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This article in JEQ

  1. Vol. 32 No. 6, p. 2265-2271
     
    Received: Jan 31, 2003
    Published: Nov, 2003


    * Corresponding author(s): catherine.fernandez@up.univ-mrs.fr
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doi:10.2134/jeq2003.2265

Phenols and Flavonoids in Aleppo Pine Needles as Bioindicators of Air Pollution

  1. Christine Roblesa,
  2. Stéphane Greffa,
  3. Vanina Pasqualinib,
  4. Suzanne Garzinoa,
  5. Anne Bousquet-Méloua,
  6. Catherine Fernandez *a,
  7. Nathalie Korboulewskya and
  8. Gilles Bonina
  1. a LBEM/IMEP–UMR CNRS 6116, Université de Provence, Centre de St. Jérome, Case 421 Bis 13 397 Marseille, Cedex 20, France
    b Université de Corse, Faculté des Sciences et Techniques, Equipe Ecosystèmes littoraux, B.P. 52, 20250 Corte, France

Abstract

The aim of the present study is to assess whether certain ecophysiological responses (contents of total phenols, total proanthocyanidins, and total and simple flavonols), in the needles of Aleppo pines (Pinus halepensis Mill.) may be valid bioindicators for the assessment of the air quality. Samples were taken at five natural sites polluted by various pollutants (NO, NO2, other NO x , SO2, and O3). The results show a decrease in total phenol concentrations with levels of nitrogen oxide pollutions (significant negative correlations between the total phenol concentrations and concentrations of NO, NO2, and other NO x ). Total flavonoids (total flavonols and proanthocyanidins) are useful bioindicators for ozone pollution (significant negative correlations between total proanthocyanidins and the concentrations of ozone and significant positive correlations between total flavonols and the ozone pollution). Sulfur dioxide pollution is distinguished by low concentrations in quercetin, isorhamnetin, and kaempferol (significant negative correlations between these simple flavonols and the concentrations of SO2). This work confirms the strong interest of using the phenolic compounds of Pinus halepensis as biological indicators of air quality.

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Copyright © 2003. American Society of Agronomy, Crop Science Society of America, Soil Science SocietyASA, CSSA, SSSA