Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings.

Three developmental changes were observed in the roots of Arabidopsis thaliana (Columbia) when shoots were exposed to elevated CO 2 (i) The allometric coefficient, k, was enhanced significantly (P < 0.001), (ii) primary root length and root extension rate were enhanced (P < 0.001). Accelerated cortical cell expansion contributed to this effect and was associated with increased cell wall extensibility, measured as % plasticity. (III) Lateral root formation and extension were also increased in elevated CO 2 (P < 0.05). These results illustrate that root growth and structure was altered following exposure to elevated CO 2 . The changes observed suggest that Arabidopsis provides a useful model which should, in future, be amendable to study using appropriate mutants allowing the genetic basis of the responses to be identified.

Type

Journal article

Journal

Journal of Experimental Botany

Publication Date

01/03/1998

Volume

49

Pages

593 - 597