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Finatto,Taciane; Viana,Vívian Ebeling; Woyann,Leomar Guilherme; Busanello,Carlos; Maia,Luciano Carlos da; Oliveira,Antonio Costa de. |
Abstract WRKY transcription factors (TFs) are responsible for the regulation of genes responsive to many plant growth and developmental cues, as well as to biotic and abiotic stresses. The modulation of gene expression by WRKY proteins primarily occurs by DNA binding at specific cis-regulatory elements, the W-box elements, which are short sequences located in the promoter region of certain genes. In addition, their action can occur through interaction with other TFs and the cellular transcription machinery. The current genome sequences available reveal a relatively large number of WRKY genes, reaching hundreds of copies. Recently, functional genomics studies in model plants have enabled the identification of function and mechanism of action of several WRKY... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Transcriptional regulation; Signaling; Abscisic acid; Kinases; Stresses. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000400533 |
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Loubersac, Lionel; Dahl, Arthur; Collote, Pascal; Lemaire, Olivier; D'Ozouville, Laurent. |
Damage from tropical cyclones can have major consequences for coral reef structure and ecology, as well as for human communities and human uses of coral reef resources. Remote sensing with high resolution multispectral satellite images can be used to asses large scale cyclone damages on coral reef areas. SPOT images of the almost atoll of AITUTAKI (Cook Islands) taken in june 1986 and february 1987 after the passage of Cyclone Sally near the island in january, were transformed and subjected to a textural analysis, and then compared to asses damage on the reefs and lagoon.New shallow sand and rubble deposits showed increased reflectance, while lower reflectance seemed associated with damage to reef structure, scouring in the lagoon, deposits of terrestrial... |
Tipo: Text |
Palavras-chave: ICRS 6; Remote sensing; Reflectance; Stresses; Cyclones; Extreme events; Coral reef; Lagoon; Natural System; External Threats & Opportunities. |
Ano: 1988 |
URL: http://archimer.ifremer.fr/doc/00143/25380/23518.pdf |
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Silva,Evandro P. da; Silva,Fábio M. da; Andrade,Ednilton T. de; Magalhães,Ricardo R.. |
ABSTRACT Coffee harvesters are subject to stresses and vibrations in their structure, originating from engines and harvesting system. These structures must be designed to avoid rupturing of the components due to fragility of the materials, inadequate geometries, or the phenomenon of resonance, which increases the displacements/deformations of the components. In this scenario, the main objective of this study is to analyse the results of stresses and displacements from two static simulations and to present results of natural vibration frequencies from two modal simulations in a self-propelled coffee harvester. For this purpose, 20 modal shapes were generated, considering coffee harvester reservoir as empty and full. The simulations were carried out using... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Design; Vibration; Resonance; Stresses; Displacements. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000700511 |
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