Influence of Different Nutrient Concentrations and Population Densities on the Root System of Arabidopsis thaliana
Journal of Plant Sciences
Volume 5, Issue 5, October 2017, Pages: 165-169
Received: Jun. 12, 2017;
Accepted: Jun. 28, 2017;
Published: Nov. 2, 2017
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Jiashu Chu, Natural Sciences and Science Education Academic Group, National Institute of Education, Nanyang Technological University, Singapore
Audrey Jia Qi Gwee, Natural Sciences and Science Education Academic Group, National Institute of Education, Nanyang Technological University, Singapore
Zhong Chen, Natural Sciences and Science Education Academic Group, National Institute of Education, Nanyang Technological University, Singapore
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This study examined the modifications made to the root system architecture of Arabidopsis thaliana when subjected to an increase in population (biotic) and a decrease in nutrient concentration (abiotic). Population density was found to have significant effect on number of root hairs (p<0.05) while nutrient concentration was found to have significant effect on length of primary root and number of lateral roots (p<0.05). Furthermore the study showed that Arabidopsis thaliana modifies its root system architecture in response to different growing conditions separately but it did not show significant interaction for ‘population density x nutrient concentration’ in all response variables (p>0.05). This work could serve as a guideline when considering sowing density and fertilizer application to other crop species.
Root System Architecture, Lateral Root, Root Hair, Arabidopsis thaliana, Population Density
To cite this article
Audrey Jia Qi Gwee,
Influence of Different Nutrient Concentrations and Population Densities on the Root System of Arabidopsis thaliana, Journal of Plant Sciences.
Vol. 5, No. 5,
2017, pp. 165-169.
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Smith S, Smet ID 2012 Root system architecture: insights of Arabidopsis and cereal crops. Phil. Trans. R. Soc. B 367: 1441-1452.
Pacheco-Villalobos D, Hardtke CS 2012 Natural genetic variation of root system architecture from Arabidopsis to Brachypodium: towards adaptive value. Phil. Trans. R. Soc. B. 367: 1552-1558.
Hess L, Kroon H 2007 Effects of rooting volume and nutrient availability as an alternative explanation for root self/non-self discrimination. J. Ecol. 95: 241-251.
Kiss JZ, Miller KM, Ogden LA, Roth KK 2002 Phototropism and gravitopism in lateral roots of Arabidopsis. Plant Cell Physiol. 43: 35-43.
Carol RJ, Dolan L 2002 Building a hair: tip growth in Arabidopsis thaliana root hairs. Philos. Trans. R. Soc., B 357: 815-821.
O’Brien EE, Brown JS 2008 Games roots play: effects of soil volume and nutrients. J. Ecol. 96: 438-446.
Milla R, Forero DM, Escudero A, Iriondo JM 2009 Growing with siblings: a common ground for cooperation or for fiercer competition among plants? Proc. R. Soc. B 276: 2531-2540.
Messier C, Coll L, Poitras-Lariviere A, Belanger N, and Brisson J 2009 Resource and non-resouce root competition effects of grasses on early-versus late-successional trees. J. Ecol. 97: 548-554.
Kroon H 2007 How do roots interact? AAAS. Sel. Symp. 318: 1562-1563.
Van Wijk M T, Williams M, Gough L, Hobbie SE, Shaver GR 2003 Luxury consumption of soil nutrients: a possible competitive strategy in above-ground and below-ground biomass allocation and root morphology for slow-growing artic vegetation? J. Ecol. 91: 664-676.