Polyamines and their roles in the alleviation of ion toxicities in plants

S Lutts, JF Hausman, M Quinet, I Lefèvre - Ecophysiology and responses …, 2013 - Springer
Polyamines are ubiquitous polycationic aliphatic compounds known to be essential in
physiological responses to different abiotic constraints in plants. Among others, they are …

Cryopreservation of embryogenic cultures of Scots pine

HM Häggman, LA Ryynänen, TS Aronen… - Plant Cell, Tissue and …, 1998 - Springer
The aim of the study was to develop an effective cryopreservation method for Scots pine
(Pinus sylvestris L.) embryogenic cultures. Altogether nine cell lines derived from three …

Tissue browning of in vitro cultures of Scots pine: role of peroxidase and polyphenol oxidase

H Laukkanen, H Häggman… - Physiologia …, 1999 - Wiley Online Library
Callus cultures from shoot tips of mature Scots pine (Pinus sylvestris L.) were characterized
by rapid browning and an inability to regenerate. The peroxidase (POD) and polyphenol …

Biological characterization of young and aged embryogenic cultures of Pinus pinaster (Ait.)

K Klimaszewska, C Noceda, G Pelletier, P Label… - In Vitro Cellular & …, 2009 - Springer
Pinus pinaster (Ait.) somatic embryogenesis (SE) has been developed during the last
decade, and its application in tree improvement programs is underway. Nevertheless, a few …

Pine somatic embryogenesis: analyses of seed tissue and medium to improve protocol development

GS Pullman, K Bucalo - New Forests, 2014 - Springer
The shift from vegetative to embryogenic growth requires tissue to enter a radically different
program of development and can be studied in vitro through the development of somatic …

Somatic embryogenesis of Scots pine: cold treatment and characteristics of explants affecting induction

H Häggman, A Jokela, J Krajnakova… - Journal of …, 1999 - academic.oup.com
This is the first report on Scots pine (Pinus sylvestris L.) somatic embryo plants regenerated
and growing in a greenhouse. The present work focused on improving somatic …

Exogenous putrescine affects endogenous polyamine levels and the development of Picea abies somatic embryos

Z Vondráková, K Eliášová, M Vágner… - Plant growth …, 2015 - Springer
Embryogenic cultures of Norway spruce (Picea abies) were treated with exogenous
putrescine (Put) applied via either proliferation or maturation media to determine how such …

Effects of polyethylene glycol and methylglyoxal bis (guanylhydrazone) on endogenous polyamine levels and somatic embryo maturation in white spruce (Picea …

L Kong, SM Attree, LC Fowke - Plant Science, 1998 - Elsevier
In maturation cultures, non-plasmolysing moisture stress induced by polyethylene glycol
(PEG) 4000 reduced white spruce embryogenic tissue proliferation and stimulated somatic …

Moderate stress responses and specific changes in polyamine metabolism characterize Scots pine somatic embryogenesis

HM Salo, T Sarjala, A Jokela, H Häggman… - Tree …, 2016 - academic.oup.com
Somatic embryogenesis (SE) is one of the methods with the highest potential for the
vegetative propagation of commercially important coniferous species. However, many …

Effects of exogenous diamines on the interaction between ectomycorrhizal fungi and adventitious root formation in Scots pine in vitro

K Niemi, H Häggman, T Sarjala - Tree Physiology, 2002 - academic.oup.com
Production of free and conjugated polyamines by two ectomycorrhizal fungi, Pisolithus
tinctorius (Pers.) Coker and Couch and Paxillus involutus (Batsch) Fr., was studied in vitro …