Date of Publication: February 10, 2014
Link: http://news.discovery.com/earth/plants/deadliest-mushroom-in-the-world-is-spreading-140210.htm
Summary:
While
Amanita phalloides, or the death cap, may try to look as innocent and delicious
as the edible mushrooms it grows around, its contains a dark secret. The mushrooms contain enough toxicity have
the ability to inflict quite the amount of damage to the human body which lead
to the death of the consumer. Due to its
fast reproduction through the use of spores, the death cap has now become a
huge invasive species on every continent except Antarctica. In the United States, it has spread across
the East and the West Coasts and appears to have adapted to living on certain
plants such as oak trees and native pines.
The growth of the fungus currently seems to be converging inward and
travelling south towards Mexico.
Luckily,
an antidote has seemed to be discovered by a man named S. Todd Mitchell of Dominican Hospital of Santa
Cruz and his colleagues. Created from
milk thistle, the drug has saved over 60 patients who all had proper kidney
functions and took the drug within 96 hours of digesting the mushroom. After the drug is injected, it blocks the
receptors that signal for the toxins to go into the liver. The toxins then are forced to stay in the
bloodstream which allows the kidneys to expel the toxins faster. While there are virtually no side effects
from the drug, Mitchell still needs more patients before he can publish the
research.
Connection:
How
this connects to our biology class is the fact that Amanita phalloides is a
fungus and that it uses many of the ideas or processes that we talked about in
class. First off, we discussed how fungi
are never autotrophs and are usually the decomposers. The fact that this fungus has been found on
trees might lead to the conclusion that it is a decomposer or is in a parasitic
relationship with the different trees.
The next idea that was said during class was about how the fungi make tons of spores and
reproduce fast. Amanita phalloides spreads
quickly due to the fact that it makes so many spores which all have almost the
same potentials. Finally, a third idea that was
talked about during class was the idea that antibiotics have no effect against
these fungi and so other cures or treatments need to be found. In this case, Mitchell created this drug without side effects so far that
was able to treat the fungi and save patients.
Is there a way to prevent this invasive species from growing and spreading?
ReplyDeleteBased on my research of a couple sites, I came to the conclusion that it isn't possible to stop this species from spreading. I've only read about there being an antidote and no ways of actually stopping the spread since the spores are airborne and come in large numbers.
DeleteDoes this fungus species absorb important nutrients, etc. for its own benefit from the plants it lives on? In other words, is it a plant parasite?
ReplyDeleteThis comment has been removed by the author.
DeleteWell all fungi are heterotrophs and so it only makes sense that it obtains food from somewhere else since it cannot photosynthesize. Since it lives on oaks and other plants, I infer that it does take energy from the autotrophs. To answer your question directly, I do believe that they are plant parasites.
DeleteHow might the spread of this fungus affect other organisms than humans?
ReplyDelete