Growth response of Mountain birch to air and soil temperature: is increasing leaf-nitrogen content an acclimation to lower air temperature? Export

@article{citeulike:2895274, abstract = {Summary . Growth and nitrogen (N) economy of mountain birch are reported here in response to temperature change. Mechanisms of temperature effects on plant growth in temperate-arctic regions are discussed in the light of decreasing growth rates and increasing leaf-N contents along altitudinal and latitudinal temperature gradients. . Mountain birch (Betula pubescens ssp. czerepanovii) seedlings were grown at two soil temperatures, air temperatures and nutrient concentrations in a full-factorial experiment during one growing season in northern Sweden. . Changes in air and soil temperature affected aboveground growth more than belowground growth. An increase in air temperature increased leaf area ratio and plant-N productivity while decreasing plant-N concentration and leaf-N content. A change in soil temperature affected root-N uptake rate and plant-N concentration, similar to the effect of a change in nutrient supply. Air and soil temperature had interactive effects on growth rate, N productivity and leaf-N content. . The results indicate that increasing leaf-N content with increasing altitude and latitude is not only a passive consequence of weaker N dilution by reduced growth, but also a physiological acclimation to lower air temperature.}, author = {Weih, M. and Karlsson, P. S.}, citeulike-article-id = {2895274}, citeulike-linkout-0 = {http://www.blackwell-synergy.com/doi/abs/10.1046/j.1469-8137.2001.00078.x}, citeulike-linkout-1 = {http://dx.doi.org/10.1046/j.1469-8137.2001.00078.x}, doi = {10.1046/j.1469-8137.2001.00078.x}, journal = {New Phytologist}, keywords = {acclimation, arctic, nitrogen, temperature}, number = {1}, pages = {147--155}, posted-at = {2008-06-15 04:23:01}, priority = {2}, title = {Growth response of Mountain birch to air and soil temperature: is increasing leaf-nitrogen content an acclimation to lower air temperature?}, url = {http://dx.doi.org/10.1046/j.1469-8137.2001.00078.x}, volume = {150}, year = {2001} }

TY - JOUR ID - citeulike:2895274 L3 - citeulike-article-id:2895274 N2 - Summary . Growth and nitrogen (N) economy of mountain birch are reported here in response to temperature change. Mechanisms of temperature effects on plant growth in temperate-arctic regions are discussed in the light of decreasing growth rates and increasing leaf-N contents along altitudinal and latitudinal temperature gradients. . Mountain birch (Betula pubescens ssp. czerepanovii) seedlings were grown at two soil temperatures, air temperatures and nutrient concentrations in a full-factorial experiment during one growing season in northern Sweden. . Changes in air and soil temperature affected aboveground growth more than belowground growth. An increase in air temperature increased leaf area ratio and plant-N productivity while decreasing plant-N concentration and leaf-N content. A change in soil temperature affected root-N uptake rate and plant-N concentration, similar to the effect of a change in nutrient supply. Air and soil temperature had interactive effects on growth rate, N productivity and leaf-N content. . The results indicate that increasing leaf-N content with increasing altitude and latitude is not only a passive consequence of weaker N dilution by reduced growth, but also a physiological acclimation to lower air temperature. IS - 1 JF - New Phytologist EP - 155 TI - Growth response of Mountain birch to air and soil temperature: is increasing leaf-nitrogen content an acclimation to lower air temperature? VL - 150 SP - 147 KW - acclimation KW - arctic KW - nitrogen KW - temperature AU - Weih, M AU - Karlsson, PS PY - 2001/// UR - http://dx.doi.org/10.1046/j.1469-8137.2001.00078.x ER -