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Accumulation of free amino acids in the tips of non-thermodormant embryonic axes accounts for the increase in the growth potential of New York lettuce seeds
- Source :
- Plantcell physiology. 21(8)
- Publication Year :
- 2014
-
Abstract
- Accumulation of free amino acids took place only in growing axes during the first 24 hr of imbibition at 18°C. A ninhydrin-positive section was shown to be located at the tips of the axes by a histochemical technique. The amount of free amino acids accumulated just at the breaking of the seed coats in the non-dormant axes was great enough to account for the increase in the growth potential, i.e., the force to rupture the testa. About 72% of the accumulated free amino acids in the non-thermodormant embryonic axes was comprised of glutamine and glutamate.
Details
- ISSN :
- 00320781
- Volume :
- 21
- Issue :
- 8
- Database :
- OpenAIRE
- Journal :
- Plantcell physiology
- Accession number :
- edsair.doi.dedup.....b06c19882ec1d9d21e5603e37c710937