1 research outputs found
Physiological response and multi-elemental content in lichens growing on agricultural fences: A pilot study comparing no-tillage and organic cropping
The objective of this study is to compare the physiological response (content and degradation of photosynthetic pigments, membrane oxidation products and soluble proteins) and multi-element content of Ramalina celastri (lichenized fungi) growing on agricultural fences with no-tillage (associated with transgenic crops and agrochemical application), organic cropping and a non-cultivated area. We found that R. celastri did not differ in its physiological response to agricultural practices, except for the contents of chlorophyll b and phaeophytin a which were high in both cultivated areas. Lichens growing in organic cropping fields have higher arsenic, chromium, uranium and internal transition elements common in the earth鈥檚 crust, possibly due to the greater resuspension of the material during soil tillage. Lichens that grow on posts close to no-tillage field had higher bromine contents (present in numerous pesticides). We found evidence that R. celastri behaves as a tolerant species to air pollution in agricultural environments.Fil: Filippini, Edith Raquel. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas. Centro Cient铆fico Tecnol贸gico Conicet - C贸rdoba. Instituto de Investigaciones Biol贸gicas y Tecnol贸gicas. Universidad Nacional de C贸rdoba. Facultad de Ciencias Exactas, F铆sicas y Naturales. Instituto de Investigaciones Biol贸gicas y Tecnol贸gicas; Argentina. Universidad Nacional de C贸rdoba. Facultad de Ciencias Exactas, F铆sicas y Naturales. Centro de Ecolog铆a y Recursos Naturales Renovables; ArgentinaFil: Ca帽as, Martha Susana. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas. Centro de Investigaciones y Transferencia de Catamarca. Universidad Nacional de Catamarca. Centro de Investigaciones y Transferencia de Catamarca; ArgentinaFil: Acosta, Walter Daniel. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas. Centro de Investigaciones y Transferencia de Catamarca. Universidad Nacional de Catamarca. Centro de Investigaciones y Transferencia de Catamarca; ArgentinaFil: Pl谩, Rita Rosa. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Energ铆a Nuclear; ArgentinaFil: Jasan, Raquel Clara. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Energ铆a Nuclear; ArgentinaFil: Ivernizzi, Rodrigo. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Energ铆a Nuclear; ArgentinaFil: Estrabou, Cecilia. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas. Centro Cient铆fico Tecnol贸gico Conicet - C贸rdoba. Instituto de Investigaciones Biol贸gicas y Tecnol贸gicas. Universidad Nacional de C贸rdoba. Facultad de Ciencias Exactas, F铆sicas y Naturales. Instituto de Investigaciones Biol贸gicas y Tecnol贸gicas; Argentina. Universidad Nacional de C贸rdoba. Facultad de Ciencias Exactas, F铆sicas y Naturales. Centro de Ecolog铆a y Recursos Naturales Renovables; Argentin