scholarly journals Erratum: Sponge larval settlement cues: the role of microbial biofilms in a warming ocean

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
S. Whalan ◽  
N. S. Webster
Keyword(s):  
Larval Settlement ◽  
Microbial Biofilms ◽  
Settlement Cues

scholarly journals The chemical cue tetrabromopyrrole from a biofilm bacterium induces settlement of multiple Caribbean corals

2014 ◽  
Vol 281 (1786) ◽  
pp. 20133086 ◽  
Author(s):  
Jennifer M. Sneed ◽  
Koty H. Sharp ◽  
Kimberly B. Ritchie ◽  
Valerie J. Paul
Keyword(s):  
Larval Settlement ◽  
Crustose Coralline Alga ◽  
Acropora Palmata ◽  
Chemical Cue ◽  
Broadcast Spawning ◽  
Porites Astreoides ◽  
Microbial Biofilms ◽  
Caribbean Coral ◽  
Single Compound

Microbial biofilms induce larval settlement for some invertebrates, including corals; however, the chemical cues involved have rarely been identified. Here, we demonstrate the role of microbial biofilms in inducing larval settlement with the Caribbean coral Porites astreoides and report the first instance of a chemical cue isolated from a marine biofilm bacterium that induces complete settlement (attachment and metamorphosis) of Caribbean coral larvae. Larvae settled in response to natural biofilms, and the response was eliminated when biofilms were treated with antibiotics. A similar settlement response was elicited by monospecific biofilms of a single bacterial strain, Pseudoalteromonas sp. PS5, isolated from the surface biofilm of a crustose coralline alga. The activity of Pseudoalteromonas sp. PS5 was attributed to the production of a single compound, tetrabromopyrrole (TBP), which has been shown previously to induce metamorphosis without attachment in Pacific acroporid corals. In addition to inducing settlement of brooded larvae ( P. astreoides ), TBP also induced larval settlement for two broadcast-spawning species, Orbicella (formerly Montastraea ) franksi and Acropora palmata , indicating that this compound may have widespread importance among Caribbean coral species.

Microbial Biofilms and Biotechnology – Some Perceptions

2020 ◽  
Vol 09 ◽  
Author(s):  
Subba Rao Toleti
Keyword(s):  
Tissue Culture ◽  
Synthetic Biology ◽  
Industrial Effluents ◽  
Aquatic Environments ◽  
Biochemical Processes ◽  
Microbial Biofilms ◽  
Biofilm Bacteria ◽  
Prophylactic Vaccines ◽  
Design Construction

: The review is an attempt to introduce the readers in brief about biofilms and their implications as well as some new perceptions in biotechnology. Biofilms are adherent microbial communities, which are developed on submerged surfaces in aquatic environments. Biofilms play a significant role in exopolymer production, material deterioration and also cause harmful infections. Further, the role of corrosion causing biofilm bacteria in deterioration of different materials, microbial biofilms and their enzymatic processes in reducing the toxicity of pollutants in industrial effluents are elaborated, along with clean technologies for wastewater treatment. Biotechnology is defined as any technological application that uses biological systems to synthesize or modify products or processes. The applications include biochemical processes, medical care, cell and tissue culture as well as synthetic biology and others. Synthetic biology details about the design, construction of new biological components and systems for useful purposes. Finally, to overcome the limitations that are inherent to the use of cellular host’s, cell-free systems as critical platforms for synthetic biology applications. This mini-review also mentions about new diagnostic products based on enzymes, monoclonal antibodies and engineered proteins as well as novel prophylactic vaccines.

Role of Microbial Biofilms in Agriculture: Perspectives on Plant and Soil Health

2021 ◽  
pp. 251-288
Author(s):  
Anupam Gogoi ◽  
Mandeep Poudel ◽  
Jagajjit Sahu ◽  
Geetanjali Baruah
Keyword(s):  
Soil Health ◽  
Microbial Biofilms

scholarly journals The effect of cyclic variation of shear stress on non‐cohesive sediment stabilization by microbial biofilms: the role of ‘biofilm precursors’

2019 ◽  
Vol 44 (7) ◽  
pp. 1471-1481 ◽  
Author(s):  
Xindi Chen ◽  
Changkuan Zhang ◽  
David M. Paterson ◽  
Ian H. Townend ◽  
Chuang Jin ◽  
...  
Keyword(s):  
Shear Stress ◽  
Cohesive Sediment ◽  
Cyclic Variation ◽  
Microbial Biofilms ◽  
Sediment Stabilization

scholarly journals Beating the bugs: roles of microbial biofilms in corrosion

2013 ◽  
Vol 31 (3-6) ◽  
pp. 73-84 ◽  
Author(s):  
Kwan Li ◽  
Matthew Whitfield ◽  
Krystyn J. Van Vliet
Keyword(s):  
Fossil Fuel ◽  
Degradation Process ◽  
Bacterial Biofilm ◽  
Microbiologically Influenced Corrosion ◽  
Metal Alloys ◽  
Current Understanding ◽  
Material Degradation ◽  
Complex Type ◽  
Microbial Biofilms

AbstractMicrobiologically influenced corrosion (MIC) is a complex type of environmentally assisted corrosion. Although poorly understood and challenging to ameliorate, it is increasingly appreciated that MIC accelerates failure of metal alloys, including steel pipeline. Historically, this type of material degradation process has been treated from either an electrochemical materials perspective or a microbiological perspective. Here, we review the current understanding of MIC mechanisms for steel – particularly those in sour environments relevant to fossil fuel recovery and processing – and outline the role of the bacterial biofilm in both corrosion processes and mitigation responses.

scholarly journals Recruitment of a coral reef fish: roles of settlement, habitat, and postsettlement losses

2020 ◽  
Author(s):  
Jeffrey Shima
Keyword(s):  
Reef Fish ◽  
Larval Settlement ◽  
Single Factor ◽  
Multiple Factors ◽  
Multiple Processes ◽  
Ecological Patterns ◽  
Local Patterns ◽  
Thalassoma Hardwicke ◽  
Multifactorial Causation

Multiple processes typically influence patterns of abundance. Despite this widely accepted view, many studies continue to approach ecological questions from a single-factor, or, at most, a two-factor perspective. Here, I evaluate the consequences of considering, separately and jointly, the effects of three factors (larval settlement, reef resources, and postsettlement losses) on spatial patterns of abundance of a marine reef fish, the six bar wrasse (Thalassoma hardwicke). Using correlational methods commonly employed in single-factor studies, I show that local patterns of abundance of juvenile wrasse could be attributed entirely to either (1) patterns of abundance of settlement habitat, or (2) patterns of larval settlement. This result occurred because habitat and presumed larval delivery covaried in space. I manipulated abundance of settlement habitat in a field experiment to uncouple this covariation and found subsequent settlement to be simultaneously influenced by both factors. However, joint effects of habitat and settlement failed to account for patterns of abundance of juvenile wrasse without also considering a third factor - postsettlement losses - which were density-dependent and substantially modified patterns of settlement. These results illustrate (1) how multifactorial explanations may be falsely refuted when incomplete sets of multiple factors are considered, and (2) how single-factor explanations may misrepresent underlying multifactorial causation of ecological patterns. Uncovering the interactive role of multiple factors in determining ecological patterns of interest requires a shift from single-factor approaches to more pluralistic perspectives.

scholarly journals Emphasizing iterative practices for a sequential course-based undergraduate research experience in microbial biofilms

2019 ◽  
Vol 366 (23) ◽  
Author(s):  
Caitlin J Light ◽  
Megan Fegley ◽  
Nancy Stamp
Keyword(s):  
Course Design ◽  
Undergraduate Research ◽  
First Year ◽  
Research Experience ◽  
Design Data ◽  
Research Experiences ◽  
Microbial Biofilms ◽  
Research Track ◽  
Student Cohorts

ABSTRACT Iteration is a fundamental area of course design in course-based undergraduate research experiences (CUREs). Iteration includes development of many skills necessary for laboratory work, experimental design, data analysis, communication and teamwork. With a focus on the microbial biofilm research track of the First-year Research Immersion (FRI) program, the perceptions of four student cohorts were examined at the end of the three-term CURE sequence, relative to exposure to iterative tasks, learning gains and benefits from the research experience. Based on results from the first two cohorts, substantial changes were made in the CURE sequence to increase iterative tasks and discussion with students about the iterative nature of research. In turn, the results for the latter cohorts reached FRI program targets. In sum, novice researchers benefit from a deliberate step-wise approach for developing skills to meet the requirements and understand the complex role of iteration in real research.

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