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Antimicrobial Activity the Essential Oil from Croton pluriglandulosus Carn. Leaves against Microorganisms of Clinical Interest.


ABSTRACT: Multiresistant pathogens pose a serious threat to human health. The genus Candida is one class of human pathogenic yeasts responsible for infections affecting healthy and immunocompromised patients. In this context, plant essential oils emerged as a future natural alternative to control the diseases caused by these pathogens. Based on that, the present study aimed to evaluate the antimicrobial potential of essential oil from C. pluriglandulosus and understand the mechanism of action. Here, it highlighted antimicrobial activity and the mechanisms of action of the essential oil extracted from C. pluriglandulosus Carn.-Torres & Riina (CpEO) leaves on human pathogenic microorganisms in planktonic and biofilm lifestyles. In addition, for the first time, the oil composition was revealed by GC-MS analysis and the toxicity to human red blood cells (HRBC). Twenty-six chemical compounds were identified in CpEO, elemicin, bicyclogermacrene, caryophyllene, brevifolin, and 2,4,6-trimethoxy-styrene. Through hemolytic assay, it was shown that CpEO has no toxicity to human RBCs. At the concentration of 50 μg mL-1, CpEO did not show great antibacterial potential. However, promising data were found for C. krusei and C. parapsilosis inhibiting by 89.3% and 80.7% of planktonic cell growth and 83.5% and 77.9% the biofilm formation, respectively. Furthermore, the mechanisms of action CpEO were elucidated by fluorescence. Scanning electron microscopy revealed damage to the cell membrane and pore formation, ROS overproduction, and induction of apoptosis in candida cells. Our results reinforce the potential of CpEO as an effective alternative molecule of pharmaceutical interest.

SUBMITTER: Carvalho RJP 

PROVIDER: S-EPMC10381380 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature

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Antimicrobial Activity the Essential Oil from <i>Croton pluriglandulosus</i> Carn. Leaves against Microorganisms of Clinical Interest.

Carvalho Rayara J P RJP   Souza Pedro F N PFN   Malveira Ellen A EA   Neto Nilton A S NAS   Silva Romério R S RRS   Melo Gabriel L C GLC   Silva Ayrles F B AFB   Lima Leandro B LB   de Albuquerque Cynthia C CC   Bastos Rafael W RW   Goldman Gustavo H GH   de Freitas Cleverson D T CDT  

Journal of fungi (Basel, Switzerland) 20230717 7


Multiresistant pathogens pose a serious threat to human health. The genus <i>Candida</i> is one class of human pathogenic yeasts responsible for infections affecting healthy and immunocompromised patients. In this context, plant essential oils emerged as a future natural alternative to control the diseases caused by these pathogens. Based on that, the present study aimed to evaluate the antimicrobial potential of essential oil from <i>C. pluriglandulosus</i> and understand the mechanism of actio  ...[more]

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