Nitrogênio e clorofila em folhas de Plátano D'Angola cultivado em sistemas silvibananeiros.

banana é a fruta mais consumida e exportada do mundo. Cerca de 400 milhões de pessoas dependem da fruta, seja como fonte de renda ou para alimentação. A produção localizada nos países tropicais e subtropicais é destinada principalmente para os mercados internos, com um papel importante na segurança alimentar e nutricional de países subdesenvolvidos

Interceptação da radiação fotossinteticamente ativa e altura de plantas em sistemas silvibananeiros.

O Brasil com uma produção de 6,9 milhões de toneladas é o quinto maior produtor mundial de banana. A área cultivada com a cultura no Brasil está em torno de 500 mil ha, que no cenário mundial só é superada pela Índia, maior produtor mundial e que destina cerca de 709 mil ha à cultura. No estado do Mato Grosso a cultura ocupa cerca de 6,0 mil ha gerando uma produção insuficiente para atender a demanda de consumo da população

Desempenho de espécies florestais em diferentes arranjos de integração lavoura pecuária floresta em Barra-do-Garças, MT.

Nine forest species / genetic materials were evaluated in ten crop-livestock-forest integration arrangements in Barra-do-Garças in the Northeast region of Mato Grosso state. The data were collected in a Technological Reference Unit of Embrapa Installed in partnership with the Agropecuária Fazenda Brasil Group in the year of 2010 and the data evaluated in 2017, with the trees being 76 months of age. Growth and production superiority was observed for the arrangements that used clonal eucalyptus materials

Teor de nitrogênio foliar em plantas madeireiras em consórcio agroflorestal com plátanos.

No planejamento de sistemas agroflorestais (SAFs) com bananeiras e plátanos, a escolha do componente arbóreo deve considerar outros benefícios, além dos produtos madeireiros e não madeireiros. As funções ecológicas que esse componente desempenha no sistema, podem resultar em ganhos econômicos expressivos do SAF diante de uma valoração adequada dos serviços prestados

Aporte de nitrogênio por árvores madeireiras jovens em sistema integrado de produção com plátanos.

Sistemas integrados de produção são alternativas para uma agricultura mais eficiente no uso da terra e promotora de benefícios ambientais e sociais. Os plátanos, em função das suas características, podem ser explorados em associação com outras culturas de interesse econômico, sendo o arranjo produtivo dependente de fatores edafoclimáticos, mercadológicos, culturais etc. Na integração de musáceas com árvores, além dos produtos finais, pode haver outros benefícios para a economia do sistema, como o aporte de nitrogênio (N) pelo uso de leguminosas arbóreas

Kisspeptin antagonists reveal kisspeptin 1 and kisspeptin 2 differential regulation of reproduction in the teleost, Morone saxatilis

The importance of kisspeptin in regulating vertebrate reproduction has been well established, but the exact mechanism continues to unfold. Unlike mammals, many lower vertebrates possess a dual kisspeptin system, Kiss1 and Kiss2. To decipher the roles of the kisspeptins in fish, we identified two potential kisspeptin antagonists, pep 234 and pep 359, by screening analogs for their ability to inactivate striped bass Kiss1 and Kiss2 receptors expressed in COS7 cells. Pep 234 (a mammalian KISS1 antagonist) antagonizes Kiss1r signaling activated by Kiss1 and Kiss2, and pep 359 (a novel analog) antagonizes Kiss2 activation of both receptors. In vitro studies using brain slices demonstrated that only Kiss2 can upregulate the expression of the hypophysiotropic gnrh1, which was subsequently diminished by pep 234 and pep 359. In primary pituitary cell cultures, the two antagonists revealed a complex network of putative endogenous and exogenous regulation by kisspeptin. While both kisspeptins stimulate Fsh expression and secretion, Kiss2 predominately induces Lh secretion. Pep 234 and 359 treatment of spawning males hindered sperm production. This effect was accompanied with decreased brain gnrh1 and gnrh2 mRNA levels and peptide content in the pituitary, and increased levels of pituitary Lh, probably due to attenuation of Lh release. Strikingly, the mRNA levels of arginine-vasotocin, the neurons of which in the preoptic area coexpress kiss2r, were dramatically reduced by the antagonists. Our results demonstrate differential actions of Kiss1 and Kiss2 systems along the hypothalamicpituitary axis and interactions with other neuropeptides, and further reinforce the importance of kisspeptin in the execution of spawning.The National Science Foundation program grant 1147118 and by research award IS-4499-12CR from the United States-Israel Binational Agricultural Research and Development Fund.http://www.biolreprod.org2016-09-30hb2016Mammal Research InstituteZoology and Entomolog

A role of 18F-fluorodeoxyglucose positron emission/computed tomography in a strategy for abdominal wall metastasis of colorectal mucinous adenocarcinoma developed after laparoscopic surgery

Metastasis to the abdominal wall including port sites after laparoscopic surgery for colorectal cancer is rare. Resection of metastatic lesions may lead to greater survival benefit if the abdominal wall metastasis is the only manifestation of recurrent disease. A 57-year-old man, who underwent laparoscopic surgery for advanced mucinous adenocarcinoma of the cecum 6 years prior, developed a nodule in the surgical wound at the lower right abdomen. Although tumor markers were within normal limits, the metastasis to the abdominal wall and abdominal cavity from the previous cecal cancer was suspected. An abdominal computed tomography scan did not provide detective evidence of metastasis. 18F-fluorodeoxyglucose positron emission/computed tomography (18F-FDG PET/CT) was therefore performed, which demonstrated increased 18F-fluorodeoxyglucose uptake (maximum standardized uptake value: 3.1) in the small abdominal wall nodule alone. Histopathological examination of the resected nodule confirmed the diagnosis of metastatic mucinous adenocarcinoma. Prognosis of intestinal mucinous adenocarcinoma is reported to be poorer than that of non-mucinous adenocarcinoma. In conclusion, this case suggests an important role of 18F-FDG PET/CT in early diagnosis and decision-making regarding therapy for recurrent disease in cases where a firm diagnosis of recurrent colorectal cancer is difficult to make