Extracellular Enzyme Activity of Sclerotia-forming and Non-Sclerotia-forming Morchella Strains

The extracellular enzyme activities of sclerotia-forming and nonsclerotia- forming single spore strains of Morchella conica and M. crasspies were determined and compared. The non sclerotia-forming strains of M. conica exhibited higher aver- age activities of protease, catalase and xylanase but lower laccase activity than those of sclerotia-forming strains. However, the differences did not reach significance level. The soluble amylases activity of M. crasspies was significantly higher than that of M. conica, while the mean activity of other enzymes had differences between them, but the differences did not reach significance level.

为桐油设计商标

我们研学活动的第一站是徐复隆商行。研学老师对我们说:'这栋‘窨子屋’已经有三百多年的历史了。你们知道它为什么还保存得如此完好吗?'同学们一脸茫然,不知怎么回答。老师赶紧解释说:'还是让我来告诉你们吧,这栋房屋的柱子、地板、墙壁都是用我们洪江生产的桐油漆过的,可以防虫、防水、防腐。