文献综述-能源植物柳枝稷CCCH类抗逆基因的筛选要点.docVIP

专业文献综述 题 目: 能源植物柳枝稷CCCH类抗逆基因的筛选与功 能分析 姓 名: 薄韶云 学 院: 草业学院 专 业: 草业科学 班 级: 草业121班 学 号: 指导教师: 职称: 2015年 6 月 22 日 南京农业大学教务处制 能源植物柳枝稷CCCH类抗逆基因的筛选与功能分析 摘要：柳枝稷(Panicum virgatum)是起源于北美的一种多年生其生长迅速,种植成本低,对环境适应性强木质纤维素含量极高,其乙醇转化率可达到57%。近年来，因柳枝稷生物学产量和乙醇产率高，已成为国际上重要的生物能源植物。为了进一步提高柳枝稷对边际和退化土地的适应能力，提高其生物产量，有必要进一步增强其抗逆性。Screening and functional analysis of the energy plant switchgrass CCCH-type stress tolerance genes Abstract：Switchgrass (Panicum virgatum) originated in North America, a perennial tall savannah grass, with excellent forage characteristics and soil conservation functions. It has rapid growth rate, environmental adaptability and high lignocellulose content, but requires low planting cost. The ethanol conversion efficiency from switchgrass biomass can reach as high as 57%. Energy plants are the basis of bio-energy sectors. In recent years, switchgrass has been recognized as an important bio-energy plants internationally and the primary bio-energy plant in the US. To further improve the adaptability and biomass yield in marginal lands, tremendous efforts have been put in the area of grass abiotic stress resistance research. The CCCH-type genes comprise of an important genetic component for plant stress resistance. In this review, we discussed the screening and functional analysis of the CCCH genes and its recent research progress in switchgrass for the better use of these genes. Key words: Panicum virgatum；energy plants；CCCH-type genes；stress tolerance 随着世界经济与社会的迅速发展，人们对能源的需求量日益增。化石能源消耗以及导致的大气污染、全球气候变暖一系列问题迫使人们寻找传统能源的替代品。美国对其经济效益及商业潜能进行了深入研究,研究者认为柳枝稷是一种理想的生物燃料作物柳枝稷隶属于禾本科黍属,是一种多年生暖季型草本植物,靠种子繁殖后代,地下茎和根非常发达,常超过2m,植株因品种和当地气候不同株高50～250cm。其为北美的本土植物,从墨西哥一直到加拿大皆有分布,北