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| KELECOM,ALPHONSE; REIS,GEISA L.; FEVEREIRO,PAULO C.A.; SILVA,JANIE G.; SANTOS,MARCELO G.; MELLO NETO,CÍCERO B.; GONZALEZ,MARCELO S.; GOUVEA,RITA C.S.; ALMEIDA,GILBERTO S.S.. |
| The fluminense vegetation, more specifically the flora from the Jurubatiba restinga has been investigated by a multidisciplinary team of botanists, chemist, radiobiologist, insect physiologists and geneticist. Vouchers of 564 specimens have been collected, identified, organized in an herbarium, and a database is being build up containing, in addition to classical botanical data, chemical data and information on the potential economic use either for landscape gardening, alternative foods or as medicinal plants. Phytochemical studies of the Guttiferae, Clusia hilariana, yielded oleanolic acid and nemorosone. Their biological activities against the haematophagous insect Rhodnius prolixus vector of Chagas disease have been investigated. Finally, it has been... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Taxonomy; Economic use; Oleanolic acid; Nemorosone; Polonium-210; Biological activities. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000100013 |
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| KELECOM,ALPHONSE. |
| After 40 years of intensive research, chemistry of marine natural products has become a mature field. Since 1995, there are signals of decreased interest in the search of new metabolites from traditional sources such as macroalgae and octocorals, and the number of annual reports on marine sponges stabilized. On the contrary, metabolites from microorganisms is a rapidly growing field, due, at least in part, to the suspicion that a number of metabolites obtained from algae and invertebrates may be produced by associated microorganisms. Studies are concerned with bacteria and fungi, isolated from seawater, sediments, algae, fish and mainly from marine invertebrates such as sponges, mollusks, tunicates, coelenterates and crustaceans. Although it is still to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteria; Fungi; Alkaloids; Despsipeptides; Terpenoids; Acetogenins; Biological activities. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000100012 |
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| FEDER,DENISE; GONZALEZ,MARCELO S.; MELLO,CÍCERO B.; SANTOS,MARCELO G.; ROCHA,LEANDRO; KELECOM,ALPHONSE; FOLLY,EVELIZE. |
| Abstract: As a part of our continuing search for insect and arthropod development regulators from Brazilian restinga vegetation of the Rio de Janeiro State, crude extracts, purified fractions and essential oils were submitted to screening tests seeking for biological activities on the development of the insects Rhodnius prolixus, Dysdercus peruvianus, Oncopeltus fasciatus and Rhipicephalus (Boophilus) microplus. Up to now, 102 secondary metabolites have been detected in the fractions, among them monoterpenes, sesquiterpenes and two triterpenes which were obtained from the species, Eugenia sulcata, Pilocarpus spicatus, Manilkara subsericea, Myrciaria floribunda and Zanthoxylum caribaeum. These secondary plant metabolites are considered of interest for the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arthropods; Essential oil; Green pesticide; Insect pests; Insect vectors; Insect growth regulators. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100626 |
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