The newly discovered disease, Sudden Oak Death (SOD), is quickly gaining a reputation, and its not a good one. SOD is tenacious and lethal, using as many as 26 different plants as hosts and spreading in ways scientists dont completely understand. Now, recent research suggests that SOD is capable of using an even greater number of host plants than previously thought. While this is not necessarily good news, it does help shed light on why SOD has been so quick to spread.
"SOD is deadly for oaks and its impacting many other species as well," states Matteo Garbelotto, an extension forest pathologist and adjunct professor at the University of California, Berkeley, and a leading researcher on SOD. Not long after the isolation of the microbe causing SOD by U. C. Davis Professor Dave Rizzo in 2000, plant pathologists began to suspect that while oaks were the direct victims of the disease, other plants were involved in spreading it. Plants from the rhododendron family were among the first host plants identified. "What we hypothesized and what were now confirming," says Garbelotto, "is that SOD is not spreading via the oaks, but is instead using a huge range of native plants for reproduction."
In fact, research by Garbelotto and Rizzo indicates that nearly all of the main tree species in Californias forests, as well as forest shrubbery and undergrowth, may act as hosts for SOD. SOD appears to use the leaves, branches and stems of these plants to reproduce, resulting in lesions and leaf discoloration. It doesnt kill the host plant outright, but scientists say repeated SOD infections are likely to weaken the plant over time, negatively impacting its growth and making it susceptible to other diseases and insects.
Cindy Ash | EurekAlert!
Back to Nature: Palm oil plantations are being turned back into protected rainforest
21.03.2019 | Forschungsverbund Berlin e.V.
The inner struggle of the evening primrose: Chloroplasts are caught up in an evolutionary arms race
14.03.2019 | Max-Planck-Institut für Molekulare Pflanzenphysiologie
A stellar flare 10 times more powerful than anything seen on our sun has burst from an ultracool star almost the same size as Jupiter
A localization phenomenon boosts the accuracy of solving quantum many-body problems with quantum computers which are otherwise challenging for conventional computers. This brings such digital quantum simulation within reach on quantum devices available today.
Quantum computers promise to solve certain computational problems exponentially faster than any classical machine. “A particularly promising application is the...
The technology could revolutionize how information travels through data centers and artificial intelligence networks
Engineers at the University of California, Berkeley have built a new photonic switch that can control the direction of light passing through optical fibers...
Physicists observe how electron-hole pairs drift apart at ultrafast speed, but still remain strongly bound.
Modern electronics relies on ultrafast charge motion on ever shorter length scales. Physicists from Regensburg and Gothenburg have now succeeded in resolving a...
Engineers create novel optical devices, including a moth eye-inspired omnidirectional microwave antenna
A team of engineers at Tufts University has developed a series of 3D printed metamaterials with unique microwave or optical properties that go beyond what is...
17.04.2019 | Event News
15.04.2019 | Event News
09.04.2019 | Event News
18.04.2019 | Life Sciences
18.04.2019 | Physics and Astronomy
18.04.2019 | Life Sciences