Phylogenetic analysis and evolution of morphological characters in Metrodorea and related species in Rutoideae (Rutaceae)

Cruz, Rafael; Duarte, Marília Cristina; Pirani, José Rubens; Melo-de-Pinna, Gladys Flávia de Albuquerque

doi:10.1007/s00606-017-1423-x

Cited by 6 publications

(1 citation statement)

References 32 publications

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“…The presence or absence of microscopic features is one of the important characters for understanding the evolutionary relationships of plant species [55] and to compare distinct morphological characters of the species with those of related genera, or to the same species cultivated in other country. [56] Carissa macrocarpa stem and leaves were characterized microscopically by the presence of large calcium oxalate clusters called druses, large pericyclic fibers in stem which walls are not lignified but impregnated by cellulose, leaves protected by an epidermis with thick cuticle, scarce trichomes on upper epidermis. Numerous elongated laticifiers non articulated unbranched in the cortex of the stem, in the leaves and fruits, a perimedullary phloem was also found around the peripheral pith.…”

Section: Stem and Fruit Anatomymentioning

confidence: 99%

Chemical Composition and Activity of Essential Oils of Carissa macrocarpa (Eckl.) A.DC. Cultivated in Tunisia and Its Anatomical Features

Souilem

Ayeb

Djlassi

et al. 2018

Chemistry & Biodiversity

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This is the first study investigating the chemical composition of essential oils (EOs) isolated from different tissues of Carissa macrocarpa (Eckl.) A.DC., their antimicrobial activity and the anatomical characters of the aerial organs and the fruits. The main EO components were pentadecanal and tetradecan-1-ol (31.9 and 16.5% in fresh leaf EO, respectively), (E)-nerolidol and caryophyllene oxide (27.3 and 15.0% in fruit EO, respectively), linalool and hexahydrofarnesyl acetone (30.9 and 24.9% in stem EO, respectively), benzyl benzoate (24.3% in flower EO). The fruit EO was more active against Candida albicans (MIC = 0.46 mg/mL) compared to the reference antibiotic (17.66 mg/mL). Furthermore, at this concentration it inhibited all the Gram-positive bacteria. Concerning the anatomical features, it is noteworthy to mention the presence of a large cluster of calcium oxalate crystals inside some parenchymatous cells. Large ducts corresponding to non articulated laticifers were identified in the cortex of leaf, stem and fruit pericarp. The laticifers categories and their distribution are taxonomically important to discriminate this species from others acclimated in different countries. Considering the obtained results, EOs of C. macrocarpa can be a good source of antimicrobial compounds, contributing to solve the problem of microbial resistance to antibiotics.

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Section: Stem and Fruit Anatomymentioning

confidence: 99%