keyword
MENU ▼
Read by QxMD icon Read
search

Flowers

keyword
https://www.readbyqxmd.com/read/27936159/the-effect-of-altered-soil-moisture-on-hybridization-rate-in-a-crop-wild-system-raphanus-spp
#1
Lesley G Campbell, Kruti Shukla, Michelle E Sneck, Colleen Chaplin, Kristin L Mercer
Since plant mating choices are flexible and responsive to the environment, rates of spontaneous hybridization may vary across ecological clines. Developing a robust and predictive framework for rates of plant gene flow requires assessing the role of environmental sensitivity on plant reproductive traits, relative abundance, and pollen vectors. Therefore, across a soil moisture gradient, we quantified pollinator movement, life-history trait variation, and unidirectional hybridization rates from crop (Raphanus sativus) to wild (Raphanus raphanistrum) radish populations...
2016: PloS One
https://www.readbyqxmd.com/read/27936072/delonix-regia-leaf-extract-drle-a-potential-therapeutic-agent-for-cardioprotection
#2
Lung-Shuo Wang, Chun-Ting Lee, Wei-Lieh Su, Shih-Che Huang, Shu-Chi Wang
Delonix regia (Boj. Ex. Hook) is a flowering plant in the pea family found in tropical areas and its leaves are used informally to treat diseases in folk medicine. However, the cardioprotective effects in this plant are still unclear. In this study, we found that the Delonix regia leaf extract (DRLE) (400 mg/kg/d) can reduce the mortality rate in an isoproterenol (ISO)-induced heart injury and hypertrophy mouse model. Decreased serum levels of creatine phosphokinase, LDH, GOT, TNF-alpha and increased nitric oxide levels were found in DRLE-treated ISO-injured mice...
2016: PloS One
https://www.readbyqxmd.com/read/27935668/chemical-composition-antimicrobial-and-insecticidal-activities-of-flowers-essential-oils-of-alpinia-zerumbet-pers-from-martinique-island
#3
Audrey Kerdudo, Emy Njoh Ellong, Pauline Burger, Vanessa Gonnot, Laurent Boyer, Fabrice Chandre, Sandra Adenet, Katia Rochefort, Thomas Michel, Xavier Fernandez
Alpinia species, used as ornamental plants and flavoring agents, are renowned for their therapeutic properties and their subsequent use in traditional medicines throughout the world. Alpinia zerumbet (Pers.) B.L. Burtt & R.M. Sm. is the most common Alpinia species encountered in Martinique. Several essential oils (EOs) obtained by hydrodistillation of A. zerumbet flowers collected in various locations on the island at different seasons were analysed to evaluate the influence of the collection period and area on the EOs' chemical compositions and to assess their bioactivity...
December 9, 2016: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/27935661/bee-communities-along-a-prairie-restoration-chronosequence-similar-abundance-and-diversity-distinct-composition
#4
Rebecca K Tonietto, John S Ascher, Daniel J Larkin
Recognition of the importance of bee conservation has grown in response to declines of managed honey bees and some wild bee species. Habitat loss has been implicated as a leading cause of declines, suggesting that ecological restoration is likely to play an increasing role in bee conservation efforts. In the Midwestern USA, restoration of tallgrass prairie has traditionally targeted plant community objectives without explicit consideration for bees. However, restoration of prairie vegetation is likely to provide ancillary benefits to bees through increased foraging and nesting resources...
December 9, 2016: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/27935643/plant-herbivore-synchrony-and-selection-on-plant-flowering-phenology
#5
Elsa Fogelström, Martin Olofsson, Diana Posledovich, Christer Wiklund, Johan Petter Dahlgren, Johan Ehrlén
Temporal variation in natural selection has profound effects on the evolutionary trajectories of populations. One potential source of variation in selection is that differences in thermal reaction norms and temperature influence the relative phenology of interacting species. We manipulated the phenology of the butterfly herbivore Anthocharis cardamines relative to genetically identical populations of its host plant, Cardamine pratensis, and examined the effects on butterfly preferences and selection acting on the host plant...
December 9, 2016: Ecology
https://www.readbyqxmd.com/read/27934178/zinc-oxide-flower-like-nanostructures-that-exhibit-enhanced-toxicology-effects-in-cancer-cells
#6
Iêda M M Paino, Fernanda J Gonçalves, Flavio L Souza, Valtencir Zucolotto
Nanostructured zinc oxide (ZnO) materials have been intensively studied because of their potential applications in cancer therapies. However, a better comprehension of the toxicity of the flower-like ZnO nanostructures toward cancer cells is still needed. In this study, we investigate the cytotoxicity of a ZnO flower-like nanostructure produced at low temperature via aqueous solution in human cervical carcinoma (HeLa) cells and noncancerous cell-line murine fibroblast (L929) cells. Nanotoxicology effects were analyzed to study apoptosis and necrosis processes, reactive oxygen species production, and cellular uptake...
December 7, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27933823/graphene-oxide-directed-one-step-synthesis-of-flowerlike-graphene-hkust-1-for-enzyme-free-detection-of-hydrogen-peroxide-in-biological-samples
#7
Qingxiang Wang, Yizhen Yang, Feng Gao, Jiancong Ni, Yanhui Zhang, Zhenyu Lin
A novel metal-organic framework (MOF)-based electroactive nanocomposite containing graphene fragments and HKUST-1 was synthesized via a facile one-step solvothermal method using graphene oxide (GO), benzene-1,3,5-tricarboxylic acid (BTC), and copper nitrate (Cu(NO3)2) as the raw materials. The morphology and structure characterization revealed that the GO could induce the transformation of HKUST-1 from octahedral structure to the hierarchical flower shape as an effective structure-directing agent. Also, it is interesting to find out that the GO was torn into small fragments to participate in the formation of HKUST-1 and then transformed into the reduction form during the solvothermal reaction process, which dramatically increased the surface area, electronic conductivity, and redox-activity of the material...
November 30, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27933080/identification-of-a-dolabellane-type-diterpene-synthase-and-other-root-expressed-diterpene-synthases-in-arabidopsis
#8
Qiang Wang, Meirong Jia, Jung-Hyun Huh, Andrew Muchlinski, Reuben J Peters, Dorothea Tholl
Arabidopsis thaliana maintains a complex metabolism for the production of secondary or specialized metabolites. Such metabolites include volatile and semivolatile terpenes, which have been associated with direct and indirect defensive activities in flowers and leaves. In comparison, the structural diversity and function of terpenes in Arabidopsis roots has remained largely unexplored despite a substantial number of root-expressed genes in the Arabidopsis terpene synthase (TPS) gene family. We show that five root-expressed TPSs of an expanded subfamily-a type clade in the Arabidopsis TPS family function as class I diterpene synthases that predominantly convert geranylgeranyl diphosphate (GGPP) to different semi-volatile diterpene products, which are in part detectable at low levels in the ecotypes Columbia (Col) and Cape Verde Island (Cvi)...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27933075/a-non-specific-setaria-italica-lipid-transfer-protein-gene-plays-a-critical-role-under-abiotic-stress
#9
Yanlin Pan, Jianrui Li, Licong Jiao, Cong Li, Dengyun Zhu, Jingjuan Yu
Lipid transfer proteins (LTPs) are a class of cysteine-rich soluble proteins having small molecular weights. LTPs participate in flower and seed development, cuticular wax deposition, also play important roles in pathogen and abiotic stress responses. A non-specific LTP gene (SiLTP) was isolated from a foxtail millet (Setaria italica) suppression subtractive hybridization library enriched for differentially expressed genes after abiotic stress treatments. A semi-quantitative reverse transcriptase PCR analysis showed that SiLTP was expressed in all foxtail millet tissues...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27931157/biotransformation-of-lignan-glycoside-to-its-aglycone-by-woodfordia-fruticosa-flowers-quantification-of-compounds-using-a-validated-hptlc-method
#10
Shikha Mishra, Vidhu Aeri
CONTEXT: Saraca asoca Linn. (Caesalpiniaceae) is an important traditional remedy for gynaecological disorders and it contains lyoniside, an aryl tetralin lignan glycoside. The aglycone of lyoniside, lyoniresinol possesses structural similarity to enterolignan precursors which are established phytoestrogens. OBJECTIVES: This work illustrates biotransformation of lyoniside to lyoniresinol using Woodfordia fruticosa Kurz. (Lythraceae) flowers and simultaneous quantification of lyoniside and lyoniresinol using a validated HPTLC method...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27931115/secretory-structures-and-essential-oil-composition-in-stachys-officinalis-l-trevisan-subsp-officinalis-lamiaceae-from-italy
#11
Claudia Giuliani, Roberto Maria Pellegrino, Roberta Selvaggi, Corrado Tani, Bruno Tirillini, Laura Maleci Bini
The secretory structures and the volatile fraction of Stachys officinalis (L.) Trevisan subsp. officinalis (Lamiaceae) from Italy were studied for the first time. Peltate and small capitate trichomes were observed on the whole plant (leaves and inflorescences). In the peltate trichomes, an unusual polyphenols content was evidenced by the histochemical methods. The volatile fraction was obtained by a solvent extract from the distillation water of leaves and inflorescences and analysed by GC-MS. Forty-four constituents for leaves, representing 94...
December 8, 2016: Natural Product Research
https://www.readbyqxmd.com/read/27931002/3d-hierarchical-flower-like-nickel-ferrite-manganese-dioxide-toward-lead-ii-removal-from-aqueous-water
#12
Bo Xiang, Dong Ling, Han Lou, Hongbo Gu
A functionalized magnetic nickel ferrite/manganese dioxide (NiFe2O4/MnO2) with 3D hierarchical flower-like and core-shell structure was synthesized by a facile hydrothermal approach and applied for the removal of Pb(II) ions from aqueous solutions. Batch adsorption experiments were conducted to study the effect of solution pH, initial Pb(II) concentration, and dose of absorbents on the Pb(II) removal by NiFe2O4/MnO2. The NiFe2O4/MnO2 nanocomposites showed the fast Pb(II) adsorption performance with the maximum adsorption capacity of 85...
November 4, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27930976/nephro-protective-effect-of-a-novel-formulation-of-unopened-coconut-inflorescence-sap-powder-on-gentamicin-induced-renal-damage-by-modulating-oxidative-stress-and-inflammatory-markers
#13
Svenia P Jose, Asha S, Krishnakumar Im, Ratheesh M, Savitha Santhosh, Sandya S, Girish Kumar B, Pramod C
Fresh oyster white translucent sap obtained from the tender unopened inflorescence of coconut trees (Cocos nucifera) is identified to have great health benefits. Drug induced Nephrotoxicity is one of the major causes of renal damage in present generation. As a therapeutic agent, gentamicin imparts direct toxicity to kidney, resulting in acute tubular necrosis, glomerular and tubulointerstitial injury, haemodynamically mediated damage and obstructive nephropathy.There exists an increasing demand for safe and natural agents for the treatment and/or preventionofchronic nephrotoxicity and pathogenesis of kidney diseases...
December 5, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27930340/powerdress-and-hda9-interact-and-promote-histone-h3-deacetylation-at-specific-genomic-sites-in-arabidopsis
#14
Yun Ju Kim, Ruozhong Wang, Lei Gao, Dongming Li, Chi Xu, Hyunggon Mang, Jien Jeon, Xiangsong Chen, Xuehua Zhong, June M Kwak, Beixin Mo, Langtao Xiao, Xuemei Chen
Histone acetylation is a major epigenetic control mechanism that is tightly linked to the promotion of gene expression. Histone acetylation levels are balanced through the opposing activities of histone acetyltransferases (HATs) and histone deacetylases (HDACs). Arabidopsis HDAC genes (AtHDACs) compose a large gene family, and distinct phenotypes among AtHDAC mutants reflect the functional specificity of individual AtHDACs However, the mechanisms underlying this functional diversity are largely unknown. Here, we show that POWERDRESS (PWR), a SANT (SWI3/DAD2/N-CoR/TFIII-B) domain protein, interacts with HDA9 and promotes histone H3 deacetylation, possibly by facilitating HDA9 function at target regions...
December 5, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27928252/effects-of-passion-flower-extract-as-an-add-on-treatment-to-sertraline-on-reaction-time-in-patients-%C3%A2-with-generalized-anxiety-disorder-a-double-blind-placebo-controlled-study
#15
Mandana Nojoumi, Padideh Ghaeli, Samrand Salimi, Ali Sharifi, Firoozeh Raisi
Objective: Because of functional impairment caused by generalized anxiety disorder and due to cognitive side ‎effects of many anti-anxiety agents, in this study we aimed to evaluate the influence of Passion ‎flower standardized extract on reaction time in patients with generalized anxiety disorder.‎ Method: Thirty patients aged 18 to 50 years of age, who were diagnosed with generalized anxiety disorder and ‎fulfilled the study criteria, entered this double-blind placebo-controlled study. Reaction time was ‎measured at baseline and after one month of treatment using computerized software...
July 2016: Iranian Journal of Psychiatry
https://www.readbyqxmd.com/read/27927999/elevated-temperature-drives-a-shift-from-selfing-to-outcrossing-in-the-insect-pollinated-legume-faba-bean-vicia-faba
#16
Jacob Bishop, Hannah E Jones, Donal M O'Sullivan, Simon G Potts
Climate change can threaten the reproductive success of plants, both directly, through physiological damage during increasingly extreme weather events, and indirectly, through disruption of plant-pollinator interactions. To explore how plant-pollinator interactions are modified by extreme weather, we exposed faba bean (Vicia faba) plants to elevated temperature for 5 d during flowering, simulating a heatwave. We then moved the plants to flight cages with either bumblebees or no pollinators, or to two field sites, where plants were enclosed in mesh bags or pollinated by wild insect communities...
December 7, 2016: Journal of Experimental Botany
https://www.readbyqxmd.com/read/27927996/post-translational-modifications-of-flowering-locus-c-modulate-its-activity
#17
REVIEW
Jun Soo Kwak, Ga Hyun Son, Jong Tae Song, Hak Soo Seo
Flowering Locus C (FLC) is a key floral repressor that precisely controls flowering time. The role of FLC has been extensively studied at the transcriptional level using molecular biological and epigenetic approaches. However, how FLC functions and how its stability is controlled at the post-translational level are only beginning to be understood. Recent studies show that various post-translational modifications (PTMs) control the stability and activity of FLC. In this review, we focus on three types of PTMs that regulate FLC function: phosphorylation, ubiquitination, and sumoylation...
December 7, 2016: Journal of Experimental Botany
https://www.readbyqxmd.com/read/27927994/the-acyl-activating-enzyme-phaae13-is-an-alternative-enzymatic-source-of-precursors-for-anthocyanin-biosynthesis-in-petunia-flowers
#18
Guoju Chen, Heping Liu, Qian Wei, Huina Zhao, Juanxu Liu, Yixun Yu
Anthocyanins, a class of flavonoids, are responsible for the orange to blue coloration of flowers and act as visual attractors to aid pollination and seed dispersal. Malonyl-CoA is the precursor for the formation of flavonoids and anthocyanins. Previous studies have suggested that malonyl-CoA is formed almost exclusively by acetyl-CoA carboxylase, which catalyzes the ATP-dependent formation of malonyl-CoA from acetyl-CoA and bicarbonate. In the present study, the full-length cDNA of Petunia hybrida acyl-activating enzyme 13 (PhAAE13), a member of clade VII of the AAE superfamily that encodes malonyl-CoA synthetase, was isolated...
December 7, 2016: Journal of Experimental Botany
https://www.readbyqxmd.com/read/27925497/anti-inflammatory-and-anticancer-effects-of-flavonol-glycosides-from-diplotaxis-harra-through-gsk3%C3%AE-regulation-in-intestinal-cells
#19
Imen Nasri, Rachid Chawech, Cynthia Girardi, Emmanuel Mas, Audrey Ferrand, Nathalie Vergnolle, Nicolas Fabre, Raoudha Mezghani-Jarraya, Claire Racaud-Sultan
CONTEXT AND OBJECTIVE: Diplotaxis harra (Forssk.) Boiss. (Brassicaceae) is traditionally used as an antidiabetic, anti-inflammatory or anticancer agent. In these pathologies, the glycogen synthase kinase 3 β (GSK3β) is overactivated and represents an interesting therapeutic target. Several flavonoids can inhibit GSK3β and the purpose of this study was to search for the compounds in Diplotaxis harra which are able to modulate GSK3β. MATERIALS AND METHODS: Methanol extracts from D...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27925396/arabidopsis-sumo-protease-asp1-positively-regulates-flowering-time-partially-through-regulating-flc-stability
#20
Xiangxiong Kong, Xi Luo, Gao-Ping Qu, Peng Liu, Jing Bo Jin
The initiation of flowering is tightly regulated by the endogenous and environment signals, which is crucial for the reproductive success of flowering plants. It is well known that autonomous and vernalization pathways repress transcription of FLOWERING LOCUS C (FLC), a focal floral repressor, but how its protein stability is regulated remains largely unknown. Here, we found that mutations in a novel Arabidopsis SUMO protease 1 (ASP1) resulted in a strong late-flowering phenotype under long-days, but to a lesser extent under short-days...
December 7, 2016: Journal of Integrative Plant Biology
keyword
keyword
11569
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"