Enantioselective Phytotoxicity and the Relative Mechanism of Current Chiral Herbicides

作者：Cui Wang, Dezhao Lu, Jinhuan Yang, Yingling Xu, Chenxue Gong, Zhuoyu Li · 发表于：Current Protein and Peptide Science · 年份：2016 · DOI：10.2174/1389203717666160421151810 · 被引用次数：11 · 研究领域：Allelopathy and phytotoxic interactions、Weed Control and Herbicide Applications、Analytical Chemistry and Chromatography

BACKGROUND: Regardless of the achievable of chiral switch, most of the chiral nature agrochemical is still sold as racemate or enantiomer-enriched pesticides. Herbicides, accounted for a large proportion in pesticide market, are of great concern due to the frequent occurrence in environment and the structure selective phyto-biochemical impact on plants. METHODS: We give a systematic search on the literature database and included approximately 50 papers which were related to the review. We do careful categories for the chiral herbicides according to their structure and listed out the acute phytotoxicity endpoints. The potential mechanism for the enantioselective toxicity was concluded into 5 main points. RESULTS: The enantiomer-specific toxicity on plant growth and flowers are limited on phenoxyalkanoic acid herbicide, aryloxyphenoxypropanoic acid, imidazolinone herbicide, and acetamide pesticide. Data available on the potential mechanism explanation of enantioselective phytotoxicity has been concerned on the genetic transcription, oxidative stress, and photosynthesis disruption, etc. A comparison between the two enantiomers' enantioselective effects identified an organ-specific and species-specific phenomenon for several herbicides. Moreover, a more herbicidal activity enantiomer is also displayed the more toxicity than its antipode. CONCLUSION: The review elucidated a paucity of information on the enantioselective effect research on various types of plants at the different l...