Water Powered Bioassay System

2004 ◽  
Author(s):  
Liwei Lin
Keyword(s):  
Bioassay System

A Bioassay System for Water-Quality Monitoring Using a Small Fish

2013 ◽  
Vol 133 (8) ◽  
pp. 1616-1624
Author(s):  
Zu Soh ◽  
Kentaro Miyamoto ◽  
Akira Hirano ◽  
Toshio Tsuji
Keyword(s):  
Water Quality ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Small Fish ◽  
Bioassay System

A Field Cage Bioassay System for Testing Candidate Sex Pheromones of the Tobacco Budworm1,2,3,4

1974 ◽  
Vol 67 (4) ◽  
pp. 547-552 ◽  
Author(s):  
D. E. Hendricks ◽  
J. H. Tumlinson
Keyword(s):  
Sex Pheromones ◽  
Field Cage ◽  
Bioassay System

Lack of modifying effects of 6-mercaptopurine in a medium term bioassay system for liver carcinogenesis using male F344 rats

1992 ◽  
Vol 64 (2) ◽  
pp. 99-107
Author(s):  
Toshihiro Amanuma ◽  
Hiroshi Maruyama ◽  
Toshifumi Tsujiuchi ◽  
Masahiro Tsutsumi ◽  
Ayumi Denda ◽  
...  
Keyword(s):  
Liver Carcinogenesis ◽  
Medium Term ◽  
Bioassay System ◽  
F344 Rats ◽  
Male F344 Rats

Enhanced release of endothelium-derived factor(s) by chronic increases in blood flow

1988 ◽  
Vol 255 (3) ◽  
pp. H446-H451 ◽  
Author(s):  
V. M. Miller ◽  
P. M. Vanhoutte
Keyword(s):  
Blood Flow ◽  
Smooth Muscle ◽  
Arteriovenous Fistula ◽  
Muscarinic Receptors ◽  
Femoral Artery ◽  
Response Curves ◽  
Femoral Arteries ◽  
Relaxing Factor ◽  
Bioassay System ◽  
Endothelium Derived Relaxing Factor

Chronic increases in blood flow caused by an arteriovenous fistula augment endothelium-dependent relaxations to acetylcholine. To determine whether endothelial muscarinic receptors are altered, concentration-response curves to acetylcholine were obtained in the presence of pirenzepine in fistula- and sham-operated canine femoral arteries. Pirenzepine inhibited the response to acetylcholine in both arteries. The pA2 (log Kb) for the antagonist was the same. A bioassay system was used to assess release of endothelium-derived relaxing factor. Rings of femoral artery (without endothelium) from unoperated dogs relaxed more when superfused with perfusate derived from endothelium of fistula-operated arteries during acetylcholine stimulation. Rings without endothelium of sham- and fistula-operated arteries relaxed to the same extent when superfused with perfusate derived from the endothelium of unoperated femoral arteries. These results suggest that augmented relaxations to acetylcholine in canine arteries where blood flow is chronically elevated do not result from changes in the subtype of endothelial muscarinic receptors or in the sensitivity of the underlying smooth muscle to endothelium-derived relaxing factor(s). They are likely due to increased release of endothelium-derived relaxing factor(s) on muscarinic activation.

scholarly journals Automated behavioral bioassay system. [For fishes]

1975 ◽  
Author(s):  
T. L. Beitinger ◽  
W. Prepejchal ◽  
J. Haumann ◽  
R. E. Rowland
Keyword(s):  
Behavioral Bioassay ◽  
Bioassay System

Development of a novel bioassay system to assess the effectiveness of entomopathogenic fungi against imported fire ants

2012 ◽  
Vol 22 (2) ◽  
pp. 233-241 ◽  
Author(s):  
Xixuan Jin ◽  
Douglas Streett ◽  
Yanbo Huang ◽  
Todd Ugine
Keyword(s):  
Entomopathogenic Fungi ◽  
Fire Ants ◽  
Bioassay System ◽  
Imported Fire Ants

Antifungal activity of constituents from the heartwood of Gmelina arborea: Part 1. Sensitive antifungal assay against Basidiomycetes

Holzforschung ◽  
2004 ◽  
Vol 58 (2) ◽  
pp. 189-192 ◽  
Author(s):  
F. Kawamura ◽  
S. Ohara ◽  
A. Nishida
Keyword(s):  
Antifungal Activity ◽  
Ethyl Acetate ◽  
Trametes Versicolor ◽  
Gmelina Arborea ◽  
Bioassay System ◽  
Fomitopsis Palustris ◽  
Antifungal Assay

Abstract Antifungal activity of constituents from the heartwood of the Malaysian Gmelina arborea against Trametes versicolor and Fomitopsis palustris was investigated. A sensitive bioassay system for antifungal activity against basidiomycetes was developed which uses a medium in which homogenized hyphae were dispersed. Ethyl acetate- solubles from the heartwood showed the highest activity against both fungi, although the activity against F. palustris was quite weak. Spots exhibiting antifungal activity against T. versicolor were specified by autobiography of ethyl acetate-solubles, and five constituents were isolated and identified as (+)-7′-O-ethyl arboreol, (+)-paulownin, (+)-gmelinol, (+)-epieudesmin and (−)-β-sitosterol. The four lignans showed antifungal activity, whereas β-sitosterol did not. From the comparison of antifungal activity, it was concluded that the piperonyl nucleus contributed to the activity of lignans. Of the four lignans isolated, gmelinol appeared to be an important antifungal constituent, since it was rich in the heartwood of G. arborea. Furthermore, the synergism by coexistence of these five compounds was confirmed.

Activity of natural toxins against the silverleaf whitefly, Bemisia argentifolii, using a novel feeding bioassay system

1996 ◽  
Vol 79 (1) ◽  
pp. 25-32 ◽  
Author(s):  
Elizabeth W. Davidson ◽  
Rufino B. R. Patron ◽  
Lawrence A. Lacey ◽  
Roger Frutos ◽  
Alain Vey ◽  
...  
Keyword(s):  
Silverleaf Whitefly ◽  
Bemisia Argentifolii ◽  
Natural Toxins ◽  
Feeding Bioassay ◽  
Bioassay System
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