Navigation Links
They hunt, they kill, they cheat: Single-celled algae shed light on social lives of microbes
Date:1/18/2013

e, taken from a late bloom as the bloom started to crash.

"When times are good and there are plenty of nutrients in the water, the algae use photosynthesis to gain energy from sunlight, but when nutrients become sparse, they attack and become toxic," Driscoll said. "That's when they start swimming around looking for prey. They are a little bit like carnivorous plants in that way like a Venus fly trap."

The group observed that as soon as nutrients become scarce, the toxic population ceases to grow, but the cheaters keep multiplying.

Driscoll and his team think the cheating behavior could be an adaptation to the algae bloom life style.

"During a bloom you have killed off all the prey or a huge amount of it, so why produce toxins and go looking for something that isn't there? It might be better to just keep growing and not even try to bother to keep looking for prey because it's gone."

Driscoll said the research illustrates how little is known about the ecology of microbes.

"We're just starting to understand what the mechanisms are that maintain cooperation in microbes. The theory is heavily slanted toward multicellular organisms. Only recently have people started to think about microbes cooperating."

To better understand the genes and biochemical pathways that control how the algae make their toxins, the group in Hackett's lab is investigating which genes are active in the toxic compared to the non-toxic strains.

"We are finding a number of stress-related genes are regulated differently in the cheaters," Driscoll said. "A lot of the other genes have not been studied before, especially those most likely involved in toxin production."

"The problem is that nothing close to these algae has had its genome sequenced, so they're pretty mysterious. Many of the genes we have sequenced are novel, so understanding their function is a big part of the challenge."

Unraveling the molecular mechanisms behind all this chemical warfare, cheating
'/>"/>

Contact: Daniel Stolte
stolte@email.arizona.edu
520-626-4402
University of Arizona
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. DNA analysis aids in classifying single-celled algae
2. A project to research biological and chemical aspects of microalgae to fuel approach
3. Algae biofuels: the wave of the future
4. Carbon is key for getting algae to pump out more oil
5. A nanoscopic look at the estuarys green algae
6. Viruses linked to algae that control coral health
7. Ecologist: Genetically engineered algae for biofuel pose potential risks that should be studied
8. U OF A expert pinpoints nutrient behind fresh water algae blooms
9. Oil from algae closer to reality through studies by unique collaboration of scientists
10. The slippery slope to slime: Overgrown algae causing coral reef declines
11. Algae can draw energy from other plants
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
They hunt, they kill, they cheat: Single-celled algae shed light on social lives of microbes
(Date:3/12/2015)... Beta Systems today announced ... management (IAM) solution for a fixed price and ... new IAM package, customers benefit from the 30 ... IAM implementations across different industries. The new fixed-price ... any necessary services and consulting. It spans the ...
(Date:3/10/2015)... NEW YORK , March 10, 2015  Continuing ... and the Unexpected, Hammacher Schlemmer introduces The Eye ... user,s identity before granting access to secure websites or ... trusted to verify travelers at international borders, the device ... 240 distinctive pattern points of the iris, converting them ...
(Date:3/5/2015)... In Brazil , cloud computing ... these solutions and 42 percent planning to invest in them ... percent of the companies will be investing in these solutions ... companies in the region are currently opting for the private ... command significant attention in the coming years. This trend is ...
Breaking Biology News(10 mins):Beta Systems Fast Forward IAM Available Now: a Standardized IAM Package at a Fixed Price 2Hammacher Schlemmer Introduces The Eye Scanning Password Authenticator 2Two of Every Three Brazilian Companies will have Invested in Cloud by 2015, Finds Frost & Sullivan 2Two of Every Three Brazilian Companies will have Invested in Cloud by 2015, Finds Frost & Sullivan 3Two of Every Three Brazilian Companies will have Invested in Cloud by 2015, Finds Frost & Sullivan 4
... CORVALLIS, Ore. Researchers at Oregon State University have made ... lead toward robots that not only can walk and run ... achieving an optimal approach with robotic mechanisms, studies are moving ... the military, create prosthetic limbs for humans that work much ...
... PHILADELPHIA - A team of paleontologists, including a University ... dinosaur based upon an incomplete skeleton found in western New ... rocks that preserve a swampy forest ecosystem that thrived near ... ago. The dinosaur, whose name translates to mean "grinding-mouth, ...
... considering Denmark has always been praised as the benchmark ... treatment for patients seeking ART, said Dr. Sren Ziebe ... of ESHRE and the SIG coordinator of all SIGs ... assisted reproduction treatments (ART) with up to three treatment ...
Cached Biology News:Advances made in walking, running robots 2Advances made in walking, running robots 3'Grinding mouth, wrinkle eye': Penn graduate student describes new species of plant-eating dinosaur 2
(Date:4/1/2015)... NEW YORK , April 1, 2015 /PRNewswire/ ... company advancing protein biologic therapies and oncology supportive ... Company,s 2014 achievements and a strategic update for ... the Company has made in the areas of ... MuGard programs, the FDA clearance of the ProctiGard ...
(Date:4/1/2015)... (PRWEB) April 01, 2015 The concept of ... a multi-billion dollar industry. Founder of Fasciology, Ashley Black, says ... area of fat, instead of having to wait for the ... claims that “ prior to fat cooling procedures, the ... or contouring, was liposuction, which is a highly invasive procedure.” ...
(Date:3/31/2015)... 31, 2015  Biotest Pharmaceuticals Corporation (BPC), a leading ... the addition of its newest plasma collection center located ... Conway, Arkansas . The over 16,000 square foot ... March 26 th 2015 and brings the total ... "This facility represents another milestone in our ...
(Date:3/31/2015)... , March 31, 2015  Sonoa Health, a health ... , has developed a world-first consumer health portal, Health&, ... prescriptions, wearable devices and more. Today, the ... as its CEO, who brings to the table more ... which has included working closely with the biggest names ...
Breaking Biology Technology:PlasmaTech Biopharmaceuticals Provides Strategic Update for 2015 and Review of 2014 Acheivements 2PlasmaTech Biopharmaceuticals Provides Strategic Update for 2015 and Review of 2014 Acheivements 3PlasmaTech Biopharmaceuticals Provides Strategic Update for 2015 and Review of 2014 Acheivements 4PlasmaTech Biopharmaceuticals Provides Strategic Update for 2015 and Review of 2014 Acheivements 5PlasmaTech Biopharmaceuticals Provides Strategic Update for 2015 and Review of 2014 Acheivements 6Hybrid Health Guru, Ashley Black, announces that her invention The FasciaBlaster™ rivals the “fat cooling” procedures that reduce exercise and diet resistant fat pockets. 2Hybrid Health Guru, Ashley Black, announces that her invention The FasciaBlaster™ rivals the “fat cooling” procedures that reduce exercise and diet resistant fat pockets. 3Biotest Pharmaceuticals Corporation Announces the Opening of its Newest Plasma Collection Facility in Conway, Arkansas 2Investment Banker Appointed CEO of Australian Health Tech Start-Up 2Investment Banker Appointed CEO of Australian Health Tech Start-Up 3
... KLH-conjugated, synthetic peptide corresponding ... of mouse p19ARF. The ... acids 62-75. Clone 5-C3-1. ... by immunoblot. Stability ...
EDTA, tetrasodium salt, 1 kg. Ethylene diaminetetraacetic acid.Dihydrate. Assay: 99-101% (as is).Risks: 36, 37, 38 ; Safety Precautions: 22, 36, 37. Category: Nucleotides & Enzymes & Biochemicals, Ul...
Tracker Datamatrix RS-1* reads 96 2D Bar-coded tubes within 20 seconds....
Kit containing positive control DNA all parts of the HIV-1 genome, HIV-1 negative control DNA, Primers SK38, SK39, SK19...
Biology Products: