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2. About the Contributors

Author

Moise, Alexander R., primary, Abizaid, Alexandre, additional, Fiorelli, Alfredo Inácio, additional, de Moraes, Aline Alexandra Iannoni, additional, Sales, Allan Robson Kluser, additional, Nussbacher, Amit, additional, Andrade, Ana Cristina, additional, Lottenberg, Ana Maria, additional, Azambuja, Ana P., additional, Dantas, Ana Paula, additional, Costa, Ângela M.S., additional, Lopes, Antonio Augusto, additional, Chagas, Antonio Carlos Palandri, additional, Filho, Antonio Casela, additional, de Souza, Breno Bernardes, additional, Noel Bairey Merz, C., additional, Negrão, Carlos Eduardo, additional, Rocha Oliveira, Carlos J., additional, Echem, Cinthya, additional, Nobrega, Clara, additional, Camargo, Cristina Pires, additional, Chamie, Daniel, additional, Umpierre, Daniel, additional, Fernandes, Denise C., additional, Favarato, Desidério, additional, de Oliveira, Edilamar Menezes, additional, Rodrigues, Elaine Guadelupe, additional, Hojaij, Elaine Marques, additional, Akamine, Eliana Hiromi, additional, Bouskela, Eliete, additional, Haas, Elisa Alberton, additional, Ros, Emilio, additional, de Paula, Erich Vinicius, additional, Svensjö, Erik, additional, Jones, Erika, additional, Vanderlinde, Fabiano, additional, Mónica, Fabiola Zakia, additional, Borges, Fernanda Fatureto, additional, Consolim-Colombo, Fernanda Marciano, additional, Roque, Fernanda Roberta, additional, Bacal, Fernando, additional, Fonseca, Francisco Antonio Helfenstein, additional, Laurindo, Francisco R.M., additional, Lorenzi-Filho, Geraldo, additional, Sigal, Gilbert Alexandre, additional, De Nucci, Gilberto, additional, Garcia-Cardeña, Guillermo, additional, Oliveira de Paula, Gustavo Henrique, additional, Araújo, Haniel Alves, additional, Júnior, Heitor Moreno, additional, de Oliveira, Helena Coutinho Franco, additional, Castillo, Hozana A., additional, Monteiro, Hugo P., additional, de Campos, Iáscara Wozniak, additional, Aprahamian, Ivan, additional, Eduardo Sousa, J., additional, Ribamar Costa, J., additional, Wei, Janet, additional, Maughan, Jenna, additional, Merino, Jordi, additional, Krieger, José Eduardo, additional, Santos, José Eduardo Tanus dos, additional, de Lima, Jose Jayme Galvão, additional, Júnior, José Leudo Xavier, additional, Neto, José Rocha Faria, additional, Xavier-Neto, José, additional, Annichino-Bizzacchi, Joyce M., additional, Yugar-Toledo, Juan Carlos, additional, Tavares, Juliana Carvalho, additional, Marchini, Julio Flavio, additional, Katayama, Keyla Yukari, additional, Tanaka, Leonardo Y., additional, Colli, Lucas Giglio, additional, Drager, Luciano F., additional, Gowdak, Luís Henrique Wolff, additional, Bortolotto, Luiz Aparecido, additional, Liberman, Marcel, additional, Muscará, Marcelo Nicolás, additional, Nishiyama, Marcelo, additional, Zugaib, Marcelo, additional, Saffi, Marco Aurélio Lumertz, additional, Izar, Maria Cristina O., additional, de Carvalho, Maria Helena Catelli, additional, Alves, Maria Janieire de Nazaré Nunes, additional, Lavrador, Maria Silvia Ferrari, additional, Albuquerque, Maria Theresa O.M., additional, Clavé, Mariana Meira, additional, Moreira, Marina Beltrami, additional, Biella, Marina Maria, additional, Saad, Mario J.A., additional, Curcio, Marli F., additional, Wajngarten, Mauricio, additional, Gagliani, Mayra Luciana, additional, Andrades, Michael, additional, Afonso, Milessa Silva, additional, Carvalho, Murilo, additional, Clausell, Nadine, additional, Stolf, Noedir Antonio Groppo, additional, Berwanger, Otavio, additional, Leite, Paulo Ferreira, additional, Dourado, Paulo Magno Martins, additional, Evora, Paulo Roberto B., additional, Lemos, Pedro A., additional, Libby, Peter, additional, Shah, Prediman K., additional, da Luz, Protásio Lemos, additional, Mehta, Puja, additional, Maranhão, Raul Cavalcante, additional, Lacchini, Riccardo, additional, Kones, Richard, additional, Tostes, Rita C., additional, Borges, Roberta Eller, additional, Machado, Roberta Marcondes, additional, Giraldez, Roberto Rocha C.V., additional, Santos, Robson Augusto Souza dos, additional, Modolo, Rodrigo, additional, Gemperli, Rolf, additional, Francisco, Rossana Pulcineli Vieira, additional, Moncada, Salvador, additional, Tobar, Santiago A., additional, Kahhale, Soubhi, additional, Cau, Stefany B.A., additional, Araujo, Thaís L.S., additional, Fernandes, Tiago, additional, da Costa, Tiago Januário, additional, Costa-Hong, Valéria, additional, Esteves, Vinicius, additional, Giraldez, Viviane Zorzanelli Rocha, additional, Batista, Wagner Luiz, additional, and Sampaio, Walkyria Oliveira, additional

Published
2018
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6. Organic fertilization to attenuate water salinity effect on papaya growth

Author

Sousa, Mônica S. da S., Lima, Vera L. A. de, Brito, Marcos E. B., Silva, Luderlândio de A., Moreira, Rômulo C. L., and Oliveira, Carlos J. A.

Subjects
Carica papaya, saline stress, organic matter, estresse salino, matéria orgânica
Abstract

The salinity of water and soil reduces the growth and production of crops, especially the fruit trees, such as papaya. Thus, it is necessary to obtain management alternatives for cultivation under these conditions. Therefore, the objective of this study was to evaluate the growth and phytomass of papaya cultivated under irrigation with saline water and organic fertilization. An experiment was set up using a randomized block design, with the treatments distributed in a 5 x 2 factorial scheme, consisting of five levels of salinity of irrigation water (0.6, 1.2, 1.8, 2.4 and 3.0 dS m-1) and two levels of organic fertilization (10 and 20 L of bovine manure per plant), with three replications, totaling thirty experimental plots. Growth variables of papaya were evaluated. Papaya plants were negatively affected by irrigation water salinity, with a greater effect on the number of leaves and on dry phytomass of leaves, with no effect of bovine manure levels. RESUMO A salinidade da água e do solo reduz o crescimento e a produção de culturas, em especial às fruteiras, como o mamoeiro, sendo necessário obter alternativas de manejo que viabilizem o cultivo sob tais condições. Assim, objetivou-se, com este estudo, avaliar o crescimento e fitomassa do mamoeiro cultivado sob irrigação com águas salinizadas e adubação orgânica. Usou-se o delineamento de blocos casualizados, com os tratamentos distribuídos em esquema fatorial, 5 x 2, constituídos de cinco níveis de salinidade da água de irrigação (0,6; 1,2; 1,8; 2,4 e 3,0 dS m-1) e dois níveis de adubação orgânica (10 e 20 L de esterco bovino por planta), com três repetições, totalizando trinta parcelas experimentais. Foram avaliadas variáveis de crescimento do mamoeiro. As plantas de mamoeiro foram afetadas negativamente pela salinidade da água de irrigação, com maior efeito no número de folhas e na massa seca das folhas, não havendo efeito dos níveis de esterco bovino.

Published
2019

9. Organic fertilization to attenuate water salinity effect on papaya growth.

Author

da S. Sousa, Mônica S., de Lima, Vera L. A., Brito, Marcos E. B., de A. Silva, Luderlândio, Moreira, Rômulo C. L., and Oliveira, Carlos J. A.

Subjects
SALINITY, PAPAYA, AGRICULTURAL productivity, IRRIGATION water, MANURES
Abstract

Copyright of Revista Brasileira de Engenharia Agricola e Ambiental - Agriambi is the property of Revista Brasileira de Engenharia Agricola e Ambiental and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2019
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10. Space-time variations of suspended material in the Sinnamary estuary, French Guiana: influence of Petit Saut electric dam

Author

Oliveira, Carlos J. Maia de and Clavier, Jacques

Subjects
Chlorophyll, Guiana Francesa, Salinity, Clorofila, Ciclo de maré, Tidal cyclo, Estuary, French Guyana, Estuário, Material em suspensão, Suspended matter, salinidade
Abstract

The coast of Prench Guiana is subjected to the Amazon dispersal system, which is influenced by oceanic currents and trade winds ruled by the position of the Intertropical Convergence Zone. The Sinnamary is one of the major French Guiana rivers. Since 1994, the hydroelectric dam of "Petit Saut" has modified the hydrological regime and the ecological functioning of the estuary. Variations in suspended material (organic and inorganic) concentr&tions, and parllffieters such as salinity, temperature, dissolved oxygen and chlorophyll has been foUowed up trom measurement carried out between December 1996 and February 1998 in the estuary. The load varied seasonally and according to the tide. To establish space-time variability, three. variation factofs (depth, time and tidal variation) have been tested. The effects were significant for síllinity, chlorophyll and the total particulate matter load. Suspended material is four times higher near the bQttom than in the surface, with a 13 % organic matter percentage. Net total particulate material exportation was estimated to 0,05x10(6) t.y-1 for Sinnamary. Modifications of hyçlrological parameters related to petit Saut hydroelectric dam operation mainly affect sediment transport, salinity and oxygen concentration. Significant biological effects are observed in the estuary. O litoral da Guiana Francesa sotre a influência do sistema de dispersão de sedimentos do rio Amazonas, sob ação dos Alísios, das correntes e da posição da Zona Intertropical de Convergência. A partir de 1994, o rio Sinnamary foi modificado com a construção da bmagem hidroelétrica de IIPetit Saut". A variação das concentrações de materiais em suspensão (orgânico e inorgânico) e a dos parâmetros tais como salinidade, temperatura, oxigênio dissolvido e clorofila foram estudados entre dezembro 1996 e fevereiro 1998, em seu estuário. Os parâmetros variaram segundo a hora da maré e a estação, permitindo visualizar sua variabilidade espaço-temporal: 3 fatores (níveis, datas e marés) foram testados. Esses efeitos revelaram-se significativos para a salinidade, clorofila e seston. A concentração dos materiais em suspensão (MES) é 4 vezes maior no fundo em relação à superficie, sendo o total constituído de 13 % orgânico. Estitna-se a O,05x10(6) t.ano-1 o total de MES que foram exportados pelo Sinnamary. As modificações dos parâmetros hidrológicos ligadas ao funcionamento da barragem hidroelétrica de Petit Saut afetam o transporte de sedimentos, a salinidade e a concentração do oxigênio. Observou-se significativos efeitos biológicos no seu estuário.

Published
2000

12. Nitric oxide and cGMP activate the Ras-MAP kinase pathway-stimulating protein tyrosine phosphorylation in rabbit aortic endothelial cells

Author

Oliveira, Carlos J. R., Schindler, Fernanda, Ventura, Armando M., Morais, Miriam S., Arai, Roberto J., Debbas, Victor, Stern, Arnold, and Monteiro, Hugo P.

Subjects
*FREE radicals, *NITRIC oxide, *TRANSDUCERS, *PHOSPHORYLATION
Abstract

The free radical nitric oxide is a very effective signal transducer, stimulating the enzyme guanylyl cyclase, the oncoprotein p21Ras, and protein tyrosine phosphorylation. In the present study using rabbit aortic endothelial cells (RAEC), it is demonstrated that the nitric-oxide-generating substances sodium nitroprusside and S-nitroso-N-acetylpenicillamine, and a stable analog of cyclic GMP, 8BrcGMP stimulate p21Ras activity. Tyrosine phosphorylation of cytosolic proteins was stimulated and intracellular production of cGMP was increased, indicating that the NO/cGMP-stimulated tyrosine phosphorylation-dependent signaling pathway is most likely associated with the activation of p21Ras. NO and cGMP-dependent activation of p21Ras result in binding of the oncoprotein to the Ras-binding domain of Raf-1 kinase. Incubation of RAEC with FPT II, a potent and selective inhibitor of p21Ras, prevented NO-dependent tyrosine phosphorylation. ODQ, a potent inhibitor of the soluble form of guanylyl cyclase, inhibited the signal as well. Conversely, the use of KT5823, a cGMP-dependent protein kinase (PKG) blocker, showed no effect on protein tyrosine phosphorylation. To further establish a role for p21Ras on the NO-stimulated tyrosine phosphorylation-signaling pathway, RAEC were constitutively transfected with a dominant negative mutant of p21Ras, N17Ras. NO and cGMP-stimulated tyrosine phosphorylation were prevented in N17Ras-expressing RAEC exposed to NO donors and 8BrcGMP. The above findings indicate that NO and cGMP stimulation of protein tyrosine phosphorylation requires the participation of fully functional p21Ras. ERK1/2 MAP kinases and their subsequent targets, the transcription factors, lie downstream to Ras, Raf-1 kinase, and MEK. Treatment of both RAEC and mock-transfected RAEC with NO resulted in phosphorylation and activation of ERK1/2. On the other hand, NO did not stimulate phosphorylation of ERK1/2 in N17Ras-expressing RAEC. In addition, PD98059, a MEK inhibitor, prevented overall tyrosine phosphorylation and phosphorylation of ERK1/2. Upstream to Ras ERK1/2 MAP kinases target the EGF receptor. Incubation of RAEC or mock-transfected RAEC with NO donors resulted in activation of the EGF receptor autophosphorylation. PD98059 effectively blocked this activation. EGF receptor autophosphorylation was insensitive to NO stimulation in N17Ras-expressing RAEC. It is concluded that NO and cGMP stimulate a signaling pathway involving p21Ras-Raf-1 kinase-MEK-ERK1/2. Activation of this signaling pathway is connected to NO-stimulated overall tyrosine phosphorylation that also involves the transactivation of the EGF receptor mediated by ERK1/2. [Copyright &y& Elsevier]

Published
2003
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