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Microorganisms, Volume 10, Issue 12

December 2022 - 212 articles

Cover Story: During the last 20 years, thousands of biological experiments have been performed onboard of the ISS, but to date, the evolution of bacterial species of the International Space Station (ISS) microbiota has been underestimated. We examined a new clade of the Bacillus cereus group, closely related to B. anthracis and to B. cereus pathogenic strains which colonized the ISS and isolated from 2004 and 2011. The high genomic sequence identity indicates they originated from the same strain, but a close look at the genomes suggests they lived in a vegetative form for the time necessary to accumulate genetic variations among the strains. Hence, ISS Bacillus cereus strains are still on the ISS and could, in theory, acquire and exchange pathogenic plasmids with other Bacilli, posing a threat for astronauts. View this paper
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Articles (212)

  • Article
  • Open Access
18 Citations
6,308 Views
27 Pages

The skin is the largest organ in the human body and is colonized by a diverse microbiota that works in harmony to protect the skin. However, when skin damage occurs, the skin microbiota is also disrupted, and pathogens can invade the wound and cause...

  • Article
  • Open Access
19 Citations
4,271 Views
13 Pages

Probiotic Properties of Chicken-Derived Highly Adherent Lactic Acid Bacteria and Inhibition of Enteropathogenic Bacteria in Caco-2 Cells

  • Pudi Wang,
  • Songbiao Chen,
  • Chengshui Liao,
  • Yanyan Jia,
  • Jing Li,
  • Ke Shang,
  • Jian Chen,
  • Pinghua Cao,
  • Wang Li and
  • Yuanxiao Li
  • + 2 authors

Lactic acid bacteria (LAB) as probiotic candidates have various beneficial functions, such as regulating gut microbiota, inhibiting intestinal pathogens, and improving gut immunity. The colonization of the intestine is a prerequisite for probiotic fu...

  • Article
  • Open Access
2 Citations
2,540 Views
17 Pages

Disalicylic Acid Provides Effective Control of Pectobacterium brasiliense

  • Sapir Tuizer,
  • Manoj Pun,
  • Iris Yedidia and
  • Zohar Kerem

Bis(2-carboxyphenyl) succinate (disalicylic acid; DSA) is composed of two salicylic acids connected by a succinyl linker. Here, we propose its use as a new, synthetic plant-protection agent. DSA was shown to control Pectobacterium brasiliense, an eme...

  • Review
  • Open Access
33 Citations
8,219 Views
33 Pages

Gastro-Intestinal Microbiota in Equines and Its Role in Health and Disease: The Black Box Opens

  • Frédérique Chaucheyras-Durand,
  • Audrey Sacy,
  • Kip Karges and
  • Emmanuelle Apper

Horses are large non-ruminant herbivores and rely on microbial fermentation for energy, with more than half of their maintenance energy requirement coming from microbial fermentation occurring in their enlarged caecum and colon. To achieve that, the...

  • Article
  • Open Access
2 Citations
2,453 Views
13 Pages

Enzymatic Characterization of Unused Biomass Degradation Using the Clostridium cellulovorans Cellulosome

  • Mohamed Yahia Eljonaid,
  • Hisao Tomita,
  • Fumiyoshi Okazaki and
  • Yutaka Tamaru

The cellulolytic system of Clostridium cellulovorans mainly consisting of a cellulosome that synergistically collaborates with non-complexed enzymes was investigated using cellulosic biomass. The cellulosomes were isolated from the culture supernatan...

  • Article
  • Open Access
11 Citations
4,919 Views
19 Pages

Exploring Diversity and Polymer Degrading Potential of Epiphytic Bacteria Isolated from Marine Macroalgae

  • Pravin Kumar,
  • Ashish Verma,
  • Shiva S. Sundharam,
  • Anup Kumar Ojha and
  • Srinivasan Krishnamurthi

The macroalgae surface allows specific bacterial communities to colonize, resulting in complex biological interactions. In recent years, several researchers have studied the diversity and function of the epiphytic bacteria associated with algal host,...

  • Review
  • Open Access
3 Citations
3,304 Views
14 Pages

Disentangling biodiversity and community assembly effects on ecosystem function has always been an important topic in ecological research. The development and application of a DNA metabarcoding method has fundamentally changed the way we describe pro...

  • Communication
  • Open Access
13 Citations
2,521 Views
9 Pages

Aggregatibacter actinomycetemcomitans and Filifactor alocis as Associated with Periodontal Attachment Loss in a Cohort of Ghanaian Adolescents

  • Zeinab Razooqi,
  • Carola Höglund Åberg,
  • Francis Kwamin,
  • Rolf Claesson,
  • Dorte Haubek,
  • Jan Oscarsson and
  • Anders Johansson

The aims of the present study were to document the presence of Aggregatibacter actinomyctemcomitans and the emerging oral pathogen Filifactor alocis, as well as to identify genotypes of these bacterial species with enhanced virulence. In addition, th...

  • Article
  • Open Access
12 Citations
2,920 Views
14 Pages

Heavy metals are considered as dangerous pollutants even in relatively low concentrations. Biosorption is an ecofriendly technology that uses microbial biomasses for adsorbing heavy metals from wastewater on their surfaces based on physicochemical pa...

  • Communication
  • Open Access
2,409 Views
11 Pages

Allelic Variants of P66 Gene in Borrelia bavariensis Isolates from Patients with Ixodid Tick-Borne Borreliosis

  • Kristina Golidonova,
  • Eduard Korenberg,
  • Ekaterina Krupinskaya,
  • Vera Matrosova and
  • Alexander Gintsburg

Protein P66 is one of the crucial virulence factors of Borrelia, inducing the production of specific antibodies in patients with ixodid tick-borne borreliosis (ITBB). Various species of Borrelia are characterized by genetic variability of the surface...

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Microorganisms - ISSN 2076-2607