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  • Title: Protein patterns of the Brassica rapa ovules and seeds under altered gravity.
    Author: Sozinov I, Kozub N, Popova A.
    Journal: J Gravit Physiol; 2004 Jul; 11(2):P217-8. PubMed ID: 16240516.
    Abstract:
    Electrophoretic investigation of protein patterns of Brassica rapa L. ovules and seeds from plants grown under clinorotation and in the laboratory control was carried out. Ovules at different stages (7 and 18 days after pollination) and mature seeds were analyzed. Polymorphism of seed storage proteins of B. rapa was taken into consideration in analysis of changes in ovule protein patterns under clinorotation. The appearance of a protein component in the region of about 43 kDa was detected in protein patterns of 7-day-old and 18-day-old ovules in the clinostat variants. Under altered gravity, in 18-day-old ovules, the appearance of a protein in the region of about 70 kDa was also revealed. The appearance of the protein component with the similar mobility (about 43 kDa) in ovules of different age from plants grown at clinorotation suggests that synthesis of this protein may be associated with the plant response to altered gravity. However, the investigation of the nature of this protein and its role requires further research to rule out its appearance because of genotypic differences between ovules of the control and experimental variants.
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