نتایج جستجو برای: microbial properties

تعداد نتایج: 972801  

2009
Rima B. Franklin Aaron L. Mills

Spatial heterogeneity is an inherent feature of soils that has significant functional implications, particularly when the activities of soil microbial communities are considered. The main goal of this study was to determine the physical–chemical properties best correlated with changes in microbial community composition in an agricultural ecosystem, as part of an effort to better understand what...

2015
J. Hedo M. E. Lucas-Borja C. Wic M. Andrés-Abellán J. de Las Heras

Wildfires affecting forest ecosystems and post-fire silvicultural treatments may cause considerable changes in soil properties. The capacity of different microbial groups to recolonise soil after disturbances is crucial for proper soil functioning. The aim of this work was to investigate some microbial soil properties and enzyme activities in semiarid and dry Aleppo pine (Pinus halepensis M.) f...

ژورنال: پژوهش در پزشکی 2017

Resistance to antibiotic and also the side effects of drug consumption are the main problem in antibiotic treatment. Therefore, after doing researches on the plants properties, humankind has attempted to use them in different industries. In this investigation the anti-microbial effects of ethanolic extracts of four medicinal plants from Ardebil province include Nepeta nuda, Salvia verticilata, ...

2010
Chanjuan Hu Bojie Fu Guohua Liu Tiantian Jin Lei Guo

Purpose Shifts of microbial biomass and functional diversity under different vegetation patterns can impact the soil processes, and the specific knowledge about this can be used to develop sound vegetation restoration strategies. This study was devoted to examine the effects of different vegetation patterns on microbial biomass and functional diversity and explore the relationship between soil ...

2006
David Kirchman

Most bacteria and archaea in natural environments still cannot be isolated and cultivated as pure cultures in the laboratory, and the microbes that can be cultured appear to be quite different from uncultured ones. Consequently, the phylogenetic composition, physiological capacity and genetic properties of natural microbes have to be deduced from bulk properties of microbial assemblages, fluore...

جلال جمالیان, , غلامرضا مصباحی, ,

Iran is a major apple producing country. A number of industrial apple products can be made from apple. In some developed countries about 25% of apples are processed into apple sauce. Apple sauce hasn’t so far been produced by Iranian food industry, but if a formulation suitable for the taste of Iranian consumers is prepared, it can commercially succeed as a consumer product. At the first step o...

2011
S. Sheik

Beta-galactosidase (ß-D-galactoside galactohydrolase, EC 3.2.1.23), has tremendous potential in research and application in various fields like food, bioremediation, biosensor, diagnosis and treatment of disorders. The sources of the betagalactosidase are microorganisms, plants and animals. Microbial beta-galactosidase is of much interest because of their thermostability, thermoacidophilic and ...

2012
Nuria Bonilla José A. Gutiérrez-Barranquero Antonio de Vicente Francisco M. Cazorla

The practice of adding organic amendments to crop soils is undergoing resurgence as an efficient way to restore soil organic matter content and to improve soil quality. The quantity and quality of the organic matter inputs affect soil physicochemical properties and soil microbiota, influencing different parameters such as microbial biomass and diversity, community structure and microbial activi...

2015
Chelsea J. Carey J. Michael Beman Valerie T. Eviner Carolyn M. Malmstrom Stephen C. Hart

Global and regional environmental changes often co-occur, creating complex gradients of disturbance on the landscape. Soil microbial communities are an important component of ecosystem response to environmental change, yet little is known about how microbial structure and function respond to multiple disturbances, or whether multiple environmental changes lead to unanticipated interactive effec...

2015
Xuan Yu Xu Liu Zhong Zhao Jinliang Liu Shunxiang Zhang

This study aims to evaluate the effect of different afforestation models on soil microbial composition in the Loess Plateau in China. In particular, we determined soil physicochemical properties, enzyme activities, and microbial community structures in the top 0 cm to 10 cm soil underneath a pure Hippophae rhamnoides (SS) stand and three mixed stands, namely, H. rhamnoides and Robinia pseucdoac...

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