HOME >> BIOLOGY >> NEWS
New findings reconfirm toxicity of Pfiesteria cultures

A team of experts has refuted previous findings published last summer stating that Pfiesteria is not toxic to fish or humans. When they cultured the same strain of P. shumwayae studied by the dissenting scientists, it produced a toxin that killed fish within minutes.

Dr. JoAnn Burkholder, director of North Carolina State University's Center for Applied Aquatic Ecology, presented the results of the new study Tuesday at the 10th International Conference on Harmful Algae in St. Petersburg, Fla. The findings are significant because they reconfirm a decade of research showing that Pfiesteria is a dangerous toxic organism.

Last summer's papers had been critical of work by Burkholder and other scientists who discovered Pfiesteria and described its life cycle and toxic impacts on fish and mammals. However, the dissenting scientists' work was based primarily on research with one strain. In the new study three laboratories, assisted in toxin analysis by a fourth "blind" lab, have shown that this allegedly nontoxic strain does produce toxin after all. Burkholder said that their team's results differed because they grew the culture under conditions that allowed it to express toxicity.

"I hope these findings finally help set the record straight by addressing the widespread misinformation about this issue during the past few months," Burkholder said. "Growing these cultures is very complex and difficult work. We are entirely confident that the strain we have tested, taken from the very same culture they used, is toxic and dangerous."

Populations or strains of Pfiesteria, like other toxic algae, are known to vary in toxicity. There are strains that can kill fish with toxin and benign strains that cannot. More than 50 peer-reviewed science articles have been published about toxic Pfiesteria, in cross-confirmed research based on more than 400 toxic strains and 200 nontoxic strains.

Careful review of the culture methods used in last summer's
'"/>

Contact: Dr. JoAnn Burkholder
joann_burkholder@ncsu.edu
919-515-3421
North Carolina State University
22-Oct-2002


Page: 1 2 3 4

Related biology news :

1. International study findings link acne-like rash to effectiveness of new targeted cancer treatment
2. Virginia Tech researchers to release findings on Smith River Project
3. New HIV findings
4. Stanford researchers findings may shed light on common, deadly birth defect
5. Briggs takes to the molecular level Darwins findings on plants sensing the direction of light
6. Latest findings on PCBs to be subject of June workshop at Illinois
7. Chlamydia in men now also linked to infertility new findings
8. New MS research shows remarkable findings
9. Scientists findings may lead to better understanding of how that sleep develops, matures
10. New findings are a window into the late stages of Lou Gehrigs disease
11. New findings bring mixed blessings to those looking to combat jet lag

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: New findings reconfirm toxicity Pfiesteria cultures

(Date:3/20/2015)... DUBLIN , Mar. 19, 2015 Research and Markets ... the "Iris Biometrics - Global Strategic Business Report" ... worldwide markets for Iris Biometrics in US$ Thousands. The report ... , Japan , Europe ... East , and Latin America . ...
(Date:3/17/2015)... 2015 Emotient, the leader in facial ... general availability of Emotient Analytics , the ... of facial expressions. The system analyzes videos of ... and services. It delivers audience response metrics - ... as derived from facial evidence of emotional states. ...
(Date:3/12/2015)... , March 12, 2015 The mascots of ... Children,s Hospital, part of Wake Forest Baptist Medical Center. ... for the 2015 ACC Men,s Basketball Tournament. Young patients ... them and getting their autographs. Brenner Children,s ... It is the only children,s hospital in northwest ...
Breaking Biology News(10 mins):Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 2Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 3Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 4Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 5New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 2New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 4
(Date:3/27/2015)... 2015   SurePure, Inc . (OTCQB: SURP), ... that the Company has completed the verification process ... SurePure ("SURP") securities on OTCQB, an electronic quote ... development stage companies. On March 26, ... requirements designed to improve marketplace integrity and enhance ...
(Date:3/27/2015)... New York (PRWEB) March 27, 2015 ... the 2015 application period for 43North - the world’s ... prizes, including a grand prize of $1 million, six ... entrepreneurs from around the world to compete for prizes ... funded enterprises in the Western New York region. ...
(Date:3/26/2015)... -- BioNano Genomics, Inc., the leader in genome mapping, announced ... commercial officer. Salyer has more than 20 years of ... sciences. At BioNano, Salyer will oversee the commercialization of ... assemble a comprehensive view of complex genomes to help ... located in the United States , ...
(Date:3/26/2015)... 2015 "In America," the popular news television ... that is hosted by legendary film actor James Earl Jones, ... in an upcoming segment. , Botany is commonly described ... is actually quite a bit more complicated than that. Scientists ... of living organisms, from the smallest bacteria known to man ...
Breaking Biology Technology:SurePure Completes Verification and Approved for Trading on the OTCQB Marketplace 2Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 2Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 3Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 4Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 5BioNano Genomics Appoints Terry Salyer as Chief Commercial Officer 2BioNano Genomics Appoints Terry Salyer as Chief Commercial Officer 3
Cached News: