Number of the records: 1
Elevated CO2 modulates the effect of heat stress responses in Triticum aestivum by differential expression of an isoflavone reductase-like gene
- 1.
SYSNO ASEP 0553148 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Elevated CO2 modulates the effect of heat stress responses in Triticum aestivum by differential expression of an isoflavone reductase-like gene Author(s) Shokat, S. (DK)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Široká, Jitka (UEB-Q) ORCID
Singh, S. (GB)
Gill, K.S. (US)
Roitsch, Thomas (UEK-B) RID, ORCID, SAI
Grosskinsky, D. K. (AT)
Liu, F. (DK)Number of authors 8 Source Title Journal of Experimental Botany. - : Oxford University Press - ISSN 0022-0957
Roč. 72, č. 21 (2021), s. 7594-7609Number of pages 16 s. Language eng - English Country GB - United Kingdom Keywords high-temperature stress ; carbohydrate-metabolism enzymes ; grain-yield ; antioxidant defenses ; salicylic-acid ; wheat ; tolerance ; drought ; leaf ; thermotolerance ; Antioxidative system ; crop physiology ; F-v/F-m ; heat stress ; phytohormones ; stress tolerance ; wheat OECD category Plant sciences, botany Method of publishing Open access Institutional support UEB-Q - RVO:61389030 ; UEK-B - RVO:86652079 UT WOS 000744583700019 EID SCOPUS 85122290817 DOI 10.1093/jxb/erab247 Annotation Two wheat genotypes forming high and low biomass, exhibiting differential expression of an isoflavone reductase-like (IRL) gene, and resulting in contrasting grain yield under heat stress field conditions were analyzed in detail for their responses under controlled heat and elevated CO2 conditions. Significant differences in IRL expression between the two lines were hypothesized to be the basis of their differential performance under the tested conditions and their stress tolerance potential. By a holistic approach integrating advanced cell physiological phenotyping of the antioxidative and phytohormone system in spikes and leaves with measurements of ecophysiological and agronomic traits, the genetic differences of the genotypes in IRL expression were assessed. In response to heat and elevated CO2, the two genotypes showed opposite regulation of IRL expression, which was associated with cytokinin concentration, total flavonoid contents, activity of superoxide dismutase, antioxidant capacity and photosynthetic rate in leaves, and cytokinin concentration and ascorbate peroxidase activity in spikes. Our study showed that IRL expression is associated with wheat yield performance under heat stress at anthesis, mediated by diverse physiological mechanisms. Hence, based on our results, the IRL gene is a promising candidate for developing genetic markers for breeding heat-tolerant wheat. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2022 Electronic address http://doi.org/10.1093/jxb/erab247
Number of the records: 1