堆肥是目前处理畜禽粪便最有效的方法.但由于堆体中富含纤维素,传统堆肥时间长,影响堆肥效率,在堆肥过程中加入高效纤维素降解菌是提高堆肥效率的有效途径.本研究采用刚果红透明圈法和滤纸条崩解试验,从牛粪、羊粪、菌渣、腐烂秸秆等样品中筛选降解纤维素菌株,通过测定菌株发酵上清液全酶活力(FPA)、内切酶活(CX)、外切酶活(Cl)以及β-葡萄糖苷酶活(β-Gase)等,获得3株纤维素优势降解菌,并对其进行形
目的：确定厌氧细菌Alkalitalea saponilacus产木聚糖酶所需碳源,优化粗酶提取条件并分析酶学特性.[方法]应用GC技术分析A.saponilacus以木聚糖为底物发酵的终产物,利用二硝基水杨酸法(DNS)测定木聚糖酶活以获得最佳碳源组合、优化粗酶提取最佳条件和酶学性质.结果：A.saponilacus以源自燕麦、桦木和榉木的木聚糖为底物发酵时,其终产物主要为丙酸(90％以上).该
U6 snRNA,as an essential component of the catalytic core of the pre-mRNA processing spliceosome,is heavily modified post-transcriptionally with 2-O-methylation being most common.
Chemical modifications in tRNA impact its structure,ribosome binding affinity and codon deciphering,especially at positions of the anticodon stem loop(ASL).
动脉粥样硬化(Atherosclerosis,AS)是一种与脂类代谢障碍有关的,以大中动脉内膜脂质沉积、粥样斑块形成、纤维组织增生、管壁硬化为特征,多种因素相互作用下发生的一种全身性慢性炎症性血管疾病。长链非编码RNA(long noncoding RNA,lncRNA)是一类存在于细胞核或细胞质内长度大于200nt,不编码蛋白质的线性RNAs,最新研究发现lncRNA通过参与血管内皮细胞的增殖、
动脉粥样硬化是一种多因素诱导的由动脉内皮细胞损伤或功能障碍启动的动脉壁的慢性炎症反应。近年来发现长链非编码RNA ZFAS1通过多种机制在各肿瘤进展中发挥促进作用,此外,lncRNA ZFAS1 也参与心肌细胞收缩的调控。但其在动脉粥样硬化中的作用还未明确。本研究拟初步探讨其在血管内皮细胞中的作用。
The 5 months male SD rats as the young control group,23 months homologous strain rat are randomly divided into aged control group、aged Tonifying Kidney(Zuogui Pill)group,aged Yi Qi(Yiqi Smart Decoctio
Cancer stem cells(CSCs)are a group of malignant tumors characterized by self-renewal,differentiation potential,high tumorigenicity and high drug resistance.
Krüppel like factor 7(KLF7)inhibits preadipocyte differentiation and promotes proliferation in chicken.In our previous study,using ChIP-seq,a KLF7 binding peak which located in-96 nt upstream of the t
The exosome functions in the degradation of diverse RNA species,yet how it is negatively regulated remains largely unknown.