نتایج جستجو برای: aquae
تعداد نتایج: 266 فیلتر نتایج به سال:
The present study is to investigate which kinds of solvent extracts of Inulae Flos inhibit the chemokine productions in HaCaT cell and whether the inhibitory capacity of Inulae Flos is related with constitutional compounds. The 70% methanol extract showed comparatively higher inhibition of thymus and activation-regulated chemokine (TARC/CCL17) in HaCaT cells, therefore this extract was further ...
Advanced oxidation processes, such as using titanium dioxide (TiO2) photocatalysis, are being developed to reduce or eliminate the toxicity of treated water. In this study, removal purified anatoxin-a (ANTX-a), live Dolichospermum flos-aquae cells, and a cell extract organism under UV-A/TiO2 creation decomposition products their were investigated. Total degradation ANTX-a from initial concentra...
Bio-adhesives play a pivotal role in wide range of medical applications. However, there are some problems about their application different pH values and low adhesion force under wet conditions. Here, we report new recombinant fusion protein achieved by mussel foot proteins (Mfps) Mytilus Californianus gas vesicle A (GvpA) Anabaena flos-aquae genetic engineering methods. Transmission electron m...
The seasonal dynamics of cyanobacterial and diatom assemblages in 11 water bodies along a mesoto hypertrophic gradient were compared. The cyanobacterial and diatom communities are characterised according to representative species of each algal class, selected by data reduction following principal component analyses and discriminant analysis. The cyanobacterial and diatom assemblages of the four...
Phosphorus-starved cells of Anabaena flos-aquae rapidly increase their capacity to reduce acetylene to ethylene when they receive phosphorus. This response may be used as a bioassay for detecting available phosphorus in aquatic ecosystems. The sensitivity of the method compares favorably with conventional methods for measuring dissolved orthophosphate, and has the additional advantage that it m...
The bloom dynamics of two planktonic, nitrogen-fixing species of blue-green algae Aphanizomenon flos-aquae (L.) Ralfs and Nodularia spumigenaMertens in the Gulf of Gdańsk were studied. The Gulf of Gdańsk is a shallow part of the Baltic Sea where the water has a mean salinity of ca 8 PSU. Increased riverine nutrient input and/or changes in the N:P ratio are indicated as factors causing blue-gree...
Glucose 6-phosphate dehydrogenase (EC 1.1.1.49) has been partially purified from Anacystis nidulans and Anabaena flos-aquae by means of ammonium sulfate fractionation and exclusion gel chromatography and the kinetic properties determined.Glucose 6-phosphate dehydrogenase from these blue-green algae exhibits Michaelis-Menten kinetics at pH 6.7. At this pH, Km values of 0.37 mm for glucose 6-phos...
Cytochrome c553 is a photosynthetic electron transport protein found in algae and cyanobacteria. We have purified cytochromes c553 from five cyanobacteria and studied the structures of the ferrocytochromes by 1H NMR spectroscopy at 360 and 470 MHz. Using standard NMR techniques and by comparing the amino acid sequences of four cytochromes c553 with their 1H NMR spectra, we have assigned in the ...
This work compared the sensitivity of three cyanobacteria (Anabaena flos-aquae, Microcystis flosaquae and Mirocystis aeruginosa) as well as five green algae (Pseudokirchneriella subcapitata, Scenedesmus quadricauda, Scenedesmus obliquus, Chlorella vulgaris and Chlorella pyrenoidosa) to four pesticides through 96h short-term chronic tests. The results showed that the toxicity of the pesticides t...
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