Streptomyces griseorubens C-5对堆肥木质纤维素降解及微生物群落代谢的影响

为促进堆肥中木质纤维素降解，并了解其中微生物群落代谢功能多样性，主要采用Biolog—ECO平板法，研究添加灰略红链霉菌（Streptomyces griseorubens）C-5对堆肥中木质纤维素降解及微生物群落代谢能力的影响。结果显示：堆肥结束时，接菌处理的堆肥中木质素、纤维素和半纤维素的降解率分别比对照组（自然堆肥）提高29．94％、18．78％、12．77％；平均色度变化（AWCD）分析表明，接种处理可增加堆肥微生物的细胞代谢能力，尤其能提高堆肥中后期微生物群落对酯类和多聚物类碳源的代埘能力；主成分分析（PCA）结果显示，接种可提高微生物对氢基化合物、氨基酸和双亲化合物等碳源的代谢能力。

聚合物和纤维复掺对砂浆抗裂性能的影响研究

外墙涂料易于开裂的主要原因在于砂浆的开裂,利用单因素方法,在普通砂浆中加入2种聚合物、木质纤维素、膨胀剂和减水剂配制一种抗裂建筑砂浆。性能测试表明,该砂浆与普通砂浆相比,强度损失和质量损失均较小,各项技术指标达到标准要求,在实验室条件下该砂浆能够防止外墙涂料开裂。

构菌营养生理的研究

测定了5株构菌(绒火菇[Flammulina velutipes])在木屑麦麸基物上生长过程中,基物中有机质及木质纤维素的降解和几种胞外多糖分解酶活性的变化。结果表明,构菌能够分解纤维素和半纤维素。但在栽培条件下构菌分解纤维素和半纤维素的能力很弱,木质素几乎不被降解利用。故利用锯末—麦麸培养基栽培构菌时,麦麸是构菌的主要营养源(碳源和氮源)。另外不同菌株分解基物中有机质的能力也不同。 构菌的木聚糖酶、羧甲基纤维素酶和淀粉酶活性均较高,该三种酶活性存在于构菌整个生长周期。

Breeding of Transgenic Hybrid Cotton Variety‘Yumian 50' and Cultivation Technology

The mid-early-maturing new cotton variety ＇Yumian 50＇ was bred by In-stitute of Industrial Crops, Henan Academy of Agricultural Sciences. It was exam-ined and approved by Henan Provincial Crop Variety Approval Committee in 2016 （Yushenmian 2016002）. In order to study the variety characteristics of ＇Yumian 50＇ and the key points of its cultivation technology and accelerate its application in cot-ton production, the breeding process of ＇Yumian 50＇ was described in this paper. The test data of 26 times for 3 years of ＇Yumian 50＇ participating in Henan region-al tests in 2012-2014 were summarized. The results showed that ＇Yumian 50＇ had outstanding performance in Henan regional tests and production tests. ＇Yumian 50＇ is a new cotton variety with characteristics of high yield, good quality and high re-sistance to diseases and pests.

Commercial Application of Properly Treated Wastewater Discharged from Ethylene Plant

The wastewater discharged from the 1.0 Mt/a ethylene unit at Maoming Petrochemical Company was separated according to its quality, and a major part ofwastewater with better quality was properly treated via the process of＂IRABF ＋ high-efficiency fiber filtering ＋ disinfection＂ to make the wastewater quality comply with the quality of recycled cooling water, so that the technique for reused petrochemical wastewater was more reliable technically and more reasonable economically,

投资神奇毛巾 助你赚足“巾”钱

没有考上理想的大学，高中毕业后，活泼开朗的孟捷开始为就业发愁，家里没有什么关系，一切只能靠自己了，刚开始几个月，孟捷跑了很多家单位，但是马上她的梦想被现实击得粉碎。一没有学历，二没有经验，没有一家像样的公司为她敞开大门。