نتایج جستجو برای: soil sterilization

تعداد نتایج: 189251  

2013
Ling Zhang Yaojun Zhang Hong Wang Jianwen Zou Evan Siemann

Two mechanisms that have been proposed to explain success of invasive plants are unusual biotic interactions, such as enemy release or enhanced mutualisms, and increased resource availability. However, while these mechanisms are usually considered separately, both may be involved in successful invasions. Biotic interactions may be positive or negative and may interact with nutritional resources...

Sterilized soils are commonly used for the study of xenobiotic sorption and as an abiotic control in biodegradation experiments. They are also used for the chemical study of nitrogen and carbon cycle processes and the elimination of the biological factors. In this research the effects of different soil sterilization methods such as autoclaving, fumigating and exposure to ultraviolet and microwa...

Journal: :caspian journal of environmental sciences 2007
s. razavi darbar

sterilized soils are commonly used for the study of xenobiotic sorption and as an abiotic control in biodegradation experiments. they are also used for the chemical study of nitrogen and carbon cycle processes and the elimination of the biological factors. in this research the effects of different soil sterilization methods such as autoclaving, fumigating and exposure to ultraviolet and microwa...

2016
Janosch Schirmack Marcel Fiebrandt Katharina Stapelmann Dirk Schulze-Makuch

We used Ar plasma-sterilization at a temperature below 80 °C to examine its effects on the viability of microorganisms when intermixed with tested soil. Due to a relatively low temperature, this method is not thought to affect the properties of a soil, particularly its organic component, to a significant degree. The method has previously been shown to work well on spacecraft parts. The selected...

Journal: :The Journal of General Physiology 2003
E. B. Fred

In a study of the action of bacteria in soil it is frequently desirable to determine the relation that exists between the microorganisms and higher plants. The procedure is comparatively simple if small plants or seedlings are used. For this purpose test-tubes, especially the large Pyrex tribes described by Knudson, 1 give excellent results. Where it is necessary to grow large plants and to car...

Journal: :Canadian journal of microbiology 1975
D P Labeda D L Balkwill L E Casida

Soil was sterilized by various procedures, and then the resident microorganisms were physically separated and concentrated from the soil for viewing by transmission electron microscopy as thin sections and frozen-etched preparation. Remaining cell viability in the soil was tested by conventional plating before and after enrichment culture. The soil proved to be sterile after treatment with 60Co...

2008
Young Sub Cho Hang Yeon Weon Jung Ho Joh Jong Hyun Lim Kyung Yun Kim Eun Suk Son Chang Soo Lee Bong Gum Cho

Various bacteria were isolated from the casing layer soil of the culture bed of P. ostreatus and their role in fruiting body induction of the edible mushroom, P. ostreatus, was investigated. Analysis of the bacterial community isolated from the casing layer soil revealed that the composition of genera and number of cultivable bacteria were different for each sterilizing treatment. Bordetella wa...

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