galactan/nicotiana

Monoclonal antibody PN 16.4B4 reacts with an epitope present on the external face of the plasma membrane as shown by immunofluorescent staining of Nicotiana glutinosa L. protoplasts (Norman et al. 1986, Planta 167, 452-459). We show here that this epitope is present in a glycan moiety and defines a

Two monoclonal antibodies (McAbs) generated against rhamnogalacturonan I and characterized as specific for a terminal [alpha]-(1->2)-linked fucosyl-containing epitope (CCRC-M1) and for an arabinosylated [beta]-(1,6)-galactan epitope (CCRC-M7) were used in immunogold experiments to determine the

BACKGROUND Arabinogalactan proteins are abundant proteoglycans present on cell surfaces of plants and involved in many cellular processes, including somatic embryogenesis, cell-cell communication and cell elongation. Arabinogalactan proteins consist mainly of glycan, which is synthesized by

We have characterized a β-glucuronosyltransferase (AtGlcAT14A) from Arabidopsis thaliana that is involved in the biosynthesis of type II arabinogalactan (AG). This enzyme belongs to the Carbohydrate Active Enzyme database glycosyltransferase family 14 (GT14). The protein was localized to the Golgi

The mechanisms underpinning plant perception of phloem-feeding insects, particularly aphids, remain poorly characterized. Therefore, the role of apoplastic redox state in controlling aphid infestation was explored using transgenic tobacco (Nicotiana tabacum) plants that have either high (PAO) or low