摘要
根据单细胞生物分批培养过程中比生长速率(μ)的变化,其生长曲线分为延滞期、加速期、对数期、减速期、稳定期和衰亡期6个时期。与其他生长时期相比,在减速期生物的生长、基质的利用、产物的合成和基因表达谱等方面有显著的不同,并对发酵生产有着重要作用。然而,长期以来,对减速期的认识和教学相当薄弱,亟需加强对减速期的认识和教学。
The growth curve of single cell organisms in batch cultivation could divide into 6 phases, lag phase, acceleration phase, log phase, deceleration phase, stationary phase, and death phase, based on specific growth rate during cultivation process. There were significantly differences between deceleration phase and the other phases in cell growth, substrate consumption, product formation, and genes express profile. The deceleration phase was highly important to fermentation process. However, cognizing and teaching to the deceleration phase had been considerably weakened since a long period. So it should be strengthened.
出处
《微生物学通报》
CAS
CSCD
北大核心
2008年第3期432-435,共4页
Microbiology China
关键词
单细胞生物
分批培养生长曲线
减速期
生长动力学
产物合成
基因表达谱
Single cell organisms, Growth curve in batch cultivation, Deceleration phase, Growth kinetics,Product formation, Genes express profile