Click For Photo: https://scx2.b-cdn.net/gfx/news/2019/3-scientistsac.jpg
Grown as Christmas trees, Fraser firs are highly prized for their rich color and pleasant scent as well as their ability to hold their needles. Unfortunately, they are also highly susceptible to devastating root rot diseases caused by water molds in the genus Phytophthora.
Scientists in Connecticut were conducting experiments testing various methods to grow healthier Fraser trees when they accidentally discovered a new species of Phytophthora. They collected the diseased plants, isolated and grew the pathogen on artificial media, then inoculated it into healthy plants before re-isolating it to prove its pathogenicity.
Organism - Presence - Spore - Walls - Species
"Once the organism was isolated, the presence of unusually thick spore walls alerted us that this may not be a commonly encountered species," said Rich Cowles, a scientist at the Connecticut Agricultural Experiment Station involved with this study, "and so comparison of several genes' sequences with known Phytophthora species was used to discover how our unknown was related to other, previously described species." In fact, they...
Wake Up To Breaking News!