Constituents of two Flourensia species

Uriburu, María L.; Fuente, Juana R. de la; Palermo, Jorge Alejandro; Gil, Roberto R.; Sosa, Virginia E.

doi:10.1016/j.phytochem.2004.05.009

Cited by 15 publications

(12 citation statements)

References 26 publications

(26 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Se identifi caron los componentes del aceite esencial de F. oolepis S. F. Blake (Priotti et al 1997;García et al 2007;Díaz Nepal et al 2009) y se comprobó su efecto bactericida (Carrizo Flores et al 2005;Vaca Ruiz et al 2006;Joray et al 2011), insecticida (García et al 2007), antifúngico (Carpinella et al 2010) y protector contra úlceras gástricas (Donadel et al 2005). Además, se estudiaron los compuestos químicos en F. campestris Griseb., F. riparia Griseb., F. fi ebrigii S. F. Blake (Uriburu et al 2004(Uriburu et al , 2005(Uriburu et al , 2007, F. blakeana Dillon (Pacciaroni et al 2009), F. heterolepis S. F. Blake (Bohlmann & Jakupovic 1979) y F. cernua DC. (Rao et al 1970;Estell et al 1996;Tellez et al 1997).…”

Section: Introductionunclassified

Exomorfología y anatomía de órganos vegetativos aéreos en especies de Flourensia DC. (Asteraceae) con importancia fitoquímica

Delbón

Cosa

Bernardello³

2012

Acta Bot. Bras.

View full text Add to dashboard Cite

Blake y F. tortuosa Griseb., especies endémicas del centro de Argentina. Se observó que todas son similares en cuanto a la anatomía de hoja y tallo. En cuanto al estudio de la epidermis foliar, se concluye que es posible diferenciar las especies teniendo en cuenta la frecuencia estomática y la presencia de tricomas. Finalmente, las diferencias más notables se encontraron en la exomorfología foliar ya que se observó una gran variación en cuanto a la forma de las hojas y tamaño de las láminas y pecíolos. Con respecto a las estructuras secretoras, se encontraron tricomas y conductos secretores esquizógenos en las hojas y los tallos de todas las especies, las cuales serían responsables de la producción y secreción de las resinas. ABSTRACT(Exomorphology and anatomy of vegetative organs in Flourensia species (Asteraceae) with phytochemical importance). Th e genus Flourensia DC. is American and comprises 32 species. Th ey are resiniferous shrubs used in folk medicine. As they have potential economic value, its chemical compounds have been characterized and some possible uses identifi ed. In this work, the exomorphology and anatomy of vegetative organs of F. hirta S. F. Blake, F. leptopoda S. F. Blake, F. niederleinii S. F. Blake and F. tortuosa Griseb., endemic species from central Argentina, have been studied. All species are similar in leaf and stem anatomy. Regarding the epidermis, it is possible to diff erentiate the species according to the stomatal frequency and the presence of trichomes. Finally, the most remarkable diff erences were found in leaf exomorphology, since there was a large variation in shape and size of blades and petioles. Concerning the secretory structures, trichomes and secretory ducts were found in the leaves and stems of all species, which would be responsible for the production and secretion of the resins.

show abstract

Section: Introductionunclassified

Exomorfología y anatomía de órganos vegetativos aéreos en especies de Flourensia DC. (Asteraceae) con importancia fitoquímica

Delbón

Cosa

Bernardello³

2012

Acta Bot. Bras.

View full text Add to dashboard Cite

show abstract

“…The 4‐hydroxyacetophenone derivatives have been proposed as precursors of benzofurans, widely distributed in Flourensia , including F . campestris , and other Asteraceae . Furthermore, the notion of a chemotaxonomic link is strengthened by results found in Flourensia species that belong to the same South‐American linage as that in F .…”

Section: Resultsmentioning

confidence: 91%

“…campestris , such as the presence of 4‐hydroxyacetophenone in leaves of F . riparia . Taking into account the antimicrobial properties of acetophenone derivatives, the occurrence of these precursors in GTs strongly suggests their functional roles against biotic stress.…”

Section: Resultsmentioning

confidence: 99%

“…The 4-hydroxyacetophenone derivatives have been proposed as precursors of benzofurans, widely distributed in Flourensia, including F. campestris, and other Asteraceae. [3][4] [23] Furthermore, the notion of a chemotaxonomic link is strengthened by results found in Flourensia species that belong to the same South-American linage as that in F. campestris, [24] such as the presence of 4-hydroxyacetophenone in leaves of F. riparia. [3] Taking into account the antimicrobial properties of acetophenone derivatives, [25] the occurrence of these precursors in GTs strongly suggests their functional roles against biotic stress.…”

Section: (-)-Haa In Gtsmentioning

confidence: 99%

“…(Asteraceae, subfamily Asteroideae, tribe Heliantheae) is an endemic resinous species from the center of Argentina which produces a high complex mixture of secondary metabolites. Some of these metabolites have been chemically and/or biologically characterized from different plant aerial organs, including the phytotoxic sesquiterpene (–)‐hamanasic acid A ((–)‐HAA; 8‐hydroxybisabola‐1,12‐diene‐7‐carboxylic acid), volatile components, quaternary ammonium compounds (QACs) ‐glycine betaine‐, and benzofuran and flavonoid derivatives . However, no previous studies have reported the exact localization of metabolites in Flourensia .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Volatiles and Nonvolatiles in Flourensia campestris Griseb. (Asteraceae), How Much Do Capitate Glandular Trichomes Matter?

Piazza

López

Silva

et al. 2018

Chemistry & Biodiversity

View full text Add to dashboard Cite

The distribution and ultrastructure of capitate glandular trichomes (GTs) in Flourensia species (Asteraceae) have been recently elucidated, but their metabolic activity and potential biological function remain unexplored. Selective nonvolatile metabolites from isolated GTs were strikingly similar to those found on leaf surfaces. The phytotoxic allelochemical sesquiterpene (-)-hamanasic acid A ((-)-HAA) was the major constituent (ca. 40%) in GTs. Although GTs are quaternary ammonium compounds (QACs)-accumulating species, glycine betaine was not found in GTs; it was only present in the leaf mesophyll. Two (-)-HAA accompanying surface secreted products: compounds 4-hydroxyacetophenone (piceol; 1) and 2-hydroxy-5-methoxyacetophenone (2), which were isolated and fully characterized (GC/MS, NMR), were present in the volatiles found in GTs. The essential oils of fresh leaves revealed ca. 33% monoterpenes, 26% hydrocarbon- and 30% oxygenated sesquiterpenes, most of them related to cadinene and bisabolene derivatives. Present results suggest a main role of GTs in determining the volatile and nonvolatile composition of F. campestris leaves. Based on the known activities of the compounds identified, it can be suggested that GTs in F. campestris would play key ecological functions in plant-pathogen and plant-plant interactions. In addition, the strikingly high contribution of compounds derived from cadinene and bisabolene pathways, highlights the potential of this species as a source of high-valued bioproducts.

show abstract

Chemistry and Biology of the GenusFlourensia(Asteraceae)

Rios

2015

Chemistry & Biodiversity

View full text Add to dashboard Cite

Flourensia species are dominant plants that are adapted to semidesertic and desertic regions. It is believed that they are successful plants because they employ several protection mechanisms, including the formation of a waxy film on their aerial parts to protect them from dehydration. This waxy film contains chemical compounds that are capable of inhibiting the growth of other plants and of acting as allelopathic and herbicidal agents and as germination inhibitors. These plants also limit herbivory, and they exhibit insecticidal, insect antifeedant, antibacterial, antifungal, antialgal, and antitermite activities. Sesquiterpenes, flavonoids, benzofurans, chromenes, coumarins, lupan triterpenes, aliphatic lactones, and aromatic and acetilenic compounds have all been isolated from the organic extracts of Flourensia species. Monoterpenes, sesquiterpenes, and aliphatic hydrocarbons are the main constituents found in their essential oils. This review is an overview of the chemical constituents and of the biological activities of Flourensia species.

show abstract

Constituents of two Flourensia species

Cited by 15 publications

References 26 publications

Exomorfología y anatomía de órganos vegetativos aéreos en especies de Flourensia DC. (Asteraceae) con importancia fitoquímica

Exomorfología y anatomía de órganos vegetativos aéreos en especies de Flourensia DC. (Asteraceae) con importancia fitoquímica

Volatiles and Nonvolatiles in Flourensia campestris Griseb. (Asteraceae), How Much Do Capitate Glandular Trichomes Matter?

Chemistry and Biology of the GenusFlourensia(Asteraceae)

Contact Info

Product

Resources

About