Estimating phosphorus availability for microbial growth in an emerging landscape
نویسندگان
چکیده
a Department of Ecology & Evolutionary Biology, University of Colorado, Boulder 80309, USA b Department of Ecosystem & Conservation Sciences, University of Montana, Missoula, MT 59812, USA c Institute of Arctic and Alpine Research, University of Colorado, Boulder, Colorado 80309, USA d U.S. Geological Survey, Southwest Biological Science Center, Moab, UT 84532, USA e Geomega, 2525 28th St., Suite 200, Boulder, CO 80301, USA
منابع مشابه
Soil enzyme activities, microbial communities, and carbon and nitrogen availability in organic agroecosystems across an intensively-managed agricultural landscape
Variability in the activity and composition of soil microbial communities may have important implications for the suite of microbially-derived ecosystem functions upon which agricultural systems rely, particularly organic agriculture. An on-farm approach was used to investigate microbial communities and soil carbon (C) and nitrogen (N) availability on 13 organically-managed fields growing Roma-...
متن کاملBiogeochemical stoichiometry of Antarctic Dry Valley ecosystems
[1] Among aquatic and terrestrial landscapes of the McMurdo Dry Valleys, Antarctica, ecosystem stoichiometry ranges from values near the Redfield ratios for C:N:P to nutrient concentrations in proportions far above or below ratios necessary to support balanced microbial growth. This polar desert provides an opportunity to evaluate stoichiometric approaches to understand nutrient cycling in an e...
متن کاملPhosphorus and bacterial growth in drinking water.
The availability of organic carbon is considered the key factor to regulate microbial regrowth in drinking water network. However, boreal regions (northern Europe, Russia, and North America) contain a large amount of organic carbon in forests and peatlands. Therefore, natural waters (lakes, rivers, and groundwater) in the northern hemisphere generally have a high content of organic carbon. We f...
متن کاملImprovement of phosphorus availability by microbial phytase in broilers and pigs.
Techniques have been developed to produce microbial phytase for addition to diets for simple-stomached animals, with the aim to improve phosphorus availability from phytate-P in plant sources. The activity of the crude microbial phytase showed pH optima at pH 5.5 and 2.5. The enzyme was able to degrade phytate in vitro in soya-bean meal, maize and a liquid compound feed for pigs. When microbial...
متن کاملThe Effect of Phytase Enzyme on the Performance of Broiler Flock (A-Review)
From the last few years, the inclusion of microbial phytase in poultry diets has increased significantly, mainly in response to heightened concerns over phosphorus pollution of the environment and as cheaper means to make phosphorus available to birds from phytate. Phytate is the major form of phosphorus, abundantly found in cereal grains, beans and oilseed meals used in poultry diet but the mo...
متن کامل