The fungus Acremonium alternatum enhances salt stress tolerance by regulating host redox homeostasis and phytohormone signaling
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View abstract on PubMed
Summary
This summary is machine-generated.Endophytic fungus Acremonium alternatum enhances salt tolerance in Brassica napus by boosting abscisic acid signaling and antioxidant systems. This interaction improves plant growth and photosynthesis under saline conditions.
Area Of Science
- Plant Science
- Microbiology
- Molecular Biology
Background
- Endophytic fungi can enhance plant resilience to abiotic stressors.
- Molecular mechanisms of fungal-mediated plant biofortification are poorly understood.
- Investigating early plant-fungus interactions is crucial for understanding stress tolerance.
Purpose Of The Study
- To elucidate the early molecular responses of Brassica napus to Acremonium alternatum.
- To determine the role of Acremonium alternatum in conferring salt tolerance to Brassica napus.
- To identify key molecular pathways involved in this plant-fungus interaction.
Main Methods
- Combined plant physiology, proteomic, metabolomic, and hormonal analyses.
- Investigated Brassica napus response to Acremonium alternatum under optimal and salt stress conditions.
- Utilized targeted hormonal analysis for abscisic acid and reactive oxygen species (ROS) assessment.
Main Results
- Acremonium alternatum inoculation led to subtle early responses under optimal conditions.
- Significant growth enhancement and salt tolerance were observed in inoculated plants under salt stress.
- Key molecular changes included modulated ribosomal proteins, enhanced photosynthesis, improved ROS metabolism, V-ATPase accumulation, and abscisic acid signaling.
Conclusions
- Acremonium alternatum confers salt tolerance in Brassica napus via abscisic acid signaling and antioxidant priming.
- The fungus enhances photosynthesis, modulates ion sequestration, and lowers reactive oxygen species levels.
- This study reveals novel insights into endophytic fungal-mediated abiotic stress adaptation in plants.
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