High-yield Cultivation Techniques of Stevia rebaudiana(Bertoni) Hemsl. in Gannan Area of Jiangxi Province

In order to expand the production of Stevia rebaudiana( Bertoni) Hemsl.,the main points of high-yield cultivation techniques of a two-year-old stevia cultivar Shoutian No. 3 in Gannan area of Jiangxi Province were summarized: cutting and transplanting in early spring; fine management,applying more basic and additional fertilizers and retaining stubbles two times in summer,retaining roots for seeding in late autumn,and mulching membrane for safe overwintering in winter. This study will provide practical guidance for the planting of S. rebaudiana in Ganzhou,Jiangxi Province.

厌氧真菌和甲烷菌共培养的研究进展

厌氧真菌是自然界中降解植物纤维素类物质最高效的微生物之一。近年来,大量厌氧真菌和甲烷菌共培养菌株被分离。共培养中,甲烷菌通过对厌氧真菌代谢产物的利用显著提高厌氧真菌对木质纤维素的降解;厌氧真菌通过为甲烷菌提供能量和营养物质使甲烷菌快速生成大量甲烷。全面深入地了解共培养中两者的互作关系以及共培养降解木质纤维素产甲烷的特性,将有助于研究对木质纤维素降解以及甲烷生成的调控。因此,本文主要综述了共培养的分离鉴定、多样性、互作关系以及对木质纤维素的降解。