Exploiting diversity and synthetic biology for the production of algal biofuels

Modern life is intimately linked to the availability of fossil fuels, which continue to meet the world's growing energy needs even though their use drives climate change, exhausts finite reserves and contributes to global political strife. Biofuels made from renewable resources could be a more sustainable alternative, particularly if sourced from organisms, such as algae, that can be farmed without using valuable arable land. Strain development and process engineering are needed to make algal biofuels practical and economically viable.     

Effect of colchicine on polymerization of tubulin from rats, mice, hamsters and guinea-pigs.

Colchicine-inhibition of polymerization of tulbulin from rats, mice, golden hamsters and guinea-pigs was studied to determine if species differences in tubulin sensitivity to colchicine might parallel species variation in colchicine toxicity. It was found that polymerization of tubulin is nearly equally sensitive to colchicine in all four species.     

柳杉树轮δ~(13)C与气候要素的分析与应用

<正>对采自气候为非限制性因子地区的柳杉树轮稳定碳同位素比 δ１３ Ｃ进行气候响应分析。用排除法消除大气二氧化碳中δ１３Ｃ的变化对柳杉树轮δ１３Ｃ变化的影响后,建立残差年序列ＲＥ,并结合西天目山气象站的气象记录,分析了树轮δ１３Ｃ年序列对气候要素的响应。结果表明：西天目山地区树轮 δ１３Ｃ的高频振荡与 １１、１２月最高气温的平均值,１、２、３月降水总和以及６、７月降水总和显著相关,在一定程度上反映了东亚季风对该区的影响大小。可见气候非限制性因子地区树轮稳定碳同位素组成年序列同样可以作为气候变化指针。     

Effect of colchicine on polymerization of tubulin from rats,mice, hamsters and guinea-pigs

Summary Colchicine-inhibition of polymerization of tubulin from rats, mice, golden hamsters and guinea-pigs was studied to determine if species differences in tubulin sensitivity to colchicine might parallel species variation in colchicine toxicity. It was found that polymerization of tubulin is nearly equally sensitive to colchicine in all four species.This work was supported by PHS Grant No. CA 16425.