Morfología del cariotipo de Luma apiculata (DC.) Burret (Myrtaceae)

Jara-Seguel, Pedro; Cárcamo-Fincheira, Paz; Palma-Rojas, Claudio; Brand, Elisabeth von

doi:10.4067/s0717-66432013000200017

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…Arrayan (Luma apiculata) is a Myrtaceae [5] endemic plant from the Valparaiso to Aysen regions of Chile (latitude 33 • to 45 • S). It grows in the temperate forests of Chile and Argentina.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial Activity of Extracts of Two Native Fruits of Chile: Arrayan (Luma apiculata) and Peumo (Cryptocarya alba)

et al. 2020

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Arrayan and peumo fruits are commonly used in the traditional medicine of Chile. In this study, the concentration of the extracts halving the bacterial viability and biofilms formation and disruption of the drug-sensitive and drug-resistant strains of Staphylococcus aureus and Pseudomonas aeruginosa was determined. The chemical composition of extracts was analyzed by high-resolution liquid chromatography coupled with mass spectrometry (U-HPLC/MS). The arrayan extract (Inhibitory concentration IC50 0.35 ± 0.01 mg/mL) was more effective than peumo extract (IC50 0.53 ± 0.02 mg/mL) in the inhibition of S. aureus planktonic cells. Similarly, the arrayan extract was more effective in inhibiting the adhesion (S. aureus IC50 0.23 ± 0.02 mg/mL, P. aeruginosa IC50 0.29 ± 0.02 mg/mL) than peumo extracts (S. aureus IC50 0.47 ± 0.03 mg/mL, P. aeruginosa IC50 0.35 ± 0.01 mg/mL). Both extracts inhibited quorum sensing in a concentration-dependent manner, and the most significant was the autoinducer-2 type communication inhibition by arrayan extract. Both extracts also disrupted preformed biofilm of P. aeruginosa (arrayan IC50 0.56 ± 0.04 mg/mL, peumo IC50 0.59 ± 0.04 mg/mL). However, neither arrayan nor peumo extracts disrupted S. aureus mature biofilm. U-HPLC/MS showed that both fruit extracts mainly possessed quercetin compounds; the peumo fruit extract also contained phenolic acids and phenylpropanoids. Our results suggested that both extracts could be used as natural antimicrobials for some skin and nosocomial infections.

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Section: Introductionmentioning

confidence: 99%

Antimicrobial Activity of Extracts of Two Native Fruits of Chile: Arrayan (Luma apiculata) and Peumo (Cryptocarya alba)

et al. 2020

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Advances and perspectives on the evolutionary history and diversification of Neotropical Myrteae (Myrtaceae)

Neto

Santos

Lucas

et al. 2022

Botanical Journal of the Linnean Society

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Myrtaceae are one of the largest families of flowering plants and are widely distributed in the Neotropics, where they are mainly represented by the tribe Myrteae. Myrteae are the most species-rich tribe of Myrtaceae and include groups with significant ecological and economic importance. Myrteae are considered to be a model group for biodiversity studies in the Neotropics, and so understanding the history of their diversification in this area is extremely important. The last decade has witnessed an increase in macro- and microevolutionary studies of the group, and summarizing this knowledge is now crucial to plan future steps in research on Myrteae. Here we provide the first overview of evolution and diversification studies on Myrteae, highlighting recent advances in understanding their evolutionary history. We discuss biogeography, phylogeny, phylogeography, population genetics, genomics and cytology in light of current knowledge. Finally, we provide perspectives and open hypotheses to be tested in future studies to fill gaps in the evolutionary knowledge of specific groups/taxa in Myrteae.

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Morfología del cariotipo de Luma apiculata (DC.) Burret (Myrtaceae)

Abstract: Luma apiculata (DC.) Burret, had a symmetric karyotype, with 2n = 22 small sized chromosomes, ranging between 2.2 μm and 0.8 μm. The haploid karyotype formula was 9m + 2sm = 11. These karyotype characteristics of L. apiculata are a common character within Myrtaceae.

Cited by 2 publications

References 8 publications

Antimicrobial Activity of Extracts of Two Native Fruits of Chile: Arrayan (Luma apiculata) and Peumo (Cryptocarya alba)

Antimicrobial Activity of Extracts of Two Native Fruits of Chile: Arrayan (Luma apiculata) and Peumo (Cryptocarya alba)

Advances and perspectives on the evolutionary history and diversification of Neotropical Myrteae (Myrtaceae)

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