scholarly journals Effects of low-concentration glyphosate and aminomethyl phosphonic acid on zebrafish embryo development

2021 ◽  
Vol 226 ◽  
pp. 112854
Author(s):  
Weidong Zhang ◽  
Jiachao Wang ◽  
Jianshi Song ◽  
Yanru Feng ◽  
Shujuan Zhang ◽  
...  
Keyword(s):  
Embryo Development ◽  
Phosphonic Acid ◽  
Zebrafish Embryo ◽  
Low Concentration ◽  
Aminomethyl Phosphonic Acid

Toxicity of polymer‐modified CuS nanoclusters on zebrafish embryo development

2021 ◽  
Author(s):  
Qiuping Zhang ◽  
Lifeng Wang ◽  
Qian Gao ◽  
Xinge Zhang ◽  
Yushuang Lin ◽  
...  
Keyword(s):  
Embryo Development ◽  
Zebrafish Embryo

Cyclin-dependent kinase 8 is expressed both maternally and zygotically during zebrafish embryo development

2002 ◽  
Vol 1576 (1-2) ◽  
pp. 203-208 ◽  
Author(s):  
Elaine D. Brabazon ◽  
Ronan T. Bree ◽  
Micheal W. Carton ◽  
Maura Grealy ◽  
Lucy Byrnes
Keyword(s):  
Embryo Development ◽  
Zebrafish Embryo ◽  
Cyclin Dependent Kinase

scholarly journals Effects of ethephon and urea on ripening of fruits and leaf abscission of coffee (Coffea arábica L.)

1981 ◽  
Vol 38 (1) ◽  
pp. 281-288
Author(s):  
Paulo R.C. Castro ◽  
José F. Franco ◽  
José D. Costa ◽  
Clarice G.B. Demétrio
Keyword(s):  
Field Experiment ◽  
Phosphonic Acid ◽  
Fruit Ripening ◽  
Coffea Arabica ◽  
Leaf Abscission ◽  
Coffee Plant ◽  
Low Concentration ◽  
Coffea Arabica L

A field experiment was carried out to investigate the effects of ethephon and urea on ripening of fruits and leaf abscission of coffee plant. Ethephon (2-chloroethane phosphonic acid) sprays were applied to green Coffea arábica berries 26 days before counting date in concentrations of 0.5 and 0.25 ml/1 from Ethrel (240 a.i./l). The chemical accelerated the onset of fruit ripening at both concentrations. The efficacy of ethephon was increased adding urea. Ethephon 0.5 ml/1 promoted abscission of leaves and low concentration reduced shedding of leaves. The treatments did not affect the growth and production on the next harvest.

Determination of Glyphosate Herbicide and (Aminomethyl)phosphonic Acid in Natural Waters by Liquid Chromatography Using Pre-Column Fluorogenic Labeling with 9-Fluorenylmethyl Chloroformate

1986 ◽  
Vol 69 (3) ◽  
pp. 458-461 ◽  
Author(s):  
Carl J Miles ◽  
Louis R Wallace ◽  
H Anson Moye
Keyword(s):  
Liquid Chromatography ◽  
Phosphonic Acid ◽  
Natural Waters ◽  
Sample Pretreatment ◽  
Fluorescence Detector ◽  
Rotary Evaporation ◽  
Glyphosate Herbicide ◽  
And Storage ◽  
Aminomethyl Phosphonic Acid

Abstract An analytical method has been developed for determination of glyphosate herbicide and its major metabolite, (aminomethyl)phosphonic acid (AMFA), in natural waters. Sample pretreatment consisted of filtration, addition of phosphate buffer, concentration by rotary evaporation, and a final filtration before derivatization with 9-fluorenylmethyl chloroformate. The derivatives were separated by anion exchange liquid chromatography and measured with a fluorescence detector. Standard curves were linear over 3 orders of magnitude and minimal detectable quantities were 10 ng/mL for glyphosate and 5 ng/mL for AMPA. The 20-fold concentration factor realized in sample preparation corresponds to ppb method detection limits for glyphosate and AMPA in natural waters. Recovery and storage studies were performed and are discussed.

Evaluation of Titanium Dioxide as a Binding Phase for the Passive Sampling of Glyphosate and Aminomethyl Phosphonic Acid in an Aquatic Environment

2015 ◽  
Vol 87 (12) ◽  
pp. 6004-6009 ◽  
Author(s):  
Vincent Fauvelle ◽  
Tran-Thi Nhu-Trang ◽  
Thibaut Feret ◽  
Karine Madarassou ◽  
Jérôme Randon ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Phosphonic Acid ◽  
Aquatic Environment ◽  
Passive Sampling ◽  
Binding Phase ◽  
Aminomethyl Phosphonic Acid
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