【摘 要】
：
The spatiotemporal balance between stem cell maintenance,proliferation,and differentiation determines the rate of root growth,and is controlled by hormones including brassinosteroid (BR) and auxin.How
【机 构】
：
Department of Plant Biology,Carnegie Institution for Science,Stanford,CA 94305;Department of Biology
【出 处】
：
The 2nd International Brassinosteroid Conference(第二届国际油菜素甾醇会
论文部分内容阅读
The spatiotemporal balance between stem cell maintenance,proliferation,and differentiation determines the rate of root growth,and is controlled by hormones including brassinosteroid (BR) and auxin.However,the spatial actions of BR and its interactions with auxin remain unclear in roots.Through microscopic and genetic analyses,we discover a spatial pattern of low level of nuclear-localized BR-activated transcription factor BZR1 in the stem cell niche and high level of BZR1 in the transition-elongation zone,which are required for the normal cell behaviors in the quiescent center (QC) and the elongation zone,respectively.This BZR1 pattem requires local BR catabolism and auxin synthesis,as well as BR signaling.
其他文献
引言 利用真核表达载体与哺乳动物细胞系表达鹅细小病毒(Goose parvovirus,GPV)结构蛋白VP2,形成病毒样颗粒(Virus-like particles,VLPs),探究其在鹅外周血淋巴细胞(Peripheeral blood lymphocyte,PBLs)中引起的细胞免疫应答.材料与方法 GPV由四川农业大学预防兽医研究所提供；GPV多抗血清由本研究中心制备；鼠源His标签抗体
Introduction Pasteurella multocida is a generally isolated and veterinary bacterial pathogen of great importance.Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) is an adaptive immun
引言 减毒沙门氏菌能诱导宿主产生体液、细胞及长期记忆免疫反应,被许多科学家用以开发递送其它疫苗的载体[1],目前的研究主要集中在其作为蛋白抗原递送的平台上.本实验构建一种可调控的基于水解沙门氏菌肽聚糖的特殊酶的新颖沙门氏菌裂解系统,用于专门递送全新的鸭瘟病毒DNA疫苗,经口免疫麻鸭,检测该重组疫苗诱导免疫应答情况及其保护效果,评价其作为鸭瘟病毒疫苗的潜力.
引言 鼠伤寒沙门氏菌的宿主分布广泛,可感染各类家禽、家畜,引发局部性胃肠炎,亦可感染人类,在人畜之间经行交叉传播,是公共卫生的一大隐患.目前,疫苗接种仍是预防沙门氏菌感染的最有效方法,此外,减毒沙门氏菌作为疫苗载体正受到广泛的关注[1].本研究的主要目的是通过对甘露糖(mannose)代谢相关基因的缺失,以及组合搭配其它重要代谢基因的缺失或调控表达,以期获得既能充分暴露沙门氏菌自身保护性抗原又可递
BAK1(BRI1 Associated receptor Kinase 1) is a plant LRR receptor kinase(RK) that interacts with multiple ligand-binding LRR-RKs to enhance their functions.BAK1 is involved in brassinosteroid-dependent
Light and brassinosteroid(BR)are two central stimuli that regulate plant photomorphogenesis.Although previous phenotypic and physiological studies have implied possible interactions between BR and lig
A trade-off between growth and immunity exists in plants,leading to the idea that these processes are controlled by interconnected signaling pathways.This trade-off needs to be finely regulated to ens
Pathogen-associated molecular patterns (PAMPs) derived from microbes are recognized by plant pattern-recognition receptors to activate PAMP-triggered immunity (PTI).Mitogen-activated protein kinases (
Brassinosteroids (BRs) regulate a wide range of physiological processes.Physiological analysis showed that high BR concentration or enhanced BR signaling induce the differential growth of etiolated hy
Plant growth and development are coordinated by many hormonal and environmental signals.The extensive studies of Brassinosteroid (BR) signaling network have uncovers the cross talk between BR and othe