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Research Journal of Microbiology
  Year: 2012 | Volume: 7 | Issue: 6 | Page No.: 309-318
DOI: 10.3923/jm.2012.309.318
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Diversity and Morphology of Bacterial Community Characterized in Topsoil Samples from the Gaza Strip, Palestine
A.H. Bashir

The aim of this research was to identify the allocation of bacterial communities and their characteristics in various topsoil samples existing in the Gaza Strip. The diversity of bacterial communities in six major soil types in the Gaza Strip was investigated. Eighteen samples of topsoil were collected during winter season (Dec. 2011-Jan. 2012, Temp. range 10-15°C) and were analyzed for bacterial type, abundance and sporulation titer. The characterization of bacteria was done according to morphological characteristics and some biochemical tests such as starch hydrolysis, catalase, oxidase, indol and glucose fermentation. The viable bacterial average count in all soil types was (4.09±4.15)x106 CFU g-1 dry soil as ten times higher than Sporulation titer (0.270±0.226)x106 CFU g-1 dry soil. The ability of bacteria to resist environmental stresses by formation of endospores was characteristics an all types of soil, however in different percentages Assessment of bacterial communities studied in different topsoil samples demonstrated a high diversity. Bacteria identified in eighty bacterial isolates of each topsoil sample analyzed were found to belong to various genera as Bacillus, Micrococcus, Staphylococcus, Streptomyces, Aeromonas, Pseudomonas, Acinetobacter, Escherichia, Xanthomonas and Moraxella. These identified bacterial isolates are members of families of highly natural occurring in soil such as Bacillaceae, Micrococcaceae, Staphylococcaceae, Streptomycetaceae, Aeromonadaceae, Pseudomonadaceae, Moraxellaceae, Enterobacteriaceae and Xanthomonadaceae.
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How to cite this article:

A.H. Bashir , 2012. Diversity and Morphology of Bacterial Community Characterized in Topsoil Samples from the Gaza Strip, Palestine. Research Journal of Microbiology, 7: 309-318.

DOI: 10.3923/jm.2012.309.318








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