Research – Study pinpoints how Salmonella sneaks into plant roots

PhysOrg

In recent years, contamination of salad vegetables by E. coli and salmonella bacteria—the most common causes of food poisoning—have led to large-scale recalls. Although most salmonella outbreaks are linked to contamination from post-harvest handling and transportation, this infectious bacterium can also enter the plant earlier, from contaminated soil.

But how exactly does it enter from the ? A new study from the Indian Institute of Science (IISc) and the University of Agricultural Sciences (UAS), Bengaluru, has found the answer. Unlike other disease-causing  that enter the root, fruit or leaf by producing enzymes to break down the plant’s cell wall, salmonella sneaks in through a tiny gap created when a lateral root branches out from the plant’s primary root, the study shows.

 

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