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Sesquiterpene lactones from Perityle emoryi
(1990)
The extract of the aerial parts of Perityle emoryi gave, in addition to seven known sesquiterpene lactones, six new germacranolides and a guaianolide as well as a further thymol derivative together with several known ones ...
Guaianolides and other constituents from Stevia species
(1991)
The investigation of three Stevia species afforded a large variety of known sesquiterpene lactones as well as one new guaianolide, two known longipinene derivatives, two ent-labdanes and several other common compounds. © 1991.
A heliangolide, 3-hydroxyumbelliferone derivatives and diterpenes from Bahia ambrosioides
(1990)
The aerial parts of Bahia ambrosioides afforded several germacranolides and heliangolides one of which has not been reported previously. Furthermore, in addition to widespread compounds, four 3-hydroxyumbelliferone derivatives ...
Seco-labdanes and other constituents fromOphryosporus floribundus
(1990)
The extract of the aerial parts ofO. floribundus afforded in addition to known compounds 17 new diterpenes, including eightseco-ent-labdanes with a very rare carbon skeleton. The structures were elucidated by high field ...
Highly oxygenated furoeremophilane derivatives from Senecio zoellneri
(1991)
The aerial parts of Senecio zoellneri afforded, in addition to known compounds, five oxygenated furoeremophilane derivatives and three seco-furoeremophilanolides, all of which are probably formed by oxidation of ...
Natural sesquiterpene lactones are active against Leishmania mexicana
(2008)
In this paper, the effects of 3 natural sesquiterpene lactones, i.e., helenalin (Hln), mexicanin (Mxc), and dehydroleucodine (DhL), were evaluated using cultured Leishmania mexicana promastigotes. It was observed that the ...
A lux-like quorum sensing system in the extreme acidophile Acidithiobacillus ferrooxidans
(SOCIEDAD BIOLGIA CHILE, 2005)
The genome of the acidophilic, proteobacterium Acidithiobacillus ferrooxidans, contains linked but divergently oriented genes, termed afeI and afeR, whose predicted protein products are significantly similar to the LuxI ...
Obtencion y separacion de giberelinas lactonicas producidas pop el hongo gibberella fujikuroi para usarlas como estandares cromatograficos Obtencion y separacion de giberelinas lactonicas producidas pop el hongo gibberella fujikuroi para usarlas como esta
(2001)
A simple separation method to obtain gibberellin standards is described.This includes isolation of the lactonic gibberellins GAg, GA4, GAy and GAgfrom Gibberella fujikuroi cultures by Chromatographie procedures and their ...
Inter-regional variation on leaf surface defenses in native and non-native Centaurea solstitialis plants
(Elsevier, 2015)
Plant chemical defenses can be qualitative (toxins) to face generalist herbivores and quantitative (digestibility reducers) to specialists. Trichomes can produce chemicals, but also acts as a quantitative defense and in ...
Biofilm formation, communication and interactions of leaching bacteria during colonization of pyrite and sulfur surfaces
(Elsevier, 2014)
Bioleaching of metal sulfides is an interfacial process where biofilm formation is considered to be important in the initial steps of this process.
Among the factors regulating biofilm formation, molecular cell-to-cell ...