`Plant aspirin’ offers hope against crop diseases
The discovery by French scientists that cotton plants produce a kind of ‘plant aspirin’ in response to bacterial infection could lead to new ways of fighting crop diseases.
Researchers led by the French Institute of Research for Development (IRD) found that salicylic acid — which has a chemical structure very similar to that of aspirin — and jasmonate acid are both released by cotton plants in response to infection by the bacterium Xanthomonas.
The two plant hormones play a central role in kick-starting the plant’s defensive reactions against the bacterium, which causes bacterial blight — a disease that can reduce cotton yields.
The role of jasmonate acid has long been recognised in seed germination and plant aging. But it also appears to be released in response to injury, the new research showing that it is produced between 90 and 120 minutes after the cotton is infected.
The two hormones interact in a complex manner in defending the plant against diseases, in a way that varies between plant species the type of infection. In addition ethylene, which affects flowering and fruit production, works together with jasmonate acid which, in turn, can block the mechanisms activated by salicylic acid.
The researchers, whose results will be published in a forthcoming issue of the journal The Plant Journal, hope to find ways of stimulating the production of these hormones in plants, thus improving their resistance to parasites and reducing the need for pesticides.
For more details, contact Michel Nicole at: email@example.com
Alle Nachrichten aus der Kategorie: Life Sciences
Articles and reports from the Life Sciences area deal with applied and basic research into modern biology, chemistry and human medicine.
Valuable information can be found on a range of life sciences fields including bacteriology, biochemistry, bionics, bioinformatics, biophysics, biotechnology, genetics, geobotany, human biology, marine biology, microbiology, molecular biology, cellular biology, zoology, bioinorganic chemistry, microchemistry and environmental chemistry.
Geologists simulate soil conditions to help grow plants on Mars
Humankind’s next giant step may be onto Mars. But before those missions can begin, scientists need to make scores of breakthrough advances, including learning how to grow crops on the…
Theoreticians show which quantum systems are suitable for quantum simulations
A joint research group led by Prof. Jens Eisert of Freie Universität Berlin and Helmholtz-Zentrum Berlin (HZB) has shown a way to simulate the quantum physical properties of complex solid…