Wheat (Triticum aestivum L.) grain proteome response to elevated [CO2] varies between genotypes

Arachchige, Pramesha Madurangi S. and Ang, Ching-Seng and Nicolas, Marc E. and Panozzo, Joe and Fitzgerald, Glenn and Hirotsu, Naoki and Seneweera, Saman (2017) Wheat (Triticum aestivum L.) grain proteome response to elevated [CO2] varies between genotypes. Journal of Cereal Science, 75. pp. 151-157. ISSN 0733-5210


Abstract

The impact of rising carbon dioxide concentration ([CO2]) in the atmosphere on wheat grain protein concentration and proteome was investigated in this study. Wheat genotypes (H45, SB003, SB062 and Yitpi) were grown in the Australian Grains Free-Air CO2 Enrichment (AGFACE) facility, Horsham, Victoria, Australia under ambient [CO2] (a[CO2], 391 μmol mol−1) and elevated [CO2] (e[CO2], 550 ± 20 μmol mol−1). Grain yield and grain protein concentration were measured. Global grain proteome comparison was carried out using stable isotope dimethyl labelling followed by liquid chromatography - mass spectrometry (LC-MS/MS). Grain yield was significantly increased at e[CO2], whereas protein concentration was significantly decreased and responses varied between genotypes. Proteome-wide analysis revealed that protein composition was also altered under e[CO2]. Grain protein concentration and composition of SB003 was very responsive to e[CO2]. Mainly storage proteins were decreased at e[CO2] and the responses varied between genotypes. These findings suggest that e[CO2] may have a major impact on grain protein quality and thus bread quality and human and animal nutrition. Further, these findings suggest that [CO2] insensitive cultivars can be identified for grain quality improvement under changing climate.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Current - Institute for Life Sciences and the Environment - Centre for Crop Health (24 Mar 2014 -)
Faculty/School / Institute/Centre: Current - Institute for Life Sciences and the Environment - Centre for Crop Health (24 Mar 2014 -)
Date Deposited: 07 Jun 2022 02:10
Last Modified: 07 Jun 2022 05:31
Uncontrolled Keywords: Free-air carbon dioxide enrichment; Wheat; Protein; Proteome
Fields of Research (2008): 07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070306 Crop and Pasture Nutrition
05 Environmental Sciences > 0503 Soil Sciences > 050304 Soil Chemistry (excl. Carbon Sequestration Science)
07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070302 Agronomy
Fields of Research (2020): 41 ENVIRONMENTAL SCIENCES > 4106 Soil sciences > 410604 Soil chemistry and soil carbon sequestration (excl. carbon sequestration science)
30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3004 Crop and pasture production > 300403 Agronomy
30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3004 Crop and pasture production > 300407 Crop and pasture nutrition
Identification Number or DOI: https://doi.org/10.1016/j.jcs.2017.03.010
URI: http://eprints.usq.edu.au/id/eprint/48729

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