Is this variation or just some sort of viral infection?

by Fardlord_

3 Comments

  1. CricketJamSession

    Could be some genetic mutation that abolished the express of chlorophyl to one side

    I know viruses can cause similar deformities in other plant but im not familiar with this case

  2. Variegation caused by chimerism has, generally speaking, sharp lines at the cell level between differently colored sections. Where as mosaic virus infections produce gradients.

    This looks like a case of sectorial chimerism here, i.e. a properly variegated plant. Even a few splotches of light color on the green part have sharp lines on them.

    [‘Plant Chimeras: The good, the bad and the Bizarria’](https://www.sciencedirect.com/science/article/pii/S0012160616300902) is *the* review to read to learn more about chimeras.

  3. evapotranspire

    Wow, that is incredibly fascinating! Thanks for posting.

    It could have been a somatic mutation affecting chlorophyll that then caused parts of the leaf to die due to its inability to obtain energy. In theory, phloem can transit around the plant to wherever it is most needed, but maybe that process doesn’t happen as efficiently in ferns as in other plants?

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