Cloning and Sequence Analysis of L-galactono-1,4-lactone Dehydrogenase Gene(GLDH)from Solanum tuberosum Cloning and Sequence Analysis of L-galactono-1,4-lactone Dehydrogenase Gene(GLDH)from Solanum tuberosum Cloning and Expression Patterns of GLDH from Lycium barbarum Ascorbic Acid Accumulation and Related Enzyme Activities in Leaves of Non-heading Chinese Cabbage Relationship Between Ascorbic Acid Content and the Enzyme ActivitiesInvolved in AsA Metabolism of Potato Relationship Between Ascorbic Acid Content and the Enzyme ActivitiesInvolved in AsA Metabolism of Potato Molecular Clon ing and Sequence Analysis of GLDH Gene cDNA from Brassica campestris ssp. chinensis Molecular Clon ing and Sequence Analysis of GLDH Gene cDNA from Brassica campestris ssp. chinensis