Hormone- and light-mediated regulation of heat-induced differential petiole growth in Arabidopsis thaliana Export

@article{citeulike:5780734, abstract = {Plants react quickly and profoundly to changes in their environment. A sudden increase in temperature induces for example differential petiole growth driven upward leaf movement (hyponastic growth) in Arabidopsis thaliana. We show that accessions that face the strongest fluctuations in diurnal temperature in their natural habitat are least sensitive for heat-induced hyponastic growth. This indicates that heat-induced hyponastic growth is a trait subjected to natural selection. The response is induced with kinetics remarkably similar to ethylene- and low light-induced hyponasty in several accessions. Using pharmacological assays, transcript analysis and mutant analyses, we demonstrate that ethylene and the photoreceptor protein Phytochrome B are negative regulators of heat-induced hyponastic growth and that low light, Phytochrome A, auxin, polar auxin transport and abscisic acid are positive regulators of heat-induced hyponastic growth. Furthermore, auxin, auxin polar transport, PhyA, PhyB and Cryptochromes are required for a fast induction of heat-induced hyponastic growth. 10.1104/pp.109.144386}, author = {van Zanten, Martijn and Voesenek, Laurentius A. C. J. and Peeters, Anton J. M. and Millenaar, Frank F.}, citeulike-article-id = {5780734}, citeulike-linkout-0 = {http://dx.doi.org/10.1104/pp.109.144386}, citeulike-linkout-1 = {http://view.ncbi.nlm.nih.gov/pubmed/19741046}, citeulike-linkout-2 = {http://www.hubmed.org/display.cgi?uids=19741046}, day = {9}, doi = {10.1104/pp.109.144386}, journal = {Plant Physiol.}, keywords = {heat, hormone, petiole, phya, phyb}, month = {September}, pages = {pp.109.144386+}, posted-at = {2009-09-14 13:11:01}, priority = {2}, title = {Hormone- and light-mediated regulation of heat-induced differential petiole growth in Arabidopsis thaliana}, url = {http://dx.doi.org/10.1104/pp.109.144386}, year = {2009} }

TY - JOUR ID - citeulike:5780734 L3 - citeulike-article-id:5780734 N2 - Plants react quickly and profoundly to changes in their environment. A sudden increase in temperature induces for example differential petiole growth driven upward leaf movement (hyponastic growth) in Arabidopsis thaliana. We show that accessions that face the strongest fluctuations in diurnal temperature in their natural habitat are least sensitive for heat-induced hyponastic growth. This indicates that heat-induced hyponastic growth is a trait subjected to natural selection. The response is induced with kinetics remarkably similar to ethylene- and low light-induced hyponasty in several accessions. Using pharmacological assays, transcript analysis and mutant analyses, we demonstrate that ethylene and the photoreceptor protein Phytochrome B are negative regulators of heat-induced hyponastic growth and that low light, Phytochrome A, auxin, polar auxin transport and abscisic acid are positive regulators of heat-induced hyponastic growth. Furthermore, auxin, auxin polar transport, PhyA, PhyB and Cryptochromes are required for a fast induction of heat-induced hyponastic growth. 10.1104/pp.109.144386 JF - Plant Physiol. TI - Hormone- and light-mediated regulation of heat-induced differential petiole growth in Arabidopsis thaliana SP - pp.109.144386 KW - heat KW - hormone KW - petiole KW - phya KW - phyb AU - van Zanten, Martijn AU - Voesenek, Laurentius AU - Peeters, Anton AU - Millenaar, Frank PY - 2009/09/09/ UR - http://dx.doi.org/10.1104/pp.109.144386 ER -