caa a22 4500 445389575 CHVBK 20180317143042.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00049-010-0060-4 doi (NATIONALLICENCE)springer-10.1007/s00049-010-0060-4 Identification of flavonoids in Pinus Laricio needles and changes occurring after prescribed burning [Elektronische Daten] [Magali Cannac, Lila Ferrat, Toussaint Barboni, Nathalie Chiaramonti, Frédéric Morandini, Vanina Pasqualini] Prescribed burning is increasingly being used as a fire prevention tool in forest management; however, it can cause thermal stress to trees. Its effects on pine physiology have been poorly understood. Flavonoids are highly indicative of plants' responses to environmental stress, and in this study, we used flavonoid concentrations in pine needles to assess fire impact on a Corsican Pinus laricio Poir. forest up to 4years after prescribed burning. This is the first study that highlighted the presence of flavonols in P. laricio and indicated kaempferol to be the major compound. The total flavonol content increased by 60% 3months after 1 or 2 prescribed low-intensity burnings and returned to the pre-burning level after 1year. This suggests that thermal stress events caused defensive production of flavonoids. Prescribed burnings performed at 3-year intervals did not appear to alter flavonoid levels. In the light of these findings, forest managers may consider the use of prescribed burning at 3-year intervals as a means to reduce fuel loads, while minimizing the impact on P. laricio. Springer Basel AG, 2010 Fire prevention nationallicence Stress nationallicence Total flavonols nationallicence Kaempferol nationallicence Identification nationallicence Cannac Magali University of Corsica, UMR-CNRS 6134, Equipe Feux, BP 52, 20250, Corte, France aut Ferrat Lila University of Corsica, UMR-CNRS 6134, Equipe Feux, BP 52, 20250, Corte, France aut Barboni Toussaint University of Corsica, UMR-CNRS 6134, Equipe Feux, BP 52, 20250, Corte, France aut Chiaramonti Nathalie University of Corsica, UMR-CNRS 6134, Equipe Feux, BP 52, 20250, Corte, France aut Morandini Frédéric University of Corsica, UMR-CNRS 6134, Equipe Feux, BP 52, 20250, Corte, France aut Pasqualini Vanina University of Corsica, UMR-CNRS 6134, Equipe Feux, BP 52, 20250, Corte, France aut Chemoecology SP Birkhäuser Verlag Basel 21/1(2011-03-01), 9-17 0937-7409 21:1<9 2011 21 49 https://doi.org/10.1007/s00049-010-0060-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00049-010-0060-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cannac Magali University of Corsica, UMR-CNRS 6134, Equipe Feux, BP 52, 20250, Corte, France aut NATIONALLICENCE 700 1- Ferrat Lila University of Corsica, UMR-CNRS 6134, Equipe Feux, BP 52, 20250, Corte, France aut NATIONALLICENCE 700 1- Barboni Toussaint University of Corsica, UMR-CNRS 6134, Equipe Feux, BP 52, 20250, Corte, France aut NATIONALLICENCE 700 1- Chiaramonti Nathalie University of Corsica, UMR-CNRS 6134, Equipe Feux, BP 52, 20250, Corte, France aut NATIONALLICENCE 700 1- Morandini Frédéric University of Corsica, UMR-CNRS 6134, Equipe Feux, BP 52, 20250, Corte, France aut NATIONALLICENCE 700 1- Pasqualini Vanina University of Corsica, UMR-CNRS 6134, Equipe Feux, BP 52, 20250, Corte, France aut NATIONALLICENCE 773 0- Chemoecology SP Birkhäuser Verlag Basel 21/1(2011-03-01), 9-17 0937-7409 21:1<9 2011 21 49 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer