Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/99361
Title: Effects of pre-industrial, current and future [CO2] in traditional and modern wheat genotypes
Author: Aljazairi López, Salvador
Arias, Claudia
Sánchez, Elena
Lino Villanueva, Gladys Liliana
Nogués Mestres, Salvador
Keywords: Canvis climàtics
Blat
Millorament selectiu de plantes
Climatic changes
Wheat
Plant breeding
Issue Date: 1-Nov-2014
Publisher: Elsevier
Abstract: Wheat is one of the most important cereal food crops in the world today. The productivity and quality of this crop is greatly affected by environmental conditions during grain filling. In this study, we have analyzed two genotypes of durum wheat, Blanqueta and Sula (traditional and a modern wheat respectively) in pre-industrial, current and future [CO2]. Plant growth and physiological parameters were analyzed during anthesis and grain filling in order to study the capacity of these plants to create new sinks and their role during the process of the acclimation of photosynthesis. It was observed that plants underwent photosynthetic acclimation at pre-industrial and future [CO2] (up and down-regulation respectively). However, the modern genotype averts the process of down-regulation by creating a new carbon sink (i.e. the spike). Here, we have shown the essential role that the spike plays as a new sink in order to avert the down-regulation of photosynthesis at future [CO2]. Moreover, we have demonstrated that at future [CO2] the growth response will depend on the ability of plants to develop new sinks or expand existing ones.
Note: Versió postprint del document publicat a: http://dx.doi.org/10.1016/j.jplph.2014.07.019
It is part of: Journal of Plant Physiology, 2014, vol. 171, num. 17, p. 1654-1663
Related resource: http://dx.doi.org/10.1016/j.jplph.2014.07.019
URI: http://hdl.handle.net/2445/99361
ISSN: 0176-1617
Appears in Collections:Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)

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