Results 11 to 20 of about 5,276 (155)
Background – The caninised monoclonal antibody lokivetmab (LKV), directed at interleukin (IL)‐31, is very effective at controlling pruritus in most dogs with atopic dermatitis (AD). However, evidence exists that IL‐31 is not required for the induction of acute allergic skin inflammation, which might explain why this treatment is less efficacious in ...
Chie Tamamoto‐Mochizuki +4 more
wiley +1 more source
Factors that shape large‐scale gradients in clonality
Abstract Aim Many plant species reproduce clonally. However, ecologists still have much to learn about the factors that shape large‐scale patterns in plant clonal growth and reproduction, especially in the southern hemisphere. We addressed this knowledge gap by quantifying relationships between reproductive mode and a suite of plant characteristics and
Hongxiang Zhang +4 more
wiley +1 more source
General‐purpose genotypes and evolution of higher plasticity in clonality underlie knotweed invasion
Summary Many widespread invasive plant species express high phenotypic variation across novel environments, providing a unique opportunity to examine ecological and evolutionary dynamics under global change. However, studies often lack information about the origin of introduced populations, limiting our understanding of post‐introduction evolution.
Shengyu Wang +15 more
wiley +1 more source
Characterization and cloning and expression of Polyphenol Oxidase (PPO) from Canarium album [PDF]
多酚氧化酶(EC.1.14.18.1)广泛存在于动物、植物和微生物体内,是一种由核基因编码的含铜金属酶。它是果蔬储藏和加工过程中酶促褐变的重要酶类,能够催化酚类物质的氧化。以橄榄(长营)为原料提取多酚氧化酶进行了分离纯化,得到比活力为1834U/mg的多酚氧化酶粗酶液。研究橄榄多酚氧化酶的理化性质,酶的pH和最适温度分别为6.0和30℃,酶在低于60℃和在pH4.0~8.0范围内较稳定;在30℃、pH6.0条件下,多酚氧化酶催化L-DOPA氧化反应的Km为3.884mmol/L ...
王会芳
core
Clone、construction and expression of Synechocystis sp.PCC 6803 Acetyl- CoA carboxylase gene for fat production [PDF]
在化石燃料日益枯竭、环境污染逐渐威胁人类生存的今天,生物柴油在提供可再生能源的同时还可以减少温室气体,从而受到世界各国的广泛重视。蓝藻为光合自养微生物,是大气碳循环主要贡献者,其生物柴油产量是油料作物的8~24倍。乙酰辅酶A羧化酶(acetyl-coenzymeAcarboxylase,ACCase)是生物体内脂肪生物合成的关键酶,研究发现,过量表达ACCase能够促进生物体脂肪的合成。相对于蓝藻,大肠杆菌具有遗传背景清楚、生长速度快等特点 ...
周赞虎
core
Long‐term use of lokivetmab in dogs with atopic dermatitis
Background – Lokivetmab, a caninised monoclonal antibody against interleukin (IL)‐31, is an effective treatment for the pruritus associated with canine atopic dermatitis (cAD). Objectives – To investigate the efficacy and safety of lokivetmab during long‐term treatment defined as at least three consecutive lokivetmab injections in atopic dogs under ...
Bettina Kasper +2 more
wiley +1 more source
Identification of Rice Dwarf Mutant and Fine Mapping of mhd1 Gene [PDF]
株高是水稻株型重要的组成因子,直接关系到水稻的产量,株高过高易引起植株倒伏导致减产,适当矮化则可以达到抗倒、增产的目的。虽然目前已经鉴定不少与水稻矮秆相关的基因,但是能够在生产上实际应用的矮秆主基因仍以sd1为主。因此,寻找和创造能在生产上利用的矮秆种质资源以及研究矮化相关机制具有重要的理论和实践意义。 本研究的材料源于籼稻品种闽恢3301经EMS诱变产生的小粒矮秆突变体,暂命名为mhd1(Minhui3301dwarf1)。mhd1表现出多个异常表型,包括植株矮化、叶片直立变宽、叶色深绿、穗和谷粒较小,
陈伟刚
core
Study on Gene Cloning, Expression and Characterization of Stylicin and Invertebrate Lysozyme in Marsupenaeus japonicus [PDF]
日本囊对虾(Musupenaeusjaponicus)是我国沿海重要养殖对虾品种,具有非常高的经济价值。近年来日本囊对虾养殖规模受病害影响停滞不前,尤其是白斑综合症病毒(WSSV)等病毒性对虾病对日本囊对虾养殖产业造成严重的经济损失。目前,对虾病毒病的预防和治疗的方法效果均十分有限,而滥用乱用药物易诱发水质污染和药物残留等严重问题。因此,尽快找到环保高效的治疗方法与策略,成为当前海水对虾养殖产业迫切需要解决的重要科学问题。抗菌肽(AMPs)是对虾抵御病原入侵的一类重要的非特异性免疫成分,其抗细菌、真菌 ...
刘洪涛
core
Ecological Function and Environmental Adaptation Mechanisms of Pelagic Archaea in Typical Areas of China Seas [PDF]
浮游古菌是海洋微型生物的重要组成之一。在真光层以下的深海大洋,海洋泉古菌MarineGroupI(MGI)类群的生物量可占总原核生物量的20%。最近,环境基因组学研究的突破性进展和海洋泉古菌MGI类群纯培养株系的获得揭示出大部分MGI类群都是氨氧化古菌(Ammonia-OxidizingArchaea,AOA)。由于MGI类群是海洋中数量最为丰富的微型生物之一,其必然在海洋碳、氮循环中起着重要作用,目前AOA已成为环境微生物生态学的研究热点之一 ...
胡安谊
core

