Navigation Links
Texas-bound: Fungus keeps Texas leaf-cutter ants from spreading
Date:2/22/2011

ation. Since joining Rice's faculty in 2009, he has continued his interest in leaf-cutter ants by investigating the Texas variety.

"A. texana provides a great subject for studying mutualism because it's isolated from closely related species, and it lives at the northern extreme of the leaf-cutters' range," Solomon said. "We wanted to find out how it could survive the winters here, and given that it can, we wanted to know why it hasn't expanded even farther north."

Leaf-cutters live in large colonies that contain up to 5 million members, and their subterranean nests have been found to extend almost 100 feet underground. Within these warrens, they dig thousands of tunnels that connect various chambers, where football-sized gardens of Attamyces are cultivated.

Over several years, Mueller's team systematically mapped the range of the ants and collected samples of live Attamyces fungus from dozens of nests throughout the range. Tests in the lab revealed that the Attamyces in more northerly ant colonies resists cold better than samples from southern nests, where winters are milder. The studies also found that the ants aid the cold-tolerant fungi by moving them during the coldest months of the Texas winter into deeper garden chambers where conditions are milder.

The researchers were able to show that the fungus's resistance to cold is based on genetic differences; this suggests that it has evolved during the several million years since the ants first arrived from the south with fungus in tow.

In addition to determining how leaf-cutter ants can survive outside the tropics, the study also found that the ants have been prevented from spreading farther north by the physical limitations of their fungal crop. According to Solomon, the finding that a species is limited by its mutualist is of particular interest to biologists.

"The range of the ants is not limited by their own tolerance to the cold but by the tolerance of the
'/>"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Uncovering the genome secrets of the Blackleg fungus
2. Toward controlling fungus that caused Irish potato famine
3. X-ray diffraction may play key role in stopping kissing bug, fungus
4. Microbiologists find source of fungus’s damaging growth
5. Soyscreen: Sunscreen for fungus to expand biological control of crop pests
6. The fungus among us: A new way of decomposing BPA-containing plastic
7. Research develops simple recipe for fungus-free horseradish
8. Woods noble rot fungus genetically decoded
9. Experts identify biological control to contain fungus killer in Kenyas maize supply
10. Fungus among us could become non-food source for biodiesel production
11. Deadly fungus threatens 9 bat species in Ga., Ky., N.C., S.C. and Tenn., expert says
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Texas-bound: Fungus keeps Texas leaf-cutter ants from spreading
(Date:8/29/2014)... type and number of connections in transcription factor networks ... in a study published in PLOS Computational Biology ... assortativity signature contributes to a network,s resilience against mutations. ... out-out assortativity of TFN models has a greater effect ... types of assortativity," said Dov A. Pechenick, PhD, lead ...
(Date:8/29/2014)... twist them, fold them: modern materials that are light, ... as artificial skin or electronic paper. , Making such ... but a new way of working with copper nanowires ... , Previous success in the field of ultra-lightweight ... precious gold and silver nanowires. , By turning ...
(Date:8/28/2014)... an expansion of marine protected areas is needed to ... According to investigators from the Wildlife Conservation Society and ... on saving the largest numbers of species, often at ... difficult-to-replace ecological functions. , Many vital ecological ... that also are food for millions of people. ...
Breaking Biology News(10 mins):Assortativity signatures of transcription factor networks contribute to robustness 2Copper shines as flexible conductor 2Study finds marine protected areas inadequate for protecting fish and ocean ecology 2
... EUGENE, Ore. -- Using new optical equipment, a ... of virtual reality, monitored both their behavior and brain ... brain operates as it moves. The new research ... Scientific Instrumentation Inc. (ASI) -- should help neuroscientists around ...
... largest celebration of science and engineering, the USA ... D.C., April 28-29, 2012. For the second year, ... hands-on experiments. At Carnegie,s booth last year, visitors ... produced by our high pressure lab, touched the ...
... organisms, germ cells give rise to gametes and serve ... germ cell development is the decision to leave mitosis ... eggs and sperm. Germ cell development involves unique gene ... ensure success during fertilization and embryo development. Written ...
Cached Biology News:Worm-tracking challenge leads to new tool for brain research 2Worm-tracking challenge leads to new tool for brain research 3Carnegie partners with USA Science & Engineering Festival for second year 2Carnegie partners with USA Science & Engineering Festival for second year 3
(Date:8/28/2014)... 2014  Next month, executives from clinical trial marketing firm ... beginning with Patient-Centered Clinical Trials 2014 , to be ... , September 4-5. Patient recruitment experts Bonnie A. ... will share insights on the benefits of employing an ... – from media to mobile apps – can be used ...
(Date:8/28/2014)... , Aug. 28, 2014  Armetheon, Inc. ( ... novel mid- to late-stage cardiovascular drug candidates, today ... its first round of financing. The Series A ... Hercules Bioventures with participation from investors that included ... executive, Dr. Larry Hsu , the founder ...
(Date:8/28/2014)... (PRWEB) August 28, 2014 A ... around the world is available from Strategic Consulting, ... companies. “ Industrial Microbiology Market Review, Fourth Edition: ... Market ” (IMMR—4) tracks and compares microbiology test ... North America, Europe and Asia, and forecasts future ...
(Date:8/28/2014)... CA (PRWEB) August 28, 2014 ... is offering a promotion for Eppendorf Safe ... customers to purchase the highest quality tubes at ... are ideal for customers doing chemical, medical, pharmaceutical, ... technicians who are not regularly able to afford ...
Breaking Biology Technology:BBK Worldwide Leads Sessions at Key September Events 2Armetheon Completes $7.0 Million Series A Financing 2Armetheon Completes $7.0 Million Series A Financing 32 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 22 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 3Eppendorf Safe Lock Centrifuge Tube Promotion Now Available at Major Pipette Distributor Pipette.com 2Eppendorf Safe Lock Centrifuge Tube Promotion Now Available at Major Pipette Distributor Pipette.com 3
... EDMONTON, April 22 /PRNewswire-FirstCall/ - Quest PharmaTech ... announce that it will receive,generous support from ... (SDT) for oncology applications., Sonodynamic Therapy ... in,Hypocrellin-based photodynamic therapy for oncology and skin ...
... $250,000 under March ... ... BMRX), a leading developer and supplier of consumer-based,finger-activated products, today announced ... personnel of Sequiam,Corporation (OTC Bulletin Board: SQUME) through a previously announced,agreement ...
... Conn., April 22 Rib-X Pharmaceuticals, Inc.,("Rib-X" ... on the,discovery and development of novel antibiotics ... that Graham Johnson,Ph.D., Chief Research Officer and ... Cambridge Healthtech Institute,s 2nd Annual "The,Challenge of ...
Cached Biology Technology:Quest PharmaTech Receives Support from National Research Council's Industrial Research Assistance Program (NRC-IRAP) to develop Ultrasound Technology for the Treatment of Cancer 2bioMETRX, Inc. Initiates Integration of Personnel and Assets of Sequiam Corp. 2Rib-X Pharmaceuticals to Present at Cambridge Healthtech Institute's 2nd Annual Challenge of Antibacterial Development Conference 2
TGF-beta 1,-2,-3 MAb (Clone 1D11)...
Request Info...
Mouse monoclonal [B314.1 (MAC 387)] to Macrophage L1 protein Calprotectin (rating: ****) ( Abpromise for all tested applications)....
Human/Mouse/Rat AMPK beta 1 Affinity Purified Polyclonal Ab...
Biology Products: