Dynamic Changes of Pectin Epitopes in Cell Walls during the Development   of the Procambium-Cambium Continuum in Poplar

doi:10.3390/ijms18081716

CORC > 北京大学 > 生命科学学院

	Dynamic Changes of Pectin Epitopes in Cell Walls during the Development of the Procambium-Cambium Continuum in Poplar
	Liu, Jundi ; Hou, Jie ; Chen, Huimin ; Pei, Keliang ; Li, Yi ; He, Xin-Qiang
刊名	INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
	2017
关键词	procambium cambium pectin PME Populus tomentosa POLLEN-TUBE GROWTH POPULUS DELTOIDES DEVELOPING WOOD ARABIDOPSIS METABOLISM METHYLESTERASE ROOT POLYSACCHARIDES LOCALIZATION GALACTAN
DOI	10.3390/ijms18081716
英文摘要	The change of pectin epitopes during procambium-cambium continuum development was investigated by immunolocalization in poplar. The monoclonal antibody JIM5 labels homogalacturonan (HGA) with a low degree of esterification, and the monoclonal antibody JIM7 labels HGA with a high degree of methyl-esterification. Arabinan, rather than galactan, and HGA with low degree of esterification were located in the cell walls of procambial, while HGA with a low degree of esterification was located in the tangential walls, and galactan was located in both the tangential and radial walls of procambial, yet nearly no arabinan was located in the tangential walls of the cambial cells. The changes in pectin distribution took place when periclinal divisions appeared within a procambial trace. The distribution difference of pectin epitopes was also present in procambium-cambium derivatives. The arabinan existed in all cell walls of primary xylem, but was absent from the tangential walls of secondary xylem cells. The galactan existed only in mature primary phloem. Furthermore, 19 pectin methylesterases (PMEs) genes were identified by RNA sequencing, six genes presented highly differentially and were supposed to be involved in the cell wall esterification process. The results provide direct evidence of the dynamic changes of pectin epitopes during the development of the procambium-cambium continuum in poplar.; National Natural Science Foundation of China [31570581]; SCI(E); ARTICLE; 8; 18
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/471655]
专题	生命科学学院
推荐引用方式 GB/T 7714	Liu, Jundi,Hou, Jie,Chen, Huimin,et al. Dynamic Changes of Pectin Epitopes in Cell Walls during the Development of the Procambium-Cambium Continuum in Poplar[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2017.
APA	Liu, Jundi,Hou, Jie,Chen, Huimin,Pei, Keliang,Li, Yi,&He, Xin-Qiang.(2017).Dynamic Changes of Pectin Epitopes in Cell Walls during the Development of the Procambium-Cambium Continuum in Poplar.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES.
MLA	Liu, Jundi,et al."Dynamic Changes of Pectin Epitopes in Cell Walls during the Development of the Procambium-Cambium Continuum in Poplar".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2017).