Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Nishitani, K.
Right arrow Articles by Masuda, Y.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Nishitani, K.
Right arrow Articles by Masuda, Y.
Agricola
Right arrow Articles by Nishitani, K.
Right arrow Articles by Masuda, Y.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Plant and Cell Physiology, 1979, Vol. 20, No. 1 63-74
© 1979

Article

Growth and cell wall changes in azuki bean epicotyls I. Changes in wall polysaccharides during intact growth

Kazuhiko Nishitani and Yoshio Masuda

Department of Biology, Faculty of Science, Osaka City University Sumiyoshi-ku, Osaka 558, Japan

Measurement of endogenous growth rates and the mechanical property of the cell wall in various regions of light-grown azuki bean epicotyls revealed diat the minimum stress-relaxation time (To) was the shortest in the upper region (0–30 mm below the apex) of the epicotyl, where vigorous endogenous growth took place, and became longer toward the basal region, which was mature and not growing.

In the upper region of the epicotyl, a lower percentage of a-cellulose and a higher percentage of pectic substances than in the lower region were found. The percentage of hemicellulose content was almost constant over the whole epicotyl. Major components of noncellulosic neutral sugars in the cell wall were galactose and xylose. The percentage of the galactose content to the noncellulosic polysaccharide was highest in the upper region and lowest in the basal region of the epicotyl, and a clearly negative correlation between the galactose composition and the To value was obtained. On the contrary, the percentage of die xylose content was highest in the basal region and lowest in die upper region, and a clearly positive correlation between die xylose composition and the To value was obtained. During die endogenous growth of die intact epicotyl, all die neutral sugars, particularly galactose, increased in die upper region, whereas in die middle and basal regions, only xylose increased. Similar changes in sugar compositions were observed during IAA-induced elongation of die segment excised from various regions of die epicotyl.

(Received July 27, 1978; )
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Crop Sci.Home page
S. K. Stombaugh, J. H. Orf, H. G. Jung, and D. A. Somers
Relationships between Soybean Seed Cell Wall Polysaccharides, Yield, and Seed Traits
Crop Sci., March 1, 2003; 43(2): 571 - 576.
[Abstract] [Full Text] [PDF]

Home page
 Plant Cell PhysiolHome page
H. Tokumoto, K. Wakabayashi, S. Kamisaka, and T. Hoson
Changes in the Sugar Composition and Molecular Mass Distribution of Matrix Polysaccharides during Cotton Fiber Development
Plant Cell Physiol., April 15, 2002; 43(4): 411 - 418.
[Abstract] [Full Text] [PDF]

Home page
 Plant Cell PhysiolHome page
T. Kaku, A. Tabuchi, K. Wakabayashi, S. Kamisaka, and T. Hoson
Action of Xyloglucan Hydrolase within the Native Cell Wall Architecture and Its Effect on Cell Wall Extensibility in Azuki Bean Epicotyls
Plant Cell Physiol., January 1, 2002; 43(1): 21 - 26.
[Abstract] [Full Text] [PDF]


Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.