AI Article Synopsis
- The study examined the effects of elevated carbon dioxide (CO2) and the antiozonant Ethylenediurea (EDU) on three wheat varieties exposed to high ozone levels, revealing that these treatments helped mitigate ozone's harmful impacts.
- The presence of elevated ozone negatively affected wheat growth, but the combination of elevated CO2 and EDU improved antioxidant activities and protein expression, crucial for enhancing resilience against ozone stress.
- Significant changes in protein abundance were noted during different growth stages, with specific wheat varieties responding better to the treatments, indicating variations in adaptability and stress response.
Article Abstract
The present study investigated growth, biochemical, physiological, yield and proteomic changes in 3 wheat varieties exposed to elevated CO (515 ppm) in a background of high ambient ozone in field. Ethylenediurea (EDU) was used as antiozonant. Average ozone concentration was 59 ppb and was sufficient enough to exert phytotoxic effects. Elevated carbon dioxide (eCO) and EDU application individually or in combination negated the adverse effects of ozone by modulating antioxidants and antioxidative enzymes. Differential leaf proteomics revealed that at vegetative stage major changes in protein abundance were due to EDU treatment (47, 52 and 41 proteins in PBW-343, LOK1 and HD-2967, respectively). Combined treatment of eCO and EDU was more responsible for changes in 37 proteins during flowering stage of PBW-343 and LOK1. Functional categorization revealed more than 60% differentially abundant protein collectively belonging to carbon metabolism, protein synthesis assembly and degradation and photosynthesis. At both the growth stages, LOK1 was more responsive to eCO and combined treatment (eCO + EDU). HD-2967 was more positively responsive to EDU and combined treatment. eCO in combination of EDU protected these varieties against high ambient O.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7326879 | PMC |
| http://dx.doi.org/10.1007/s12298-020-00828-9 | DOI Listing |
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