vogelgsang, Marcel G A van der Heijden
Fusarium head blight, caused by fungi from the genus Fusarium, is one of the most harmful cereal diseases, resulting not only in severe yield losses but also in mycotoxin contaminated and health-threatening grains. Fusarium head blight is caused by a diverse set of species that have different host ranges, mycotoxin profiles and responses to agricultural practices. Thus, understanding the composition of Fusarium communities in the field is crucial for estimating their impact and also for the development of effective control measures...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29232962/meaning-in-hoarding-perspectives-of-people-who-hoard-on-clutter-culture-and-agency
#17
David M R Orr, Michael Preston-Shoot, Suzy Braye
Hoarding has become increasingly prominent in clinical practice and popular culture in recent years, giving rise to extensive research and commentary. Critical responses in the social sciences have criticised the cultural assumptions built in to the construct of 'hoarding disorder' and expressed fears that it may generate stigma outweighing its benefits; however, few of these studies have engaged directly with 'hoarders' themselves. This paper reports on in-depth, semi-structured interviews with 10 individuals living in England, who received assessment and intervention for hoarding from Social Services...
December 12, 2017: Anthropology & Medicine
https://www.readbyqxmd.com/read/29232909/synergistic-effects-of-bacillus-amyloliquefaciens-gb03-and-water-retaining-agent-on-drought-tolerance-of-perennial-ryegrass
#18
An-Yu Su, Shu-Qi Niu, Yuan-Zheng Liu, Ao-Lei He, Qi Zhao, Paul W Paré, Meng-Fei Li, Qing-Qing Han, Sardar Ali Khan, Jin-Lin Zhang
Water retaining agent (WRA) is widely used for soil erosion control and agricultural water saving. Here, we evaluated the effects of the combination of beneficial soil bacterium Bacillus amyloliquefaciens strain GB03 and WRA (the compound is super absorbent hydrogels) on drought tolerance of perennial ryegrass (Lolium perenne L.). Seedlings were subjected to natural drought for maximum 20 days by stopping watering and then rewatered for seven days. Plant survival rate, biomass, photosynthesis, water status and leaf cell membrane integrity were measured...
December 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29230086/psychometric-study-of-the-pain-drawing
#19
Lisa H Trahan, Emily Cox-Martin, Carrie E Johnson, Patrick M Dougherty, Jun Yu, Lei Feng, Christina Cook, Diane M Novy
Purpose: The objectives of the study were to (1) assess the extent to which interrater reliability of pain drawing location and dispersion scoring methods are similar across pain disciplines in a sample of patients with cancer treatment-induced neuropathic pain (N = 56) and (2) investigate indicators of validity of the pain drawing in this unique sample. Methods: Patients undergoing cancer therapy completed the Brief Pain Inventory Body Map, the MD Anderson Symptom Inventory, and the McGill Pain Questionnaire...
December 2017: Journal of Applied Biobehavioral Research
https://www.readbyqxmd.com/read/29229696/the-slcbl10-calcineurin-b-like-protein-ensures-plant-growth-under-salt-stress-by-regulating-na-and-ca2-homeostasis
#20
Isabel Egea, Benito Pineda, Ana Ortíz-Atienza, Félix A Plasencia, Stephanie Drevensek, Begoña García-Sogo, Fernando J Yuste-Lisbona, Javier Barrero, Alejandro Atarés, Francisco B Flores, Fredy Barneche, Trinidad Angosto, Carmen Capel, Julio Salinas, Wim Vriezen, Elisabeth Esch, Chris Bowler, Maria C Bolarin, Vicente Moreno, Rafael Lozano
Characterization of a new tomato T-DNA mutant allowed for the isolation of the CALCINEURIN B-LIKE PROTEIN 10 (SlCBL10) gene whose lack of function was responsible for the severe alterations observed in the shoot apex and reproductive organs under salinity conditions. Physiological studies proved that SlCBL10 gene is required to maintain a proper low Na+/Ca2+ ratio in growing tissues allowing tomato growth under salt stress. Expression analysis of the main responsible genes for Na+ compartmentalization [i.e...
December 11, 2017: Plant Physiology
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