Journal of Chemical Ecology

, Volume 36, Issue 2, pp 205–209 | Cite as

Reduced Photosynthetic Activity is Directly Correlated with 2-(3H)-benzoxazolinone Accumulation in Lettuce Leaves

  • Adela M. Sánchez-Moreiras
  • Alberto Oliveros-Bastidas
  • Manuel J. Reigosa
Rapid Communication

Abstract

2-(3H)-Benzoxazolinone (BOA) is a secondary plant metabolite previously found to inhibit plant growth and development. The phytotoxic activity of BOA has been extensively demonstrated over the last years. However, the relation of BOA phytotoxicity with BOA accumulation in plant leaves has not been thoroughly investigated. In this work, BOA phytotoxicity on photosynthesis (ΦPSII and Pn) of lettuce (Lactuca sativa L. cv. Great Lakes) was studied, and these results were correlated with BOA quantities in the leaves. BOA-treated plants showed reduced photosynthesis rate 6 h after the beginning of the treatment, and the efficiency of photosystem II started to be affected 10 h after treatment. These results were correlated with an increasing concentration of BOA in leaves that starts 6 h after treatment and shows a maximum at 96 h.

Keywords

BOA action HPLC Photosynthetic activity Phytotoxicity 

Notes

Acknowledgements

The authors are grateful to Oliver Weiss for help in the photosynthesis measurements, and Eva Diéguez and Francisco Macías from the University of Cádiz for their help with the HPLC measurements and their wise advice.

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Adela M. Sánchez-Moreiras
    • 1
  • Alberto Oliveros-Bastidas
    • 2
  • Manuel J. Reigosa
    • 1
  1. 1.Facultade de Bioloxía, Departamento de Bioloxía Vexetal e Ciencia do SoloUniversidade de VigoVigoSpain
  2. 2.Facultad de Ciencias, Departamento de Química OrgánicaUniversidad de CádizCádizSpain

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