Community level physiological profile response to plant residue additions in Antarctic soils

2005 ◽  
Vol 42 (1) ◽  
pp. 60-65 ◽  
Author(s):  
Elaine Malosso ◽  
Lorna English ◽  
David W. Hopkins ◽  
Anthony G. O’Donnell
Biofilms ◽  
2005 ◽  
Vol 2 (4) ◽  
pp. 239-243 ◽  
Author(s):  
D. A. Spratt ◽  
J. Pratten

The aim of this work was to study the community level physiological profile of a developing oral biofilm. Mixed-species biofilms, derived from human saliva, were grown in a constant-depth film fermentor for up to 240 h. Biolog GP2 microplates were inoculated with saliva or homogenized biofilms and incubated at 37 °C. The results showed that a biofilm community could utilize a range of substrates more diverse than those of their planktonic counterparts. Following the construction of dendrograms, a temporal relationship was demonstrated between the inoculum and biofilms, and the difference in communities over time was also resolved by using an eight-digit code of positive carbon sources. The diversity of the populations could be determined through the use of the community level physiological profile and the treatment of the data may augment the interpretation of the results. Methods such as community level physiological profiling may provide a valuable insight into the composition of biofilm communities associated with oral health and disease.


2008 ◽  
Vol 72 (3) ◽  
pp. 221-226 ◽  
Author(s):  
Margarita Ros ◽  
Marta Goberna ◽  
Jose Antonio Pascual ◽  
Susanne Klammer ◽  
Heribert Insam

Author(s):  
Bogdan Mihai ONICA ◽  
Roxana VIDICAN ◽  
Mignon SANDOR

MicroResp is a colorimetric method developed by Campbell et al., (2003), used for assessing the community level physiological profile of the microbial population. MicroResp can be used to assess soil health, pollution induced community tolerance, also for toxicity testing, pesticide degradation profiles, bioremediation evaluation and water ecology and toxicity. The aim of the present review was to look over the results of recent papers and to highlight the importance and efficiency of the MicroResp method in assessing the physiological profile of the microbial community. The method advantages and limitations were also assessed. We focused on agricultural soil in order to deepen our understanding about changes of microbial community induced by agricultural practices. To achieve this goal, academic literature was analyzed using an academic database. There were set a total of six keywords, used to make a search algorithm, achieving five search terms. For each search, the first four articles of interest were chosen to be reviewed. After the searches for each of the terms, between 72 and 210 articles were found, 20 of them being chosen for final evaluation. Following the undertaken research, it can be stated that MicroResp method is an important tool to assess the physiological profile of the microbial community, featuring a series of advantages that place it ahead of other competing methods.


2018 ◽  
Vol 11 (1) ◽  
pp. 56 ◽  
Author(s):  
Jarosław Grządziel ◽  
Karolina Furtak ◽  
Anna Gałązka

Comparative studies, such as the analysis of physicochemical properties and the microbiological composition of soil, are burdened with many problems resulting from the various locations of soils—often, different weather conditions among the experimental fields and varying time between the sample collection and analysis. The aim of this study was to assess the differences in the physiological profiles of bacterial communities from eight different types of soils from Poland, used in the microplot experiment that was established in 1881. The same plant species were continuously grown at all plots, at the same time, and the soil received the same type of fertilization. Moreover, the soils were always under the same weather conditions. The community-level physiological profiles of microorganisms were evaluated by using the Biolog EcoPlate™ method. The analysis demonstrated that good quality soils, especially the Gleyic Chernozem, Cambic Leptosol, and the Fluvic Cambisol exhibit a significantly higher enzyme activity, compared with the dystric soils. The dehydrogenases activity in the different time-points indicates a wide soil microbiome buffering capacity, which allows the persistence of a relatively permanent physiological profile, over many years.


Sign in / Sign up

Export Citation Format

Share Document