ArticleThe plant genome2024
Effect of terminal heat stress on osmolyte accumulation and gene expression during grain filling in bread wheat (Triticum aestivum L.).
Article in The plant genome, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 35 citations in OpenAlex.
- OsPUP1 Modulates Cytokinin Distribution and Antioxidant Defense to Regulate Heat Stress Tolerance in Rice.Antioxidants (Basel, Switzerland) · 2026Article
- Integrated Assessment of Physiological, Molecular and Ultrastructural Responses to Heat Stress in Wheat.Plants (Basel, Switzerland) · 2026Article
- Crosstalk of heat shock proteins and antioxidants with peroxisome biogenesis supports wheat thermotolerance.Scientific reports · 2026Article
- Analysis of Expansin genes in Cucurbitaceae and identification of candidate genes for stress resistance.Scientific reports · 2025Article
- Understanding the genetic basis of heat stress tolerance in wheat (Triticum aestivum L.) through genome-wide association studies.The plant genome · 2025Article
- Developmental and Temperature-Driven Variations in Metabolic Profile and Antioxidant Capacity of Broccoli (Plants (Basel, Switzerland) · 2025Article
- ExploringPlants (Basel, Switzerland) · 2024Article
- Elevated Temperature Effects on Protein Turnover Dynamics inInternational journal of molecular sciences · 2024Article
- Genome-wide association study for seedling heat tolerance under two temperature conditions in bread wheat (Triticum aestivum L.).BMC plant biology · 2024Article
- Exploring the genomics of abiotic stress tolerance and crop resilience to climate change.The plant genome · 2024Article
- Effect of terminal heat stress on osmolyte accumulation and gene expression during grain filling in bread wheat (Triticum aestivum L.).The plant genome · 2024Article
- Impact of exogenous rhamnolipids on plant photosynthesis and biochemical parameters under prolonged heat stress.Photosynthetica · 2024Article
- Genome-Wide Identification of Candidate Genes Associated with Heat Stress in Mulberry (Current issues in molecular biology · 2023Article
- Investigating the impact of terminal heat stress on contrasting wheat cultivars: a comprehensive analysis of phenological, physiological, and biochemical traits.Frontiers in plant science · 2023Article
Corrections and comments
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Authors and funding
11 authors at 6 institutions in 3 countries.
Funding
Abstract
The grain-filling stage in Triticum aestivum (wheat) is highly vulnerable to increasing temperature as terminal heat stress diminishes grain quality and yield. To examine the mechanism of terminal heat tolerance, we performed the biochemical and gene expression analyses using two heat-tolerant (WH730 and WH1218) and two heat-sensitive (WH711 and WH157) wheat genotypes. We observed a significant increase in total soluble sugar (25%-47%), proline (7%-15%), and glycine betaine (GB) (22%-34%) contents in flag leaf, whereas a decrease in grain-filling duration, 1000-kernel weight (8%-25%), and grain yield per plant (11%-23%) was observed under the late-sown compared to the timely sown. The maximum content of osmolytes, including total soluble sugar, proline, and GB, was observed in heat-tolerant genotypes compared to heat-sensitive genotypes. The expression of 10 heat-responsive genes associated with heat shock proteins (sHsp-1, Hsp17, and HsfA4), flavonoid biosynthesis (F3'-1 and PAL), β-glucan synthesis (CslF6 and CslH), and xyloglucan metabolism (XTH1, XTH2, and XTH5) was studied in flag leaf exposed to different heat treatments (34, 36, 38, and 40°C) at 15 days after anthesis by quantitative real-time polymerase chain reaction. A significant increase in the relative fold expression of these genes with increasing temperature indicated their involvement in providing heat-stress tolerance. The high differential expression of most of the genes in heat-tolerant genotype "WH730" followed by "WH1218" indicates the high adaptability of these genotypes to heat stress compared to heat-sensitive wheat genotypes. Based on the previous results, "WH730" performed better in terms of maximum osmolyte accumulation, grain yield, and gene expression under heat stress.
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