Investigation of diazotrophic endopytes in sugar-rich crops

人类引起的气候变化可能是人类有史以来面临的最大环境挑战。减少温室气体排放的解决方案之一是更多地依赖生物、环境和经济上有效的生物燃料。尽管北美非常重视从玉米和小麦中提取的生物乙醇，但没有解决生产这些作物所需的投入所产生的温室气体排放问题，温室气体减排将微乎其微。氮肥的生产和使用是这些作物生产中产生温室气体的最大单一来源。这在很大程度上是因为在田间施用后，一定比例的氮肥被转化为一氧化二氮，作为温室气体，一氧化二氮的威力是二氧化碳的300倍。

Human-induced climate change maybe the greatest environmental challenge ever faced by humankind. Amongst the solutions to decrease greenhouse gas emissions is a greater reliance on biologically, environmentally, and economically effective biofuels. Although much emphasis in North America has been put on bioethanol derived from corn and wheat, without addressing the greenhouse gas emissions derived from the inputs required to produce these crops, the greenhouse gas savings will be marginal. The production and use of nitrogen (N) fertilizer is the single largest source of greenhouse gas production in the production of these crops. This is largely due to the fact that after its application in the field a proportion of N fertilizer is converted to nitrous oxide, a gas which is 300 times more powerful than carbon dioxide as a greenhouse gas.