Manthey A E, Dickinson D B
Department of Horticulture, University of Illinois, Urbana, Illinois 61801.
Plant Physiol. 1978 Jun;61(6):904-8. doi: 10.1104/pp.61.6.904.
Lilium Iongiflorum pollen tubes absorbed myo-[2-(3)H]inositol produced labeled metabolites which were separated into acid-soluble and -insoluble fractions. The soluble fraction contained labeled myo-inositol, d-glucuronic acid, myo-inositol 1-phosphate, and at least three other unidentified compounds. The acid-insoluble fraction contained considerable chloroformsoluble radioactivity and a labeled residue. Labeled myo-inositol was also absorbed by germinating pollen prior to the time of pollen tube initiation; however, there was a marked reduction in amounts of myo-inositol 1-phosphate and glucuronic acid produced by this pollen in comparison with growing pollen tubes.
麝香百合花粉管吸收了肌醇-[2-(3)H]肌醇,产生了标记代谢物,这些代谢物被分离成酸溶性和酸不溶性部分。可溶性部分含有标记的肌醇、D-葡萄糖醛酸、肌醇1-磷酸以及至少三种其他未鉴定的化合物。酸不溶性部分含有相当数量的氯仿可溶性放射性和一个标记残留物。在花粉管开始形成之前,萌发的花粉也吸收了标记的肌醇;然而,与生长中的花粉管相比,这种花粉产生的肌醇1-磷酸和葡萄糖醛酸的量显著减少。