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Questions tagged [bioluminescence]

The production and emission of light by a living organism.

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Are there any known bioluminescent species of fungi found in the Pacific Northwest?

This might not be the best place to ask this but since mycology is included I though I'd try: Some 21 years ago in late May of 2003 I was walking with a group of friends in the woods near Olympia, ...
Mr X's user avatar
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Nature of firefly Luciferase reaction mechanism?

The bioluminescence of the firefly luceferin (FL) is a two step process, with the first step requiring the enzymatic/catalytic ability of the luciferase to convert the FL into luciferyl adenylate. ...
Evamentality's user avatar
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Mechanism of the calcium-activated protein, Aequorin

In Aequorin, coelenterazine acts as the luciferin, producing light in the presence of calcium and oxygen. It is unclear to me what part of the protein structure actually catalyses this reaction after ...
Evamentality's user avatar
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How to get white bioluminescence?

So I was wondering if it is possible to get white bioluminescence. Actually, I have heard dinoflagellates that produce blue light when there is some disturbance in the water. So I was wondering how to ...
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Can someone identify this jellyfish?

Recently, I saw this video but I couldn't find out if it's CGI or if it's an actual jellyfish. If it's real, what explains its beautiful bioluminescence pattern? And could the output from the ROV ...
1__'s user avatar
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Measuring luminescence in a fluorescence plate reader

We're considering organizing some interlaboratory work on calibrating luminescence reporters (e.g., luciferase), and one of the key questions I don't know the answer to is whether most plate readers ...
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Can light function as a neurotransmitter?

Any animal with an eye has photoreceptors, which are essentially light-sensitive neurons. Green algae have channelrhodopsin, which are ion channels that open and close in response to light. Clearly, ...
StarlightDown's user avatar
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Looking for the closest example of life forms similar to some mathematical patterns

Caveat: this is my first question here, it is quite interdisciplinary, but I hope to be in the correct place to ask. I am a user of Mathematics Stack Exchange since some years ago, and this question ...
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Recent research in bioluminescence powering photosynthesis?

In 2013 there was a Chinese study published on "Bioluminescence as a light source for photosynthesis," which is briefly summarized in this Chemistry World article. There was a question on Biology.SE ...
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When do fireflies glow in their lifetime?

Does a firefly glow only when adult or larva? Or does it glow during its whole life. By glowing, I mean that they glow only when they require, not all the time. Is there a reason (evolutionary ...
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How to interpret dual luciferase assay result (RLU)?

I performed a dual luciferase assay using pGL3 firefly luc as experimental reporter and pRL-TK renilla luc as internal control (Promega assay kit). I used a manual luminometer to analyze my sample. ...
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How do I efficiently grow bioluminescent algae?

I have 6 vials of Pyrocystis lunula that I would like to grow. What would be a more suitable container, a tank or a clear jar? Also, I would like to know what kind of nutrient solution to use. Is it ...
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Identification of Bioluminescent Species in South Carolina Marshlands

I was in the brackish marshlands in South Carolina and the water was lit with short flashes of greenish bioluminescent light from a species that seemed to be floating in the current. The lights ...
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Measuring Bioluminescent Algae Intensity

For a science project, I am required to measure the intensity of the light given off by the Algae, Pyrocystis lunula. Can a photometer with a range of 1-50000 lux be able to pick it up? If not, what ...
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Can organisms like Noctiluca be commercially exploited?

Scientists think that Noctiluca flashes to startle or scare away its predators. The bioluminescence might also attract bigger predators to eat Noctiluca’s predators, just like a burglar alarm that ...
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Can a firefly control its glow?

I've just seen this animation: I always thought the firefly glow is ongoing slow chemical reaction, like in glowsticks though through different chemicals. As such it seems impossible to control ...
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Is this a firefly?

It glows without interruption. This photo was taken near Barcelona, Spain.
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What is this blue-green bioluminescent jellyfish I saw at Aquarium of the Pacific?

I took this picture of an animal in the bioluminescent section of Aquarium of the Pacific in Long Beach, California, but I neglected to write down what it was. I've searched the Aquarium's web site, ...
user31708's user avatar
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Why does my grass luminesce when I step on it?

I live in Austin Texas. My grass is in pretty bad shape but I have noticed small luminous spots on some areas after I step on them. I'm guessing this will be seasonal so, for the record, this is ...
PaulC's user avatar
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Does bioluminescence communcation occur on macroscopic level?

Some bacteria are known to communicate using bioluminescence (quorum sensing). Do we observe the same phenomena in any macroscopic species?
lumi's user avatar
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Why bacteria produce light?

After seeing this video I am curious to know why the free living bacteria produce light. What advantage will they have ? Or is it just an "unintentional" result of one of their pathways ?
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Bioluminescence and photovoltaics

I work in the PV industry and was asked a question recently during a presentation. Could Bioluminescence provide enough light to power a PV array during off peak hours? I understand the PV portion and ...
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Can Bioluminescence drive photosynthesis?

I'm trying to construct an anaerobic kitchen-waste digester at home. The major output from the digester is methane - with a significant component of carbon dioxide. To scrub/reduce the CO2 I was ...
Everyone's user avatar
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8 votes
2 answers
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What type of CCD system is required to take photos of luciferase

I'm working with luciferase and I want to be able to take a photo of it. The trouble is, I can see the luciferase glowing in all of its glory in front of me but no matter how hard I try, I can't take ...
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Does bioluminescence occur in humans too?

I read that Japanese researchers have developed very sensitive camera that recorded bioluminescence in humans; is it possible and if so what is the mechanism behind it?
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What are the major evolutionary pressures for Bioluminescence?

What are the major evolutionary pressures for Bioluminescence?
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