University of Oulu

Muilu-Mäkelä R, Vuosku J, Saarinen M, Hamberg L, Ruotsalainen S, Häggman H, Sarjala T (2017). Coping with spring frost-effects on polyamine metabolism of Scots pine seedlings. iForest 10: 227-236. - doi: 10.3832/ifor2003-009

Coping with spring frost-effects on polyamine metabolism of Scots pine seedlings

Saved in:
Author: Muilu-Mäkelä, Riina1,2; Vuosku, Jaana2; Saarinen, Markku1;
Organizations: 1Natural Resources Institute Finland (Luke), Parkano Research Unit, FI-39700 Parkano (Finland)
2Genetics and Physiology department, University of Oulu, P.O. Box 3000, FI-90014 Oulu (Finland)
3Natural Resources Institute Finland (Luke), Vantaa Research Unit, FI- 01370, Vantaa (Finland)
4Natural Resources Institute Finland (Luke), Punkaharju Research Unit, FI-58450, Punkaharju (Finland)
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.7 MB)
Persistent link:
Language: English
Published: SISEF, 2017
Publish Date: 2021-03-08


Polyamines (PA) are ubiquitous polycations known to be involved in several phases of plant development as well as in tolerance to abiotic stresses. Phenols are complex secondary metabolites produced via the phenylpropanoid pathway that contain, e.g., cell wall compounds and antioxidants. Phenols are known to enhance chilling tolerance of plants. PA and phenolic pathways are connected via conjugation. In boreal coniferous forests spring frost has been considered to have severe effects on the survival of tree seedlings. Such effects are likely to increase in the future. The present study focuses on the role of PA and phenylpropanoid syntheses in the coping strategies of Scots pine exposed to cold temperatures during the vulnerable early seedling phase in late spring and early summer. We found that spring frost affects the expression of genes regulating PA metabolism and phenylpropanoid synthesis differently in above and below ground parts of the seedlings, whereas PA or phenol contents in tissues were not affected. The results suggest that Scots pine seedlings may not have time to develop metabolite level responses during a short period of freezing stress and, therefore, the originally different PA levels, especially in roots, may influence the tolerance of Scots pine seedlings to spring frost.

see all

Series: iForest
ISSN: 1971-7458
ISSN-E: 1971-7458
ISSN-L: 1971-7458
Volume: 10
Pages: 227 - 236
DOI: 10.3832/ifor2003-009
Type of Publication: A1 Journal article – refereed
Field of Science: 1184 Genetics, developmental biology, physiology
1183 Plant biology, microbiology, virology
Funding: The research was funded by the Thule Institute (2010-2013) (to HH), Academy of Finland (Project 121994 to TS) and Graduate School of Forest Sciences (2012-2016) (to RMM).
Copyright information: © SISEF - The Italian Society of Silviculture and Forest Ecology 2017. This article is distributed under the terms of the Creative Commons Attribution-Non Commercial 4.0 International (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.