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Enantioselective effects of chiral amide herbicides napropamide, acetochlor and propisochlor: The more efficient R-enantiomer and its environmental friendly

Xie, Jingqian and Zhao, Lu and Liu, Kai and Guo, Fangjie and Liu, Weiping (2018) Enantioselective effects of chiral amide herbicides napropamide, acetochlor and propisochlor: The more efficient R-enantiomer and its environmental friendly. Science of the Total Environment, 626 . pp. 860-866. ISSN 0048-9697. http://resolver.caltech.edu/CaltechAUTHORS:20180220-075246121

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Abstract

Amide herbicides, which are used extensively worldwide, are often chiral. Enantiomeric selectivity comes from the different effects of the enantiomers on target and non-target organisms. In this study, the enantiomers of three amide herbicides were purified by the semi-preparative column and were used to investigate the enantioselective effects on target Echinochloa crusgalli (lowland rice weeds), and non-target Microcystis aeruginosa, and the yeast transformed with the human TRβ plasmid organisms. The results showed that (i) the R-enantiomers of the three amide herbicides exhibited the strongest activity toward weed inhibition and the lowest toxicity toward non-target organisms; (ii) napropamide was better suited for controlling root growth, while acetochlor and propisochlor were better for leaves control; (iii) herbicides at certain low concentrations (0.01 mg L^(−1) for acetochlor and propisochlor) could be utilized to promote plant growth. These findings encourage the use of R-amide herbicides instead of their racemates to increase the efficiency of weed control and reduce the risk to non-target organisms. On the other hand, the adverse effects are caused mostly by S-enantiomer, using R-enantiomer-enriched products may offer great environmental/ecological benefits.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.scitotenv.2018.01.140DOIArticle
https://www.sciencedirect.com/science/article/pii/S0048969718301621PublisherArticle
ORCID:
AuthorORCID
Liu, Kai0000-0002-2109-8196
Liu, Weiping0000-0002-1173-892X
Additional Information:© 2018 Elsevier B.V. Received 18 December 2017, Revised 13 January 2018, Accepted 15 January 2018, Available online 19 February 2018.
Subject Keywords:Chiral; Target enantio-activity; Non-target enantio-toxicity; Molecule docking
Record Number:CaltechAUTHORS:20180220-075246121
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180220-075246121
Official Citation:Jingqian Xie, Lu Zhao, Kai Liu, Fangjie Guo, Weiping Liu, Enantioselective effects of chiral amide herbicides napropamide, acetochlor and propisochlor: The more efficient R-enantiomer and its environmental friendly, Science of The Total Environment, Volume 626, 1 June 2018, Pages 860-866, ISSN 0048-9697, https://doi.org/10.1016/j.scitotenv.2018.01.140. (https://www.sciencedirect.com/science/article/pii/S0048969718301621)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:84882
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:21 Feb 2018 17:01
Last Modified:21 Feb 2018 17:01

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