We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
紫梗籽银桂种子发育过程中内源激素 含量的动态变化研究.
- Authors
朱永莉; 沈永宝
- Abstract
[Objective] To investigate the changes in the content of four endogenous hormones in the embryo and endosperm during the development process of Osmanthus fragrans 'Zigengziyin' seeds, and to explore the patterns of endogenous hormone changes during this process. [Method] Osmanthus fragrans 'Zigengziyin' seeds were used to measure the contents of endogenous hormones auxin (IAA), gibberellin (GA3 ), zeatin nucleoside (ZR) and abscisic acid (ABA) in embryo and endosperm during different periods in seed development. [Result] During the development of seeds, GA3 contents in embryo decreased, but the ABA contents in embryo increased. IAA and ZR contents in embryo increased firstly then decreased and increased finally. The Ratio of GA3 /ABA also decreased continuously. Both the ratios of IAA/ABA and ZR/ABA decreased firstly then increased. The change in GA3 /ABA in the embryo was greater than the change in the ratios of IAA/ABA and ZR/ABA. The contents of GA3, IAA, and ZR in the endosperm decreased during the development, while the content of ABA first decreased, then increased, and remained stable. The ratios of GA3 /ABA, IAA/ABA, and ZR/ABA decreased, and the variation amplitude of GA3 /ABA ratio in endosperm was greater than that of IAA/ABA and ZR/ABA. [Conclusion] The dynamic changes in the content of four endogenous hormones in the embryo and endosperm during the seed development process of O. fragrans 'Zigengziyin'exhibite a certain regularity. The ratio of GA3 /ABA in embryo and endosperm both decrease, and the changes are greater than of the changes in IAA/ABA and ZR/ABA. The ratio of GA3 /ABA may be the key factor affecting seed development.
- Subjects
SEED development; ENDOSPERM; EMBRYOS; HORMONES
- Publication
Forest Research, 2023, Vol 36, Issue 6, p144
- ISSN
1001-1498
- Publication type
Article
- DOI
10.12403/j.1001-1498.20230164