Mannosyl- and Xylosyl-Containing Glycans Promote Tomato (Lycopersicon esculentum Mill.) Fruit Ripening.
The oligosaccharide glycans mannosylalpha1-6(mannosylalpha1-3)mannosylalpha1-6(mannosylalpha1-3) mannosylbeta1-4-N-acetylglucosamine and mannosylalpha1-6(mannosylalpha1-3)(xylosylbeta1-2) mannosylbeta1-4-N-acetylglucosaminyl(fucosylalpha1-3) N-acetylglucosamine were infiltrated into mature green tomato fruit (Lycopersicon esculentum Mill., cv Rutgers). Coinfiltration of 1 nanogram per gram fresh weight of the glycans with 40 micrograms per gram fresh weight galactose, a level of galactose insufficient to promote ripening, stimulated ripening as measured by red coloration and ethylene production.
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United States Department of Agriculture, Agricultural Research Service, Building 002, 10300 Baltimore Avenue, Beltsville, Maryland 20705-2350.
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