Results 11 to 20 of about 1,522 (191)

Predicting Karenia brevis Induced Respiratory Irritation at Individual Southwest Florida Beaches Using Cell Abundances Plus Wind Direction and Speed [PDF]

GeoHealth
Nearly annually, blooms of the dinoflagellate Karenia brevis form along the southwest Florida coast leading to a variety of negative impacts, including respiratory irritation (RI) in humans.
K. M. Collins, A. G. Hounshell, B. Kirkpatrick, A. Cook, K. A. Hubbard, M. C. Tomlinson, R. P. Stumpf   +6 more
doaj   +3 more sources

Neurological illnesses associated with Florida red tide (Karenia brevis) blooms. [PDF]

Harmful Algae, 2019
Human respiratory and gastrointestinal illnesses can result from exposures to brevetoxins originating from coastal Florida red tide blooms, comprising the marine alga Karenia brevis (K. brevis). Only limited research on the extent of human health risks and illness costs due to K. brevis blooms has been undertaken to date.
Diaz RE, Friedman MA, Jin D, Beet A, Kirkpatrick B, Reich A, Kirkpatrick G, Ullmann SG, Fleming LE, Hoagland P.   +9 more
europepmc   +4 more sources

Impact of Hurricane Ian (2022) on Karenia brevis Bloom on the West Florida Shelf

Geophysical Research Letters
Blooms of toxigenic Karenia brevis are a major concern to public health and marine ecosystems on the West Florida Shelf. Hurricanes and tropical storms can discharge huge amounts of terrestrial nutrients into coastal oceans over a short time and have ...
Yuren Chen
exaly   +3 more sources

Osmotic stress triggers toxin production by the dinoflagellate Karenia brevis. [PDF]

Proc Natl Acad Sci U S A, 2011
With the increase in frequency of harmful algal blooms (HABs) worldwide, a better understanding of the mechanisms that influence toxin production is needed. Karenia brevis , the major HAB dinoflagellate in the Gulf of Mexico, produces potent neurotoxins, known as brevetoxins.
Errera RM, Campbell L.
europepmc   +6 more sources

Karenia brevis allelopathy compromises the lipidome, membrane integrity, and photosynthesis of competitors. [PDF]

Sci Rep, 2018
AbstractThe formation, propagation, and maintenance of harmful algal blooms are of interest due to their negative effects on marine life and human health. Some bloom-forming algae utilize allelopathy, the release of compounds that inhibit competitors, to exclude other species dependent on a common pool of limiting resources. Allelopathy is hypothesized
Poulin RX, Hogan S, Poulson-Ellestad KL, Brown E, Fernández FM, Kubanek J.   +5 more
europepmc   +5 more sources

Increased toxicity of Karenia brevis during phosphate limited growth: ecological and evolutionary implications. [PDF]

PLoS ONE, 2013
Karenia brevis is the dominant toxic red tide algal species in the Gulf of Mexico. It produces potent neurotoxins (brevetoxins [PbTxs]), which negatively impact human and animal health, local economies, and ecosystem function.
Donnie Ransom Hardison, William G Sunda, Damian Shea, Richard Wayne Litaker   +3 more
doaj   +3 more sources

HABscope: A tool for use by citizen scientists to facilitate early warning of respiratory irritation caused by toxic blooms of Karenia brevis. [PDF]

PLoS ONE, 2019
Blooms of the toxic microalga Karenia brevis occur seasonally in Florida, Texas and other portions of the Gulf of Mexico. Brevetoxins produced during Karenia blooms can cause neurotoxic shellfish poisoning in humans, massive fish kills, and the death of ...
D Ransom Hardison, William C Holland, Robert D Currier, Barbara Kirkpatrick, Richard Stumpf, Tracy Fanara, Devin Burris, Andrew Reich, Gary J Kirkpatrick, R Wayne Litaker   +9 more
doaj   +2 more sources

Karenia brevis subsp. homogenate

, 2016
4.3. Preparation of K. brevis homogenate K. brevis culture (200 ml) was concentrated by centrifugation (5 min at 450× g) and the supernatant discarded. The cells were resuspended in phosphate buffer (800 Ll, 50 mM pH 7.0) and vortexed for 1 min. This suspension was centrifuged (14,000× g for 10 min) and the pellet was discarded.
Sun, Pengfei, Leeson, Cristian, Zhi, Xiaoduo, Leng, Fenfei, Pierce, Richard H., Henry, Michael S., Rein, Kathleen S.   +6 more
openaire   +3 more sources

Comparative Quantitative Proteomic Analysis of High and Low Toxin-Producing Karenia brevis Strains Reveals Differences in Polyketide Synthase Abundance and Redox Status of the Proteome [PDF]

Marine Drugs
To identify differentially abundant polyketide synthases (PKSs) and to characterize the biochemical consequences of brevetoxin biosynthesis, bottom-up, TMT-based quantitative proteomics and redox proteomics were conducted to compare two strains of the ...
Kathleen S. Rein, Ricardo Colon, Carlos R. Romagosa, Nicholas R. Ohnikian, Kirstie T. Francis, Samuel R. Rein   +5 more
doaj   +2 more sources

Exposure to the Florida red tide dinoflagellate, Karenia brevis, and its associated brevetoxins induces ecophysiological and proteomic alterations in Porites astreoides. [PDF]

PLoS ONE, 2020
As reef-building corals are increasingly being exposed to persistent threats that operate on both regional and global scales, there is a pressing need to better understand the complex processes that diminish coral populations. This study investigated the
David A Reynolds, Mi-Jeong Yoo, Danielle L Dixson, Cliff Ross   +3 more
doaj   +2 more sources