Journal of Integrative Agriculture ›› 2015, Vol. 14 ›› Issue (4): 714-723.DOI: 10.1016/S2095-3119(14)60869-8

• 论文 • 上一篇    下一篇

Use of chlorophyll fluorescence and P700 absorbance to rapidly detect glyphosate resistance in goosegrass (Eleusine indica)

 ZHANG Tai-jie, FENG Li, TIAN Xing-shan, YANG Cai-hong, GAO Jia-dong   

  1. Institute of Plant Protection, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, P.R.China
  • 收稿日期:2014-03-04 出版日期:2015-04-01 发布日期:2015-04-10
  • 通讯作者: TIAN Xing-shan, Tel/Fax: +86-20-85518286, E-mail: xstian@tom.com
  • 作者简介:ZHANG Tai-jie, Tel: +86-20-87594497, E-mail: miner08@126.com;
  • 基金资助:

    This work was supported by the Agricultural Research Project in Guangdong Province, China (2012A020100009).

Use of chlorophyll fluorescence and P700 absorbance to rapidly detect glyphosate resistance in goosegrass (Eleusine indica)

 ZHANG Tai-jie, FENG Li, TIAN Xing-shan, YANG Cai-hong, GAO Jia-dong   

  1. Institute of Plant Protection, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, P.R.China
  • Received:2014-03-04 Online:2015-04-01 Published:2015-04-10
  • Contact: TIAN Xing-shan, Tel/Fax: +86-20-85518286, E-mail: xstian@tom.com
  • About author:ZHANG Tai-jie, Tel: +86-20-87594497, E-mail: miner08@126.com;
  • Supported by:

    This work was supported by the Agricultural Research Project in Guangdong Province, China (2012A020100009).

摘要: The rapid detection of glyphosate resistance in goosegrass (Eleusine indica) will enhance our ability to respond to new resistant populations of this major weed. Chlorophyll fluorescence (Fluo) and P700 (reaction center chlorophyll of photosystem I) absorbance were analyzed in one biotype of goosegrass that is resistant to glyphosate and in another that remains sensitive to the herbicide. Both biotypes were treated with a foliar spray of glyphosate. Differences in photosystem II maximum quantum yield (Fv/Fm), effective photochemical quantum yield (Y(II)), and non-photochemical quenching (NPQ) between the biotypes increased over time. Values for Fv/Fm and Y(II) differed between the two biotypes 24 h after treatment (HAT). Differentiated activities and energy dissipation processes of photosystem II (PSII) and energy dissipation processes of photosystem I (PSI) were manifested in the two biotypes 24 HAT with 20 mmol L–1 glyphosate. Differentiated energy dissipation processes of PSI were still apparent 24 HAT with 200 mmol L–1 glyphosate. These results indicate that the Fluo parameters related to PSII activity and energy dissipation and the P700 parameters related to energy dissipation are suitable indicators that enable rapid detection of glyphosate resistance in goosegrass.

关键词: Eleusine indica , glyphosate , resistance , chlorophyll fluorescence , P700

Abstract: The rapid detection of glyphosate resistance in goosegrass (Eleusine indica) will enhance our ability to respond to new resistant populations of this major weed. Chlorophyll fluorescence (Fluo) and P700 (reaction center chlorophyll of photosystem I) absorbance were analyzed in one biotype of goosegrass that is resistant to glyphosate and in another that remains sensitive to the herbicide. Both biotypes were treated with a foliar spray of glyphosate. Differences in photosystem II maximum quantum yield (Fv/Fm), effective photochemical quantum yield (Y(II)), and non-photochemical quenching (NPQ) between the biotypes increased over time. Values for Fv/Fm and Y(II) differed between the two biotypes 24 h after treatment (HAT). Differentiated activities and energy dissipation processes of photosystem II (PSII) and energy dissipation processes of photosystem I (PSI) were manifested in the two biotypes 24 HAT with 20 mmol L–1 glyphosate. Differentiated energy dissipation processes of PSI were still apparent 24 HAT with 200 mmol L–1 glyphosate. These results indicate that the Fluo parameters related to PSII activity and energy dissipation and the P700 parameters related to energy dissipation are suitable indicators that enable rapid detection of glyphosate resistance in goosegrass.

Key words: Eleusine indica , glyphosate , resistance , chlorophyll fluorescence , P700