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:2/5/2015)... , Jan. 26, 2015   Epic Sciences , a ... today announced that Murali Prahalad , Ph.D., president and ... World Conference (PMWC) 2015: Silicon Valley, which is taking ... View, Calif. on January 26-28, 2015. ... of Age as Biomarkers." Last year, Epic Sciences was a ...
(Date:2/5/2015)... 2015 New Market Research Reports ... Forecasts To 2020 has Been Added to GrandViewReseach.com Report ... expected to reach USD 5.10 billion by 2020, according ... IR cameras help identify the site of tissue damage ... surging demand in medical imaging applications. They have been ...
(Date:2/5/2015)... 30, 2015  It is gratifying to see that ... for genomic science as a means to better understand ... treatment.  I was honored to participate in today,s White ... program. Since the 1980s my teams ... the first sequenced genome of a free living organism, ...
Breaking Biology News(10 mins):Epic Sciences to Present at Personalized Medicine World Conference 2015 on the Use of Circulating Tumor Cells as Cancer Biomarkers 2IR Camera Market Worth $5.10 Billion By 2020: Grand View Research, Inc. 2IR Camera Market Worth $5.10 Billion By 2020: Grand View Research, Inc. 3J. Craig Venter, Ph.D., Co-Founder and CEO, Human Longevity, Inc. (HLI) Participates in White House Precision Medicine Event 2
(Date:2/27/2015)... CA (PRWEB) February 27, 2015 Cytokinetics, ... forces on February 28 with patients and health care ... awareness for Rare Disease Day®. Rare Disease Day ... and calling attention to the special challenges faced by ... them. , “Cytokinetics is proud to stand alongside patients ...
(Date:2/26/2015)... , Feb. 26, 2015 S&P Capital ... Factual Stock Report coverage on MabVax Therapeutics Holdings Inc ... is a clinical stage biotechnology company focused on the ... medical needs in the treatment of cancer. MabVax has ... on the protective immune responses generated by patients who ...
(Date:2/26/2015)... SQI Diagnostics Inc. ("SQI" or the "Company") (TSX-V: SQD; ... commercializes proprietary technologies and products for advanced microarray diagnostics, ... fiscal first quarter ended December  31, 2014. All figures ... unless otherwise stated. "During the quarter ... existing customers and add to our sales pipeline," said ...
(Date:2/26/2015)... Feb. 26, 2015 Protiviti ( www.protiviti.com ), ... of the Governance Portal , designed to increase ... compliance (GRC) tasks across multiple business units and projects. ... help customers better align their controls with the COSO ... ) requirements. In response to client feedback, Protiviti has ...
Breaking Biology Technology:Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 2Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 4Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 5Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 6S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 2S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 3S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 4S&P Capital IQ Initiates Coverage on MabVax Therapeutics Holdings Inc. in S&P Capital IQ Factual Stock Reports 5SQI Diagnostics Reports First Quarter Financial Results 2SQI Diagnostics Reports First Quarter Financial Results 3SQI Diagnostics Reports First Quarter Financial Results 4SQI Diagnostics Reports First Quarter Financial Results 5SQI Diagnostics Reports First Quarter Financial Results 6Protiviti Governance Portal Helps Companies Drive Governance, Risk and Compliance Productivity Across Multiple Business Units 2Protiviti Governance Portal Helps Companies Drive Governance, Risk and Compliance Productivity Across Multiple Business Units 3
Cached News: