Interactions among factors regulating phenological development and acclimation rate determine low-temperature tolerance in wheat

Annals of Botany
D Brian Fowler, Allen E Limin

Abstract

Exposure to low temperatures (LT) produces innumerable changes in morphological, biochemical and physiological characteristics of plants, with the result that it has been difficult to separate cause and effect adjustments to LT. Phenotypic studies have shown that the LT-induced protective mechanisms in cereals are developmentally regulated and involve an acclimation process that can be stopped, reversed and restarted. The present study was initiated to separate the developmental factors determining duration from those responsible for rate of acclimation, to provide the opportunity for a more in depth analysis of the critical mechanisms that regulate LT tolerance in wheat (Triticum aestivum). The non-hardy spring wheat cultivar 'Manitou' and the very cold-hardy winter wheat cultivar 'Norstar' were used to produce reciprocal near-isogenic lines (NILs) in which the vrn-A1 (winter) alleles of 'Norstar' were inserted into the non-hardy 'Manitou' genetic background and the Vrn-A1 (spring) alleles of 'Manitou' were inserted in the hardy 'Norstar' genetic background so that the effects of duration and rate of LT acclimation could be quantified. Comparison of the acclimation curves of the NILs and their parents grown at 2, 6 and 10 degr...Continue Reading

Citations

Jun 24, 2010·Plant Physiology·Taniya DhillonJorge Dubcovsky
Mar 29, 2014·PloS One·Cynthia A HensonDavid P Livingston
Apr 18, 2014·The American Naturalist·David B LowryThomas E Juenger
Dec 30, 2015·Journal of Experimental Botany·Aliz NovákGábor Galiba
Feb 15, 2017·Journal of the Science of Food and Agriculture·Pu-Fang LiWen-Yuan Zhang
Jun 15, 2007·The Plant Journal : for Cell and Molecular Biology·Eric J StockingerNicola Pecchioni
Mar 10, 2010·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Andrea K KnoxEric J Stockinger
Jul 26, 2013·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Stephen PearceJorge Dubcovsky
Aug 7, 2013·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Taniya Dhillon, Eric J Stockinger
Feb 25, 2019·Molecular Biology Reports·Marina L DíazAlicia Carrera
Jul 22, 2017·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Wiltrud ErathChris-Carolin Schön
Aug 11, 2021·Plants·Eric J Stockinger
Aug 5, 2008·Plant Physiology and Biochemistry : PPB·Pavel Vítámvás, Ilja Tom Prásil

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