芹菜中prometryn及其代谢产物的根分泌物

IF 1.5 4区 农林科学 Q2 ENTOMOLOGY Journal of Pesticide Science Pub Date : 2022-02-20 DOI:10.1584/jpestics.d21-035
Yingai Gui, Wei-Dong Yu, Xiangwu Ge, Haiyan Li, Chengpeng Sun, Xiqin Mao, Kuijing Yuan
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引用次数: 2

摘要

在水培条件下,对异丙灵处理的芹菜(Apium graveolens)和大白菜(pak choi,Brassica chinensis)根系分泌物进行了定性和定量研究和比较。采用超高效液相色谱联用orbittrap质谱仪对Prometryn及其代谢产物释放到营养液中进行分析,以研究这种木质部流动除草剂是否从根部渗出。结果表明,芹菜和小白菜的根系分泌物特征不同。芹菜将异丙素代谢为异丙素亚砜,并从根中释放出这两种化合物。相比之下,小白菜几乎没有代谢或从根部主动释放异丙素。芹菜96年后释放的异丙素亚砜浓度 小时为21 µg/L,几乎是释放的异丙肾上腺素的三分之一。我们的研究结果表明,木质部流动除草剂的根系渗出和移位在植物中可能是显著的,并且与韧皮部流动除草剂相比具有高度的物种依赖性。
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Root exudation of prometryn and its metabolites from Chinese celery (Apium graveolens)
Root exudates from Chinese celery (Apium graveolens) and Chinese cabbage (pak choi, Brassica chinensis) plants treated by prometryn, an herbicide, were qualitatively and quantitatively investigated and compared under hydroponic cultivation. Prometryn and its metabolites released into the nutrient solution were analyzed by ultra-performance liquid chromatograph coupled with orbitrap mass spectrometer to investigate whether this xylem-mobile herbicide is exuded from the roots. The results showed that celery and pak choi had different root exudation profiles. Celery metabolized prometryn to prometryn sulfoxide and released both compounds from the roots. In contrast, pak choi barely metabolized or actively released prometryn from the roots. The concentration of prometryn sulfoxide released from celery after 96 hr was 21 µg/L, which was nearly one-third that of released prometryn. Our results indicate that the root exudation and translocation of xylem-mobile herbicides could be significant in plants and are highly species dependent compared with phloem-mobile herbicides.
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来源期刊
Journal of Pesticide Science
Journal of Pesticide Science 农林科学-昆虫学
CiteScore
4.30
自引率
4.20%
发文量
28
审稿时长
18-36 weeks
期刊介绍: The Journal of Pesticide Science publishes the results of original research regarding the chemistry and biochemistry of pesticides including bio-based materials. It also covers their metabolism, toxicology, environmental fate and formulation.
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