ArticleJournal of experimental botany2010
Physiological and molecular changes in Oryza meridionalis Ng., a heat-tolerant species of wild rice.
Article in Journal of experimental botany, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 1 of them a synthesis that pooled it.
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Who cites it
55 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Genome-wide transcriptional analysis of rapeseed (Brassica napus L.) responses to heat stress: an integrated RNA-Seq meta-analysis, gene co-expression, and gene regulatory network study.BMC plant biology · 2025Pooled it
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- New crops on the block: effective strategies to broaden our food, fibre, and fuel repertoire in the face of increasingly volatile agricultural systems.Journal of experimental botany · 2025Review
- Integrative physiological, biochemical, and proteomic analysis of the leaves of two cotton genotypes under heat stress.PloS one · 2025Article
- Tandemly duplicated Rubisco activase genes of cereals show differential evolution and response to heat stress.Plant molecular biology · 2024Article
- Regulatory network of rice in response to heat stress and its potential application in breeding strategy.Molecular breeding : new strategies in plant improvement · 2023Review
- Flavonoids and Phenolic Acids Content in Cultivation and Wild Collection of European Cranberry BushMolecules (Basel, Switzerland) · 2023Article
- Enhancement of Heat and Drought Stress Tolerance in Rice by Genetic Manipulation: A Systematic Review.Rice (New York, N.Y.) · 2022Review
- Heat and Cold-Stressed Individuals ofPlants (Basel, Switzerland) · 2022Article
- Photosynthetic traits of Australian wild rice (Oryza australiensis) confer tolerance to extreme daytime temperatures.Plant molecular biology · 2022Article
- Article
- Potential of Genome Editing to Capture Diversity From Australian Wild Rice Relatives.Frontiers in genome editing · 2022Review
- High light and temperature reduce photosynthetic efficiency through different mechanisms in the CCommunications biology · 2021Article
- Comparative transcriptome analyses revealed different heat stress responses in pigeonpea (Cajanus cajan) and its crop wild relatives.Plant cell reports · 2021Article
- High temperature-mediated disturbance of carbohydrate metabolism and gene expressional regulation in rice: a review.Plant signaling & behavior · 2021Review
- Morpho-Physiological Traits and Functional Markers Based Molecular Dissection of Heat-Tolerance in Urdbean.Frontiers in plant science · 2021Article
- Heat Shock Tolerance inFrontiers in plant science · 2021Article
- Response of Mycorrhizal 'Touriga Nacional' Variety Grapevines to High Temperatures Measured by Calorespirometry and Near-Infrared Spectroscopy.Plants (Basel, Switzerland) · 2020Article
- Ecometabolomics for a Better Understanding of Plant Responses and Acclimation to Abiotic Factors Linked to Global Change.Metabolites · 2020Review
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Oryza meridionalis Ng. is a wild relative of Oryza sativa L. found throughout northern Australia where temperatures regularly exceed 35 degrees C in the monsoon growing season. Heat tolerance in O. meridionalis was established by comparing leaf elongation and photosynthetic rates at 45 degrees C with plants maintained at 27 degrees C. By comparison with O. sativa ssp. japonica cv. Amaroo, O. meridionalis was heat tolerant. Elongation rates of the third leaf of O. meridionalis declined by 47% over 24 h at 45 degrees C compared with a 91% decrease for O. sativa. Net photosynthesis was significantly higher in O. sativa at 27 degrees C whereas the two species had the same assimilation rates at 45 degrees C. The leaf proteome and expression levels of individual heat-responsive genes provided insight into the heat response of O. meridionalis. After 24 h of heat exposure, many enzymes involved in the Calvin Cycle were more abundant, while mRNA of their genes generally decreased. Ferredoxin-NADP(H) oxidoreductase, a key enzyme in photosynthetic electron transport had both reduced abundance and gene expression, suggesting light reactions were highly susceptible to heat stress. Rubisco activase was strongly up-regulated after 24 h of heat, with the large isoform having the largest relative increase in protein abundance and a significant increase in gene expression. The protective proteins Cpn60, Hsp90, and Hsp70 all increased in both protein abundance and gene expression. A thiamine biosynthesis protein (THI1), previously shown to act protectively against stress, increased in abundance during heat, even as thiamine levels fell in O. meridionalis.
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