Taxonomic group: plant / Streptophyta
(Phylum: Streptophyta)
Organ / tissue: style
Publication DOI: 10.1007/BF00199682Journal NLM ID: 1250576Publisher: Berlin, New York, Springer
Institutions: Plant Cell Biology Research Centre, School of Botany, University of Melbourne, Victoria, Australia
The cell walls of styles of Nicotiana alata Link et Otto (ornamental tobacco; Solanaceae) were analysed chemically and examined histochemically. Cell-wall preparations were obtained from whole styles and from isolated transmitting-tissue cells. The style epidermal cells were shown histochemically to have thick, lignified secondary walls. These walls probably constituted a large proportion of the cell-wall preparation from whole styles as analysis of whole-style walls indicated that the major polysaccharides were xylans and cellulose, which are typical of lignified secondary walls of Magnoliopsida (dicotyledons). Lignification of the style epidermal walls was also demonstrated histochemically in 10 other species (5 genera including Nicotiana) of the sub-family Cestroideae of the Solanaceae, but not in 15 species (9 genera) of the sub-family Solanoideae of the Solanaceae, nor in 3 other species of dicotyledons and 2 species of Liliopsida (monocotyledons). Analysis of the cell-wall preparation from isolated transmitting-tissue cells of N. alata indicated that these contained cellulose, xyloglucans, and pectic polysaccharides, which is typical of primary cell walls of dicotyledons. However, the analysis indicated that the walls also contained an unusually high proportion of Type II arabinogalactans. Staining of the transmitting-tissue cell-wall preparation with β-glucosyl Yariv reagent, a histochemical reagent specific for arabinogalactan proteins, confirmed their presence, which may be related to the role of these cells in secreting the stylar extracellular matrix.
polysaccharide, cell wall, lignin, Nicotiana, arabinogalactan protein, style
Structure type: homopolymer
Trivial name: cellulose, β-(1,4)-glucan, cellulose, β-(1,4)-glucan
Compound class: EPS, O-polysaccharide, cell wall polysaccharide, glucan, polysaccharide
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
Comments, role: Parent molecule: cellulose
NCBI Taxonomy refs (TaxIDs): 4087Reference(s) to other database(s): GTC:G75830OM, GlycomeDB:
27885, CCSD:
50051, CBank-STR:4229
Show glycosyltransferases
There is only one chemically distinct structure:
Found 
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