Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.provenance | CONICET | - |
| dc.creator | Pajares, Adriana Mabel | - |
| dc.creator | Bregliani, Mabel Margarita | - |
| dc.creator | Massad, Walter Alfredo | - |
| dc.creator | Challier, Cecilia | - |
| dc.creator | Boiero, María Laura | - |
| dc.creator | Montenegro, Mariana Angélica | - |
| dc.creator | Garcia, Norman Andino | - |
| dc.date | 2018-01-19T14:30:33Z | - |
| dc.date | 2018-01-19T14:30:33Z | - |
| dc.date | 2014-04 | - |
| dc.date | 2018-01-18T21:01:24Z | - |
| dc.date.accessioned | 2019-04-29T15:47:48Z | - |
| dc.date.available | 2019-04-29T15:47:48Z | - |
| dc.date.issued | 2014-04 | - |
| dc.identifier | Pajares, Adriana Mabel; Bregliani, Mabel Margarita; Massad, Walter Alfredo; Challier, Cecilia; Boiero, María Laura; et al.; On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide; Elsevier Science Sa; Journal of Photochemistry and Photobiology B: Biology; 135; 4-2014; 48-54 | - |
| dc.identifier | 1011-1344 | - |
| dc.identifier | http://hdl.handle.net/11336/33933 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/302254 | - |
| dc.description | Kinetic and mechanistic aspects of the photochemical and microbiological degradation of the herbicide Maleic Hydrazide (MH) have been studied. Riboflavin (Rf, vitamin B2) was employed as a main photosensitizer whereas Humic Acid (HA) was included as a second sensitizer in order to more closely simulate natural environmental conditions. MH quenches excited singlet and triplet states of Rf, with rate constants close to the diffusion limit. The herbicide and dissolved molecular oxygen competitively quench triplet excited Rf. As a consequence the reactive oxygen species (ROS), superoxide radical anion (O2-), hydrogen peroxide (H2O2) and singlet molecular oxygen (O2(1Δg)) are produced by electron- and energy-transfer processes, respectively, as demonstrated by auxiliary experiments employing selective auxiliary quenchers and the exclusive O2(1Δg) generator Rose Bengal (RB). As a global result, the photodegradation of Rf is retarded, whereas MH is degraded by the generated ROS. The bacteria Pseudomonas aeruginosa (Ps) and Bacillus subtilis (Bs), recognized as contaminants surface-water and soil and microbial antagonists of phytopathogenic, were used in the microbiological experiments. Results of the individual incubation of both bacteria in in the presence of MH indicate a stimulation on the Ps growth, implying the biodegradation of the herbicide, whereas MH only exerted a bacteriostatic effect on Bs. | - |
| dc.description | Fil: Pajares, Adriana Mabel. Universidad Nacional de la Patagonia; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Río Gallegos; Argentina | - |
| dc.description | Fil: Bregliani, Mabel Margarita. Universidad Nacional de la Patagonia Austral. Unidad Académica Río Gallegos; Argentina | - |
| dc.description | Fil: Massad, Walter Alfredo. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina | - |
| dc.description | Fil: Challier, Cecilia. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina | - |
| dc.description | Fil: Boiero, María Laura. Universidad Tecnologica Nacional. Facultad Regional Villa Maria; Argentina | - |
| dc.description | Fil: Montenegro, Mariana Angélica. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Tecnologica Nacional. Facultad Regional Villa Maria; Argentina. Universidad Nacional de Villa María. Instituto Académico Pedagógico de Ciencias Básicas y Aplicadas; Argentina | - |
| dc.description | Fil: Garcia, Norman Andino. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | Elsevier Science Sa | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S101113441400102X | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jphotobiol.2014.04.002 | - |
| dc.rights | info:eu-repo/semantics/restrictedAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.source.uri | http://hdl.handle.net/11336/33933 | - |
| dc.subject | BIODEGRADATION | - |
| dc.subject | HUMIC ACID | - |
| dc.subject | MALEIC HYDRAZIDE | - |
| dc.subject | PHOTODEGRADATION | - |
| dc.subject | RIBOFLAVIN | - |
| dc.subject | Otras Ciencias Químicas | - |
| dc.subject | Ciencias Químicas | - |
| dc.subject | CIENCIAS NATURALES Y EXACTAS | - |
| dc.title | On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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