Intraspecific variability in Commelina erecta: Response to phosphorus addition

To examine intraspecific variability, we studied the biomass production and physiological responses of clonal replicates of the widespread perennial herb Commelina erecta L. grown under different phosphorus concentrations. Five replicates per genotype collected from a small population were exposed t...

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Detalles Bibliográficos
Autores principales:	Urich, R., Coronel, I., Silva, D., Cuberos, M., Wulff, R.D.
Formato:	JOUR
Materias:	Growth Norms of reaction Phosphorus absorption Photosynthesis Absorption Biomass Carboxylation Phosphorus Commelina erecta Plants (botany) biomass herb intraspecific variation phosphorus photosynthesis physiological response Commelina
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00084026_v81_n9_p945_Urich
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00084026_v81_n9_p945_Urich
record_format	dspace
spelling	todo:paper_00084026_v81_n9_p945_Urich2023-10-03T14:05:55Z Intraspecific variability in Commelina erecta: Response to phosphorus addition Urich, R. Coronel, I. Silva, D. Cuberos, M. Wulff, R.D. Growth Norms of reaction Phosphorus absorption Photosynthesis Absorption Biomass Carboxylation Phosphorus Commelina erecta Plants (botany) biomass herb intraspecific variation phosphorus photosynthesis physiological response Commelina Commelina erecta To examine intraspecific variability, we studied the biomass production and physiological responses of clonal replicates of the widespread perennial herb Commelina erecta L. grown under different phosphorus concentrations. Five replicates per genotype collected from a small population were exposed to 0.01 or 1.0 mmol·L-1 phosphate in a hydroponic solution and grown under natural radiation. High intraspecific variability occurred for ecologically important traits such as root, leaf, and total plant biomass, with significantly higher responses in the high phosphorus treatment. The norms of reaction for high versus low phosphorus supply often crossed, indicating that selection for different genotypes may be enhanced in some environments and reduced in others. The root phosphorus concentration and phosphorus absorption rate varied among clones. Phosphorus supply increased photosynthetic rates in all clones 15 days after the start of the experiment, but treatment differences were lost with development when significant clone variability was observed. Maximum photosynthetic rates and carboxylation efficiencies were different between clones and treatments; relative stomatal and mesophyll limitations to photosynthesis also varied among clones. Predawn photochemical efficiency remained relatively constant among treatments and clones. Commelina erecta showed a very high intraspecific variability, which is an important factor in plant survival and success. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00084026_v81_n9_p945_Urich
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Growth Norms of reaction Phosphorus absorption Photosynthesis Absorption Biomass Carboxylation Phosphorus Commelina erecta Plants (botany) biomass herb intraspecific variation phosphorus photosynthesis physiological response Commelina Commelina erecta
spellingShingle	Growth Norms of reaction Phosphorus absorption Photosynthesis Absorption Biomass Carboxylation Phosphorus Commelina erecta Plants (botany) biomass herb intraspecific variation phosphorus photosynthesis physiological response Commelina Commelina erecta Urich, R. Coronel, I. Silva, D. Cuberos, M. Wulff, R.D. Intraspecific variability in Commelina erecta: Response to phosphorus addition
topic_facet	Growth Norms of reaction Phosphorus absorption Photosynthesis Absorption Biomass Carboxylation Phosphorus Commelina erecta Plants (botany) biomass herb intraspecific variation phosphorus photosynthesis physiological response Commelina Commelina erecta
description	To examine intraspecific variability, we studied the biomass production and physiological responses of clonal replicates of the widespread perennial herb Commelina erecta L. grown under different phosphorus concentrations. Five replicates per genotype collected from a small population were exposed to 0.01 or 1.0 mmol·L-1 phosphate in a hydroponic solution and grown under natural radiation. High intraspecific variability occurred for ecologically important traits such as root, leaf, and total plant biomass, with significantly higher responses in the high phosphorus treatment. The norms of reaction for high versus low phosphorus supply often crossed, indicating that selection for different genotypes may be enhanced in some environments and reduced in others. The root phosphorus concentration and phosphorus absorption rate varied among clones. Phosphorus supply increased photosynthetic rates in all clones 15 days after the start of the experiment, but treatment differences were lost with development when significant clone variability was observed. Maximum photosynthetic rates and carboxylation efficiencies were different between clones and treatments; relative stomatal and mesophyll limitations to photosynthesis also varied among clones. Predawn photochemical efficiency remained relatively constant among treatments and clones. Commelina erecta showed a very high intraspecific variability, which is an important factor in plant survival and success.
format	JOUR
author	Urich, R. Coronel, I. Silva, D. Cuberos, M. Wulff, R.D.
author_facet	Urich, R. Coronel, I. Silva, D. Cuberos, M. Wulff, R.D.
author_sort	Urich, R.
title	Intraspecific variability in Commelina erecta: Response to phosphorus addition
title_short	Intraspecific variability in Commelina erecta: Response to phosphorus addition
title_full	Intraspecific variability in Commelina erecta: Response to phosphorus addition
title_fullStr	Intraspecific variability in Commelina erecta: Response to phosphorus addition
title_full_unstemmed	Intraspecific variability in Commelina erecta: Response to phosphorus addition
title_sort	intraspecific variability in commelina erecta: response to phosphorus addition
url	http://hdl.handle.net/20.500.12110/paper_00084026_v81_n9_p945_Urich
work_keys_str_mv	AT urichr intraspecificvariabilityincommelinaerectaresponsetophosphorusaddition AT coroneli intraspecificvariabilityincommelinaerectaresponsetophosphorusaddition AT silvad intraspecificvariabilityincommelinaerectaresponsetophosphorusaddition AT cuberosm intraspecificvariabilityincommelinaerectaresponsetophosphorusaddition AT wulffrd intraspecificvariabilityincommelinaerectaresponsetophosphorusaddition
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Intraspecific variability in Commelina erecta: Response to phosphorus addition

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