Circadian spontaneous bioluminescent glow and flashing ofGonyaulax polyedra

Krasnow, R.; Dunlap, Jay C.; Taylor, W. Rowland; Hastings, J. Woodland; Vetterling, William T.; Gooch, Van D.

doi:10.1007/bf00688730

Cited by 50 publications

(36 citation statements)

References 20 publications

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“…This is probably because the blue light present in the &dquo;cool-white&dquo; fluorescent illumination of WW will suppress or &dquo;photoinhibit&dquo; bioluminescent flashing more effectively than does red light Krasnow et al, 1980). In fact, some evidence suggests not only that red light does not photoinhibit, but that it even stimulates bioluminescent flashing in Gonyaulax (Sweeney et al, 1983).…”

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confidence: 97%

“…For example, the circadian phase of a light pulse given 8 circadian hours after transfer to constant conditions, would be CT 20; if given 18 circadian hours after transfer to constant conditions, it would be CT 6; and so on. RESULTS z FREE-R UN: RED VERS US WHITE ILLUMINATION Spontaneous bioluminescence in Gonyaulax occurs in two kinetically distinct forms: constant &dquo;glow&dquo; and discrete &dquo;flashes&dquo; of 100-msec duration (Krasnow et al, 1980). Several characteristics of these bioluminescence rhythms depend upon the color of the background illumination.…”

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confidence: 99%

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Circadian Phototransduction: Phase Resetting and Frequency of the Circadian Clock of Gonyaulax Cells in Red Light1

Johnson

Hastings

1989

J Biol Rhythms

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Constant red light (RR) influences the Gonyaulax clock in several ways: (1) Phase resetting by white or blue light pulses is stronger under background RR than in constant white light (WW); (2) frequency of the rhythm is less in RR than in WW; and (3) the amplitude of the spontaneous flashing rhythm is greater in RR than in WW. The phase response curve (PRC) to 4-hr white or blue light pulses is of high amplitude (Type 0) for cells in RR, but is of lower amplitude (Type 1) for cells in WW. In all cases, the PRC is highly asymmetrical: The magnitude of advance phase resetting is far higher than that of delay resetting. Consistent with this PRC, Gonyaulax cells in RR (free-running period greater than 24 hr) will entrain to T cycles of between 21 and 26.5 hr. The bioluminescence rhythms exhibit "masking" by blue light pulses while entrained to these T cycles. The fluence response of phase resetting to light-pulse intensity is not linear or logarithmic--rather, it is discontinuous. This feature is consistent with a limit cycle interpretation of Type 0 resetting of circadian clocks. Light pulses that cause large phase shifts also shorten the subsequent free-running period. The phase angle difference between the clock and the previous LD cycle is within 2 hr of the same phase between 16 degrees C and 25 degrees C, as determined from the light PRCs at various temperatures. Several drugs that inhibit mitochondria and/or electron transport will partially inhibit the phase shift by light.

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confidence: 97%

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confidence: 99%

Circadian Phototransduction: Phase Resetting and Frequency of the Circadian Clock of Gonyaulax Cells in Red Light1

Johnson

Hastings

1989

J Biol Rhythms

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“…The former, which emit brief (Ͻ1 s), bright flashes in response to mechanical disturbance (7), are known to be primarily responsible for the luminescence seen in breaking waves or in the wake of a ship, which may persist for many kilometers in the case of large ships. Given the state of satellite technology and sampling limitations, experts within the remotesensing community have generally dismissed the prospect of detecting this type of bioluminescence emission from space as unlikely, if not impossible.…”

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confidence: 99%

Detection of a bioluminescent milky sea from space

Miller

Haddock

Elvidge

et al. 2005

Proc. Natl. Acad. Sci. U.S.A.

132

102

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On many occasions over the centuries, mariners have reported witnessing surreal nocturnal displays where the surface of the sea produces an intense, uniform, and sustained glow that extends to the horizon in all directions. Although such emissions cannot be fully reconciled with the known features of any light-emitting organism, these so-called ''milky seas'' are hypothesized to be manifestations of unusually strong bioluminescence produced by colonies of bacteria in association with a microalgal bloom in the surface waters. Because of their ephemeral nature and the paucity of scientific observations, an explanation of milky seas has remained elusive. Here, we report the first satellite observations of the phenomenon. An Ϸ15,400-km 2 area of the northwestern Indian Ocean, roughly the size of the state of Connecticut, was observed to glow over 3 consecutive nights, corroborated on the first night by a ship-based account. This unanticipated application of satellite remote-sensing technology provides insights pertaining to the formation and scale of these poorly understood events.bacterial bioluminescence ͉ satellite remote sensing ͉ microbial ecology ͉ quorum sensing ͉ marine biology

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“…The intensity of bioluminescence changes 30-100 times because of the intensity of the sun's daily motion. (Krasnow et al, 1980;Hamman et al 1981;Gitelzon et al, 1992;Sullivan and Swift, 1994;Li et al, 1996;Akimoto et al, 2004;Melnikova, 2014). Analysis of the vertical profiles of day and night bioluminescence of Black Sea plankton showed that the total luminescence in October-November in 60-m water layer was significantly higher at night than during photoperiod.…”

Section: Resultsmentioning

confidence: 99%

Untitled

Мельникова¹

2016

Turk. J. Fish. Aquat. Sci.

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The change in the intensity of bioluminescence fields in the coastal area of the western shelf of the Crimea in the dark time of day was discussed. It is noted, that the biomass of luminous organisms closely correlate with the biomass of plankton and other pelagic creatures, including commercial pelagic fish. The parameters of the basic biological rhythms of plankton communities are found using method of Fourier series. These rhythms leads to change of intensity of the bioluminescence field. It is shown, that the change of the intensity of bioluminescence field with a 14 hours period due to duration of photoand dark-periods. Changes in the intensity of the bioluminescence fields with periods of 4.7 and 2.8 hours due to endogenous circadian rhythms of plankton community. An original method for evaluation of errors of periods found of biological rhythms was proposed. The correlation coefficient between measured and calculated values of the intensity of the bioluminescence fields was estimated, taking into account the influence of three main biological rhythms, was r = 0.906, that confirms the correctness of the assumptions made.

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Circadian spontaneous bioluminescent glow and flashing ofGonyaulax polyedra

Cited by 50 publications

References 20 publications

Circadian Phototransduction: Phase Resetting and Frequency of the Circadian Clock of Gonyaulax Cells in Red Light1

Circadian Phototransduction: Phase Resetting and Frequency of the Circadian Clock of Gonyaulax Cells in Red Light1

Detection of a bioluminescent milky sea from space

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