A model system to study the effects of elevated elevated CO2 on the developmental physiology of roots: the use of Arabidopsis thaliana


Crookshanks, Meg, Taylor, Gail and Dolan, Liam (1997) A model system to study the effects of elevated elevated CO2 on the developmental physiology of roots: the use of Arabidopsis thaliana Journal of Experimental Botany, 49, (320), pp. 593-597. (doi:10.1093/jxb/49.320.593).

Download

[img] PDF A_model_system_to_study_the_effects_of_elevated_CO2_on_the_developmental_physiology_of_roots_the_use_of_Arabidopsis_thaliana.pdf - Version of Record
Restricted to Repository staff only

Download (413kB)

Description/Abstract

Three developmental changes were observed in the roots of Arabidopsis thaliana (Columbia) when shoots were exposed to elevated CO2. (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 CO2 (P<0.05). These results illustrate that root growth and structure was altered following exposure to elevated CO2. The changes observed suggest that Arabidopsis provides a useful model which should, in future, be amenable to study using appropriate mutants allowing the genetic basis of the responses to be identified.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1093/jxb/49.320.593
ISSNs: 0022-0957 (print)
Keywords: arabidopsis thaliana, elevated co2, cell expansion, lateral root formation, allometric coefficient
Subjects:
ePrint ID: 191445
Date :
Date Event
10 October 1997Published
Date Deposited: 22 Jun 2011 08:25
Last Modified: 18 Apr 2017 01:55
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/191445

Actions (login required)

View Item View Item