Researchers continue to track the evolution of different strains of the plant pathogen that caused the Irish potato famine in the 1840s, which set down roots in the United States before attacking Europe
Researchers discover that the fungus Fusarium verticillioides uses volatile compounds to manipulate insects and plants, promoting its own dissemination.
Researchers have re-animated specimens of a fungus that causes coffee wilt to discover how the disease evolved and how its spread can be prevented.
Plant diseases don’t stop at national borders and miles of oceans don’t prevent their spread, either. That’s why plant disease surveillance, improved detection systems, and global predictive disease modeling are necessary to mitigate future disease outbreaks and protect the global food supply, according to a team of researchers.
The detrimental impact of pesticides on non-target organisms is one of the most urgent concerns in current agriculture. Double-stranded RNAs (dsRNAs) represent the most species-specific class of pesticides to date, potentially allowing control of a target pest without effecting other species.
A recent work describes a new rapid ‘leaf-disk assay’ that uses chlorophyll fluorescence emissions to determine whether a weed is resistant to various systemic and contact herbicides.
Commentary on Gobert et al. The authors prove the feasibility of an idea through this proof-of-concept work. As they point out, plant antiviral treatments are usually virus-specific, unfortunately for the moment a ‘broad-spectrum’ plant antiviral does not exist.
An international research studied the molecular mechanisms of the plant immune system. They were able to show a connection between a relatively unknown gene and resistance to pathogens.
Plants produce toxic substances to defend themselves against herbivores. In a new study, scientists were able to describe in detail the biosynthesis and exact mode of action of an important group of defensive substances, the diterpene glycosides, in wild tobacco plants. Diterpene glycosides allow plants to fend off herbivores. The study shows that these plant chemicals attack certain parts of the cell membrane.
People have puzzled for years why pathogen Phytophthora infestens causes the devastating late blight disease, source of the Irish Potato famine, on potatoes, but has no effect at all on plants like apple or cucumber. How are apple trees and cucumber plants able to completely shake off this devastating pathogen?
