Accumulation of K{sup +} and Cs{sup +} in Tropical Plant Species

Journal Article · Wed Aug 04 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3480229· OSTI ID:21415307

Velasco, H; Rizzotto, M; Lacerda, T ^[1]; Anjos, R M; Macario, K D; Cid, A S ^[2]; Zamboni, C B; Medeiros, I M. A. ^[3]; Fernandez, J; Rubio, L ^[4]; Audicio, P ^[5]

---

1. Grupo de Estudios Ambientales, Instituto de Matematica Aplicada San Luis (GEA-IMASL), Universidad Nacional de San Luis, CONICET, San Luis (Argentina)
2. Instituto de Fisica, Universidade Federal Fluminense, Niteroi, RJ (Brazil)
3. Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN), Sao Paulo, SP (Brazil)
4. Departamento de Biologia Vegetal, Universidad de Malaga, Malaga (Spain)
5. Centro de Investigaciones Nucleares, Facultad de Ciencias, UDELAR, Montevideo (Uruguay)

Concentrations of K{sup +} and {sup 137}Cs{sup +} in tissues of the Citrus aurantifolia were measured both by gamma spectrometry and neutron activation analysis, aiming to understand the behavior of monovalent inorganic cations in plants as well as its capability to store these elements. In contrast to K{sup +},Cs{sup +} ions are not essential elements to plants, what might explain the difference in bioavailability. However, our results have shown that {sup 137}Cs{sup +} is positively correlated to {sup 40}K{sup +} concentration within tropical plant species, suggesting that these elements might be assimilated in a similar way, and that they pass through the biological cycle together. A simple mathematical model was also proposed to describe the temporal evolution of {sup 40}K activity concentration in such tropical woody fruit species. This model exhibited close agreement with the {sup 40}K experimental results in the fruit ripening processes of lemon trees.

• OSTI ID: 21415307
• Journal Information: AIP Conference Proceedings, Vol. 1265, Issue 1; Conference: 8. Latin American symposium on nuclear physics and applications, Santiago (Chile), 15-19 Dec 2009; Other Information: DOI: 10.1063/1.3480229; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS
BIOLOGICAL AVAILABILITY
BUILDUP
CESIUM 137
CESIUM IONS
CITRUS
GAMMA SPECTROSCOPY
KAONS PLUS
LEMONS
MATHEMATICAL MODELS
NEUTRON ACTIVATION ANALYSIS
PARTIAL DIFFERENTIAL EQUATIONS
POTASSIUM 40
POTASSIUM IONS
RADIATION SOURCES
TREES
ACTIVATION ANALYSIS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BOSONS
CESIUM ISOTOPES
CHARGED PARTICLES
CHEMICAL ANALYSIS
DIFFERENTIAL EQUATIONS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
EQUATIONS
FOOD
FRUITS
HADRONS
INTERMEDIATE MASS NUCLEI
IONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KAONS
LIGHT NUCLEI
MAGNOLIOPHYTA
MAGNOLIOPSIDA
MESONS
NANOSECONDS LIVING RADIOISOTOPES
NONDESTRUCTIVE ANALYSIS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PLANTS
POTASSIUM ISOTOPES
PSEUDOSCALAR MESONS
RADIOISOTOPES
SPECTROSCOPY
STRANGE MESONS
STRANGE PARTICLES
YEARS LIVING RADIOISOTOPES