Abstract
In natural habitats, especially in arid areas, plants are often simultaneously exposed to multiple abiotic stresses, such as salt, osmotic and heat stresses. However, most analyses of gene expression in stress responses examine individual stresses. In this report, we compare gene expression in individual and combined stresses. We show that combined stress treatments with salt, mannitol and heat induce a unique pattern of gene expression that is not a simple merge of the individual stress responses. Under multiple stress conditions, expression of most heat and salt stress-responsive genes increased to levels similar to or higher than those measured in single stress conditions, but osmotic stress-responsive genes increased to lower levels. Genes up-regulated to higher levels under multiple stress condition than single stress conditions include genes for heat shock proteins, heat shock regulators and late embryogenesis abundant proteins (LEAs), which protect other proteins from damage caused by stresses, suggesting their importance in multiple stress condition. Based on this analysis, we identify candidate genes for engineering crop plants tolerant to multiple stresses.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Combined salt, mannitol and heat induced a distinct expression pattern.
- Taxon
- plantsViridiplantaee1
- Treatment
- salt, mannitol and heate0
- Outcome
- pattern of gene expressione0
Verbatim
e0“combined stress treatments with salt, mannitol and heat induce a unique pattern of gene expression that is not a simple merge of the individual stress responses.”
t0“plant responses”
e1“plants are often simultaneously exposed to multiple abiotic stresses”
Claim · model-written summary
Most heat and salt response genes reached similar or higher expression under multiple stress.
- Taxon
- plantsViridiplantaee1
- Outcome
- expression of most heat and salt stress-responsive genese0
- Direction
- increasede0
- Comparator
- single stress conditionse0
Verbatim
e0“expression of most heat and salt stress-responsive genes increased to levels similar to or higher than those measured in single stress conditions”
t0“plant responses”
e1“plants are often simultaneously exposed to multiple abiotic stresses”
Claim · model-written summary
Osmotic response genes rose to lower levels under multiple stress.
- Taxon
- plantsViridiplantaee1
- Outcome
- osmotic stress-responsive genese0
- Direction
- lowere0
Verbatim
e0“osmotic stress-responsive genes increased to lower levels”
t0“plant responses”
e1“plants are often simultaneously exposed to multiple abiotic stresses”
Claim · model-written summary
Genes for heat shock proteins, regulators and LEAs were more upregulated under multiple stress.
- Taxon
- plantsViridiplantaee1
- Outcome
- Genes up-regulatede0
- Direction
- highere0
- Comparator
- single stress conditionse0
Verbatim
e0“Genes up-regulated to higher levels under multiple stress condition than single stress conditions include genes for heat shock proteins, heat shock regulators and late embryogenesis abundant proteins (LEAs)”
t0“plant responses”
e1“plants are often simultaneously exposed to multiple abiotic stresses”
Claim · model-written summary
Analysis identified candidates for engineering multi-stress tolerance.
Not reportedComparatorValue
Verbatim
e0“Based on this analysis, we identify candidate genes for engineering crop plants tolerant to multiple stresses.”