RHAMNOGALACTURONAN II: Structure and Function of a Borate Cross-Linked Cell Wall Pectic Polysaccharide

细胞壁 多糖 二聚体 化学 糖基 糖苷键 果胶 功能(生物学) 共价键 生物化学 纤维素 立体化学 生物 细胞生物学 有机化学
作者
Malcolm A. O’Neill,Tadashi Ishii,Peter Albersheim,Alan G. Darvill
出处
期刊:Annual Review of Plant Biology [Annual Reviews]
卷期号:55 (1): 109-139 被引量:876
标识
DOI:10.1146/annurev.arplant.55.031903.141750
摘要

▪ Abstract Rhamnogalacturonan II (RG-II) is a structurally complex pectic polysaccharide that was first identified in 1978 as a quantitatively minor component of suspension-cultured sycamore cell walls. Subsequent studies have shown that RG-II is present in the primary walls of angiosperms, gymnosperms, lycophytes, and pteridophytes and that its glycosyl sequence is conserved in all vascular plants examined to date. This is remarkable because RG-II is composed of at least 12 different glycosyl residues linked together by more than 20 different glycosidic linkages. However, only a few of the genes and proteins required for RG-II biosynthesis have been identified. The demonstration that RG-II exists in primary walls as a dimer that is covalently cross-linked by a borate diester was a major advance in our understanding of the structure and function of this pectic polysaccharide. Dimer formation results in the cross-linking of the two homogalacturonan chains upon which the RG-II molecules are constructed and is required for the formation of a three-dimensional pectic network in muro. This network contributes to the mechanical properties of the primary wall and is required for normal plant growth and development. Indeed, changes in wall properties that result from decreased borate cross-linking of pectin may lead to many of the symptoms associated with boron deficiency in plants.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
碧蓝曼冬完成签到 ,获得积分10
2秒前
在水一方应助杜兰特工队采纳,获得10
2秒前
研友_8K2QJZ发布了新的文献求助50
2秒前
onethree完成签到 ,获得积分10
3秒前
3秒前
一一应助吴大振采纳,获得20
6秒前
zz发布了新的文献求助10
6秒前
sjn完成签到,获得积分10
7秒前
7秒前
Cloud应助科研通管家采纳,获得10
7秒前
不配.应助科研通管家采纳,获得20
7秒前
深情安青应助科研通管家采纳,获得10
8秒前
彭于晏应助科研通管家采纳,获得10
8秒前
顾矜应助科研通管家采纳,获得10
8秒前
斯文败类应助科研通管家采纳,获得10
8秒前
Cloud应助科研通管家采纳,获得10
8秒前
阿泮完成签到,获得积分10
8秒前
田様应助科研通管家采纳,获得10
8秒前
SciGPT应助科研通管家采纳,获得10
8秒前
天天快乐应助科研通管家采纳,获得10
8秒前
小马甲应助科研通管家采纳,获得10
8秒前
思源应助科研通管家采纳,获得10
8秒前
Jasper应助科研通管家采纳,获得10
8秒前
英姑应助科研通管家采纳,获得10
9秒前
丘比特应助科研通管家采纳,获得10
9秒前
9秒前
JasVe完成签到 ,获得积分10
9秒前
9秒前
Kete完成签到 ,获得积分10
9秒前
9秒前
xjcy应助万有引力采纳,获得10
10秒前
Nathan完成签到 ,获得积分10
10秒前
舒心秋蝶完成签到,获得积分10
11秒前
金金完成签到 ,获得积分10
11秒前
14完成签到,获得积分10
11秒前
13秒前
吴明轩发布了新的文献求助30
15秒前
ZR14124完成签到,获得积分10
16秒前
浅音发布了新的文献求助10
16秒前
打打应助橙花采纳,获得10
17秒前
高分求助中
Sustainability in Tides Chemistry 2800
The Young builders of New china : the visit of the delegation of the WFDY to the Chinese People's Republic 1000
Rechtsphilosophie 1000
Bayesian Models of Cognition:Reverse Engineering the Mind 888
Handbook of Qualitative Cross-Cultural Research Methods 600
Very-high-order BVD Schemes Using β-variable THINC Method 568
Chen Hansheng: China’s Last Romantic Revolutionary 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3137211
求助须知:如何正确求助?哪些是违规求助? 2788244
关于积分的说明 7785274
捐赠科研通 2444247
什么是DOI,文献DOI怎么找? 1299869
科研通“疑难数据库(出版商)”最低求助积分说明 625606
版权声明 601023