Open AccessAcclimatization of freshwater bacillus diatomas Navicula sp. for living in salty waters
Author(s) -
Ahmed Ibrahim Jessim,
Ahmed Edan Al Hussainy
Publication year - 2014
Publication title -
maǧallaẗ markaz buḥūṯ al-taqniyyaẗ al-aḥyāʾiyyaẗ
Language(s) - English
Resource type - Journals
eISSN - 2708-1370
pISSN - 1815-1140
DOI - 10.24126/jobrc.2014.8.2.341
Subject(s) - navicula , acclimatization , significant difference , zoology , chemistry , biology , phosphorus , food science , environmental chemistry , horticulture , botany , algae , statistics , mathematics , organic chemistry
Bacillus diatoms. Navicula sp. were isolated from fresh water (Tigris River) and were acclimated progressively to grow in salty environment with alkaline media pH = 9. Bacillus diatoms Showed very good ability to acclimate for living in gradient salty water starting from 0.5 - 5 ppt. of samples of underground water containing Total Nitrogen 2.25, 1.07, 0.952, 9.005, 0.53 ppm, respectively, and Total Phosphorus 1.58, 1.61, 1.75, 0.565, and 0.785 ppm. consumed of TN: TP in ratio16:1 as in the following results 0.01, 0.02, 0.05, 1.005,0.01 ppm. for TN and 1.439, 1.327, 1.68, 0.065, 0.755 ppm. for TP. by using Least significant difference-LSD test, results showed significant differences for decreasing cells when the value of P <0.05 for increasing of adapted cells in ground water with gradually salty concentrations also for reducing TN before and after experiment, also a significant difference for reducing P in sample (4) of ground water in concentration 0.565 ppm before experiment which reduced to 0.065 ppm after experiment.