Consulta: subjectFacets:"Chemotaxonomy"
Registros recuperados: 4
Data/hora: 09/06/2024 06:45:05

The genus &lt;i&gt;Batzella&lt;/i&gt;: a chemosystematic problem
Provedor de dados: 27
Autores: Van Soest, R.W.M.; Braekman, J.C.; Faulkner, D.J.; Hajdu, E.; Harper, M.K.; Vacelet, J.
Biogenetically unrelated cyclic guanidine alkaloids and pyrroloquinoline alkaloids have been reported from sponges assigned to the genus &lt;i&gt;Batzella&lt;/i&gt;. These sponges have been assigned to this genus because of their possession of a simple complement of thin strongyles in irregular plumoreticulate arrangement. Cyclic guanidine alkaloids were first reported from an alleged axinellid species from the Caribbean, &lt;i&gt;Ptilocaulis&lt;/i&gt; aff. &lt;i&gt;P. spiculifer&lt;/i&gt;, and subsequently from a second Carribean specimen identified as &lt;i&gt;Ptilocaulis spiculifer&lt;/i&gt; and at the same time from a Red Sea poecilosclerid, &lt;i&gt;Hemimycale&lt;/i&gt; sp. Closely related compounds were described from a Caribbean specimen identified...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alkaloids; Chemotaxonomy; Batzella; Poecilosclerida.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303650.pdf

Microbial control of the culture of &lt;i&gt;Artemia&lt;/i&gt; juveniles through preemptive colonization by selected bacterial strains
Provedor de dados: 27
Autores: Verschuere, L.; Rombaut, G.; Huys, G.; Dhont, J.; Sorgeloos, P.; Verstraete, W.
The use of juvenile &lt;i&gt;Artemia&lt;/i&gt; as feed in aquaculture and in the pet shop industry has been getting more attention during the last decade. In this study, the use of selected bacterial strains to improve the nutritional value of dry food for &lt;i&gt;Artemia&lt;/i&gt; juveniles and to obtain control of the associated microbial community was examined. Nine bacterial strains were selected based on their positive effects on survival and/or growth of &lt;i&gt;Artemia&lt;/i&gt; juveniles under monoxenic culture conditions, while other strains caused no significant effect, significantly lower rates of survival and/or growth, or even total mortality of the &lt;i&gt;Artemia&lt;/i&gt; . The nine selected strains were used to preemptively colonize the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Biological control; Brine shrimp culture; Chemotaxonomy; Colonization; Feeds; Interspecific relationships; Nutrition; Polyculture; Survival; Artemia.
Ano: 1999
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4039

Foliar flavonoids of nine species of Bauhinia
Provedor de dados: 88
Autores: SALATINO,ANTONIO; BLATT,CECÍLIA T.T.; SANTOS,DÉBORAH Y.A.C. DOS; VAZ,ANGELA M.S.F.
Foliar flavonoids of nine species of Bauhinia were isolated and identified. All the compounds correspond to glycosides derived from kaempferol, quercetin, isorhamnetin and myricetin. Derivatives of the latter aglyconhe seem to be rare in Bauhinia. Derivatives of isorhamnetin are commonly found in species of subgenus Bauhinia and were not detected in the two species of subgenus Phanera. Flavonoid patterns of species of the former subgenus are in general more complex than those of the latter.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bauhinia; Caesalpinioideae; Flavonoids; Chemotaxonomy.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000100003

n-alkanes from Paepalanthus Mart. species (Eriocaulaceae)
Provedor de dados: 39
Autores: Santos,Lourdes Campaner dos; Dokkedal,Anne L.; Sannomiya,Miriam; Soares,Maria Carla Piza; Vilegas,Wagner.
This work presents the study of nonpolar compounds from plants belonging to the genus Paepalanthus Mart. (Eriocaulaceae). Long-chain linear aliphatic hydrocarbons were identified by GC-FID and GC-MS. The results indicate that Paepalanthus subg. Platycaulon species present a very homogenous profile, with carbon chains of n-alkanes ranging from C25 to C31, most samples presenting higher frequencies of C27 and C29 homologues. Paepalanthus subg. Paepalocephalus species may be distinguished from one another by the distribution of main n-alkanes. P. macrocephalus, subsect. Aphorocaulon species, presents alkanes with odd-carbon numbers and P. denudatus and P. polyanthus, Actinocephalus species, present alkanes with quite distinctive profiles, with many shorter...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paepalanthus; N-alkanes; GC-FID; GC-MS; Chemotaxonomy.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062005000400007