myo-Inositol Metabolism in Lilium longiflorum Pollen | Zendy

Minshen Chen | Zendy; Frank A. Loewus | Zendy

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myo-Inositol Metabolism in Lilium longiflorum Pollen

Author(s) -

Minshen Chen,

Frank A. Loewus

Publication year - 1977

Publication title -

plant physiology

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.59.4.653

Subject(s) - lilium , inositol , botany , pollen , biology , metabolism , biochemistry , receptor

Germinating Lilium longiflorum pollen absorbs and metabolizes myo-inositol-2-(3)H (MI-2-(3)H) with a pronounced lag when label is supplied from the beginning of germination. If MI-2-(3)H is given after 3 hours of germination, incorporation of labeled metabolic products into pollen tube polysaccharides is constant over a range of 0.56 mm to 2.78 mm MI. When MI-2-(3)H is supplied as a 0.5-hour pulse 3 hours after germination, the proper precursor-product relationship to tube wall polysaccharides is observed. Replacing 10% of the germination media with sigmatic exudate from a compatible cultivar hastens germination and tube elongation. Enhanced MI metabolism accompanies tube growth in this exudate-enriched media.

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