Title | Discriminatory power of MicroResp analyses across variable spatial scales in semiarid ecological zones |
Publication Type | Conference Proceedings |
Year of Publication | 2011 |
Authors | Tahtamouni ME, Unc A, Lucero M.E., Khresat S'eb |
Conference Name | 4th International Confrence on Enzymes in the Environment |
Series Title | Activity, Ecology and Applications |
Date Published | 08/2011 |
Publisher | Nature Proceedings |
Conference Location | Bad Nauheim, Germany |
ARIS Log Number | 272286 |
Abstract | ndirect assessment of enzymatic activity potential via substrate induced respiration is a common tool used to evaluate variability in soil microbial activity induced by environmental or management variables. The MicroResp™ method for total soil sample catabolic profiling has been employed to estimate divergence in microbial activities under contrasting conditions. Here we evaluate the potential for the method to discriminate across samples exposed to similar ecological conditions at distinct geographical locations, and across samples exposed to distinct soil management conditions. Samples used in this report came from four spatially distinct arid or semi arid locations in New Mexico, USA and Jordan. For all scales of comparison, similar conditions such as rhizosphere and non-rhizosphere soils, disturbance levels, soil depth and distance from plants were considered as factors. Catabolic profiles vary within and between sampling locations as a function of soil characteristics as induced by proximity to plants, plant species, sampling depth and land disturbance. |
URL | /files/bibliography/11-030.pdf |
DOI | 10.1038/npre.2011.6204.1 |