Characterization of Trp(+) reversions in Escherichia coli strain WP2uvrA. (1/15)The Escherichia coli strain WP2uvrA is widely used in general mutagenicity screening tests because of its high sensitivity to many kinds of mutagens and it serves as a supplement to the standard Salmonella typhimurium tester strains. In contrast to Salmonella His(+) revertants, E.coli Trp(+) revertants have not been characterized at the molecular level. In this study we found that in the trpE65 allele of WP2uvrA the triplet that codes for the fourth amino acid from the N-terminus of anthranilate synthetase was an ochre stop codon (TAA) instead of a glutamine codon (CAA). In spontaneous Trp(+) revertants the ochre codon had been changed to glutamine (CAA), lysine (AAA), glutamic acid (GAA), leucine (TTA), serine (TCA) or tyrosine (TAC, TAT). Since tryptophan prototrophy could also be restored by ochre suppressor mutations at the anticodon sites in the genes for tRNA(Glu) (glnU), tRNA(Lys) (lysT) and tRNA(Tyr) (tyrT, tyrU), the Trp(+) reversion system with E.coli WP2uvrA detected five types of base substitutions, A.T-->T.A, A.T-->C.G, A.T-->G.C, G.C-->A.T and G.C-->T.A. About 30-50% of Trp(+) revertants induced by N-ethyl-N'-nitro-N-nitrosoguanidine, captan and angelicin plus UVA irradiation were attributable to reversion at the trpE65 ochre locus; the others were attributable to suppressor mutations. In contrast, almost all revertants induced by N-methyl-N'-nitro-N-nitrosoguanidine, 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone and furylfuramide were caused by suppressor mutations. Thus, the high mutagen sensitivity of WP2uvrA is due to several target sites consisting of A.T base pairs (trpE65, lysT) and G.C base pairs (glnU, tyrT, tyrU). (+info)
Induction of hsp70 in transgenic Drosophila: biomarker of exposure against phthalimide group of chemicals. (2/15)The expression of stress genes is suggested to be a potentially sensitive indicator of any chemical or physical assault. This led us to explore the possibility of using expression of one of the major stress genes, hsp70, in Drosophila as a biomarker against phthalimide group of chemicals, which may accordingly provide an early indication of exposure to these hazardous chemicals. We exposed third instar larvae of transgenic Drosophila melanogaster (hsp70-lacZ) Bg(9) to different concentrations of the test chemicals (Captan, Captafol and Folpet) for various time intervals (2-48 h) to evaluate expression of hsp70 by X-gal staining, ONPG assay and whole organ in situ immunohistochemistry. The study was further extended to examine the effect of the said chemicals on development of the organism and tissue damage occurring in them, thus raising the possibility of evaluating comparative deleterious effect inducing potential of the test chemicals. Our results showed a strong hsp70 expression in the Captafol-exposed larvae followed by weaker expression in Captan- and Folpet-treated larvae. The effect was further reflected on development as revealed by a delay in emergence of the flies by 3 days in 200 ppm Captafol-exposed group. Hsp70 was found not to be induced at 0.0002 ppm Captafol and at 0.002 ppm Captan and Folpet. The present study suggests that (a). hsp70 induction is sensitive enough to be used as a biomarker against phthalimide group of chemicals, (b). amongst the three test chemicals, Captafol is the most deleterious compound followed by Captan and Folpet, (c). 0.0002 ppm for Captafol and 0.002 ppm for Captan and Folpet, respectively, can be regarded as no observed adverse effect level (NOAEL). (+info)
Urine mutagenicity and lymphocyte DNA damage in fruit growers occupationally exposed to the fungicide captan. (3/15)AIMS: To determine haematological parameters, urine mutagenicity (on three Salmonella typhimurium strains), and DNA damage (using the comet assay) in mononuclear leucocytes of farmers before and after a one-day spraying period of pear and apple trees with the fungicide captan in usual conditions. METHODS: Fruit growers were exposed to captan during the 1998 (n = 12) and/or the 2000 spraying seasons (n = 17). Biological samples were collected on the morning of the day of spraying (S1), the evening after spraying (S2), and the morning of the day after (S3). The UK Predictive Operator Exposure Model (UK-POEM) was used to quantify pesticide exposure intensity. RESULTS: No effect was observed on haematological parameters for these two spraying seasons. Proportions of mutagenic urine samples did not significantly differ between S1 and S2/S3 sampling points. In contrast with strains TA97a and YG1041 mainly sensitive to frameshift mutations, a positive trend was observed between the difference (S3-S1) of mutagenic power on strain TA102 detecting base-pair mutations and the exposure predicted value given by UK-POEM, mainly due to parameters related to protective clothing. No significant variations in DNA damage levels were observed between S1 and S3, nor were correlations observed with parameters of pesticide exposure. CONCLUSIONS: A one-day spraying period with captan and other pesticides does not significantly induce DNA damages in mononuclear leucocytes. In contrast, an inefficient protective clothing could correlate with an increase in urine mutagenicity as assessed by the TA102 tester strain. (+info)
Captan exposure and evaluation of a pesticide exposure algorithm among orchard pesticide applicators in the Agricultural Health Study. (4/15)(+info)
Rhinitis associated with pesticide use among private pesticide applicators in the agricultural health study. (5/15)(+info)
Tetrabutylammonium bromide media aza-Michael addition of 1,2,3,6-tetrahydrophthalimide to symmetrical fumaric esters and acrylic esters under solvent-free conditions. (6/15)(+info)
Determinants of captan air and dermal exposures among orchard pesticide applicators in the Agricultural Health Study. (7/15)(+info)
Biological monitoring of pesticide exposures in residents living near agricultural land. (8/15)(+info)
Captan's mother was a native of Liberia and his father was Lebanese. Before serving as foreign minister, he was a local ... Captan who was overwhelmingly elected with over 70% of the votes on March 16, 2010 as President of the Liberia Chamber of ... Monie Ralph Captan (born May 28, 1962) is the former foreign minister of Liberia from 1996 until 2003, former of Presidential ... Staff (March 17, 2010). "Captan Elected LCC President". Liberian Observer. Archived from the original on July 16, 2011. ...
Omar Sheriff Captan
... retrieved 2022-10-27 Omar Sheriff Captan on Flickr Omar Sheriff Captan at IMDb v t e (Articles with short description, Short ... Captan married his long-time girlfriend Cindy in 2013, but later divorced, after which he became a pastor. He was reported to ... Omar Sheriff Captan is a Ghanaian actor and film director. Although initially known for "bad boy" roles, he later became a ... "Omar Sheriff Captan ties the knot - MyJoyOnline.com". www.myjoyonline.com. 2013-12-13. Retrieved 2022-10-27. Mawuli, David ( ...
Delzi Captan (1968); Maria Regina Corzânego (1970); Maria Alves de Oliveira (1975); Débora de Almeida Rosa (1977); Ísis Stocco ...
Colony of Liberia
Captan, Monie R. (2015). Introduction to Liberian Government and Political System: A Civics Textbook. Monrovia, Liberia: Star ... Captan, Monie R. (2015). Introduction to Liberian Government and Political System: A Civics Textbook. Monrovia, Liberia: Star ... Captan, Monie R. (2015). Introduction to Liberian Government and Political System: A Civics Textbook. Monrovia, Liberia: Star ... ISBN 978-9988-2-1441-8. Captan, Monie R. (2015). Introduction to Liberian Government and Political System: A Civics Textbook. ...
Ara B & Captan (Official Video). Shatta Wale. 24 December 2020. Retrieved 17 April 2022 - via YouTube. "Watch 'Behind The Scene ... JOINT 77 X ADDI SELF X CAPTAN ( OFFICIAL VIDEO)". Bygonegh.com. Bygonegh. Retrieved 27 September 2017. "Music Video Shatta Wale ...
Fungicide use in the United States
Experiments have shown that the use of ziram and captan can reduce the incidence of leaf blight by 75-80% in treated trees. ... As with leaf blight use of captan and ziram has been shown to reduce total incidence of almond scab infection. Shot hole ... Captan in one to three applications has been used as the primary fungicide to combat this disease. It has been shown to reduce ... The most effective fungicides for bitter rot control include the multisite mode-of-action fungicide captan, the osmotic signal ...
Tarleton (1780 Glasgow ship)
On 25 February there was a memo to Captan de Barrass, of Tarleton. On 19 March a second memo mentioned Captain de Barrass of ...
History of archaeology in the Philippines
The first focuses on the Yliguynes and their two gods, Captan and Maguayen. The second focuses on the Tinguines, who believed ...
This method is used in the production of the fungicides Captan and Folpet. Sulfenyl chlorides add across alkenes, for example ...
It is mainly used as an intermediate for the synthesis of dyes and fungicides (captan, folpet). It is a colorless oil, although ...
Economy of Florida
UFL IFAS recommends thiram, captan, captan + fexhexamid, penthiopyrad, isofetamid, fluxapyroxad + pyraclostrobin, fluopyram + ...
Other commercial products often used include Mancozeb, Captan, Ziram, Sovran, Rally, Elite, Inspire Super, Adamant, Mettle, ...
Industrial Bio-Test Laboratories
... with Allidochlor and Captan being restricted. According to various reports, IBT's clientele included a wide variety of ...
Nana Ama McBrown
McBrown has been linked to Omar Sheriff Captan, her co-star in a number of movies, although both have denied any romantic ...
... which is a precursor to the fungicide Captan. It is a white solid that is soluble in organic solvents. Tetrahydrophthalic ...
Ground Control (film)
Filming had begun at LAX, but after shooting permits were rescinded, producer Talaat Captan finished the film using locations ...
Production of strawberries in California
Captan is by far the most common, averaging 7.3 applications per season, pyraclostrobin 2.5, cyprodinil 2.3, fludioxonil 2.3, ... See Agriculture in California § Captan, Agriculture in California § Pyraclostrobin, Agriculture in California § Cyprodinil, ...
Herbert Austin, 1st Baron Austin
Captan Frank Kayser is associated with Mr Austin in the new undertaking and he will be assisted by a specially-selected staff, ...
... with the then President Charles Taylor on several occasions as well as with then Foreign Minister of Liberia Monie Ralph Captan ...
List of foreign ministers in 2003
Monie Captan (1996-2003) Lewis Brown (2003) Thomas Nimely (2003-2006) Libya - Abdel Rahman Shalgham (2000-2009) Madagascar - ...
List of Lebanese people in Africa
... footballer Monie Captan, former foreign minister of Liberia Fouad Hijazi, footballer Wael Nazha, footballer Gilbert R. Chagoury ...
Captan Nitriles : Daconil QoIs : Heritage, Compass, Insignia Antibiotics : Endorse (polyoxin D) Phenylpyrroles : Medallion " ...
Lake Providence, Louisiana
Civil War historian Captan Jack Wyly, Democratic politician and Lake Providence lawyer; convicted felon. Charles and Sam Wyly ...
List of foreign ministers in 2001
Monie Captan (1996-2003) Libya - Abdel Rahman Shalgham (2000-2009) Madagascar - Lila Ratsifandrihamanana (1998-2002) Malawi - ...
2019 in Mexico
"Captan en video accidente en juego mecánico de La Feria de Chapultepec" [Video of accident on ride in La Feria de Chapultepec ...
List of Liberians
Vice President of Liberia Angie Elisabeth Brooks Charles Walker Brumskine Gyude Bryant Monie Captan Alvin Chea Chea Cheapoo ...
Bitter rot of apple
The most effective fungicides for bitter rot control include the multisite mode-of-action fungicide captan, the osmotic signal ...
Index of pesticide articles
Bromethalin Bromine monochloride Bromomethane Bromoxynil Burgundy mixture Cacodylic acid Calcium phosphide Carbendazim Captan ...
IARC group 3
Butyl benzyl phthalate gamma-Butyrolactone Caffeine Cantharidin Caprolactam Captan Carbaryl Carbazole 3-Carbethoxypsoralen ...
CDC - NIOSH Pocket Guide to Chemical Hazards - Captan
Video Premiere: Mad Ting by Shatta Wale feat. Captan - Ghana Music - Music Videos
Captan Fruit And Ornamental | Kennedy's Country Gardens | Garden Center | Scituate, MA
Captan 80 WDG
ZO Contractor Cap (Tan) - Zero One Airsoft
Sylas Cap Tan Diamond | Herschel Supply Company
B/B Cap - Tan on medium blue cap - Buckaroo Businesses
Dropping Soon: Shatta Wale Hints New Music with Captan | GHMedia Hub
Charles Nii Armah Mensah popularly known Shatta Wale has today hinted that he has a new music with Captan to be released soon. ... Charles Nii Armah Mensah popularly known Shatta Wale has today hinted that he has a new music with Captan to be released soon. ... The creative piece was produced by Gold Up Music Captan Abdul Kadir Raph Rdv Snd Zack Ariyah ...
CAS Number Listing - Numbers Beginning With 2, NMAM 4th | NIOSH | CDC
West Auctions - Auction: Online Auction of Patio Pavers, Wall Blocks, Caps, and More ITEM: (2) Pallets of Legacy Cap Tan/Brown
Notable Philadelphia: 8/29-9/4 - The Rumpus.net
Bebe Logo Twill Cap | bebe
... bebe-logo-twill-cap-tan persistent_note_30% OFF SITEWIDE CODE: MDW30 persistent_note_highlight_91744F smarttag_collection_full ... www.bebe.com/products/bebe-logo-twill-cap-tan?variant=39663972581453 InStock Tan One Size ... https://www.bebe.com/products/bebe-logo-twill-cap-tan 6738834456653 Bebe Logo Twill Cap 29.00 //cdn.shopify.com/s/files/1/0033/ ...
NIOSHTIC-2 Search Results - Full View
The aim of this study was to assess the permeation of a wettable-powder formulation (48.9% captan and 1.1 % related derivatives ... Wettable powders of the fungicide captan (CASRN #133-06-2) are applied in agriculture by spraying over fields, applying onto ... Potential for dermal contact exists with such applications, the manufacture of captan, and its formulating. However, there are ... Captan; Gloves; Skin exposure; Hand protection; Nitriles; Fungicides; Pesticides and agricultural chemicals ...
The Plant Doctor: How to Spray Fungicides to Protect Landscapes, Gardens, and Turf on Residential Property | Page 56 |...
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Both molinate and captan inhibit GST activity, and hence, decrease in GST activity, as determined by the CDNB-GSH adduct, which ... and captan . GST catalyzes the electrophilic substitution of glutathione (GSH) to 1-chloro-2,4-dinitrobenzene (CDNB), ... by one order of magnitude for molinate and two orders for captan compared to previous work. Another class I hydrophobin, Ccg2 ...
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- Wettable powders of the fungicide captan (CASRN #133-06-2) are applied in agricultur e by spraying over fields, applying onto the soil, or by dipping roots to be planted into a concentrated solution. (cdc.gov)
- Charles Nii Armah Mensah popularly known Shatta Wale has today hinted that he has a new music with Captan to be released soon. (ghmediahub.com)
- Poisson regression analysis was used to estimate relative risks (RR) for cancer subtypes by tertiles of captan exposure. (nih.gov)
- A bioassay of technical-grade captan for possible carcinogenicity was conducted by administering the test material in feed to Osborne-Mendel rats and B6C3F1 mice. (nih.gov)
- The aim of this study was to characterize and compare nine types of powder-free, unlined, and unsupported nitrile gloves using attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectrometry to assess suitability for surface infrared analysis of the dicarboximide fungicide Captan. (cdc.gov)
- Captan is a broad-spectrum fungicide which inhibits mycelial growth from germinating fungus spores. (nih.gov)
- Because captan is a nonpersistent fungicide, directions for use indicate that it should be reapplied every week as necessary to maintain control. (nih.gov)
- It is concluded that under the conditions of this bioassay, tumors in the duodenum of B6C3F1 mice were associated with treatment with captan, but there was no convincing evidence that the tumors observed in Osborne-Mendel rats were related to treatment. (nih.gov)
- Within glove, between glove, and between lot variabilities were measured for 13 gloves from 5 manufacturers at 740, 1124, 1252, and 1735 cm-1, the characteristic Captan peak wavelengths. (cdc.gov)
- Groups of 50 rats of each sex were administered one of two doses of captan for 80 weeks, then observed for 33 or 34 weeks. (nih.gov)
- Mixed-effect models were used to evaluate the correlation between the adjusted and unadjusted algorithm and urinary captan metabolite levels. (nih.gov)
- Genetic Toxicity Evaluation of Captan in Salmonella/E.coli Mutagenicity Test or Ames Test. (nih.gov)