Full text of this article is only available in PDF format.

Pekka Lähdesmäki (email), Pekka Pietiläinen

Seasonal variation in the nitrogen metabolism of young Scots pine.

Lähdesmäki P., Pietiläinen P. (1988). Seasonal variation in the nitrogen metabolism of young Scots pine. Silva Fennica vol. 22 no. 3 article id 5356. https://doi.org/10.14214/sf.a15513

Abstract

Seasonal changed in total nitrogen, protein, amino acid, ammonia, nitrate and nitrite concentrations, and nitrate reductase and γ-glutamyltransferase activities in the needles, buds and shoots of young Scots pine (Pinus sylvestris L.) were studied. A relationship between the variation in the nitrogen metabolism and both winter dormancy and its breaking was proposed. Pine tissues stored soluble nitrogen over the winter largely in the form of arginine which, in addition to a high nitrogen content, can neutralize acidic cytoplasmic constituents such as nitrates and nitrites. Specific nitrate reductase and γ-glutamyltransferase activities were highest in late summer or autumn, and is apparently connected to the mobilization of nitrogen reserves for the winter.

The PDF includes an abstract in Finnish.

Keywords
Pinus sylvestris; winter dormancy; amino acids; arginine; proteins; nitrate reductase; γ-glutamyltransferase; pine buds and needles; nitrogen metabolism

Published in 1988

Views 4727

Available at https://doi.org/10.14214/sf.a15513 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Send to email
Hökkä H., Repola J. et al. (2012) Seedling establishment on small cutting areas wi.. Silva Fennica vol. 46 no. 5 article id 920 (remove) | Edit comment
Långström B., (1971) Weight loss, water content and mortality of cold.. Silva Fennica vol. 5 no. 1 article id 4834 (remove) | Edit comment
Murto J. O., (1951) Finnish Scots pine resin as raw material for lub.. Acta Forestalia Fennica vol. 59 no. 2 article id 7406 (remove) | Edit comment
Repola J., (2006) Models for vertical wood density of Scots pine, .. Silva Fennica vol. 40 no. 4 article id 322 (remove) | Edit comment
Luukkanen O., (1973) Observations on CO2 exchange in open pollinated .. Silva Fennica vol. 7 no. 4 article id 4888 (remove) | Edit comment
Kuuluvainen T., (2002) Introduction. Disturbance dynamics in boreal for.. Silva Fennica vol. 36 no. 1 article id 547 (remove) | Edit comment
Hovi A., Mõttus M. et al. (2020) Evaluating the performance of a double integrati.. Silva Fennica vol. 54 no. 2 article id 10270 (remove) | Edit comment
Lähdesmäki P., Pietiläinen P. (1988) Seasonal variation in the nitrogen metabolism of.. Silva Fennica vol. 22 no. 3 article id 5356 (remove) | Edit comment
Your search results