Secretory Structures in Artemisia Nitida Bertol. (Asteraceae)

Abstract

Artemisia nitida Bertol. has not been studied so far from a pharmaco-biological point of view. In the present work some results of morphological and histochemical studies on the secretory structures are given. The secretory structures are of two types: glandular trichomes, and secretory ducts whose secretion is quite similar but not identical. Taking all the precautions needed for the histochemical interpretation of the results, we can assume that the glandular trichomes and secretory ducts contain an oleoresin whose main constituents are terpenoids, steroids, and sesquiterpene lactones. Their presence in A. nitida justifies both biological and economic interest in this Italian species.

Anatomical studies of the secretory structures: Glandular trichomes and ducts, in Grindelia pulchella Dunal (Astereae, Asteraceae)

“…These type of trichomes, both in vegetative and in reproductive organs, were anatomically described in other Asteraceae, Tagetes minuta (Del Fueyo, 1986), Artemisia campestris (Ascensão and Pais, 1988), Tagetes patula (Poli et al, 1995), Artemisia nitida (Corsi and Nencioni, 1995), Porophyllum spp. (Guillet et al, 1997;Rossi Monteiro et al, 1999), Santolina leucantha (Pagni and Masini, 1999), Stevia rebaudiana (Cornara et al, 2001), Santolina ligustica (Pagni et al, 2003), Achillea maritima, Bellis perennis, Dittrichia viscosa, Eupatorium cannabinum, Matricaria chamomilla, Pulicaria dysenterica, and Tanacetum parthenium (Ciccarelli et al, 2007).…”

“…Secretory structures have been investigated in several genera of Asteraceae (Ascensão and Pais, 1988;Cornara et al, 2001;Corsi and Nencioni, 1995;Del Fueyo, 1986;Guillet et al, 1997;Pagni and Masini, 1999;Pagni et al, 2003;Poli et al, 1995;Rossi Monteiro et al, 1999). However, there are few ultra-structurally studies; only the secretory cavities of Porophyllum lanceolatum (Rossi Monteiro et al, 1999) and Artemisia campestris (Ascensão and Pais, 1988) were studied.…”

“…In many genera of Asteraceae the potential use in medicine or industry of the secreted substances have been pointed out: Artemisia L. (Ascensão and Pais, 1988;Corsi and Nencioni, 1995;Duke and Paul, 1993;Hayat et al, 2009), Eupatorium L. (Ragonese, 1988), Flourensia DC. (Delbón et al, 2007), Grindelia Willd.…”

The chemistry and pharmacology of alkaloids and allied nitrogen compounds fromArtemisiaspecies: A review

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Indagini biosistematiche sulla flora apuana. IV Contributo

“…Alia luce di questi risultati, si e ritenuto utile effettuare un nuovo conteggio cromosomico su una popolazione delle Alpi, la quale si e rivelata esaploide (2n =54, fig. Recentemente, questa entita ha evidenziato, nei popolamenti apuani, interessanti costituenti chimici nelle strutture secernenti (CORSI & NENCIONI, 1995 Questa dato sembra confermare l'opinione di Gutermann [com.…”