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The name scintillon was first used to describe cytoplasmic particles isolated from a bioluminescent species of dinoflagellate that were able to produce a flash of light in response to a decrease in pH. [4] Scintillons were first observed in L. polyedra by fluorescence microscopy, [5] where
Dinoflagellate blooms are generally unpredictable, short, with low species diversity, and with little species succession. [73] The low species diversity can be due to multiple factors. One way a lack of diversity may occur in a bloom is through a reduction in predation and a decreased competition.
The peak of fluorescence occurs best with ultraviolet light, but violet/blue violet also gives great results of fluorescence. Calcofluor-White is an fluorescent dye, meaning it has an excitation and emission wavelength that differs from one another. The excitation wavelength is 380 nm while the emission is 475 nm.
Fluorescence in the life sciences is used generally as a non-destructive way of tracking or analysis of biological molecules by means of the fluorescent emission at a specific frequency where there is no background from the excitation light, as relatively few cellular components are naturally fluorescent (called intrinsic or autofluorescence).
Pyrocystis fusiformis is a non-motile, tropical, epipelagic, marine dinoflagellate (flagellate microorganisms), reaching lengths of up to 1 millimetre (0.039 in). P. fusiformis display bioluminescence when disturbed or agitated. In coastal marine waters, this dinoflagellate causes glowing effects after dark.
It is a marine dinoflagellate commonly found in the waters of the Gulf of Mexico. [1] It is the organism responsible for the "Florida red tides" that affect the Gulf coasts of Florida and Texas in the U.S., and nearby coasts of Mexico. K. brevis has been known to travel great lengths around the Florida peninsula and as far north as the ...
The most common species is Noctiluca scintillans, also called N. miliaris.Blooms of this species are red-orange and can be bioluminescent when disturbed, [4] as are various other dinoflagellates, and large blooms can sometimes be seen as flickering lights on the ocean, known as the milky seas effect.
As part of its life cycle, this species produces a resting stage, a dinoflagellate cyst called Lingulodinium machaerophorum (synonym Hystrichosphaeridium machaerophorum). This cyst was first described by Deflandre and Cookson in 1955 from the Miocene of Balcombe Bay, Victoria, Australia as: "Shell globular, subsphaerical or ellipsoidal with a ...