Navigation Links
Did past climate change encourage tree-killing fungi?
Date:8/5/2011

The demise of the world's forests some 250 million years ago likely was accelerated by aggressive tree-killing fungi triggered by global climate change, according to a new study by a University of California, Berkeley, scientist and her Dutch and British colleagues.

The researchers do not rule out the possibility that today's changing climate could cause a similar increase in pathogenic soil bacteria that could devastate forests already stressed by a warming climate and pollution.

The study, available online today (Aug. 5), will be published in the September 2011 print edition of the journal Geology of the Geological Society of America.

The death of the forests primarily comprised of conifers, which are distant relatives of today's pines and firs was part of the largest extinction of life on Earth, which occurred when today's continents were part of one supercontinent, Pangaea. The so-called Permian extinction likely was triggered by immense volcanic eruptions in what is now Siberia. The huge amounts of gas and dust thrown into the atmosphere altered global climate, and some 95 percent of marine organisms and 70 percent of land organisms eventually went extinct.

The scientists claim that thread-like or filamentous microfossils commonly preserved in Permian rock are relatives of a group of fungi, Rhizoctonia, that today is known for members that attack and kill plants.

"Modern Rhizoctonia include some of the most ubiquitous plant pathogens, causing root, stem and foliar diseases in a wide variety of plants," said coauthor Cindy Looy, UC Berkeley assistant professor of integrative biology. "Based on patterns of present-day forest decline, it is likely that fungal disease has been an essential accessory in woodland destabilization, accelerating widespread tree mortality during the end-Permian crisis."

The conifer forests, which covered the semi-arid equatorial region of Pangaea, were eventually
'/>"/>

Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Long-term study shows effect of climate change on animal diversity
2. White Mountain Research Station to host climate change conference
3. Researchers find animal with ability to survive climate change
4. Severe climate change costs forecast for Pennsylvania, N.C., Tennessee, N.D.
5. Experts discuss climate change during UH lecture series
6. Dont blame cities for climate change, see them as solutions
7. Green coffee-growing practices buffer climate-change impacts
8. Brookhaven scientists take off for southeastern Pacific climate study
9. Himalaya -- Changing Landscapes photo exhibition draws attention to the impacts of climate change
10. British scientists go cloud-hopping in the Pacific to improve climate predictions
11. Northwest climate change is target of $3.2M in grants to University of Oregon
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Did past climate change encourage tree-killing fungi?
(Date:8/29/2014)... is available in German . ... in the natural nitrogen cycle on Earth and in ... were thought to depend on nitrite as their source ... Holger Daims, a microbiologist at the University of Vienna, ... as an alternative source of energy. The oxidation of ...
(Date:8/29/2014)... - The rise of the Tibetan plateau -- the ... is important for both its profound effect on climate ... published in GSA Bulletin , Katharine Huntington and ... thermometry -- using modern and fossil snail shells to ... southwestern Tibet. , Views range widely on the ...
(Date:8/28/2014)... available in German . ... its name to a striking pattern of blue stripes alternating ... reflective silvery cells, and yellow cells emerge during growth in ... a multilayered mosaic to compose the characteristic colour pattern. ... have to interact to form proper stripes, the embryonic origin ...
Breaking Biology News(10 mins):Hydrogen powers important nitrogen-transforming bacteria 2Hydrogen powers important nitrogen-transforming bacteria 3Snails tell of the rise and fall of the Tibetan Plateau 2Snails tell of the rise and fall of the Tibetan Plateau 3Snails tell of the rise and fall of the Tibetan Plateau 4Snails tell of the rise and fall of the Tibetan Plateau 5Snails tell of the rise and fall of the Tibetan Plateau 6Snails tell of the rise and fall of the Tibetan Plateau 7How the zebrafish gets its stripes 2How the zebrafish gets its stripes 3
... the Robarts Research Institute at The University of Western ... used a unique genetically-modified mouse line to reveal a ... led by Marco Prado, Robert Gros and Vania Prado ... how the decreased release of the neurotransmitter acetylcholine, a ...
... Cancer Institute have further developed a potential new treatment ... cancer cells, removing them from the body. The treatment, ... using samples from human cancer patients. The results appear ... are primarily interested in developing an effective method to ...
... (Boston) Boston University School of Medicine (BUSM) ... physiology, with joint appointments in biomedical engineering and medicine, ... Lipids. This award is being bestowed by ... in the application of nuclear magnetic resonance methods to ...
Cached Biology News:Genetically-modified mice reveal another mechanism contributing to heart failure 2Magnetic nanoparticles show promise for combating human cancer 2
(Date:8/29/2014)... 29, 2014 Local veterinarian, Dr. Keith ... are seeking candidates to participate in an investigational study ... The ultimate goal of this study is to determine ... one or two arthritically affected joints can help reduce ... Candidates for the current investigational study must be older ...
(Date:8/29/2014)... August 29, 2014 Intrinsic Imaging, ... certified, GAMP® 5 compliant imaging core lab, announced ... Phase II clinical trial to assess a new ... this trial, Intrinsic Imaging will provide comprehensive imaging ... protocol and charter development, site qualification, site training ...
(Date:8/28/2014)... MA (PRWEB) August 28, 2014 “This kit ... test to screen from 0 to 150 ppb,” said Mark ... is a significant benefit to plant owners and USDA-GIPSA inspection ... and other commodities. Testing can take place in a matter ... only can the plant test the feed and grain before ...
(Date:8/28/2014)... August 28, 2014 The ability for ... culture that will allow individuals to perform at the ... important for employers looking to compete in this post–recession ... embracing this trend, as the sector increasingly focuses on ... company, which will have real results on the organization's ...
Breaking Biology Technology:Burnt Hills Veterinary Hospital Seeks Candidates for an Investigational Study of Stem Cells for Dogs with Arthritis 2Intrinsic Imaging Awarded Phase II Clinical Trial to Assess New Treatment for Non-Hodgkin’s Lymphoma 2Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 2Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 3
... diaDexus, Inc. (OTC Bulletin Board: DDXS ... commercialization of patent-protected in vitro diagnostic products ... the company, formerly known as VaxGen, Inc. and traded ... (VXGN), has been renamed diaDexus, Inc. diaDexus, common stock ...
... and latest developments ... ... --> ... are keyed by longUrl, so we need to grab the first one. for (var r in data.results) { first_result ...
... Medicago Receives Regulatory Approval and Commences Phase II Clinical Testing of its Avian Influenza Vaccine ... ... if (typeof(lpUnit)==,undefined,) var lpUnit=,PRN,; --> ... = ""; BitlyCB.alertResponse = function(data) { var s = ,; var first_result; // Results are keyed by longUrl, so ...
Cached Biology Technology:diaDexus Announces Name Change From VaxGen 2diaDexus Announces Name Change From VaxGen 3NEURO-BIOTECH CORPORATION: Updates and latest developments 2NEURO-BIOTECH CORPORATION: Updates and latest developments 3NEURO-BIOTECH CORPORATION: Updates and latest developments 4NEURO-BIOTECH CORPORATION: Updates and latest developments 5NEURO-BIOTECH CORPORATION: Updates and latest developments 6NEURO-BIOTECH CORPORATION: Updates and latest developments 7NEURO-BIOTECH CORPORATION: Updates and latest developments 8NEURO-BIOTECH CORPORATION: Updates and latest developments 9Medicago Receives Regulatory Approval and Commences Phase II Clinical Testing of its Avian Influenza Vaccine 2Medicago Receives Regulatory Approval and Commences Phase II Clinical Testing of its Avian Influenza Vaccine 3Medicago Receives Regulatory Approval and Commences Phase II Clinical Testing of its Avian Influenza Vaccine 4Medicago Receives Regulatory Approval and Commences Phase II Clinical Testing of its Avian Influenza Vaccine 5Medicago Receives Regulatory Approval and Commences Phase II Clinical Testing of its Avian Influenza Vaccine 6Medicago Receives Regulatory Approval and Commences Phase II Clinical Testing of its Avian Influenza Vaccine 7Medicago Receives Regulatory Approval and Commences Phase II Clinical Testing of its Avian Influenza Vaccine 8
Chicken polyclonal to YebU ( Abpromise for all tested applications). Antigen: Synthetic peptide, corresponding to amino acids 196-244 of E. coli YebU....
Mouse monoclonal [6911] to E. coli K99 pilus ( Abpromise for all tested applications)....
... Antibody to CRF The ... ovine CRF sequence that it ... fibres are found in the ... brain in colchicine treated 4% ...
... siSolutions siRNA Custom Synthesis ... effective duplex RNA to knockdown ... 21-mers (19 RNA base pairs ... recently-published 27-mers, or other lengths ...
Biology Products: