PUFA Is Made Specifically For Photosynthesis

Discussion in 'Science Basics' started by Luann, Oct 27, 2016.

  1. Luann

    Luann Member

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    The origin of PUFA is the FAD2 and FAD6 oleate desaturases in the E.R. and chloroplasts of photosynthetic plants, rotifers, and algae. Plants store much of their polyunsaturated fat in their leaves and stem, though fruits also photosynthesize and do contain chloroplasts with polyunsaturated acids. Plastids of other kinds, like the amyloplasts in tubers, have PUFA but in smaller percents in the cell. It seems that FAD2 and -2 are most active in the areas of organisms that get energy from light.

    http://ucce.ucdavis.edu/files/datastore/234-1766.pdf

    http://plankt.oxfordjournals.org/content/21/7/1355.full.pdf

    Trienoic fatty acids are required to maintain chloroplast function at low temperatures. - PubMed - NCBI

    Polyunsaturated membranes are required for photosynthetic competence in a mutant of Arabidopsis. - PubMed - NCBI
     
  2. Bahaa El wazzan

    Bahaa El wazzan Member

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  3. Such_Saturation

    Such_Saturation Member

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    They are also the coldest parts...
     
  4. OP
    Luann

    Luann Member

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    Cold stress and salt stress tolerance are both attributed to the production of PUFA in the plant, in some studies, but sucrose will help with those, whereas PUFA is the limiting factor in photosynthesis (read the last link).
     
  5. Regina

    Regina Member

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    Hmmm. Photosynthesis then almost sounds like lipofuscin?? :eek:
     
  6. Such_Saturation

    Such_Saturation Member

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    Melanin can convert light energy...
     
  7. Regina

    Regina Member

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    If there is enough???
     
  8. OP
    Luann

    Luann Member

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    Melanin does not convert light to ATP, so it's not an autotrophic process.

    Lipofuscion looks like it's mostly found in animals that are exposed to the unsaturated fats in a plant, so it's not the same as the product of photosynthesis in the plants.
     
  9. lvysaur

    lvysaur Member

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    All pigments convert light energy to heat, I'm pretty certain melanin is no different.

    I developed lipofuscin spots on my hairline after starting krill oil. They started coming in after about 6 months of taking them.
     
  10. Such_Saturation

    Such_Saturation Member

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    I think it can convert it to electronic energy or something... I'll have to check
     
  11. meatbag

    meatbag Member

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    :eek:
     
  12. Such_Saturation

    Such_Saturation Member

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    Like cytochrome I mean...
     
  13. meatbag

    meatbag Member

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    :cool:
     
  14. Such_Saturation

    Such_Saturation Member

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    :nailbiting:
     
  15. Such_Saturation

    Such_Saturation Member

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  16. Ideonaut

    Ideonaut Member

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    Not to be negative, but "so what?" to all of the above. Any health knowledge ramifications?

    I cancelled my subscription to Science News many years ago when often there wasn't ***t of import to read in it. One issue included an article about the number of ants that fall out of trees.
     
  17. Such_Saturation

    Such_Saturation Member

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    The poor things :cry:
     
  18. Tenacity

    Tenacity Member

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    Perhaps this knowledge isn't applicable to health just yet. Knowledge is inherently valuable. Newton knew nothing of future ramifications when he detailed gravity - the technology just wasn't there. But now we use that knowledge for all sorts of things.

    Or maybe it does have present-day implications. It's interesting either way.
     
  19. Amazoniac

    Amazoniac Member

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    That's because when you subscribed, you left all fields marked because your intention back then was to unravel the universe by embracing everything at once..
     
  20. whit

    whit Member

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    Well, does anyone know if they stuck the landing or not?
     
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