1999
DOI: 10.1080/07929978.1999.10676782
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Morphology, Distribution, and Histochemistry of Secretory Structures in Vegetative Organs of Santolina Leucantha Bertol. (Asteraceae)

Abstract: In the vegetative organs of Santolina leucantha Bertol. (Anthemideae), two distinct types of secretory structures are present: Internal secretory ducts and external glandular trichomes. The ducts are variable in morphology and location, depending on the organ in which they are present. The trichomes, however, show the same structure everywhere. In the roots, there are also scattered cells rich in secretion that are distributed in the periphery of the cortical cylinder. The histochemical analysis of the secreti… Show more

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Cited by 21 publications
(22 citation statements)
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“…As observed in this study and well registered in various species of Baccharis, the vascular bundles were collateral and there was an association with them and secretory ducts (Silva & Grotta, 1971;Ariza-Espinar, 1973;Sá & Neves, 1996;Oliveira & Bastos, 1998;Cortadi et al, 1999;Ortins & Akisue, 2000;Budel et al, 2003a;Budel et al, 2004a). According to Pagni and Masini (1999), in many members of Asteraceae, the ducts were usually related to the endodermis, were next to the phloem, the secretory structures were associated with this conducting system.…”
Section: Discussionmentioning
confidence: 77%
“…As observed in this study and well registered in various species of Baccharis, the vascular bundles were collateral and there was an association with them and secretory ducts (Silva & Grotta, 1971;Ariza-Espinar, 1973;Sá & Neves, 1996;Oliveira & Bastos, 1998;Cortadi et al, 1999;Ortins & Akisue, 2000;Budel et al, 2003a;Budel et al, 2004a). According to Pagni and Masini (1999), in many members of Asteraceae, the ducts were usually related to the endodermis, were next to the phloem, the secretory structures were associated with this conducting system.…”
Section: Discussionmentioning
confidence: 77%
“…Ariza-Espinar (1973) relata que as cavidades secretoras em espécies de Baccharis originam da endoderme. Adicionalmente, Pagni & Masini (1999) afi rmam que em muitos membros de Asteraceae os dutos estão freqüentemente relacionados com a endoderme. Entretanto, quando estão próximo ao fl oema, os dutos secretores estão associados com o sistema vascular.…”
Section: Discussionunclassified
“…Plantas medicinais como B. pilosa (Duarte & Estelita, 1999), M. conferta (Oliveira et al, 1999), M. cordifolia (Oliveira et al, 2000) e M. glomerata (Neves & Sá, 1991) apresentam a mesma característica. Segundo Pagni & Masini (1999), em vários representantes de Asteraceae a endoderme está associada à presença de dutos secretores. Em Elephantopus, apesar do registro de dutos em raízes, os mesmos não são mencionados em caules (Lersten &Curtis, 1987), sendo a ausência dessa estrutura secretora confi rmada nesta análise.…”
Section: Cauleunclassified
“…(Neves & Sá, 1991), Santolina leucantha Bertol. (Pagni & Masini, 1999), Stevia rebaudiana (Bert.) Bert.…”
Section: Discussão Folhamentioning
confidence: 99%