Diversity in surface colonization behavior in marine bacteria

1996 ◽  
Vol 17 (3-4) ◽  
pp. 228-234 ◽  
Author(s):  
H M Dalton ◽  
A E Goodman ◽  
K C Marshall
Keyword(s):  
Marine Bacteria ◽  
Surface Colonization ◽  
Colonization Behavior

Iron effects on colonization behavior, motility, and enzymatic activity of marine bacteria

2007 ◽  
Vol 53 (8) ◽  
pp. 968-974 ◽  
Author(s):  
Kam W. Tang ◽  
Hans-Peter Grossart
Keyword(s):  
Marine Bacteria ◽  
Laboratory Experiments ◽  
Large Fraction ◽  
Iron Limitation ◽  
Colonization Rate ◽  
Particle Interactions ◽  
Iron Availability ◽  
Free Living ◽  
Attached Bacteria ◽  
Colonization Behavior

Iron availability in the ocean has been shown to affect the growth and production of phytoplankton and free-living bacteria. A large fraction of marine bacteria are specialized in colonizing and living on particles and aggregates, but the effects of iron limitation on these bacteria are not fully known. We conducted laboratory experiments to study the effects of iron availability on particle colonization behavior, motility, and enzymatic activities of 4 strains of marine bacteria. Iron depletion reduced the bacterial particle colonization rate by 1.7%–43.1%, which could be attributed to reduced swimming speeds in 2 of the 4 strains. Protease activity was not affected by iron availability. However, attached bacteria did show higher protease activities than their free counterparts. Our results suggest that iron limitation in the ocean could in some cases reduce bacteria–particle interactions by reducing bacterial motility and colonization rate.

Evaluation of the anticancer potential of marine bacteria isolated from a New Caledonia's extreme environment

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
V Guillemard ◽  
L Guentas-Dombrowsky ◽  
E Lobbens ◽  
C Payri
Keyword(s):  
Marine Bacteria ◽  
Extreme Environment

Potential Antimicrobial Peptides Elucidation From The Marine Bacteria

2020 ◽  
Vol 18 ◽  
Author(s):  
Adyasa Barik ◽  
Pandiyan Rajesh ◽  
Manthiram Malathi ◽  
Vellaisamy Balasubramanian
Keyword(s):  
Antimicrobial Peptide ◽  
Marine Bacteria ◽  
Unnatural Amino Acids ◽  
Wide Spectrum ◽  
Drug Resistant ◽  
Medical Field ◽  
The World ◽  
Pathogenic Microbes ◽  
Antimicrobial Peptide Resistance ◽  
Significant Attention

: In recent years, over use of antibiotics has been raising its head to a serious problem all around the world as pathogens become drug resistant and create challenges to the medical field. This failure of most potent antibiotics that kill pathogens increases the thirst for research to look further way of killing pathogens. It has been led to the findings of antimicrobial peptide which is the most potent peptide to destroy pathogens. This review gives special emphasis to the usage of marine bacteria and other microorganisms for antimicrobial peptide (AMP) which are eco friendly as well as a developing class of natural and synthetic peptides with a wide spectrum of targets to pathogenic microbes. Consequently, a significant attention has been paid mainly to (i) the structure and types of anti microbial peptides and (ii) mode of action and mechanism of antimicrobial peptide resistance to pathogens. In addition to this, the designing of AMPs has been analysed thoroughly for reducing toxicity and developing better potent AMP. It has been done by the modified unnatural amino acids by amidation to target the control of biofilm and persister cell.

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