Source of nitrogen associated with recovery of relative growth rate inArabidopsis thalianaacclimated to sustained cold treatment
dc.contributor.author | Atkinson, Lindsey J. | |
dc.contributor.author | Sherlock, David J. | |
dc.contributor.author | Atkin, Owen K. | |
dc.date.accessioned | 2015-09-15T04:47:28Z | |
dc.date.available | 2015-09-15T04:47:28Z | |
dc.date.issued | 2015-06 | |
dc.description.abstract | To determine (1) whether acclimation of carbon metabolism to low temperatures results in recovery of the relative growth rate (RGR) of plants in the cold and (2) the source of N underpinning cold acclimation in Arabidopsis thaliana, we supplied plants with a nutrient solution labelled with (15) N and subjected them to a temperature shift (from 23 to 5 °C). Whole-plant RGR of cold-treated plants was initially less than 30% of that of warm-maintained control plants. After 14 d, new leaves with a cold-acclimated phenotype emerged, with the RGR of cold-treated plants increasing by 50%; there was an associated recovery of root RGR and doubling of the net assimilation rate (NAR). The development of new tissues in the cold was supported initially by re-allocation of internal sources of N. In the longer term, the majority (80%) of N in the new leaves was derived from the external solution. Hence, both the nutrient status of the plant and the current availability of N from external sources are important in determining recovery of growth at low temperature. Collectively, our results reveal that both increased N use efficiency and increases in nitrogen content per se play a role in the recovery of carbon metabolism in the cold. | en_AU |
dc.description.sponsorship | This work has been supported by an NERC-UK researchgrant to O.K.A (NER/B/S/2001/00875), funding to OKAfrom the ARC-Australia (CE140100008) and by a DaphneJackson Fellowship to L.J.A. funded by the NERC-UK. | en_AU |
dc.identifier.issn | 0140-7791 | en_AU |
dc.identifier.uri | http://hdl.handle.net/1885/15406 | |
dc.provenance | http://www.sherpa.ac.uk/romeo/issn/0140-7791/..."author can archive post-print. On author's personal website, institutional repositories, arXiv, AgEcon, PhilPapers, PubMed Central, RePEc or Social Science Research Network. 12 months embargo" from SHERPA/RoMEO site (as at 16/09/15). | |
dc.publisher | Wiley | en_AU |
dc.relation | http://purl.org/au-research/grants/arc/CE140100008 | en_AU |
dc.rights | © 2014 John Wiley & Sons Ltd. | en_AU |
dc.source | Plant, Cell & Environment | en_AU |
dc.subject | acclimation | en_AU |
dc.subject | low temperature | en_AU |
dc.subject | nitrogen uptake | en_AU |
dc.subject | specific leaf area | en_AU |
dc.title | Source of nitrogen associated with recovery of relative growth rate inArabidopsis thalianaacclimated to sustained cold treatment | en_AU |
dc.type | Journal article | en_AU |
dcterms.accessRights | Open Access | |
local.bibliographicCitation.issue | 6 | en_AU |
local.bibliographicCitation.lastpage | 1034 | en_AU |
local.bibliographicCitation.startpage | 1023 | en_AU |
local.contributor.affiliation | Atkin, O. K., ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University | en_AU |
local.contributor.authoremail | owen.atkin@anu.edu.au | en_AU |
local.contributor.authoruid | u1555251 | en_AU |
local.identifier.citationvolume | 38 | en_AU |
local.identifier.doi | 10.1111/pce.12460 | en_AU |
local.identifier.essn | 1365-3040 | en_AU |
local.identifier.uidSubmittedBy | u1005913 | en_AU |
local.publisher.url | http://au.wiley.com/WileyCDA/ | en_AU |
local.type.status | Accepted Version | en_AU |
Downloads
Original bundle
1 - 1 of 1
Loading...
- Name:
- Atkinson et al Source of Nitrogen Associated with Recovery of Relative Growth 2015.pdf
- Size:
- 619.82 KB
- Format:
- Adobe Portable Document Format
License bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- license.txt
- Size:
- 884 B
- Format:
- Item-specific license agreed upon to submission
- Description: