Abstract:
:Xyloglucans were isolated by sequential extraction of the cell walls of pea (Pisum sativum L. cv. Alaska) with a xyloglucan-specific endoglucanase and KOH. The xyloglucan content and xyloglucan-oligosaccharide composition were determined for fractions obtained from the elongating and non-elongating segments of pea stems grown in the light and in darkness. The results were consistent with the hypothesis that regulated growth of the cell wall depends on xyloglucan metabolism. Furthermore, the characterization of xyloglucan extracted from leaves of light-grown pea plants indicates that xyloglucan metabolism is tissue specific. Changes in xyloglucan subunit structure observed in elongating stems are consistent with the in muro realization of a metabolic pathway that was previously proposed solely on the basis of the in vitro activities of plant glycosyl hydrolases.
journal_name
Plantajournal_title
Plantaauthors
Pauly M,Qin Q,Greene H,Albersheim P,Darvill A,York WSdoi
10.1007/s004250000448subject
Has Abstractpub_date
2001-04-01 00:00:00pages
842-50issue
5-6eissn
0032-0935issn
1432-2048journal_volume
212pub_type
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