Reddy A S, Poovaiah B W
Department of Horticulture and Land. Arch., Washington State University, Pullman 99164-6414.
Biochem Biophys Res Commun. 1987 Sep 30;147(3):885-91. doi: 10.1016/s0006-291x(87)80153-5.
Growth of strawberry (Fragaria ananassa Duch. cv. Ozark Beauty) receptacles is regulated by auxin supplied from the achenes. The receptacle growth can be stopped at any stage by deachening the fruits, and can be resumed by exogenous application of auxin. In our earlier studies we demonstrated auxin regulated polypeptide changes at different stages of strawberry fruit development. Removal of achenes from fruits and growing the receptacles without auxin resulted in the time-dependent accumulation of 52,000 Mr polypeptide. Amino acid analysis revealed that the protein is rich in glycine. Our studies, with normal and variant strawberry receptacles, indicate that the synthesis and accumulation of this glycine-rich protein correlates with cessation of receptacle growth. These results suggest a possible role for the glycine-rich protein in cessation of growth.
草莓（Fragaria ananassa Duch. cv. Ozark Beauty）花托的生长受瘦果供应的生长素调节。通过去除果实的瘦果，花托生长可在任何阶段停止，而通过外源施加生长素可使其恢复生长。在我们早期的研究中，我们证明了生长素在草莓果实发育的不同阶段调节多肽变化。从果实上去除瘦果并在没有生长素的情况下培养花托，导致52,000 Mr多肽随时间积累。氨基酸分析表明该蛋白质富含甘氨酸。我们对正常和变异草莓花托的研究表明，这种富含甘氨酸的蛋白质的合成和积累与花托生长的停止相关。这些结果表明富含甘氨酸的蛋白质在生长停止中可能发挥作用。
