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
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
The terpenoid,small-compound strigolactones (SLs) are plant hormones that regulate plant shoot branching,which is an important agronomic trait that determines crop yields.The importance of plant hormo
Plant growth and development are highly regulated processes that are coordinated by hormones.One class that participates is the brassinosteroids (BRs),a group of steroids with structural similarity to