Herbicide atrazine easily leaches to groundwater, where it is persistent. We studied whether sonication accelerates atrazine dissipation (100 mg·L−1) in vadose zone sediment slurries. Sediments were from 11.3 to 14.6 m depths in an atrazine-contaminated groundwater area. The slurries and autoclave-sterilized slurries were sonicated (bath, 43 kHz, 320 W) for 0, 5, 10, 20, or 30 min once/twice a ...

Colonization of a biofertilizer Bacillus sp. OYK strain, which was isolated from soil, compared with three rhizospheric and endophytic strains to evaluate the colonization potential different origin. Surface-sterilized seeds tomato (Solanum lycopersicum L. cv. Chika) were sown in sterilized vermiculite, four each inoculated onto seed zone. After cultivation phytotron, plant growth parameters po...

The fungus Gnomonia comari, causal agent of strawberry leaf blotch, was inoculated at the crown of young axenized strawberry plants growing in sterilized sand. Only the roots were colonized, and the infection was symptomless. When the fungus colonized the roots in the presence of the root lesion nematode Pratylenchus penetrans, the plants were extremely stunted and their root system was necroti...

Abstract Inoculation of plants with plant growth-promoting bacteria (PGPB) is an ecological approach to improve growth and yield. The objective this study was screen native PGPBs in tomato root rhizosphere evaluate their performance germination seedlings the greenhouse western region Cameroon. Isolates were selected based on ability solubilize phosphate, produce indole-3-acetic acid, seed seedl...


 The study assessed the removal of total petroleum hydrocarbon (TPH) and polyaromatic hydrocarbons (PAHs) from spent engine oil (SEO) contaminated soil through bioenhancement bacteria isolated SEO polluted soil. Sterilized was subjected to a three level contamination before addition sterilized biostimulants including powdered cow dung (CD), cocoa pod husk (CPH) compost (made fresh CPH CD)...

This study was undertaken to determine the effect of the sterilization process and the age of the medium at the time of inoculation on the development of Clostridium botulinum type 62A. Whole milk was autoclaved at 121 C for 18 or 30 min and inoculated with C. botulinum so as to contain 2,000 to 5,000 spores per milliliter. No effort was made to remove dissolved oxygen or to reduce the oxidatio...

Electron paramagnetic resonance (EPR) spectroscopy was used for examination of free radicals in thermally treated vaselinum album (VA). Thermal treatment in hot air as sterilization process was tested. Conditions of thermal sterilization were chosen according to the pharmaceutical norms. Vaselinum album was heated at the following conditions (T--temperature, t--time): T = 160°C and t = 120 min,...

The reasons for using sterilized pus in the place of autogenous or other vaccines are : 1. The great simplicity and cheapness. 2. The pus is truly autogenous, this is not so with vaccines prepared from organisms grown on artificial media; for the organism is changed by such growth. 3. Besides the bacteria, pus contains toxins, and antibodies both extremely useful for therapeutic inoculation. Th...