Biologia plantarum 49:405-409, 2005 | DOI: 10.1007/s10535-005-0015-8
Effect of aluminium on endosperm reserve mobilization in germinating rice grains
- 1 Department of Agronomy, National Taiwan University, Taipei, Taiwan, Republic of China
The effect of AlCl3 on endosperm reserve mobilization of rice grains or dehulled rice grains during germination was investigated. AlCl3 had no effect on grain fresh and dry masses, protein and starch contents, and α-amylase and protease activities in endosperm of germinating rice grains. However, when dehulled rice grains were treated with AlCl3, AlCl3 inhibited the decrease in fresh mass, dry mass, and starch and protein contents, and the increase in α-amylase and protease activities in endosperm. Evidence is provided to show that the hull is a barrier against influx of Al to endosperm.
Keywords: α-amylase; Oryza sativa; protease
Subjects: aluminium, seed germination, endosperm; amino acids; amylases; asparagine; endosperm; germination; Oryza sativa; protease; rice, endosperm reserve mobilization; root, aluminium; starch, endosperm, germination; sucrose, root
Received: October 3, 2003; Accepted: November 10, 2004; Published: September 1, 2005 Show citation
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