caa a22 4500 463171772 CHVBK 20180406164815.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s00344-007-9009-4 doi (NATIONALLICENCE)springer-10.1007/s00344-007-9009-4 Effect of Temperature on Growth and Phototropism of Arabidopsis thaliana Seedlings [Elektronische Daten] [Vladimir Orbović, Kenneth Poff] Seedlings of Arabidopsis thaliana grown at 25°C responded to a change in growth temperature by changing their elongation rate within the next 150 min. Regardless of whether the new temperature was higher or lower than 25°C, the seedlings grew slower after the transfer at all tested temperatures. When the seedlings were grown for 2 days at 11.5°C, 17.9°C, and 23.5°C and then transferred to the range of temperatures between 4°C and 38°C they exhibited maximum elongation in the temperature range between 18°C and 23°C. The kinetics of first positive phototropism in seedlings transferred from 25°C to 15°C differed from the kinetics exhibited by seedlings transferred from 25°C to 28°C. At 15°C, measurable curvature began 40-50 min after the blue light (BL) pulse and no straightening was evident within 150 min after the BL pulse. Seedlings transferred to 28°C exhibited kinetics of phototropism similar to the phototropic response of plants maintained at 25°C except that straightening began slightly faster in the seedlings at 28°C. Based on these results, it is concluded that changes in temperature conditions affect both the elongation rate of seedlings and a first positive phototropism and that phototropic curvature and subsequent straightening are independently controlled. Springer Science+Business Media, LLC, 2007 Phototropic curvature nationallicence Kinetics nationallicence Elongation nationallicence Hypocotyl nationallicence Orbović Vladimir Institute for Biological Research, 29 Novembra 142, 11000, Beograd, Serbia aut Poff Kenneth Department of Horticulture, Michigan State University, East Lansing, 48824, Michigan, USA aut Journal of Plant Growth Regulation Springer-Verlag 26/3(2007-09-01), 222-228 0721-7595 26:3<222 2007 26 344 https://doi.org/10.1007/s00344-007-9009-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00344-007-9009-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Orbović Vladimir Institute for Biological Research, 29 Novembra 142, 11000, Beograd, Serbia aut NATIONALLICENCE 700 1- Poff Kenneth Department of Horticulture, Michigan State University, East Lansing, 48824, Michigan, USA aut NATIONALLICENCE 773 0- Journal of Plant Growth Regulation Springer-Verlag 26/3(2007-09-01), 222-228 0721-7595 26:3<222 2007 26 344 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer