Synergistic adaptations: Freezing tolerance is associated with desiccation tolerance and activation of violaxanthin de-epoxidase in wintergreen ferns
Department(s)
Natural Science
Document Type
Article
Publication Date
4-2-2021
Keywords
Desiccation tolerance, embolism, F /F v m, fern, freezing tolerance, wintergreen, xanthophyll, xylem
Abstract
Some ferns can survive substantial abiotic stress. In this issue, Fernández-Marín et al. (2021a) identify an overlap between two seemingly disparate stressors: freezing and near-complete desiccation. The authors determine that three desiccation-tolerant (DT) fern species are also tolerant to freezing at-7 °C, analyzing several traits that may confer both freezing tolerance and desiccation tolerance. In particular, the authors discovered that DT ferns exhibit freezing-induced activation of violaxanthin de-epoxidase in the absence of light. This study complements previous studies finding overlap between desiccation tolerance and freezing tolerance in angiosperms and lichens, providing evidence for a broader trend across the phylogeny.
Publication Title
Journal of Experimental Botany
ISSN
00220957
E-ISSN
14602431
Volume
72
Issue
8
First Page
2814
Last Page
2817
DOI
10.1093/jxb/erab068
Recommended Citation
Holmlund, Helen I., "Synergistic adaptations: Freezing tolerance is associated with desiccation tolerance and activation of violaxanthin de-epoxidase in wintergreen ferns" (2021). Pepperdine University, All Faculty Open Access Publications. Paper 2.
https://digitalcommons.pepperdine.edu/faculty_pubs/2