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If a plant, say a ficus or a teak, as a sapling were exposed to radiation, and a tree of the same species were present at the same distance, which of the two would be more likely to mutate?

jonsca
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Everyone
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  • Aren't they all trees in the end, anyway? – jonsca Jul 25 '12 at 12:08
  • Either is an ecosystem in itself. – Everyone Jul 25 '12 at 13:20
  • Hehe, yeah, but I'm saying if you want to compare trees and plants you should have a true exemplar of each. – jonsca Jul 25 '12 at 13:43
  • Erm )+: I don't have an example ... – Everyone Jul 25 '12 at 13:50
  • Don't worry about it, then, it was just a suggestion. See if you get any answers with it as is. – jonsca Jul 25 '12 at 13:53
  • All trees are plants, I'll rephrase the question. Please let me know if it doesn't meet your intentions. – Rik Smith-Unna Jul 25 '12 at 22:55
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    Ionizing radiation is harmful because of damage to genes. It's thus far more damaging, to everything, earlier in the development cycle; down to the point of the very first cell, where relatively small doses of radiation can render the potential organism non-viable (like killing the cell outright). Random mutations all over a tree are unlikely to amount to much – Ben Brocka Jul 26 '12 at 01:40
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    Ben raises a good point about this question actually - @Everyone are you interested in the effect of radiation on a single cell sampled from a large tree (compared to a single cell in a sapling), or on the organisms as a whole? If it is the whole organisms, Ben has the correct answer I believe; mutations (and thus radiation) will be less of a problem to a plant once it is larger, as any cutting of the plant could go on to form a new tree; each individual cell becomes less important. (See http://biology.stackexchange.com/questions/2055/do-trees-age-on-a-microscopic-level/ out of interest) – Luke Jul 26 '12 at 16:15
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    Depending on what plant/tree is concerned, I could also imagine things like bark absorbing some of the radiation being emitted. – LanceLafontaine Jul 26 '12 at 20:28
  • @Luke: The overall effect and any inheritable changes were what I had in mind. – Everyone Jul 29 '12 at 09:35
  • @LanceLafontaine: Visualizing the bark as a radiation shield is a great idea! Anybody know whether it is possible/tested? – Everyone Jul 29 '12 at 09:40

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