Navigation Links
A thirst for blood sparks toxic algal blooms
Date:6/30/2009

The blooming of toxic algae that occurs during the summer conceal a fight for life and death. Scientists at the University of Gothenburg, Sweden, propose in an article published in the journal PNAS that algal blooms are created when aggressive algae kill and injure their competitors in order to absorb the nutrients they contain.

"The behaviour of the algae can be compared to that of blood-sucking insects", says Per Jonsson of the Department of Marine Ecology.

The blooming of toxic algae in the oceans and lakes is a familiar health risk and causes problems every summer, leading to increased costs for water cleaning, water consumption and the tourist industry. Scientists still do not know why algal blooms arise, and what it is that causes certain species of microalgae to multiply and form dense blooms.

New explanation

Scientists within the research platform MARICE (Marine Chemical Ecology) at the Faculty of Science, the University of Gothenburg, present a new possible explanation of why algal blooms arise in a study published in the international journal Proceedings of the National Academy of Sciences (PNAS).

Other factors

Current theory postulates that the algae produce toxins not only in order to inhibit the growth of competing species, but also to protect themselves from predators. The strategy of inhibiting competitors, however, is difficult to explain from an evolutionary perspective. The turbulent ocean surface means, quite simply, that it is difficult for one algal species to obtain exclusive rights on the effect of a toxin that inhibits competitors. The production of the toxin must be explained by other factors.

Kills competators

Marine ecologist Per Jonsson and his colleagues suggest that the inhibition of competitors that previous research had found is only a side-effect of a considerably more aggressive behaviour: toxic algae injure or kill competing algae in ord
'/>"/>

Contact: Krister Svahn
krister.svahn@science.gu.se
46-031-786-4912
University of Gothenburg
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Iowa student engineers develop hand-held water sanitizer for a thirsty world
2. Zoologists: Sea snakes seek out freshwater to slake thirst
3. Sex is thirst-quenching for female beetles
4. Trans fats hinder multiple steps in blood flow regulation pathways
5. Chemical in blood may explain susceptibility to bladder pain
6. Genetically corrected blood cells obtained from skin cells from Fanconi anemia patients
7. New device detects heart disease using less than one drop of blood
8. Liver disease shrunk by blood-pressure drug
9. American College of Medical Genetics affirms importance of newborn screening dried blood spots
10. New evidence of how high glucose damages blood vessels could lead to new treatments
11. Heart protein regulates blood vessel maintenance
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A thirst for blood sparks toxic algal blooms
(Date:9/18/2014)... system that can operate inside the bore of an ... a biomedical research partnership program at Brigham and Women,s ... the robot, in conjunction with real-time MRI images, can ... and less discomforting for the patient. The novel system ... with greater precision. , Developed by a team of ...
(Date:9/18/2014)... the International Space Station ever starts a "frequent flyers" ... status. Recently the orbiting laboratory has hosted increasing numbers ... returned from the space station in April, and another ... third experiment is planned to launch in December. , ... around the world-- and in space. Model organisms can ...
(Date:9/18/2014)... that prompts millions of Americans to undertake jaunts into the ... a little longer within a century, according to new research. ... areas of the United States as summer temperatures linger later ... Global Ecology and Biogeography . For instance, the paper ... tree of New Hampshire could change color one to ...
Breaking Biology News(10 mins):Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 2Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 3Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 4Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 5Buzzing with activity: Fruit flies orbit Earth for science 2Buzzing with activity: Fruit flies orbit Earth for science 3Buzzing with activity: Fruit flies orbit Earth for science 4Fall foliage season may be later, but longer on warmer Earth 2Fall foliage season may be later, but longer on warmer Earth 3Fall foliage season may be later, but longer on warmer Earth 4
... generation of "green" automobile tires that can boost fuel efficiency ... the research pipeline. The new tires could help add an ... economy. That,s the topic of the cover story of the ... newsmagazine. C&EN Senior Editor Alexander Tullo explains that ...
... causing fatal and infectious diseases of the nervous system, ... sheep or Creutzfeldt-Jakob disease in humans. Scientists of Helmholtz ... in elucidating another disease mechanism of prion diseases: The ... quantities of cholesterol. Prions need this for their propagation. ...
... Rochelle, NY, November 18, 2009Quantitative polymerase chain reaction ... and rapid expansion as a result of advances ... wells and optimization-free multiplexing, reports Genetic Engineering & ... detect and simultaneously quantify specific DNA sequences is ...
Cached Biology News:The protein Srebp2 drives cholesterol formation in prion-infected neuronal cells 2
(Date:9/18/2014)... Ireland , September 18, 2014 ... and Markets ( http://www.researchandmarkets.com/research/czvg3s/biocompatible ) has ... "Biocompatible Materials - Global Strategic Business ... ,     (Logo: http://photos.prnewswire.com/prnh/20130307/600769) ,This report analyzes ... in US$ Million by the following ...
(Date:9/18/2014)... , Sept. 18, 2014 Research ... "Global and Chinese Stem Cell Industry Report, 2014-2017" ... cells are undifferentiated biological cells that can differentiate into ... more stem cells. Stem cell therapy can be applied ... hematological system disease), nervous system diseases, damage or lesion ...
(Date:9/18/2014)... Research and Markets has announced the addition ... In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to ... The global companion diagnostics market is expected to grow ... Factors such as rising need for personalized medicine in ... pharmaceutical industry, support from regulatory authorities, and emerging technologies ...
(Date:9/18/2014)...  MEI Pharma, Inc. (Nasdaq: MEIP ), an ... for cancer, announced today that Daniel P. Gold , ... NewsMakers in the Biotech Industry conference on Friday, ... Millennium Broadway Hotel & Conference Center in New ... be accessed at www.meipharma.com . A replay will be ...
Breaking Biology Technology:Biocompatible Materials - Global Strategic Business Report 2014 2Biocompatible Materials - Global Strategic Business Report 2014 3Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 3MEI Pharma To Present At BioCentury's NewsMakers Conference 2MEI Pharma To Present At BioCentury's NewsMakers Conference 3
... Amnis Corporation, a manufacturer of advanced cell imaging systems, ... Millipore, the Life Science division of Merck KGaA of Germany. ... expected to take place in the fourth quarter of 2011. ... Amnis generated sales of USD 14 million (EUR 10 ...
... infect cells is crucial to preventing countless human diseases. ... Bristol have discovered a new approach for studying molecules ... the complexity of how bacteria infect people. The ... physicists and published in the Proceedings of the ...
... 2011 /PRNewswire-Asia-FirstCall/ -- China Cord Blood Corporation (NYSE: ... cord blood collection, laboratory testing, hematopoietic stem cell processing, and ... results for the first quarter of fiscal year 2012, which ... Quarter of Fiscal 2012Highlights ...
Cached Biology Technology:Amnis Acquired by EMD Millipore - Expands Growth Potential 2Amnis Acquired by EMD Millipore - Expands Growth Potential 3Scientists develop new technologies for understanding bacterial infections 2Scientists develop new technologies for understanding bacterial infections 3China Cord Blood Corporation Reports Financial Results for the First Quarter of Fiscal 2012 2China Cord Blood Corporation Reports Financial Results for the First Quarter of Fiscal 2012 3China Cord Blood Corporation Reports Financial Results for the First Quarter of Fiscal 2012 4China Cord Blood Corporation Reports Financial Results for the First Quarter of Fiscal 2012 5China Cord Blood Corporation Reports Financial Results for the First Quarter of Fiscal 2012 6China Cord Blood Corporation Reports Financial Results for the First Quarter of Fiscal 2012 7China Cord Blood Corporation Reports Financial Results for the First Quarter of Fiscal 2012 8China Cord Blood Corporation Reports Financial Results for the First Quarter of Fiscal 2012 9China Cord Blood Corporation Reports Financial Results for the First Quarter of Fiscal 2012 10
ANTI 5-HYDROXYTRYPTOPHAN CONJ....
IMAGEQUANT 300 WKSTN, 1 EA. Category: ImageQuant CCD Imagers....
... use with T4 Polynucleotide Kinase for ... ends) of nucleic acids. In the ... the 5' phosphate group from DNA ... Gamma-phosphate of ATP to the free ...
JTV1 gene...
Biology Products: