Quantification of Chlorophyll as a Proxy for Biofilm Formation in the Cyanobacterium .

Bio Protoc

The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, Israel.

Published: July 2017

AI Article Synopsis

  • A study on the cyanobacterium PCC 7942 revealed a mechanism that suppresses its biofilm development, focusing on mutants lacking this inhibition.
  • Researchers utilized chlorophyll measurements to quantify the biomass of both sessile (attached) and planktonic (free-floating) cells in biofilm-forming strains.
  • This approach helps in estimating total biomass via chlorophyll levels and visualizing the degree of biofilm formation by analyzing chlorophyll distribution between the two cell types.

Article Abstract

A self-suppression mechanism of biofilm development in the cyanobacterium PCC 7942 was recently reported. These studies required quantification of biofilms formed by mutants impaired in the biofilm-inhibitory process. Here we describe in detail the use of chlorophyll measurements as a proxy for biomass accumulation in sessile and planktonic cells of biofilm-forming strains. These measurements allow quantification of the total biomass as estimated by chlorophyll level and representation of the extent of biofilm formation by depicting the relative fraction of chlorophyll in planktonic cells.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8413561PMC
http://dx.doi.org/10.21769/BioProtoc.2406DOI Listing

Publication Analysis

Top Keywords

biofilm formation
8
planktonic cells
8
quantification chlorophyll
4
chlorophyll proxy
4
proxy biofilm
4
formation cyanobacterium
4
cyanobacterium self-suppression
4
self-suppression mechanism
4
mechanism biofilm
4
biofilm development
4

Similar Publications

Isolation and Characterization of a Lytic Phage PaTJ Against .

Viruses

November 2024

Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510000, China.

is a major global threat to human health, and phage therapy has emerged as a promising strategy for treating infections caused by multidrug-resistant pathogens. In this study, we isolated and characterized a lytic phage, PaTJ, from wastewater. PaTJ belongs to the phage family , and is featured by short latency (30 min) and large burst size (10 PFU per infected cell).

View Article and Find Full Text PDF

Skin wound healing is a physiological process orchestrated by epithelial and mesenchymal cells able to restore tissue continuity by re-organizing themselves and the ECM. This research study aimed to develop an optimized in vitro experimental model of full-thickness skin, to address molecular and morphological modifications occurring in the re-epithelization and wound healing process. Wound healing starting events were investigated within an experimental window of 8 days at the molecular level by gene expression and immunofluorescence of key epidermal and dermal biomarkers.

View Article and Find Full Text PDF

Incorporating nanoparticles into denture materials shows promise for the prevention of denture-associated fungal infections. This study investigates the antifungal properties of acrylic modified with microwave-sintered ZnO-Ag nanoparticles. ZnO-Ag nanoparticles (1% and 2.

View Article and Find Full Text PDF

spp. are facultative pathogens that contribute to the pathogenesis of multiple bovine diseases, including the bovine respiratory disease complex, and have been shown to form biofilms. Biofilm formation is associated with increased antibiotic resistance in many organisms, but accurate determination of antimicrobial susceptibility in biofilms is challenging.

View Article and Find Full Text PDF

Nanoarchitectonics for Advancing Bone Graft Technology: Integration of Silver Nanoparticles Against Bacteria and Fungi.

Microorganisms

December 2024

Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba 80215-901, PR, Brazil.

Silver nanoparticles have garnered significant attention for their antimicrobial applications. The aim of this study was to develop and characterize a silver nanoparticle-enhanced bone graft and assess its antimicrobial and antibiofilm activities. Bone granules from bovine cancellous femur were impregnated with silver nanoparticles (50 nm).

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!