Proteinase Inhibitors
Mostrando 13-24 de 263 artigos, teses e dissertações.
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13. Action of plant proteinase inhibitors on enzymes of physiopathological importance
Obtidas de sementes leguminosas, várias proteínas inibem proteinases de origem animal, incluindo humanas, e podem ser consideradas para o desenvolvimento de compostos com atividade biológica. Inibidores da família Bowman-Birk e da família Kunitz vegetal tem sido caracterizados em relação a especificidade para proteinase, estrutura primária e sitio re
Anais da Academia Brasileira de Ciências. Publicado em: 2009-09
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14. Controle hormonal da defesa à herbivoria em tomateiro / Hormonal control of herbivory defense in tomato
Even though the cultivation of tomato has a high economical importance, this culture is classified as being of elevated risk because of it common infestation by pests and diseases. This problem makes this culture greatly dependent of the application of several agrochemicals, which leads to increase in cost of production, environmental damages and also facili
Publicado em: 2009
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15. Enzimas de organismos aquÃticos e suas aplicaÃÃes fisiolÃgicas
In the last years, there has been a general increase in human demand for fishery products, followed by a significant increase in the world production of aquatic organisms. The growth of fishery industry generates, as consequence, large amounts of wastes and by-products rich in biomolecules, which are discharged into envioronment. Fishery wastes can be used i
Publicado em: 2009
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16. Efeitos de inibidores de proteinases de soja em organismos não-alvo associados à cultura da cana-de-açúcar / Effects of soybean proteases inhibitors on non-target organisms associated to sugarcane
Genes of plants expressing insect proteinase inhibitors have been introduced into plants for pest control. Proteases inhibitors are present in plant tissues, mainly in seeds, and act in response to predators and pathogens. The Bowman-Birk type and Kunitz type of serine proteases inhibitors (PI) from soybean seeds are been used to increase resistance of sugar
Publicado em: 2008
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17. Induced resistance to the two-spotted mite Tetranychus urticae Koch (Acari, Tetranychidae) in strawberry plants / Resistência induzida ao ácaro rajado Tetranychus urticae Koch (Acari: Tetranychidae) em morangueiro
Plants previously attacked by herbivores may have their defense system activated. The defense forms may occur by different routes. Some of the unleashed routes take place right after the herbivory, when the plant starts responding in an indirect way through the production of volatile substances attractive to natural enemies of the infesting phytophagous. Ano
Publicado em: 2008
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18. Estudo da ação do inibidor de proteinase de Adenanthera pavonina sobre o desenvolvimento e atividade das proteinases intestinais de lagartas de Diatraea suchharalis (FABR., 1794) / Study of proteinase inhibitor action from Adenanthera pavonina on the development and midgut proteinase activities of the Diatraea sachharalis larvae (FABR., 1794)
Phytophatogous insects and other animals use digestive enzymes, such as amylases and proteinases to process the nutrients obtained from the plants necessary for their development. The sugarcane borer Diatraea saccharalis is the major pest of sugarcane in Brazil and other South American countries. Plants synthesize a variety of molecules, including proteinase
Publicado em: 2008
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19. Purification and characterization of the aprotinin from porcine lung. / Purificação e caracterização da aprotinina obtida de pulmão suíno.
Aprotinin, an acid stable serine proteinase inhibitor with a molecular mass of 7 kDa, is used as a reagent or drug. The purification of the aprotinin from porcine lungs was the main objective of this work. Three procedures were used. The first one utilized the trypsin-agarose column. The tangential ultra filtration and trypsin-Sepharose column were used in t
Publicado em: 2008
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20. Efeito de um inibidor de tripsina de sementes de Plathymenia foliolosa sobre o desenvolvimento e atividade enzimatica de Anagasta kuehniella / Effect of a trypsin inhibitor from Plathymenia foliolosa seeds on Anagasta kuehniella development and enzymatic activity
Proteinase inhibitors (PIs) are widely distributed in animals, microorganisms, and plants. Plant PIs are generally small proteins that have mainly been described as occurring in storage tissues, such as tubers and seeds, but they have also been found in the aerial parts of plants, in the leaves, flowers and roots. The possible roles suggested for seed protei
Publicado em: 2008
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21. Caracterização do mecanismo adaptativo de Spodoptera frugiperda aos inibidores de proteinase de plantas / Characterization of the adaptive mechanism of Spodoptera frugiperda to plant proteinase inhibitors
A existência de uma família gênica diversa de serino proteinases em Lepidóptera sugere que essas proteinases desempenham um papel importante na adaptação desses insetos à presença de inibidores de proteinases vegetais. Essas enzimas têm se revelado estarem envolvidas no processo digestivo de larvas de insetos. Larvas de Spodoptera frugiperda foram a
Publicado em: 2007
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22. Avaliação da ação bioinseticida de SBTI e vicilina de Erythrina velutina em enzimas digestivas e membrana peritrófica de larvas de Plodia interpunctella (Lepidoptera: Pyralidae)
Plodia interpunctella (Indian meal moth) is a cosmopolitan pest that attacks not only a wide range of stored grain as well other food products. Due to its economic importance several researches have focused in a method with ability to control this pest with few or no damage to the environment. The study of digestive enzymes inhibitors, lectins and chitin-bin
Publicado em: 2007
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23. Efeito de um inibidor de proteinase serinica sobre o desenvolvimento e atividade enzimatica de Heliothis virescens (Lepidopter: Noctuidae) / Effect of a trypsin inhibitor on the development and enzymatic activity of Heliothis virescens (Lepidoptera: Noctuidae)
Proteinase inhibitor proteins (PIs) are one of the defensive chemicals produced by plants against pests and pathogens. PIs are polypeptides that are able to bind to insect midgut proteolytic enzymes, rendering them inactive by competitive inhibition. This process leads to a limitation of essential amino acids in protein synthesis, and thus, to reduction in g
Publicado em: 2007
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24. Tomato induced defenses mediating ecological interactions among arthropods / Defesas induzidas em plantas de tomate mediando interações ecológicas entre artrópodes
Neste estudo foi investigado o efeito das defesas induzidas diretas e indiretas de plantas de tomate sobre características ecológicas do ácaro vermelho Tetranychus evansi Baker &Pritchard (Acari: Tetranychidae), pelo fato desse ácaro ser praga importante do tomateiro. Também foi avaliado o efeito de defesas indiretas de plantas de tomate, tais como a em
Publicado em: 2007