Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Chemotaxonomic markers

Iwasina, I. et al., New and rare flavonol glycosides from Asplenium trichomanes-ramosum as stable chemotaxonomic markers, Biochem. Syst. Ecol, 23, 283, 1995. [Pg.803]

The distribution of iridoids in the Eudicotyledoneae has potential usefulness in the taxonomy of the families, related to their presence in a restricted number of families. Iridoid are considered good chemotaxonomic markers of different taxononomic groups, and can be used, in combination with order, tribe and family, to establish the phylogenetic... [Pg.150]

The lack of or the insufficience of chromatographic data (RI, Rt) and reference compounds for most of the labdanes [159], present basic problems in studies concerning the qualitative and quantitative analysis of plant extracts using GC or/and GC-MS analysis. Also their use as chemotaxonomic markers within species where they occur is limited. GC... [Pg.256]

The exclusive occurrence of a specific metabolite may, upon close chemical and taxonomic examination, be proposed as a chemotaxonomic marker. Such is the case with aaptamine for the family Suberitidae (order Hadromerida).71... [Pg.13]

Van Soest, R. W. M., Fusetani, N., and Andersen, R. J., Straight-chain acetylenes as chemotaxonomic markers of the marine Haplosclerida, in Sponge Sciences Multidisciplinary Perspectives, Watanabe, Y. and Fusetani, N., Eds., Springer-Verlag, Tokyo, 1998, 3. [Pg.146]

Stonik, V. A. and Elyakov, G. B., Secondary metabolites from echinoderms as chemotaxonomic markers, in Bioorganic Marine Chemistry, Scheuer, P. J., Ed., Springer-Verlag, Berlin, 2, 43, 1988. [Pg.150]

Compounds obtained from natural sources have always contributed to the development of small molecules for various targets in the history of medicinal chemistry. Recently, several small molecules derived from natural products have been shown to possess Icmt inhibitory activity [72,73]. This effort to discover other natural product inhibitors of Icmt utilized a HTS approach. Of the approximately 6 x 10 extracts screened, the extract from the order Verongida displayed Icmt inhibition. A bromotyrosine-derived chemotaxonomic marker characterizes marine sponges in this order. The extract from Pseudoceratina sp. contained a compound with a bromotyrosyl-spermine-bromotyrosyl sequence, named spermatinamine... [Pg.223]

In the 1950s betalains were shown to be useful as chemotaxonomic markers for members of the Caryophyllales (Caryophyllidae), even before their actual structures were known ( W-anthocyanins ) (35,38). These pigments have since... [Pg.35]

Drimane, farnesane, glutinopallane, protoilludane, isolactarane, and guaiane sesquiterpenes have been isolated so far in a few Lactarius species therefore, they may be considered chemotaxonomic markers. By contrast, large quantities of marasmane, lactarane and secolactarane metabolites occur in almost all Sections, as reported in Table 24. [Pg.154]

Gurevich, L.S. Psilocybin and muscarin as possible chemotaxonomic markers of the genus Inocybe (Fr.)Fr.(Cortinariaceae)(ms.) cit.in Chemical Abstracts, 118, 35586c. [Pg.125]

The essential oils from a number of Hypericum species proved to be useful chemotaxonomic markers for the genus [17-19]. Mathis and... [Pg.605]

Oleuropein and its metabolites are terpenoids present in all parts of plant and represent the chemotaxonomic markers of O. europaea. Tyrosol, hydroxy-tyrosol and related compounds represent the main characteristic phenolic fraction of O. europaea and are recognised as very powerful anti-oxidising agents. [Pg.859]

We consider comoside 11 to represent, together with oleuropein 1, the chemotaxonomic marker of oleaceae, being present in several species and always constituting the main glucosidic component [7],... [Pg.866]

The group is biosynthetically homogeneous, and is represented by the number of orders and plant families within the dicotyledons. They are elaborated preferentially by gamopetalous plants e.g. Dispsacales, Gentianales, Lamiales, Scrophulariales, which makes them interesting chemotaxonomic markers [1,2]. [Pg.247]

Elvert, M., Boetius, A., Knittel, K. and Jorgensen, B.B., 2003. Characterization of specific membrane fatty acids as chemotaxonomic markers for sulfate-reducing bacteria involved in anaerobic oxidation of methane. Geomicrobiol. J., 20 403-419. [Pg.163]

Stermitz et al. have recently reviewed the chemotaxonomy and the systematization of Papaver and Argemone plants (36, 833). They have also pointed out the characteristic features of the individual genera and sections from the viewpoint of the alkaloids. On the basis of the contained alkaloids, they have tried to differentiate the A. subfusiformis taxa from A. poly-anthemos (Scheme 20). According to these authors, the benzo-phenanthridine alkaloids (including the N-nor derivatives) may not be significant chemotaxonomic markers because they are formed in callus tissues (269). The alkaloids contained in the seeds of A. mexicana (grown in the U.S.S.R. and in Vietnam) have been studied (834). [Pg.513]

A preliminary chromatographic analysis of phytochemical constituents of selected species the three subfamilies in the Dipterocarpaceae was reported in 1977 [5], and indicated the presence of triterpenoids similar to dipterocarpol as constituents common to the three subfamilies. It was recommended that further studies on phenolic compounds such as flavonoids, which might be used as chemotaxonomic markers, should be carried out [5]. The present chapter focuses on the biologically active constituents of the plants in the family Dipterocarpaceae. [Pg.533]

Teucrium species are a rich source of neo-clerodane diterpenes which can be used as chemotaxonomic markers for the genus. TTiey possess therapeutic properties and are used as folk medicine in many parts of the world. [Pg.591]


See other pages where Chemotaxonomic markers is mentioned: [Pg.935]    [Pg.39]    [Pg.392]    [Pg.235]    [Pg.246]    [Pg.5]    [Pg.12]    [Pg.16]    [Pg.25]    [Pg.21]    [Pg.143]    [Pg.188]    [Pg.414]    [Pg.222]    [Pg.329]    [Pg.702]    [Pg.702]    [Pg.637]    [Pg.241]    [Pg.906]    [Pg.366]    [Pg.1128]    [Pg.43]    [Pg.1033]    [Pg.555]    [Pg.555]    [Pg.591]    [Pg.651]    [Pg.411]   
See also in sourсe #XX -- [ Pg.26 , Pg.1128 ]

See also in sourсe #XX -- [ Pg.1128 ]

See also in sourсe #XX -- [ Pg.80 ]




SEARCH



© 2024 chempedia.info