7 documents found, page 1 of 1
Termiticidal lectins from Myracrodruon urundeuva (Anacardiaceae) cause midgut d...
Lima, Thâmarah A.; Fernandes, Kenner M.; Oliveira, Ana Patrícia S.; Dornelles, Leonardo P.; Martins, Gustavo F.; Napoleão, Thiago H.Myracrodruon urundeuva is a hardwood tree, and its bark, heartwood and leaf contain lectins (MuBL, MuHL and MuLL respectively) with termiticidal activity against Nasutitermes corniger. In this work, the effects of these lectins on the midgut of N. corniger workers were evaluated. The insects were supplied with an artificial diet containing the lectins at their respective LC 50 (previously determined). At 48 h a...
Fatty acid-rich volatile oil from Syagrus coronata seeds has larvicidal and ovi...
Marriel, Nadja B.; Santos, Leilane M. M.; Nascimento, Jéssica S.; Santos, Mirela A. G.; Bezerra-Silva, Patrícia C.; Rocha, Suyana K. L.This work evaluated the potential of a volatile oil extracted from Syagrus coronata seeds for the control of Aedes aegypti. The oil was extracted by hydrodistillation, characterized by gas chromatography-mass spectrometry (GC-MS), and evaluated for larvicidal and ovicidal activities, as well as for influence on the choice of oviposition site by females. The effects of the oil on swimming activity of larvae were...
Moringa oleifera: Resource management and multiuse life tree
Santos, Andréa F. S.; Luz, Luciana A.; Pontual, Emmanuel V.; Napoleão, Thiago H.; Paiva, Patrícia M. G.; Coelho, Luana C. B. B.Moringa oleifera Lamarck (Moringaceae family) is a plant native from the Western and sub-Himalayan parts of Northwest India, Pakistan and Afghanistan. This species is widely cultivated across Africa, South-East Asia, Arabia, South America and Caribbean Islands. M. oleifera culture is also being distributed in the Semi-Arid Northeast of Brazil. It is a multiuse life tree with great environmental economic importa...
Strategies to obtain lectins from distinct sources
Santos, Andréa F. S.; Napoleão, Thiago H.; Bezerra, Rosiely F.; Carvalho, Elba V. M. M.; Correia, Maria T. S.; Paiva, Patrícia M. G.Lectins are proteins or glycoproteins that bind specifically to mono, oligo or polysaccharides. They are important biotechnological tools and have been isolated from microorganisms, higher fungus, lichens, plants and animals. Different purification strategies are used to obtain pure lectins. It is important to approach the principles of each method to be used in protein purification before start to work in this...
Lectins : important tools for biocontrol of Fusarium species
Santos, Andréa F. S.; Napoleão, Thiago H.; Paiva, Patrícia M. G.; Coelho, Luana C. B. B.Lectins are proteins from non-immune origin, containing two or more binding sites to mono or oligosaccharides. Plant lectins, found in different plant tissues, show a marked heterogeneity with respect to their molecular structure and sugar-binding specificity. Fungi are frequently pathogens of cultivated plant species representing one of the main causes of crop losses. Growth of fungi has been considered a majo...
Protein purification by affinity chromatography
Coelho, L. C. B. B.; Santos, Andréa F. S.; Napoleão, Thiago H.; Correia, M. T. S.; Paiva, Patrícia M. G.
Coagulant and antibacterial activities of the water-soluble seed lectin from Mo...
Ferreira, R. S.; Napoleão, Thiago H.; Santos, Andréa F. S.; Sá, R. A.; Cunha, M. G. C.; Morais, M. M. C.; Lucca, R. A. Silva; Oliva, M. L. V.Aims: The aim of this work was to analyse the coagulant and antibacterial activities of lectin isolated from Moringa oleifera seeds that are used for water treatment. Methods and Results: The water-soluble M. oleifera lectin (WSMoL) was separated from nonhemagglutinating components (NHC) by chitin chromatography. WSMoL fluorescence spectrum was not altered in the presence of ions that are often present in high...