原核生物中土霉味化合物二甲萘烷醇和2-甲基异茨醇生物合成研究进展

摘要

The occurrence of off-flavor problems caused by prokaryotes cyanobacteria and actinomycetes is a worldwide water and food quality issue. Based on literatures on two earthy-muddy-smelling metabolites, ( I. E. , geosmin and 2-methylisoborneol (2-MIB) ) , we reviewed their chemical characteristics, biosynthetic pathways, genes and enzymes that are involved in biosynthesis. Then we discussed current research questions related to off-flavor and future directions. Finally, we addressed the significance of probable key regulatory mechanism for the production and release of geosmin and 2-MIB, which could provide more scientific strategies to better control off-flavors outbreaks in drinking and aquaculture water.%由原核生物蓝藻和放线菌引起的水体土霉异味问题备受世界的关注.本文以土霉味化合物二甲萘烷醇和2-甲基异茨醇的研究历史为主线,综述了土霉味化合物二甲萘烷醇和2-甲基异茨醇的化学特性、生物合成途径以及生物合成相关基因和酶等方面的研究进展,探讨了土霉味化合物二甲萘烷醇和2-甲基异茨醇生物合成研究的重要意义,并展望了土霉味化合物二甲萘烷醇和2-甲基异茨醇生物合成研究存在的问题及发展的方向.