Synopsis: Plants: Fungus:


Nature 04101.txt

But the long stalemate between growers and the fungus behind the devastating disease has broken with the fungus taking the advantage.

Caused by the fungus Hemileia vastatrix, coffee rust generally does not kill plants, but the Institute of Coffee of Costa rica estimates that the latest outbreak may halve the 2013-14 harvest in the worst affected areas of the nation.

and Mexico since the rust arrived in the region more than 40 years ago, says John Vandermeer, an ecologist at the University of Michigan in Ann arbor,

On 22 Â January, Costa rica enacted emergency legislation to speed up the flow of government money towards fighting the fungus.

The fungus first emerged as a significant problem by 1869 in Ceylon now Sri lanka before spreading around the world.

Stuart Mccook, a historian at the University of Guelph in Canada who studies the rust,

says that the wet weather in some areas of Ceylon was ideal for the spread of the fungus,

By 1970, the fungus had been detected in Brazil, and severe outbreaks were seen in Costa rica in 1989

"Coffee rust was considered a solved problem by most of the coffee growers and coffee institutes of the region,

says that rust has been causing ever-greater problems, although in Kenya, varieties resistant to the rust have held it at bay.

Colombia could be the closest to a solution. Marco Aurelio Cristancho, a researcher at Cenicafã, the National Centre for the Investigation of Coffee in Chinchin ¡

The government has supported also work on the genetics of both the fungus and the plant. Research programmes have started in other countries, too.


Nature 04268.txt

Fungi and roots store a surprisingly large share of the world's carbonthe largest fraction of carbon held in the soils of northern forests may derive from the living

and the decomposing roots of trees and shrubs and the fungi that live on them. By some estimates, the planet's soils contain more than twice the carbon in the atmosphere.

The difference in carbon-sequestration rates, the researchers report in Science1, can be explained entirely by carbon derived from the roots of trees and shrubs and their symbiotic fungi.

These organisms, dubbed ectomycorrhizal fungi, colonize roots and gain nourishment from the plants while helping their hosts to absorb water and nutrients from the soil.

Whereas about 47%of the soil carbon on the large islands came from roots and ectomycorrhizal fungi

It is unclear why the small islands built up a larger fraction of root-and fungi-derived carbon in the past century,

Symbiotic fungi are a dominant component of a soil s microbial community, she notes in an article accompanying the team s research2."

while that trees divert carbon to their ectomycorrhizal fungi, but having 70%of soil carbon derive from them is much more than we could have expected,

as well as their roots and fungi, causing an ovrall increase in carbon sequestration


Nature 04297.txt

Will we kill off today's animals if we revive extinct ones? An article by Scientific American.


Nature 04377.txt

they could play a part by making bees more susceptible to the parasitic mite Varroa destructor and the parasitic fungus Nosema apis,


Nature 04474.txt

Phytophthora infestans, which causes potato late blight, is an oomycete a type of single-celled organism related to brown algae.


Nature 04741.txt

a devastating disease caused by the fungus Venturia inaequalis. In 1999, they finally produced a tasty variety that contained the Vf defence gene,


Nature 04876.txt

Among the biggest threats are fungi and oomycetes, similar but distinct groups of microbes, which cause plant diseases.

Several highly virulent strains of fungi have emerged in recent years around the world, and the oomycete Phytophthora infestans remains a persistent problem even 168 years after causing the great Irish potato famine4.

Global movement of crop pests had never been analysed comprehensively. To fill this gap Bebber and his colleagues made use of historical records held by CABI (formerly known as the Centre for Agricultural Bioscience International),

the rate of shift varied significantly for different groups and among individual species. Fungi, beetles, true bugs, mites,

She highlights the worrying finding that fungi and oomycetes are moving particularly quickly, at 7 and 6 km per year respectively.


Nature 04984.txt

and their symbiotic fungus Leptographium procerum is key to their personality change in China (J.  Sun et  al.

) Since its arrival,"the fungus has mutated into novel genotypes, says Sun. One of these induces trees to release large amounts of the compound 3-carene a strong attractant to the beetles that is not released in response to the north American fungal variant.


Nature 05075.txt

Fungus discovery offers pine-wilt hopethe pine-wood nematode is a major pest in the forests of China.

Sun Jianghua and his colleagues at the Chinese Academy of Sciences Institute of Zoology in Beijing have identified a fungus that has a crucial role in the worm s life cycle,

In an eight-year survey, at six sites in southern China, Sun and his colleagues found that tree infestation was higher in the presence of a previously unknown species of tree fungus,

"Although we knew that pine-wood nematodes feed on not only the vascular tissue of pines but also tree fungi,

little is known about what the fungi do to either partner in this symbiotic relationship, says Sun. Â To examine the fungi s role in the relationship, the team fed nematodes and beetles with different types of fungus in a Petri dish.

The nematodes feeding on Sporothrix sp. 1 mated more, had more offspring and developed faster than those feeding on other species of fungi."

"The fungus also allowed the beetles to survive better and grow faster, says Sun. The researchers found that Sporothrix sp. 1 also increased the trees'production of diacetone alcohol,

which increases growth and reproduction in the beetles and nematodes. The key now, says Mota,


Nature 05115.txt

Fungus threatens top bananaa variant of a fungus that rots and kills the main variety of export banana has been found in plantations in Mozambique and Jordan,

The disease is caused by strains of a soil fungus called Fusarium oxysporum f. sp. cubense (Foc.

if the fungus reaches Latin america, the world s leading banana exporter, says Rony  Swennen of the Catholic University of Leuven in Belgium,

Nobody is sure how the fungus arrived in Jordan or Mozambique. Migrant workers from Asia might inadvertently have brought contaminated soil with them.

but the fungus poses less of a threat to the bulk of the bananas that provide a staple for some 400 Â million people worldwide.


Nature 05122.txt

The company plans to sell a mixture of fungi for coating rice and maize (corn) seeds,

such as a symbiotic fungus. Conventional breeding has helped to create varieties with increased tolerance to drought

Only in the 1970s did researchers realize that a fungus living in symbiosis with tall fescue grass was responsible for making cattle grazing on infected pastures ill.

he found that all of them carried a symbiotic fungus. Although neither the plants nor the fungi could tolerate soil temperatures of 40 °C by themselves,

together they could (R.  S.  Redman et  al. Science 298,1581; 2002). ) Rodriguez and his colleagues later discovered that the fungi were easily transferable:

they could grow in anything from watermelons to maize and confer heat-and drought-tolerance on those crops."

) The result is a commercial mix of about half a dozen fungi that the team named Bioensure.

and disease, including pathogens such as wheat rust, an area that Rodriguez says he is pursuing. But


Nature 05178.txt

A study in the humid rainforests of Belize shows that plant-killing fungi can help preserve diversity in such ecosystems.

and have begun identifying key fungi in the Belize test plots. Lewis notes that the work could be important for understanding how forests might react to climate change

because fungi are very sensitive to changes in humidity. Scott Mangan an ecologist at Washington University in St louis, Missouri, adds that the Belize study could inform forest-restoration efforts by highlighting the importance of fungi in the soil."

"Before we go into the region that we want to restore, we want to keep in mind that it s not just the trees that are in that area,


Nature 05184.txt

mountain pine beetles and blister rust fungus once thwarted by the cold, dry climate have devastated the trees,


Nature 05200.txt

And in older forests, fewer large trees dominate growth trends until they are brought eventually down by a combination of fungi, fires, wind and gravity;


Nature 05336.txt

But unlike most ethanol factories, in which yeast feeds on sugars in foodstuffs such as maize (corn) kernels,

A cocktail of enzymes must then be applied to chop up the tough biological polymers inside all before the yeast is added to the resulting sugars.


popsci_2013 00313.txt

Using a technique called bee vectoring researchers force bees to walk through a pesticide before they can exit their hives coating them in a fungus bacterium

For example honeybees or bumblebees can be used to carry natural pest killers like the fungus Beauveria bassiana


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The new plants are designed to combat wheat stem rust a fungus that used to take out a fifth of the U s.'wheat crop at once during epidemics through the 1950s.

The rust no longer appears in the U s.)Norman Borlaug the so-called father of the Green revolution

The rust has evolved. And as well as the new Kenyan wheats work now stem rust will evolve again.

In 1999 scientists first confirmed there was a new type of wheat stem rust that infected Borlaug's resistant wheats.

They called the new rust Ug99 after its confirmation year and country Uganda. Since then the rust which moves through the air has spread to Africa and the Middle east.

It affects 37 percent of all the wheat grown in the world the International atomic energy agency estimates.

which point they'll have to create a whole new wheat variety to combat that rust.

International atomic energy agency nuclear radiated biological mutant seed enhancement amplified evolutionary adapation production against wheat rust desease for Kenyan farmers.


popsci_2013 00632.txt

The western red colobus has great bushy mutton-chops and a calico-patterned coat of bright rust white and black.


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So why is sex nearly universal across animals plants and fungi? Shouldn't natural selection favor animals that forgo draining displays

Bdelloids have foreign DNA from bacteria and fungi in their chromosomes which is a great way to maintain genetic diversity.


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while the backyard trash pile behind a Flordia trailerpark is reabsorbed almost yearly (though decomp rust and racoon).(


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Why do doctors refuse to believe there is a thing called microorganisms and parasites (germs worms fungus bacteria yeast insects etc.


popsci_2013 01048.txt

Not only are they tolerant of pesticides/herbicides they also produce pesticides themselves through the use of fungus


popsci_2013 01054.txt

The term soil is used usually to describe a more organic compound that's broken down plants and animals and fungi.


popsci_2013 01299.txt

How about fungi do need mushrooms sunlight to grow? could we feed on them on a nuclear winter?


popsci_2013 01486.txt

#Juniper Mold Threatens World Supplies Of Gina funguslike pathogen first discovered just five years ago now is wreaking havoc on juniper trees in the U k. This is the first time that this mold called Phytophthora

but only first discovered it in Argentina in 2007 The Phytophthora austrocedrae in South america are genetically different from those in the U k. so the U k. outbreak probably didn't come from The americas Forestry Commission scientist Sarah Green told ABC.

Other Phytophthora species are able to infect almost all of the fruit and nut trees people plant around the world.

The minerals in this solution (iron and other trace elements) have natural disinfectant properties that kill bacteria and fungi.

Not only will this kill the fungi and the bacteria in the soil it also conditions the soil by neutralizing the soil ph or soil acidity.

as a result of habitat loss not as a result of phytophthora austrocedrae as the article implies. Only one site in southern England has been identified for the pathogen with the majority of sites in the North of England and Scotland


popsci_2013 01723.txt

Glucose Amylaseglucose Amylase is an industrial enzyme derived from a yeast or fungi. Glucose Amylase further catalyzes the breakdown of malto-oligosaccharides to glucose.


popsci_2013 01729.txt

Then resistance to a fungus called blast. Mineral content is a farther frontier; Pinson guesses people won't see high-calcium or high-iron rice in supermarkets for another 20 or 30 years.


popsci_2013 01776.txt

and fungi as well as animals and you can sort the list by location type or habitat in case you were particularly curious about creatures that live in the air above Oceania.


popsci_2013 01856.txt

#Scientists Reveal The Cause Of The irish Potato Famineit's widely acknowledged that Phytophthora infestans a sort of funguslike pathogen also known as potato blight was responsible for the mid-19th-century potato famine that reduced Ireland's population through death and emigration by nearly 25 percent.

In the mid-19th century travel between the New and Old world increased bringing over new strains of Phytophthora infestans.

and found that there was still trace amounts of DNA from the Phytophthora infestans. Previously it was assumed that a strain known as US-1 was responsible for The irish Potato Famine


popsci_2013 02728.txt

So the brewer tests the density of the beer before adding yeast then tests it again after fermentation is finished.

By calculating how much sugar was metabolized by the yeast one can roughly calculate the alcohol by volume.

White Labs for those who aren't into brewing is an independent company who sells yeast strains and a variety of analytical services to wine and beer makers.

but before we pitch the yeast we add another two gallons of water to the fermenting bucket to bring the beer up to the final five-gallon volume.


popsci_2013 02969.txt

By the way there are trillions of different critters bugs bacteria virus yeast and molds in the environment and yes birds bugs and animals dodo on our food too.


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Tomorrow it could be altered genetically tree fungus. I wonder what exactly were they looking for in the meet to need DNA tests for...


popsci_2013 03222.txt

Brewers know that you'll get different flavors from different yeast strains (even if the recipe is otherwise identical) for example.


Popsci_2014 00101.txt

Two fungi species that hail from the Eurasian steppes to which tumbleweed is native. He and his colleagues have submitted applications to release these exotic fungi on willing U s. farmers'lands.

Now they're just waiting for an answer. I'm very optimistic on its ability to control tumbleweed.

At the time plant pathologists in Hungary noticed a fungus infecting and killing local tumbleweeds.

Since then Berner and his colleagues has been studying that fungus Colletotrichum salsolae alongside another fungus called Uromyces salsolae.

what the fungi kill and don't kill. The latest studies included field tests of C. salsolae in Greece and Russia where C. salsolae already grows.

The fungi work against the tumbleweeds when they are saplings so they don't have the chance to grow into large bushes

if released the fungi wouldn't kill native plants. Those tests were performed in a biosafety level 3 greenhouse a precaution that was meant to protect not the human researchers who aren't susceptible to the diseases studied in the greenhouse but all of the plants outside of it.

Should the approval go through spreading the fungi will be cheap and easy. Scientists infect otherwise sterilized rice with the fungi then dump a half-kilogram pile of the rice every 5000 meters in the fields of those who want it.

Rain and tumbleweeds'tumbling will do the rest. It will eventually spread Berner says. Ultimately it's going to spread as far as tumbleweed spread u


Popsci_2014 00172.txt

Add Fungus The global population continues to grow and climate change is already tangibly reducing food harvests.

One answer to that question may be add fungus. Issie Lapowsky reports today for WIRED that a Seattle-based startup named Adaptive Symbiotic Technologies is almost ready to put a fungi-based product on the market that enables rice corn

and other crops to bear up amazingly well during drought and temperature extremes. According to Lapowsky the product called Bioensure is a blend of microscopic fungi that Dr. Rusty Rodriguez and his wife Dr. Regina Redman first discovered in the 1990s.

They had been trying to figure out how some plants were able to grow in the barren soil and peak 150 Degree-fahrenheit temperatures at the center of Yellowstone national park.

They discovered that fungi had colonized the plants and essentially lent them extra resilience. When the fungi were removed in the lab the plants failed under the same heat.

Since 2008 Redman has been tweaking fungi blends to work with wheat soybeans rice and corn crops.

Bioensure has been proven in real-world conditions Lapowsky writes: During the drought that destroyed much of the cropland in the Midwest in 2012 for instance Bioensure-treated corn crops generated 85 percent more yield than plants that were treated not.


Popsci_2014 00349.txt

and does not come from an animal into living baker's yeast cells temporarily turning the yeast into a so-called protein factory that produces milk protein.

The biohackers then extract that protein from the yeast and combine it with water vegetable butter and vegan sugar (instead of lactose) to make a milk substitute.

since yeast are renewable and the processes to cheese are nearly limitless and could also curb dairy farming's impacts on the environment such as emissions of methane a greenhouse gas from cow farts and decomposing manure.

Could the yeast hacks and subsequent processing that Real Vegan Cheese proposes really work? Responding to our questions via blog post Dr. Ricky the pseudonymous writer behind Science Based Cuisine stated that the campaign makes some scientifically dubious promises

and vegan and whether you call yeast animals or plants. But synthetic biologist and writer Christina Agapakis a postdoctoral research fellow at University of California Los angeles thinks Real Vegan Cheese could work.

It can sometimes be tricky to express proteins at high yield in yeast she wrote in email


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and yeasts are also critical to the production of some foods including many wines and cheeses.

Refined sugarwinecertain wine yeasts have been modified to make wine production easier and prevent the production of harmful fermentation byproducts.

One example is yeast strain ML01 in the U s . which prevents the production of histamines that can trigger headaches.


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Earlier he'd been photographing a brightly-colored fungus beetle for project called Meet Your Neighbors that's dedicated to reconnecting people with the wildlife on their own doorsteps


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which may include the controlled introduction of biological predators like a fungus that's known to attack the beetle.


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just as yeast-generated carbon dioxide does. The result is something known as salt-rising bread. A century ago a scientist went so far as to bake bread leavened with Clostridium perfringens drawn from an infected wound in

but seem to lie in the nineteenth-century American frontier where it was likely difficult to obtain fresh yeast or keep a bread starter cool and regularly fed.

This step kills all of our familiar friendly yeasts and lactic acid bacteria and in fact most microbes of any kind.


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At fault was a fungus that continues its march around the planet. In recent years it has spread across Asia and Australia devastating plants there that bear the signature yellow supermarket fruit.

Scientists at the conference assumed that the fungus was limited to a single plot. The new report suggested the entire plantation was infested expanding 125 diseased acres to more than 3500.

I described a fungus commonly known as Panama Disease but scientifically termed Fusarium oxysporum f. sp. cubensis Tropical Race 4 (or Foc-TR4).

Researchers are now analyzing the strain of fungus found in Mozambique to see if it shares genetic markers with samples gathered elsewhere.

Whatever the origin it is certain that the new plantation was equipped poorly to handle the fungus.


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reserve warm. 5) Next make the flash pickled shiitake mushrooms. Sautã Â the mushrooms in a shallow pan with vegetable oil and season to taste.

and strawberry followed by the pickled shiitake and carrot mixture. Pour a small amount of the pineapple broth into the dish and finish with the scallion mint chive and 1 pinch lime zest.


Popsci_2014 01427.txt

DON'T KILL THE FUR FUNGI!!!New research you see has found that chemicals excreted by microbes in sloth fur had potent activity against a host of human pathogens

The study found that chemicals isolated from fungi in three-toed sloths were deadly for parasites that cause malaria and Chagas disease (Plasmodium falciparum and Trypanosoma cruzi respectively.

It also comes as no shock that fungi create chemicals of interest to drug developers as fungi have spawned drugs from penicillin to Lovastatin.

The researchers were surprised however by the scope of the fur-fungi's antimicrobial properities. Very few chemicals have been found to have activity against Chagas disease for example

Several of the chemicals isolated from the fungi also showed strong activity against human breast cancer cells. a


ScienceDaily_2013 00417.txt

The scientists surveyed the abundance of lichens mosses ferns grasses sedges rushes forbs shrubs and trees along the two rockslides.

and Livesixty percent of the pikas'diet by dry weight came from moss at both sites with the rest from grasses lichens ferns forbs shrubs and some fir needles.


ScienceDaily_2013 00596.txt

This monitoring reveals a reduction in lichens throughout Finland including in unfelled forests. In Northern Finland reindeer grazing is the key factor in lichen reduction.

Slow-growing lichens in Southern Finland can also suffer due to the rapid growth of and shading by plants benefiting from nitrogen deposition.

Story Source: The above story is provided based on materials by Finnish Environment Institute (SYKE. Note: Materials may be edited for content and length.


ScienceDaily_2013 00888.txt

and vitamins B and C. Apart from fungi and insects the parasitic nematode Radopholus similis is considered a major banana pest.


ScienceDaily_2013 00901.txt

and a little-known fungus is hurting Highbush cranberries. Both research articles were subject to the same peer review process

He sent pictures of the disease to an expert who identified the culprit as a rare kind of rust fungus about

The fungus was known to infect Highbush cranberry but nobody knew what effect it had on the plant.

the fungus may attack Highbush cranberry the most after wet spring weather. Wet springs are predicted to become more common in Daust's region of B c

This year there is tons of rust on the plants and there are hardly any berries Daust explained.


ScienceDaily_2013 00928.txt

This is because many fungicides do not specifically combat fungi but prevent general processes in cells such as energy production


ScienceDaily_2013 01270.txt

They excluded damaged fruits to make sure that the smell of yeast would not influence the flies choices (yeast is the flies main food source.


ScienceDaily_2013 01391.txt

In addition to causing direct injury to the plant feeding can also provide the opportunity for infection by rot-inducing bacteria and fungi.


ScienceDaily_2013 01561.txt

For iron rust goes right through Nordlander said. But for pure aluminum the oxide is so hard and impermeable that once you form a three-nanometer sheet of oxide the process stops.


ScienceDaily_2013 01669.txt

The timber of many of the 198 species is of great economic interest because of its excellent insect and fungus resistance.


ScienceDaily_2013 01793.txt

Nikki Rust of the University's Durrell Institute of Conservation and Ecology (DICE) said:''This research has shown for the first time that livestock guarding dogs can successfully be used in South africa to protect livestock from attack by predators as large as leopards or small as jackals.'


ScienceDaily_2013 01831.txt

#How scavenging fungi became a plants best friendglomeromycota is an ancient lineage of fungi that has a symbiotic relationship with roots that goes back nearly 420 million years to the earliest plants.

More than two thirds of the world's plants depend on this soil-dwelling symbiotic fungus to survive including critical agricultural crops such as wheat cassava and rice.

The analysis of the Rhizophagus irregularis genome has revealed that this asexual fungus doesn't shuffle its genes the way researchers expected.

The fungus is a member of the Glomeromycota family and frequently colonizes many plants important to agriculture and forestry.

Glomeromycota also called arbuscular mycorrhizal fungi (AMF) play a vital role in how phosphorus and carbon cycles through the atmosphere and land-based ecosystems but exactly how it does this vital job is understood poorly.

It was a long hard road to a sequenced arbuscular mycorrhizal fungus. In 2006 shortly after the DOE JGI sequenced the first tree genome Populus trichocarpa it became apparent that it took a village (of other organisms) to raise a poplar tree.

Researchers Jerry Tuskan of Oak ridge National Laboratory and Francis Martin of INRA recommended that the assembly of Populus-associated fungi

Rhizophagus irregularis is the next in this linage to be released by the DOE JGI it follows the ectomycorrhizal fungal symbiont Laccaria the poplar rust pathogen Melampsora and dozens of bacterial genomes.

A relic of fungal evolution AMF diverged early on from other forms of fungus. They form dense clusters of branched structures--called arbuscules--in root cells much like a tight many-fingered handhold The arbuscules are the main route of nutrient exchange between plants and fungi.

Unable to live on their own AMF are entirely dependent on their plant hosts for the sugars they need for food.

Scientists theorize that the benefits these fungi provided enabled ancient plants to evolve during the Paleozoic era about 250 to 500 million years ago.

In exchange plants provided nutrients the fungi couldn't obtain themselves. Analysis of the R. irregularis genome also revealed several surprising details.

For comparison the button mushroom (Agaricus bisporus) also sequenced and published by the DOE JGI has a genome of about 30 Mb.

'Unlike many other fungi R. irregularis seems to lack mechanisms that can keep these transposable elements from running amok.

For example it can't make most of the toxins other plant-interacting fungi release probably the researchers speculate to avoid setting off the host plant's immune system.

It has also cast off most of its genes for breaking down plant cell walls a critical ability for free-living fungi that feed off dead organic matter in soils.

Teasing apart the complex relationship between soil fungi and plants is likely to have an impact on improving biofuel production from plant biomass.


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