Acetosyringone

Acetosyringone

Acetosyringone is a phenolic natural compound with the chemical formula C₁₀H₁₂O₄. It is a derivative of acetyl and syringol. Acetosyringone plays a crucial role in plant biology, particularly in the interaction between plants and certain types of bacteria, such as Agrobacterium tumefaciens. This compound is significant in the field of genetic engineering and plant pathology, as it is involved in the mechanism by which Agrobacterium transfers genes to plant cells, a process central to the development of genetically modified organisms (GMOs).

Chemical Properties

Acetosyringone is characterized by its phenolic structure, which includes an acetyl group attached to a syringol skeleton. This compound is soluble in various organic solvents and has a melting point of 111-114 °C. Its molecular structure allows it to act as a signaling molecule, facilitating communication between certain bacteria and plant cells.

Biological Role

The primary biological significance of acetosyringone lies in its role as a signaling molecule in the interaction between Agrobacterium tumefaciens and plant cells. Agrobacterium tumefaciens is a bacterium known for its ability to transfer a segment of its DNA, known as the T-DNA, into the genome of a plant cell. This process is facilitated by the Ti plasmid found in Agrobacterium, which is activated in the presence of acetosyringone. When a plant is wounded, it releases acetosyringone, which is detected by Agrobacterium. This detection triggers the bacterium to initiate the transfer of T-DNA to the plant cell, leading to the formation of a gall or tumor, which is a characteristic symptom of crown gall disease.

Applications in Genetic Engineering

Due to its role in facilitating T-DNA transfer, acetosyringone is widely used in genetic engineering to enhance the efficiency of gene transfer from Agrobacterium to plants. This has made it an essential tool in the creation of genetically modified plants, where it is used to promote the integration of foreign genes into the plant genome. Its application is not limited to agricultural biotechnology but also extends to basic research in plant biology, where it aids in the study of gene function and expression.

Safety and Toxicology

Information on the safety and toxicology of acetosyringone is limited. However, as with all chemicals, it is advisable to handle it with care, following standard safety protocols to avoid potential risks associated with exposure.

Acetosyringone Resources
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