HOME >> BIOLOGY >> NEWS
Plant-fungal symbiosis found in high-heat extreme environment

ARLINGTON, Va. -- Researchers examining plants growing in the geothermal soils of Yellowstone National Park and Lassen Volcanic National Park have found evidence of symbiosis between fungi and plants that may hold clues to how plants adapt to and tolerate extreme environments.

The research was funded in part through the National Science Foundation's (NSF) Microbial Observatories Program and published in the Nov. 22 issue of the journal Science.

Biologists Regina Redman of the University of Washington and Joan Henson of Montana State University and their colleagues examined 200 samples of Dichanthelium lanuginosum, also called "Geyser's Dichanthelium," for fungal colonization. They found what may be a new species of the fungus Curvularia that survives only in temperatures greater than 98 degrees when it associates with plants.

The researchers suggest that thermotolerance may occur through symbiotic mechanisms like heat dissipation by pigment, such as melanin, or the activation of a "biological trigger" that tells the plant to react to temperature changes more rapidly or strongly than plants that lack the fungus.

The researchers grew sample plants with and without the symbiotic fungus in a laboratory and heated the soil to test thermal resistance. The plants without the fungus shriveled at 122 degrees, whereas those plants with the fungus tolerated the heat for three days. The plants were also subjected to intermittent temperatures as high as 149 degrees. The fungus-free plants died, but the fungus-bearing plants survived for 10 days.

The researchers also demonstrated that the plants provide thermal protection to the fungus by isolating it in plant roots that had a field soil temperature of 113 degrees.

"Scientific understanding of how life can thrive in such extreme environments is at its infancy," said Microbiologist Matt Kane, NSF's Microbial Observatories Program Director. "Research funded by NSF's Microbia
'"/>

Contact: Manny Van Pelt
mvanpelt@nsf.gov
703-292-8070
National Science Foundation
26-Nov-2002


Page: 1 2

Related biology news :

1. Corals can reestablish symbiosis with algae from their environments after bleaching
2. New signs of life found at the Poles
3. Key cell-death step found
4. European common frog found to use novel mating strategy
5. Byproduct of water-disinfection process found to be highly toxic
6. Genuine stem cells found in skin might treat hair loss, wounds
7. Flame retardants found on supermarket shelves
8. Anti-cancer compound in vegetables found to block late-stage breast-cancer cell growth
9. Genetic clues found for common congenital brain disorder
10. New clues to hereditary blinding disease found
11. Anti-bacterial additive found in Maryland streams

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/23/2020)... ... January 23, 2020 , ... GIOSTAR/HEAMGEN ... from stem cells. The red blood cells are made utilizing a bioreactor ... for transfusion therapy and replaces the need for a human blood donor. ...
(Date:1/23/2020)... ... January 23, 2020 , ... ... initiative, the Advanced Regenerative Manufacturing Institute (ARMI). Headquartered in Manchester, New Hampshire, ... of over 100 partner organizations from industry, government, academia and the non-profit ...
(Date:1/22/2020)... (PRWEB) , ... January 21, 2020 , ... Lifecycle Biotechnologies announces the new ... to each users’ unique needs based on their process requirements and accurately weighed to 0.001 ... Buffers , Salts , Sugars , Carbohydrates , ...
Breaking Biology News(10 mins):
(Date:1/27/2020)... ... January 27, 2020 , ... Valencell, the leading innovator in ... led by Halma plc , a FTSE 100 global group of life-saving ... and WSJ Joshua Fund. A representative from Halma will join the Valencell board ...
(Date:1/23/2020)... ... January 22, 2020 , ... Ideal ... cosmetic surgery industry at two recent North American investor forums specializing in medical ... Genuity Medical Technologies & Diagnostics Forum on November 21, 2019 in New York ...
(Date:1/22/2020)... Conn. (PRWEB) , ... January 21, 2020 , ... ... (CTC) liquid biopsy from a simple blood draw, today announced the sale of the ... Health. The Rare Scope will be used in clinical cancer research. , “The RareScope ...
(Date:1/8/2020)... SHREWSBURY, Mass. (PRWEB) , ... January 08, 2020 ... ... engineered clad metal wire composites that can achieve specific properties for use in ... Composite Clad Metal Wire combines up to three metals or alloys to ...
Breaking Biology Technology:
Cached News: