Phosphorous uptake rate in two low phosphorous updated species, Aspalathus linearis and Podalyria calyptrata

dc.contributor.advisorChimphango, Samson B Men_ZA
dc.contributor.advisorCramer, Michael Den_ZA
dc.contributor.authorBasic, Dunjaen_ZA
dc.date.accessioned2017-08-08T06:48:47Z
dc.date.available2017-08-08T06:48:47Z
dc.date.issued2011en_ZA
dc.description.abstractDue to the low P nature of soils within the fynbos biome of the Cape Floristic Region, plants have developed numerous mechanisms which enable them to better acquire phosphorous. A number of species have been reported to have specialised root morphologies (root clusters, mycorrhizae) that enhance P uptake. Plants may also down-regulate the uptake of P by decreasing the expression of genes that encode P transporters. Two Fabaceae species, Podalyria calyptrata and Aspa/athus linearis, were grown in hydroponics for 5 months at a low P supply of 4μM and P-depletion studies were conducted thereafter at 5 levels of external P (4, 10, 20, 50 and lOOμM). Growth rates (biomass accumulation) were also calculated as were root to shoot ratios for both species. A. linearis had a higher uptake rate than P. calyptrata. While the fresh biomass growth rate was similar in both species, P. calyptrata had a higher dry weight root to shoot ratio than A. linearis. The results showed that both species exhibited a lack of response to increasing P concentrations and had similar RGRs. Their uptake rates differed significantly (p<0.05) and this was likely due to their different root:shoot ratios. This indicates that both species would effectively grow in low P soils and in the case of P. calyptrata, in high P soils as well.en_ZA
dc.identifier.apacitationBasic, D. (2011). <i>Phosphorous uptake rate in two low phosphorous updated species, Aspalathus linearis and Podalyria calyptrata</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/24850en_ZA
dc.identifier.chicagocitationBasic, Dunja. <i>"Phosphorous uptake rate in two low phosphorous updated species, Aspalathus linearis and Podalyria calyptrata."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2011. http://hdl.handle.net/11427/24850en_ZA
dc.identifier.citationBasic, D. 2011. Phosphorous uptake rate in two low phosphorous updated species, Aspalathus linearis and Podalyria calyptrata. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Basic, Dunja AB - Due to the low P nature of soils within the fynbos biome of the Cape Floristic Region, plants have developed numerous mechanisms which enable them to better acquire phosphorous. A number of species have been reported to have specialised root morphologies (root clusters, mycorrhizae) that enhance P uptake. Plants may also down-regulate the uptake of P by decreasing the expression of genes that encode P transporters. Two Fabaceae species, Podalyria calyptrata and Aspa/athus linearis, were grown in hydroponics for 5 months at a low P supply of 4μM and P-depletion studies were conducted thereafter at 5 levels of external P (4, 10, 20, 50 and lOOμM). Growth rates (biomass accumulation) were also calculated as were root to shoot ratios for both species. A. linearis had a higher uptake rate than P. calyptrata. While the fresh biomass growth rate was similar in both species, P. calyptrata had a higher dry weight root to shoot ratio than A. linearis. The results showed that both species exhibited a lack of response to increasing P concentrations and had similar RGRs. Their uptake rates differed significantly (p<0.05) and this was likely due to their different root:shoot ratios. This indicates that both species would effectively grow in low P soils and in the case of P. calyptrata, in high P soils as well. DA - 2011 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2011 T1 - Phosphorous uptake rate in two low phosphorous updated species, Aspalathus linearis and Podalyria calyptrata TI - Phosphorous uptake rate in two low phosphorous updated species, Aspalathus linearis and Podalyria calyptrata UR - http://hdl.handle.net/11427/24850 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/24850
dc.identifier.vancouvercitationBasic D. Phosphorous uptake rate in two low phosphorous updated species, Aspalathus linearis and Podalyria calyptrata. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2011 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/24850en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Biological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherBotanyen_ZA
dc.titlePhosphorous uptake rate in two low phosphorous updated species, Aspalathus linearis and Podalyria calyptrataen_ZA
dc.typeBachelor Thesis
dc.type.qualificationlevelHonours
dc.type.qualificationnameBSc (Hons.)en_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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