ArticleInternational journal of molecular sciences2022
Comparative Analysis of Physiological, Hormonal and Transcriptomic Responses Reveal Mechanisms of Saline-Alkali Tolerance in Autotetraploid Rice (
Article in International journal of molecular sciences, 2022. 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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14 citing papers in PubMed, 34 citations in OpenAlex.
- Comparative physiological, hormonal, and transcriptional analyses reveal the difference between diploid and autotetraploid rice under cadmium stress.Plant cell reports · 2026Article
- Effect of apple fermentation liquid on rice growth and stress responses in saline-alkali soil under pot conditions.Frontiers in plant science · 2026Article
- Transcriptome analysis reveals the mechanism of mixed oligosaccharides in the response of rice seedlings to abiotic stresses.Frontiers in plant science · 2025Article
- Microencapsulated Microbial Seed Coating Could Improve Soil Environment and Maize Grain Yield in Saline Soil.Plants (Basel, Switzerland) · 2024Article
- Understanding of Plant Salt Tolerance Mechanisms and Application to Molecular Breeding.International journal of molecular sciences · 2024Review
- Detection of Quantitative Trait Loci Associated with Alkaline Tolerance Using Recombinant Inbred Line Population Derived from Longdao5 × Zhongyouzao8 at Seedling Stage.Life (Basel, Switzerland) · 2024Article
- Autotetraploidy of rice does not potentiate the tolerance to drought stress in the seedling stage.Rice (New York, N.Y.) · 2024Article
- How Rice Plants Response to Abiotic Stresses.International journal of molecular sciences · 2023Article
- Integrated Transcriptomic and Metabolomic Analyses Uncover the Differential Mechanism in Saline-Alkaline Tolerance betweenInternational journal of molecular sciences · 2023Article
- Article
- Components of the Phenylpropanoid Pathway in the Implementation of the Protective Effect of Sodium Nitroprusside on Wheat under Salinity.Plants (Basel, Switzerland) · 2023Article
- Article
- Genome-Wide Investigation and Functional Analysis Reveal ThatFoods (Basel, Switzerland) · 2023Article
- Integrated Transcriptome and Metabolome Analysis of Rice Leaves Response to High Saline-Alkali Stress.International journal of molecular sciences · 2023Article
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8 authors at 1 institution in 1 country.
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Abstract
Saline-alkali soil has posed challenges to the growth of agricultural crops, while polyploidy often show greater adaptability in diverse and extreme environments including saline-alkali stress, but its defense mechanisms in rice remain elusive. Herein, we explored the mechanisms of enhanced saline-alkali tolerance of autotetraploid rice 93-11T relative to diploid rice 93-11D, based on physiological, hormonal and transcriptomic profilings. Physiologically, the enhanced saline-alkali tolerance in 93-11T was manifested in higher soluble sugar accumulation and stronger superoxide dismutase (SOD) and peroxidase (POD) activities in leaves during 24 h after saline-alkali shock. Furthermore, various hormone levels in leaves of 93-11T altered greatly, such as the negative correlation between salicylic acid (SA) and the other four hormones changed to positive correlation due to polyploidy. Global transcriptome profiling revealed that the upregulated differentially expressed genes (DEGs) in leaves and roots of 93-11T were more abundant than that in 93-11D, and there were more DEGs in roots than in leaves under saline-alkali stress. Genes related to phytohormone signal transduction of auxin (AUX) and SA in roots, lignin biosynthesis in leaves or roots, and wax biosynthesis in leaves were obviously upregulated in 93-11T compared with 93-11D under saline-alkali condition. Collectively, 93-11T subjected to saline-alkali stress possibly possesses higher osmotic regulation ability due to cuticular wax synthesis, stronger negative regulation of reactive oxygen species (ROS) production by increasing the SA levels and maintaining relative lower levels of IAA, and higher antioxidant capacity by increasing activities of SOD and POD, as well as lignin biosynthesis. Our research provides new insights for exploring the mechanisms of saline-alkali tolerance in polyploid rice and discovering new gene targets for rice genetic improvement.
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