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Poinsettia color

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https://www.readbyqxmd.com/read/25097888/effect-of-pseudomonas-putida-on-growth-and-anthocyanin-pigment-in-two-poinsettia-euphorbia-pulcherrima-cultivars
#1
Ramon Zulueta-Rodriguez, Miguel Victor Cordoba-Matson, Luis Guillermo Hernandez-Montiel, Bernardo Murillo-Amador, Edgar Rueda-Puente, Liliana Lara
Pseudomonas putida is plant growth promoting rhizobacteria (PGPR) that have the capacity to improve growth in plants. The purpose of this study was to determine growth and anthocyanin pigmentation of the bracts in two poinsettia Euphorbia pulcherrima cultivars (Prestige and Sonora Marble) using three strains of P. putida, as well as a mixture of the three (MIX). Comparison with the control group indicated for the most part that Prestige grew better than the Sonora Marble cultivars with the PGPR strains. Prestige with the MIX strain grew better compared to control for the number of cyathia (83 versus 70...
2014: TheScientificWorldJournal
https://www.readbyqxmd.com/read/24803140/mercury-sensing-and-toxicity-studies-of-novel-latex-fabricated-silver-nanoparticles
#2
Hemant P Borase, Chandrashekhar D Patil, Rahul B Salunkhe, Rahul K Suryawanshi, Bipinchandra K Salunke, Satish V Patil
Safe and eco-friendly alternatives to currently used hazardous chemico-physical methods of silver nanoparticles (AgNPs) synthesis are need of time. Rapid, low cost, selective detection of toxic metals in environmental sample is important to take safety action. Toxicity assessment of engineered AgNPs is essential to avoid its side effects on human and non-target organisms. In the present study, biologically active latex from Euphorbia heterophylla (Poinsettia) was utilized for synthesis of AgNPs. AgNPs was of spherical shape and narrow size range (20-50 nm)...
November 2014: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/18158306/anthocyanin-inhibits-propidium-iodide-dna-fluorescence-in-euphorbia-pulcherrima-implications-for-genome-size-variation-and-flow-cytometry
#3
Michael D Bennett, H James Price, J Spencer Johnston
BACKGROUND: Measuring genome size by flow cytometry assumes direct proportionality between nuclear DNA staining and DNA amount. By 1997 it was recognized that secondary metabolites may affect DNA staining, thereby causing inaccuracy. Here experiments are reported with poinsettia (Euphorbia pulcherrima) with green leaves and red bracts rich in phenolics. METHODS: DNA content was estimated as fluorescence of propidium iodide (PI)-stained nuclei of poinsettia and/or pea (Pisum sativum) using flow cytometry...
April 2008: Annals of Botany
https://www.readbyqxmd.com/read/15656164/allelopathic-effects-of-aconitic-acid-on-wild-poinsettia-euphorbia-heterophylla-and-morningglory-ipomoea-grandifolia
#4
Elemar Voll, Cristiano Elemar Voll, Ricardo Victória Filho
High infestations of alexandergrass (Brachiaria plantaginea) in experimental area have reduced seedbank of some weed species in soil at a greater degree compared to those obtained with the use of an efficient herbicide. Aconitic acid (AA) has been identified in those plants in high concentration. Thus, two experiments were carried out in the laboratory to determine the effects of pure AA on weed seed germination and on endophytic fungi in wild poinsettia (Euphorbia heterophylla) and morningglory (Ipomoea grandifolia) weed species...
2005: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/9735876/staining-paraffin-extracted-alcohol-rinsed-and-air-dried-plant-tissue-with-an-aqueous-mixture-of-three-dyes
#5
E T Graham, W R Trentham
A staining solution containing alcian blue 8GX, Bismarck brown Y and safranin O was prepared with 0.1 M sodium acetate buffer, pH 5.0. Paraffin was extracted with MicroClear solvent from 10 microm tissue sections mounted on slides. Paraffin solvent was removed by rinsing with isopropanol, and tissues were air dried. Slides with bare dry tissue sections were immersed in the triple stain and structures could be distinguished within 30 min as follows: nonlignified cell walls, blue; lignified cell walls, nuclei and chloroplasts, red; and cuticle, brown or yellow-brown...
July 1998: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
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