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Lipoxygenase (LOX) enzyme activity of wheat during grain filling period under conservation agriculture management

By: Brijesh Kumar.
Contributor(s): Tiwari, A | Saharawat, Y.S | McDonald, A | Jat, M.L.
Material type: materialTypeLabelArticlePublisher: New Delhi, India : Journals pub, 2015Subject(s): Lipoxygenase | Conservation agricultureOnline resources: Access only for CIMMYT Staff In: International Journal of Plant Biotechnology v. 1, no. 1Summary: For smooth and wider adoption of conservation agriculture (CA), remaining uncertainties about its impacts on quality crop yield need to be reduced through study of physiological performance. The objectives of this study were to examine the lipoxygenase (LOX) enzyme activity in flag leaves of wheat as an important factor influencing future grain quality during the grain filling period. This study, carried out over two consecutive wheat growth seasons (rabi season 2012/2013 and 2013/2014), examined how edaphic factor that was influenced by reduced tillage, crop residue retention and crop rotation, brought physiological contents in leaves of the wheat. Results found that the lowest level of LOX activity was found 0.65 (µmol linoleic acid oxidized mg protein-1 min-1 )in flag leaves of wheat, in which conventional agriculture practiced while highest level of activity was found 2.14, in which conservation agriculture practice adopted and there was significant difference recorded. Due to multiple function of lipoxygenase as physiological process in growth and development, defense system to pathogen, wound stress, flavor formation of bread and aroma production as well as signal molecules, and adverse implications for the grain color and antioxidant status of plant-based foods, the determination of LOX activity is necessary in wheat growing in different agricultural management.
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Article CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Staff Publications Collection Available
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For smooth and wider adoption of conservation agriculture (CA), remaining uncertainties about its impacts on quality crop yield need to be reduced through study of physiological performance. The objectives of this study were to examine the lipoxygenase (LOX) enzyme activity in flag leaves of wheat as an important factor influencing future grain quality during the grain filling period. This study, carried out over two consecutive wheat growth seasons (rabi season 2012/2013 and 2013/2014), examined how edaphic factor that was influenced by reduced tillage, crop residue retention and crop rotation, brought physiological contents in leaves of the wheat. Results found that the lowest level of LOX activity was found 0.65 (µmol linoleic acid oxidized mg protein-1 min-1 )in flag leaves of wheat, in which conventional agriculture practiced while highest level of activity was found 2.14, in which conservation agriculture practice adopted and there was significant difference recorded. Due to multiple function of lipoxygenase as physiological process in growth and development, defense system to pathogen, wound stress, flavor formation of bread and aroma production as well as signal molecules, and adverse implications for the grain color and antioxidant status of plant-based foods, the determination of LOX activity is necessary in wheat growing in different agricultural management.

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