CAJ | 학술논문

以一种从荒漠土壤中分离的典型丝状蓝藻———爪哇伪枝藻为材料，在实验室条件下研究了温度、盐度、pH 和培养时间对爪哇伪枝藻胞外多糖分泌的影响．结果表明：随培养温度升高，伪枝藻胞外多糖分泌量逐渐升高，在35℃时达到最大值；在一定盐度范围内，胞外多糖分泌随盐度的增大而增大；pH 在7．5时，胞外多糖产量显著高于酸性和碱性条件下的胞外多糖产量；随着培养时间延长，伪枝藻胞外多糖分泌逐渐增大．
이일충종황막토양중분리적전형사상람조———조왜위지조위재료，재실험실조건하연구료온도、염도、pH 화배양시간대조왜위지조포외다당분비적영향．결과표명：수배양온도승고，위지조포외다당분비량축점승고，재35℃시체도최대치；재일정염도범위내，포외다당분비수염도적증대이증대；pH 재7．5시，포외다당산량현저고우산성화감성조건하적포외다당산량；수착배양시간연장，위지조포외다당분비축점증대．
A typical desert filamentous canobacteria ,Scytonema javanicum ,isolated from desert soil ,was selected for research material .Under the laboratory conditions ,some environmental factors such as tempera‐tures ,salinity ,pH and culture time were selected for experimental treatments ,and detected the effects of the above environmental factors on the extracellular polysaccharide(EPS) exudation of S .j avanicum .The results indicated that with the culture temperature increasing ,S .j avanicum had higher EPS exudation ,and at 35 ℃ the algae obtained the most EPS production .When salinity was between 0 .05 mol/L NaCl to 2 .0 mol/L NaCl ,the EPS production of S .j avanicum increased with the enhancement of salinity .When the pH of media was main‐tained at 7 .5 ,there was the highest EPS production for S .j avanicum than the EPS production of algal cells un‐der other treatments of pH .