Three new phenanthrenes with antimicrobial activities from the aerial parts of Juncus effusus.

Fitoterapia

School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, PR China; Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China. Electronic address:

Published: October 2018

Three new phenanthrenes (1-3), designated as 2-methoxy-1,6-dimethyl-5-vinyl-9, 10-dihydrophenanthren-7-ol, 1,6-dimethyl-4,5-dihydropyrene-2,7-diol and 1-(3,7- dihydroxy-2,8-dimethyl-9,10-dihydrophenanthren-1-yl)ethanone, were isolated from the aerial parts of Juncus effusus. Their structures were determined by extensive spectroscopic experiments (NMR and MS) and comparing with those related known compounds. The antifungal and antibacterial activities of 1-3 were evaluated. Compound 1 showed remarkable antifungal activities against six agricultural pathogenic fungi (Rhizoctonia solani, Verticillium dahliae Kleb, Sclerotinia sclerotiorum, Gibberella saubinetii, Bipolaris zeicola, and Phytophthora parasitica) with minimum inhibitory concentration (MIC) values ranging from 3.125 to 12.5 μg/mL, and also displayed significant antibacterial activities against two human pathogenic bacteria (Bacterium paratyphosum B and Micrococcus lysodeikticus) with MIC values of 12.5 and 25 μg/mL, respectively.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.fitote.2018.09.007DOI Listing

Publication Analysis

Top Keywords

three phenanthrenes
8
aerial parts
8
parts juncus
8
juncus effusus
8
antibacterial activities
8
mic values
8
phenanthrenes antimicrobial
4
activities
4
antimicrobial activities
4
activities aerial
4

Similar Publications

A novel immobilized bacteria consortium enhanced remediation efficiency of PAHs in soil: Insights into key removal mechanism and main driving factor.

J Hazard Mater

January 2025

State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address:

The remediation of sites co-contaminated with polycyclic aromatic hydrocarbons (PAHs) and heavy metals (HMs) poses challenges for efficient and ecofriendly restoration methods. In this study, three strains (Pseudomonas sp. PDC-1, Rhodococcus sp.

View Article and Find Full Text PDF

The Danjiangkou Reservoir is the largest artificial freshwater lake in Asia. This study investigated the spatiotemporal distribution of pesticides and polycyclic aromatic hydrocarbons (PAHs) in the Danjiangkou Reservoir to assess the ecological and human health risks associated with these pollutants. Twenty-three sampling sites in the Danjiangkou Reservoir each collected 23 surface water samples and 23 sediment samples.

View Article and Find Full Text PDF

Children are highly sensitive to toxins which can damage their organs and lead to death. Investigating the main causes of intoxication could reduce mortality and morbidity in children. In this cross-sectional study, the documents of all poisoned patients (214 cases) admitted to the emergency department of Taleghani children`s Hospital between April 2020 and 2023 were investigated.

View Article and Find Full Text PDF

Background: Xylazine is a α2-adrenergic receptor agonist, used for sedation in veterinary contexts. Although it is increasingly found in overdose deaths across North America, the clinical management of xylazine-involved overdoses has not been extensively studied, especially in community-based harm reduction settings. Here we present a clinical series of xylazine-involved overdose and share the clinical approach and lessons learned by a community overdose response team in Tijuana, Mexico amidst the arrival of xylazine.

View Article and Find Full Text PDF

Objectives: To compare the efficacy and safety of intravenous (IV) ketorolac and IV morphine in the management of severe vaso-occlusive crisis (VOC) in children with sickle cell disease (SCD).

Method: An open-label, randomized controlled trial was conducted from January 2021 to July 2022 wherein children with SCD aged 3 to 15 years, presenting with severe VOC (score > 6 on the Wong-Baker Faces Pain scale) were included. Block randomization with minimization was done and participants received either IV ketorolac (intervention) or IV morphine infusion (standard).

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!