Repulsion theory

Short description: Theory used to explain how plants regulate distance between new budding leaves on a steam

In botany, Repulsion theory is a theory that is used to explain how plants regulate the distance between new budding leaves on a stem. The theory states that each leaf on a stem secretes a substance that inhibits growth of a new leaf. A new leaf will only grow a certain distance away from the previous leaf where the concentration of the substance reaches a lower level.[citation needed] Although no inhibitors have yet been discovered, the theory is supported by several surgical and modeling experiments.[1]

## See also

* Phyllotaxis
* Available space theory

## References

1. ↑ "Repulsion theory". Dictionary of Botany. http://botanydictionary.org/repulsion-theory.html. Retrieved 2012-05-24.

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