Related Experiment Video
Updated: Feb 12, 2026
03:47
Author Spotlight: Advancing Facial Rejuvenation Therapy with Post-Laser Salicylic Acid Application
Published on: September 27, 2024
1.6K
Exploring salicylic acid biosynthesis in Trichoderma spp. using an enhanced transformation approach.
Siebe Pierson1, Erwann Arc2, Thomas Roach2
1Department of Microbiology, Universität Innsbruck, Technikerstraße 25d, Innsbruck, Austria.
Fungal Biology and Biotechnology
|February 11, 2026
Summary
This study investigated salicylic acid (SA) in fungi, finding species-specific biosynthesis and growth responses. Fungal SA production differs from plant pathways, and Trichoderma spp. SA release is influenced by plant interactions.
Area of Science:
- Mycology
- Plant-Microbe Interactions
- Biochemistry
Background:
- Salicylic acid (SA) is a key plant hormone with unclear roles and biosynthesis in fungi.
- Investigating SA's role in Trichoderma spp. physiology and identifying its fungal biosynthesis genes is crucial.
- This study focused on Trichoderma virens and optimized transformation methods for Trichoderma atroviride.
Purpose of the Study:
- To explore the physiological impact of SA on Trichoderma species.
- To identify genes responsible for SA biosynthesis in Trichoderma virens.
- To optimize fungal transformation techniques for studying phytohormone biosynthesis.
Main Methods:
- Screened candidate fungal SA biosynthesis genes based on plant pathways.
- Generated T. virens gene deletion mutants using an optimized transformation approach.
- Measured SA biosynthesis and growth responses to exogenous SA and plant volatile organic compounds (VOCs).
Main Results:
- Observed significant strain- and species-dependent differences in SA biosynthesis and growth.
- SA biosynthesis in some Trichoderma species was induced by plant VOCs.
- Gene deletions in T. virens did not reduce SA biosynthesis, indicating distinct pathways from plants.
Conclusions:
- Failed to identify specific genes for SA biosynthesis in T. virens, suggesting non-canonical pathways.
- Characterized environmental effects of SA on Trichoderma and phytopathogens, and plant-host influence on SA release.
- Optimized phytohormone measurement in plate cultures and validated an enhanced transformation approach for T. virens.
Related Concept Videos
01:28Biosynthesis of Nucleic Acids
1.2K
Nucleic acid biosynthesis is a fundamental biochemical process that produces the purine and pyrimidine nucleotides essential for DNA and RNA synthesis. This pathway maintains a balanced nucleotide pool, preventing imbalances that could jeopardize genetic integrity and cellular function. Given the crucial role of nucleotides, their synthesis is tightly regulated to ensure proper cellular homeostasis.Purine BiosynthesisThe biosynthesis of purine nucleotides begins with ribose-5-phosphate, a...
1.2K
01:24Biosynthesis in Bacteria
752
Biosynthesis in bacteria is a fundamental anabolic process that generates essential macromolecules, including proteins, nucleic acids, lipids, and polysaccharides. These macromolecules are critical for cellular growth, replication, and function. The process is tightly regulated and energetically linked to catabolic pathways to ensure optimal resource utilization.Biosynthetic pathways begin with precursor metabolites such as pyruvate, acetyl-CoA, and glucose-6-phosphate derived from glycolysis,...
752
01:26Biosynthesis of Polysaccharides
722
Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...
722
01:29Biosynthesis of Lipids
669
Microbial membranes exhibit remarkable diversity in lipid composition, reflecting evolutionary adaptations to various environmental conditions. The three domains of life—Bacteria, Archaea, and Eukarya—synthesize membrane lipids through distinct biosynthetic pathways, leading to fundamental structural differences that impact membrane stability, function, and adaptability.Fatty Acid-Based Lipids in Bacteria and EukaryaBacteria and eukaryotes share a common fatty acid biosynthesis...
669
01:22Bioavailability Enhancement: Determination and Conceptual Approaches in Overcoming Bioavailability Problems
214
Body:Bioavailability is a critical pharmacological concept that measures the extent and rate at which an active drug ingredient or therapeutic moiety enters the systemic circulation, remaining unchanged. It's a pivotal factor in determining a drug's efficacy and safety.The Biopharmaceutics Classification System (BCS) plays an essential role in drug development by categorizing drugs into four classes based on their solubility and permeability. This classification aids in understanding drug...
214
01:33Bacterial Transformation
60.2K
In 1928, bacteriologist Frederick Griffith worked on a vaccine for pneumonia, which is caused by Streptococcus pneumoniae bacteria. Griffith studied two pneumonia strains in mice: one pathogenic and one non-pathogenic. Only the pathogenic strain killed host mice.
Griffith made an unexpected discovery when he killed the pathogenic strain and mixed its remains with the live, non-pathogenic strain. Not only did the mixture kill host mice, but it also contained living pathogenic bacteria that...
Griffith made an unexpected discovery when he killed the pathogenic strain and mixed its remains with the live, non-pathogenic strain. Not only did the mixture kill host mice, but it also contained living pathogenic bacteria that...
60.2K