Results 91 to 100 of about 45,121 (259)

Toxicity and Organ Distribution of Mercury in Freshwater Fish (Oreochromis niloticus) after Exposure to Water Contaminated Mercury (HgII)

Toxics, 2019
The purpose of this study was to investigate the toxicity and the distribution of mercury (Hg) in the main tissues of freshwater fish (Oreochromis niloticus) after being exposed to water containing Hg(II).
Suhendrayatna Suhendrayatna, Nasrul Arahman, Luky Wahyu Sipahutar, Rinidar Rinidar, Elvitriana Elvitriana   +4 more
doaj   +1 more source

Inheritance and stability of Cry2Ab2 resistance in an Ostrinia nubilalis strain originating from Wisconsin, U.S.

Pest Management Science, EarlyView.
Resistance to Cry2Ab2 protein in Ostrinia nubilalis is autosomal, functionally recessive, controlled by a single gene, and remains stable over 17 generations in the absence of Cry2Ab2 selection pressure. Abstract BACKGROUND Transgenic corn expressing insecticidal proteins from the bacterium Bacillus thuringiensis (Bt), including Cry1Ab, Cry1Fa and/or ...
Tatum Dwyer, Yucheng Wang, Graham P. Head, Fei Yang   +3 more
wiley   +1 more source

Oral RNAi reduces survival and grain loss in Rhyzopertha dominica, including phosphine‐resistant populations

Pest Management Science, EarlyView.
Oral delivery of dsRNA targeting essential genes reduces adult survival and grain damage in Rhyzopertha dominica, including highly phosphine‐resistant populations. These findings support RNAi as a complementary mode‐of‐action for resistance management and postharvest protection in stored‐grain systems. Abstract BACKGROUND Phosphine fumigation remains a
ZiHan Shen, Wei Chen, KangXu Wang
wiley   +1 more source

Schatters voor de LC50

, 2012
Dit rapport geeft een kritisch overzicht van statistische methoden voor het schatten van de LC50. Met name wordt aandacht besteed aan de bruikbaarheid van deze methoden bij het type gegevens dat bij toxiciteitstoetsen vaak voorkomt.Abstract not ...
Hoekstra JA
core  

Lethal Concentration 50 (LC50 - 96 hours) Nile Tilapia (Oreochromis niloticus) exposed Cypermethrin-based Pesticide [PDF]

, 2016
In aquaculture of an irrigation, the use of cypermethrin-based pesticide can harm nile tilapia which cultured within and its impact on humans who consume the fish.
Shinta Hiflina Yuniari, Amin Setyo Leksono, Asus Maizar Suryanto Hertika   +2 more
core   +1 more source

Bioassay for Detection of Dichlorvos Insecticide in Air in Alfalfa Leafcutting Bee (Megachile Rotundata F.) Incubators

Journal of Apicultural Science, 2014
Dichlorvos is an insecticide used in slow-release plastic strips for controlling chalcid wasp parasites, such as Pteromalus venustus Walker, in incubators used to raise alfalfa leafcutting bees (Megachile rotundata F.). Beekeepers need a practical method
Purdy John R., Kevan Peter G.
doaj   +1 more source

Multistressor Interaction of Perfluorooctane Sulfonate (PFOS) and Temperature in Two Estuarine Fish Species, Red Drum (Sciaenops ocellatus) and Sheepshead Minnow (Cyprinodon variegatus)

Environmental Toxicology, EarlyView.
ABSTRACT Perfluorooctane sulfonate (PFOS), a perfluoroalkyl substance (PFAS), is characterized by a long, fluorinated carbon chain which makes it ideal for oil‐ and water‐repellent products but detrimental for the environment, where it persists and accumulates in organisms.
Anna L. Thornton, Katy W. Chung, Peter B. Key, Emily C. Pisarski, Philip Tanabe, Marie E. DeLorenzo   +5 more
wiley   +1 more source

Comparison of the deduced LC50, EC50 and TI for caffeine, DCA and theophylline.

, 2015
This table presents all the log(LC50) and log(EC50) values processed on the manual observations and on the values processed by our classification pipeline.
Pierre Geurts (29807), Nathalie Jeanray (682816), Benoist Pruvot (682817), Marc Muller (116959), Raphaël Marée (32623), Olivier Stern (682818), Louis Wehenkel (32624)   +6 more
core   +1 more source

Acute Contact Toxicity of Six Pesticides in Honeybees (Apis Mellifera Meda) in Iran

Journal of Apicultural Science, 2017
Pollination has an important role in both agricultural production and wild plant reproduction. For the pollination of crops, agriculture relies largely on managed colonies of the honeybee Apis mellifera.
Rasuli Farhang, Rafie Javad Nazemi, Sadeghi Amin   +2 more
doaj   +1 more source

Diflubenzuron Caused Mitochondrial Dysfunction, Ca2+ Homeostasis Disruption, and Intrinsic Apoptosis in Trophoblastic Cells

Environmental Toxicology, EarlyView.
ABSTRACT Diflubenzuron is used as an insect growth inhibitor, and its potential risk to human health was raised owing to the possibility of environmental residues and human exposure. This study aimed to investigate the toxic mechanism of diflubenzuron on trophoblastic cells such as HTR8/SVneo and JEG‐3 cells. We investigated mitochondrial function, Ca2+
Miji Kim, Wonhyoung Park, Whasun Lim, Gwonhwa Song, Sunwoo Park   +4 more
wiley   +1 more source