Sentences with word «dinoflagellate»

Further research would look at more species of dinoflagellates with extrusomes, attempting to obtain a better understanding of their diversity and evolutionary history.

Two are caused by dinoflagellate species, Prorocentrum minimum and Kalrodinium veneficum, and the third by cyanobacteria, sometimes called blue - green algae.

Single - celled algae called dinoflagellates are one of the organisms responsible for harmful algal blooms that poison shellfish and leave fish floating belly - up.

Contrasting paleoceanographic conditions off western Sahel during Heinrich Stadial 1: A new conceptfor productivity development revealed by dinoflagellate cysts Ilham Bouimetarhan, Jeroen Groeneveld, Matthias Zabel, Lydie Dupont, Karin Zonneveld

Anke Kremp, a researcher at the Finnish Environment Institute, reported in a January 2012 study that eight strains of the toxic dinoflagellate Alexandrium ostenfeldii grew at very different rates under increased acidity and higher temperatures.

The leaves were also meant to simulate Puerto Rico's bioluminescent bays, a natural phenomenon caused by dinoflagellates, photosynthetic underwater organisms that emit light when agitated.

FORGET swimming with dolphins, says marine biologist Woody Hastings, and try it with dinoflagellates.

Florida's coastline has frequent outbreaks of the toxic dinoflagellate Karenia brevis, whose toxins can escape into the air and cause severe respiratory distress.

Tiny dinoflagellates seem to use their bioluminescence to the same effect, «like a scream,» Widder says.

These bioluminescent dinoflagellates emit beautiful blue light at night when swirled in the dark.

Paralytic shellfish toxins (saxitoxins), which cause paralytic shellfish poisoning, are associated with marine dinoflagellates in the genus Alexandrium.

«But some planktonic microbes, like dinoflagellates, are predators and have developed incredible defensive and prey capture mechanisms.»

Spatiotemporal changes in the genetic diversity of harmful algal blooms caused by the toxic dinoflagellate

Ciguatera fish poisoning is a foodborne illness caused by eating certain reef fish whose flesh contains ciguatoxins, small lipid toxins originally produced by single - celled dinoflagellates that live on or near the reef.

Until now, how dinoflagellates acquired and fired these projectiles, called extrusomes, was unclear.

The symbiosis between corals and zooxanthellae (dinoflagellate genus Symbiodinium) form the foundation of coral reef biology.

In their analysis, the Heidelberg group, together with a group from the University of British Columbia in Canada, showed that the cnidaria and dinoflagellates use entirely different genes and proteins to construct their respective miniature harpoons.

He found that warm - water phytoplankton, known as dinoflagellates, were replaced during that time by species from the colder waters of the North Atlantic.

The ecosystem relies on a stable symbiotic relationship between the host cnidarian animals, including corals and sea anemones, and the symbiont dinoflagellate.

Florida Bioluminescence Kayak Tours are available from June through September for Dinoflagellates, «Dino» Bio: when the Indian River Lagoon waters are the warmest.

Coral reefs edification is based on the formation of a calcium carbonate skeleton by scleractinian corals ad on the symbiotic association that many of them establish with photosynthetic Dinoflagellates from the genus Symbiodinium.

She has examined the uptake of symbiotic dinoflagellates and endolithic algae by newly settled corals and the role of sediment and CCAs in this process.

Light micrograph (left), illustration (center) and transmission electron micrograph (right) show the eye - like structure in warnowiid dinoflagellates.

Dinoflagellates eat these blooms and are then set upon by swarms of krill, which, in turn, are eaten by many larger animals, including baleen whales.

Although many dinoflagellates can survive through photosynthesis alone, some species are able to grow twice as fast by preying on other algae — and it is this feeding mechanism that is now thought to be aided by the production of toxins.

Other widespread population buildups can be toxic — as in May when a bloom of dinoflagellates covered nearly 4,000 square miles off China with a so - called red tide that killed off millions of fish.

As a next step, the team aims to introduce genetic mutations that are capable of reversing uracil deficiency in the mutant dinoflagellate, which may provide clues for identifying algal genes responsible for symbiosis.

«First we established an efficient method for culturing dinoflagellate cells in our lab,» said Shinichiro Maruyama, an assistant professor at Tohoku University.

Several large dinoflagellate species hunt despite living inside a rigid shell.

Starting from simple secretory vesicles, which released enzymes and adhesive proteins to attach to and digest other cells, highly complex subcellular weapons systems in cnidarians and dinoflagellate genes presumably developed in different ways.

warnowiids hunt other dinoflagellates, many of which are transparent.

Most of the time, the Pfiesteria dinoflagellate is a nontoxic predator that feeds on small organisms such as algae, bacteria, and small animals.

Single cell genomics of uncultured marine alveolates shows paraphyly of basal dinoflagellates — Jürgen F H Strassert, ISME

They are typically 0.02 — 0.15 millimetres in diameter, and they propel themselves through the oceans using whip - like protuberances called flagella (dinoflagellate means «whirling whip»).

(The algae that causes the severe «red tides - fish kills» are also dinoflagellates and related to zooxanthellae.)

A bioluminescent bay is an ideal habitat for the flourishing of small dinoflagellate plankton, most of which emit a bluish light as a defense mechanism when agitated.

Bioluminescent dinoflagellate ecosystem bays are among the rarest and most fragile, with the most famous ones being the Bioluminescent Bay in La Parguera, Lajas, Puerto Rico and Mosquito Bay in Vieques, Puerto Rico, and Las cabezas de San Juan Reserva Natural Fajardo, Puerto Rico.

Tiny dinoflagellates make the water come alive and speeding fish become underwater fireworks.

The proliferation of algae and dinoflagellates during these warming events could increase the number of people affected by toxins (such as ciguatera) due to the consumption of marine food sources (Union des Comores, 2002; see also Chapter 16, Section 16.4.5).

Molecular isotopic and dinoflagellate evidence for Late Holocene freshening of the Black Sea

The Dino Sphere is an incredible, living object that's filled with thousands of non-toxic plankton organisms called Dinoflagellates.

Dinophysis shellfish toxins (okadaic acid and derivatives) cause diarrhetic shellfish poisoning and are produced by marine dinoflagellates in the genus Dinophysis.