Comparison of physiological patterns and genetic expression of Chlorella sorokiniana from different environmental regions with nitrogen deprivation

Nitrogen (N)-deprivation plays important role for lipid accumulation in microalgae. Here we report the comparative physiological and genetic analyses of Chlorella sorokiniana strains from different environmental regions of arctic glacier (Chlorella-Arc), desert soil (Chlorella-Des) and temperate native lake (Chlorella-Nat) in response to N-deprivation, for screening the optimal strain for biodiesel production.

氮饥饿（N-deprivation）在微藻脂质积累过程中发挥重要作用。本研究针对分别来自北极冰川（Chlorella-Arc）、荒漠土壤（Chlorella-Des）及温带天然湖泊（Chlorella-Nat）的三株索氏小球藻（Chlorella sorokiniana），开展了其响应氮饥饿胁迫的比较生理学与遗传学分析，以期筛选出适用于生物柴油生产的最优藻株。