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Pigments

pigments

Any normal or abnormal colouring matter in plants, animals, or micro-organisms.


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Re: green wavelength in plant photosynthesis

... Red are the major parts of the spectrum where chlorophyll absorbs light. This doesn't mean that green light isn't used at all, especially by other pigments such as carotenoids. I would expect that they wouldn't grow as fast, and that perhaps the leaves will produce less chlorophyll (less green).

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by robsabba
Tue Sep 01, 2009 3:59 pm
 
Forum: Botany Discussion
Topic: green wavelength in plant photosynthesis
Replies: 3
Views: 68

Isolating algae pigments - Paper chromatography?

... wavelengths of light, then measuring growth (change in numbers). Also, I was wondering if it would be interesting for him to try to detect pigments in the algae using a chromatogram. I have found some resources on this, but I was wondering if paper chromatography would work and if some ...

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by lrost
Sat Aug 29, 2009 12:27 am
 
Forum: Botany Discussion
Topic: Isolating algae pigments - Paper chromatography?
Replies: 1
Views: 37

Why are leaves green?

... blue and violet light that has the most at 400 nm wavelenght, followed by green which I think is 500. Also I think, if I remember right, that some pigments do utilize the green wavelength.

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by Linn
Tue Apr 21, 2009 12:19 am
 
Forum: Botany Discussion
Topic: Why are leaves green?
Replies: 43
Views: 41456

Why are leaves green?

it also depends on what "red pigments" you are considering. The red pigment mkwaje was referring to is phycoerythrin, which indeed has the role to allow the organism to use light that would otherwise be useless. However, most land ...

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by MrMistery
Sun Apr 19, 2009 4:24 pm
 
Forum: Botany Discussion
Topic: Why are leaves green?
Replies: 43
Views: 41456

Re:

I agree with that herb86, many photosynthetic plants /algae found some distance below the surface contain red pigments so that they can utilize the red wavelength, which is basically almost the only light wavelength that can reach deeper waters. Another thing, many scientists ...

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by Linn
Sat Apr 18, 2009 11:28 pm
 
Forum: Botany Discussion
Topic: Why are leaves green?
Replies: 43
Views: 41456
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