15'2 Two views of primary cell walls - PowerPoint PPT Presentation

1 / 16
About This Presentation
Title:

15'2 Two views of primary cell walls

Description:

15.6 A structural model of a cellulose microfibril (Part 1) ... alcohol in the approximate ratio 100:70:7 and is typical of angiosperm lignin. ... – PowerPoint PPT presentation

Number of Views:56
Avg rating:3.0/5.0
Slides: 17
Provided by: taizand
Category:

less

Transcript and Presenter's Notes

Title: 15'2 Two views of primary cell walls


1
15.2 Two views of primary cell walls
2
15.4 Major structural components of the primary
cell wall and their likely arrangement
3
15.6 A structural model of a cellulose
microfibril (Part 1)
4
15.6 A structural model of a cellulose
microfibril (Part 2)
5
(No Transcript)
6
15.8 Model of cellulose synthesis by a
multisubunit complex containing cellulose synthase
7
15.5 Conformational structures of sugars
commonly found in plant cell walls (Part 1)
8
15.5 Conformational structures of sugars
commonly found in plant cell walls (Part 2)
9
15.10 Partial structures of common
hemicelluloses (Part 1)
10
15.11 Partial structures of the most common
pectins (Part 3)
11
15.11 Partial structures of the most common
pectins (Part 4)
12
15.13 Pectin structure (Part 2)
13
15.14 A repeated hydroxyproline-rich motif from
a molecule of HRGP from tomato
14
15.15 A highly branched arabinogalactan molecule
15
15.16 Action of xyloglucan endotransglucosylase
(XET)
16
  • lignin structure

Web Figure 13.3.A Partial structure of a
hypothetical lignin molecule from European beech
(Fagus sylvatica ). The phenylpropanoid units
that make up lignin are not linked in a simple,
repeating way. The lignin of beech contains units
derived from coniferyl alcohol, sinapyl alcohol,
and para-coumaryl alcohol in the approximate
ratio 100707 and is typical of angiosperm
lignin. Gymnosperm lignin contains relatively
fewer sinapyl alcohol units. (After Nimz 1974.)
Write a Comment
User Comments (0)
About PowerShow.com