Evidence for a Functional myo-Inositol Oxidation Pathway in Lilium longiflorum Pollen |
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Authors: | Maiti I B Loewus F A |
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Affiliation: | Department of Agricultural Chemistry, Washington State University, Pullman, Washington 99164. |
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Abstract: | Addition of myo-inositol to pentaerythritol-based germination media repressed the conversion of d-[1-14C]glucose to labeled uronosyl and pentosyl units of tube wall pectic substance in lily pollen (Lilium longiflorum Thunb.). Conversion of d-[1-14C]glucose to labeled glucosyl, galactosyl, and rhamnosyl units was unaffected. The reverse experiment, addition of d-glucose to pentaerythritol-based media, failed to affect the conversion of myo-[2-3H]inositol to uronosyl and pentosyl units although the flow of label into products of myo-inositol-linked glucogenesis was blocked. Results of these experiments are discussed in terms of a functional myo-inositol oxidation pathway. |
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