Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 4
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Cellulase activity and dissolved organic carbon release from lignocellulose macrophyte-derived in four trophic conditions BJM
Bottino,Flávia; Cunha-Santino,Marcela Bianchessi; Bianchini Jr.,Irineu.
Abstract Considering the importance of lignocellulose macrophyte-derived for the energy flux in aquatic ecosystems and the nutrient concentrations as a function of force which influences the decomposition process, this study aims to relate the enzymatic activity and lignocellulose hydrolysis in different trophic statuses. Water samples and two macrophyte species were collected from the littoral zone of a subtropical Brazilian Reservoir. A lignocellulosic matrix was obtained using aqueous extraction of dried plant material (≈40 °C). Incubations for decomposition of the lignocellulosic matrix were prepared using lignocelluloses, inoculums and filtered water simulating different trophic statuses with the same N:P ratio. The particulate organic carbon and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic decomposition; Cellulose; Carbon cycle; Aquatic macrophytes.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200352
Imagem não selecionada

Imprime registro no formato completo
Critical levels of organic acids on seed germination and seedling growth of wheat Rev. bras. sementes
Tunes,Lilian Madruga de; Avelar,Suemar Alexandre Gonçalves; Barros,Antonio Carlos Souza Albuquerque; Pedroso,Daniele Cardoso; Muniz,Marlove Fátima Brião; Menezes,Nilson Lemos de.
The objective of this study was to determine the responses of the wheat cultivars CD 108 and CD 111 for tolerance to organic acids. The effects of five concentrations of the three main acids formed in the soil were studied: acetic acid (0, 4, 8, 12 and 16 mM), propionic acid (0, 4, 8, 12 and 16 mM) and butyric acid (0, 2, 4, 8 and 12 mM). Tests included germination, shoot length, root length and dry weight of shoot and root. The variable root length is the most responsive variable for all the acids tested and the critical level of toxicity of acetic, propionic and butyric acids, which reduced root length by at least 50% was 9.0, 8.5 and 4.0 mM respectively. It was concluded that the presence of acetic, propionic and butyric acids in the germination...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Triticum aestivum L.; Anaerobic decomposition; Toxicity; Physiological potential.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000300002
Imagem não selecionada

Imprime registro no formato completo
Occurrence of physiological disease in flooded rice fields Ciência Rural
Brancher,Ademar; Camargo,Flávio Anastácio de Oliveira; Santos,Gabriel de Araújo.
The aim of this report is to desenhe the occurrence of the physiological disease "Parrot beak" in flooded rice grown in Rio de Janeiro state soils. The symptoms occurred particularly in the presence of decomposing organic material, affecting the yield because of the high percentage of sterile spickelets.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic decomposition; Rice straw; Sterility; Fitotoxic.
Ano: 1996 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781996000100028
Imagem não selecionada

Imprime registro no formato completo
Xylanase and cellulase activities during anaerobic decomposition of three aquatic acrophytes BJM
Nunes,Maíra F; Cunha-Santino,Marcela B. da; Bianchini Jr,Irineu.
Enzymatic activity during decomposition is extremely important to hydrolyze molecules that are assimilated by microorganisms. During aquatic macrophytes decomposition, enzymes act mainly in the breakdown of lignocellulolytic matrix fibers (i.e. cellulose, hemicellulose and lignin) that encompass the refractory fraction from organic matter. Considering the importance of enzymatic activities role in decomposition processes, this study aimed to describe the temporal changes of xylanase and cellulose activities during anaerobic decomposition of Ricciocarpus natans (freely-floating), Oxycaryum cubense (emergent) and Cabomba furcata (submersed). The aquatic macrophytes were collected in Óleo Lagoon, Luiz Antonio, São Paulo, Brazil and bioassays were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic decomposition; Aquatic macrophytes; Xylanase; Cellulase.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100010
Registros recuperados: 4
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional