1,689
Views
0
CrossRef citations to date
0
Altmetric
Original Articles

La résistance naturelle au gel chez les Végétaux

&
Pages 7-25 | Published online: 10 Jul 2014
 

Résumé

La résistance naturelle aux très basses températures chez les végétaux est acquise après une déshydratation physiologique liée à certaines étapes du cycle de reproduction (grains de pollen, semences) ou après un endurcissement, en période hivernale (arbres). Si les mécanismes de la résistance aux très basses températures au niveau de la plante entière commencent à être compris (cristallisation intra et extaorgane), ceux de l'adaptation de la cellule végétale aux stress induits par la cristallisation extracellulaire sont encore mal connus.

Summary

The natural resistance of plants to ultra-low temperatures is improved by a physiological dehydration in connection with sexual reproduction (pollen and seeds) or after the hardening process, in the case of overwintering plants (woody plants). If mechanisms of freezing resistance at the plant level start to be well understood (intra- and extra organ freezing), the adaptations of plant cells to stresses induced by the extracellular ice formation are still badly known.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.