Journal of Chemical Ecology

, Volume 33, Issue 1, pp 105–114

Interaction Between Atmospheric CO2 and Glucosinolates in Broccoli

  • I. Schonhof
  • H.-P. Kläring
  • A. Krumbein
  • M. Schreiner
Article

Abstract

Total and individual glucosinolate contents of broccoli cv Marathon were assessed at ambient CO2 (430–480 ppm) and elevated atmospheric CO2 (685–820 ppm) to determine the ecological relationship between changing atmospheric CO2 concentrations and phytochemicals. Elevated atmospheric CO2 concentration had a differing effect on individual glucosinolates and glucosinolate groups. Total glucosinolate content increased at elevated atmospheric CO2 concentration as a result of a strong increase in both methylsulfinylalkyl glucosinolates glucoraphanin and glucoiberin. In contrast, indole glucosinolates simultaneously decreased, predominantly because of a reduction of glucobrassicin and 4-methoxy-glucobrassicin contents. We conclude that changes in N content and N/S ratios as well as alterations in photochemical processes at elevated atmospheric CO2 concentration can influence total and individual glucosinolates contents of Brassicaceae, as demonstrated in the greenhouse, for broccoli.

Keywords

Carbon dioxide Brassica oleracea var. italica Alkyl glucosinolate Indole glucosinolate Chlorophyll fluorescence 

Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • I. Schonhof
    • 1
  • H.-P. Kläring
    • 1
  • A. Krumbein
    • 1
  • M. Schreiner
    • 1
  1. 1.Institute of Vegetable and Ornamental Crops Großbeeren and Erfurt e. V.GroßbeerenGermany

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