Distribution and structure of mixed linkage glucan at different stages of elongation of maize root cells

Distribution and structure of mixed linkage glucan at different stages of elongation of maize... Distribution and structure of mixed linkage glucan in the cell walls at different stages of elongation were investigated in the roots of 4-day-old seedlings of maize (Zea mays L.). Mixed linkage glucan was immunocytochemically detected already in the meristem, predominantly in the periclinal cell walls. The antibody binding by the cell walls increased in the zone of cell elongation initiation, was high during the whole process, and did not decrease in the cells whose elongation was over. The content of polysaccharide determined biochemically also rose from meristematic zone to the zone where elongation was over, amounting to 8% of dry weight and remained on the same level after the completion of cell elongation. At different stages of elongation growth, the structure of polysaccharide was not the same. In the beginning of elongation, molar ratio between trimer and tetramer (DP3/DP4) among the products of polysaccharide hydrolysis by lichenase was 3.56 ± 0.04, and after its termination it became 3.04 ± 0.09. According to literature data, such changes tell on the physical properties of polysaccharide, which along with a drastic activation of its deposition associated with the initiation of elongation make it possible to attribute the mixed linkage glucan to the factors directly affecting cell wall extensibility and therefore elongation growth. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Distribution and structure of mixed linkage glucan at different stages of elongation of maize root cells

Loading next page...
 
/lp/springer_journal/distribution-and-structure-of-mixed-linkage-glucan-at-different-stages-KvuXhnWQor
Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2012 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Physiology; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443712030090
Publisher site
See Article on Publisher Site

Abstract

Distribution and structure of mixed linkage glucan in the cell walls at different stages of elongation were investigated in the roots of 4-day-old seedlings of maize (Zea mays L.). Mixed linkage glucan was immunocytochemically detected already in the meristem, predominantly in the periclinal cell walls. The antibody binding by the cell walls increased in the zone of cell elongation initiation, was high during the whole process, and did not decrease in the cells whose elongation was over. The content of polysaccharide determined biochemically also rose from meristematic zone to the zone where elongation was over, amounting to 8% of dry weight and remained on the same level after the completion of cell elongation. At different stages of elongation growth, the structure of polysaccharide was not the same. In the beginning of elongation, molar ratio between trimer and tetramer (DP3/DP4) among the products of polysaccharide hydrolysis by lichenase was 3.56 ± 0.04, and after its termination it became 3.04 ± 0.09. According to literature data, such changes tell on the physical properties of polysaccharide, which along with a drastic activation of its deposition associated with the initiation of elongation make it possible to attribute the mixed linkage glucan to the factors directly affecting cell wall extensibility and therefore elongation growth.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Apr 15, 2012

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off