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	Provedor de dados Anais da ABC (AABC) (1) Braz. J. Plant Physiol. (1) Autor Bacchi,Osny O.S. (1) Broetto,Fernando (1) Correchel,Vladia (1) Ducatti,Carlos (1) Filippe,Joseline (1) Franceschi,Lúcia de (1) Gomes,Greice Daiane Rodrigues (1) Marchese,José Abramo (1) Ming,Lin Chau (1) Pires,Luiz F. (1) Reichardt,Klaus (1) Rodella,Roberto Antonio (1) Ventrella,Marília Contin (1) Mais... Palavra-chave C3 and C4 plants (2) Carbon (1) Erosion (1) Isotope discrimination (1) Kranz anatomy (1) Photosynthesis (1) Sugarcane (1) Δ13C (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2009 (1) 2005 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Riparian forest potential to retain sediment and carbon evaluated by the 137Cs fallout and carbon isotopic ratio techniques Anais da ABC (AABC) Pires,Luiz F.; Bacchi,Osny O.S.; Correchel,Vladia; Reichardt,Klaus; Filippe,Joseline. Riparian forests can provide an important service for aquatic ecosystems by sequestering hillslopederived sediments. However, the width of a riparian buffer zone required to filter sediments is not yet wellunderstood. Here are used two complementary tracers to measure sediment retention. The 137Cs technique and the soil carbon isotopic ratios (δ13C) are utilized to investigate sediment deposition and erosion rates on a slope transect cultivated with sugarcane followed by a secondary riparian forest zone in Iracemápolis, State of São Paulo, Brazil. The 137Cs technique and the δ13C analysis showed that the width of a riparian vegetation in accordance to a Brazilian Environmental Law (Nº4.771/65) was not sufficient in trapping sediments coming from... Tipo: Info:eu-repo/semantics/article Palavras-chave: Erosion; Δ13C; Sugarcane; C3 and C4 plants; Carbon. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000200013 Carbon isotope composition and leaf anatomy as a tool to characterize the photosynthetic mechanism of Artemisia annua L. Braz. J. Plant Physiol. Marchese,José Abramo; Broetto,Fernando; Ming,Lin Chau; Ducatti,Carlos; Rodella,Roberto Antonio; Ventrella,Marília Contin; Gomes,Greice Daiane Rodrigues; Franceschi,Lúcia de. Leaves of Artemisia annua L. are a plentiful source of artemisinin, a drug with proven effectiveness against malaria. The aim of this study was to classify the photosynthetic mechanism of A. annua through studies of the carbon isotope composition (delta 13C) and the leaf anatomy. A. annua presented a delta 13C value of - 31.76 ± 0.07, which characterizes the plants as a typical species of the C3 photosynthethic mechanism, considering that the average delta 13C values for C3 and C4 species are -28 and -14, respectively. The leaf anatomy studies were consistent with the delta 13C results, where, in spite of the existence of parenchymatic cells forming a sheath surrounding the vascular tissue, the cells do not contain chloroplasts or starch. This... Tipo: Info:eu-repo/semantics/article Palavras-chave: C3 and C4 plants; Isotope discrimination; Kranz anatomy; Photosynthesis. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202005000100016 Registros recuperados: 2 Primeira ... 1 ... Última

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