Summary
The aluminium accumulation pattern was studied in roots and root tips of rye seedlings from two inbred lines, differing in Al-tolerance and their F1 hybrid.
This investigations were undertaken in order to find whether the mechanism preventing root tips from to high Al-accumulation and damage to apical meristem observed in Al-tolerant isoline of wheat is also operating in rye. Al-uptake into the root tissue was studied in nutrient solution experiments during 24 h of incubation in solution containing aluminium. After Al-incubation roots were harvested, separated into root tips and basal parts, and aluminium content in root tissue was determined after wet digestion using catechol violet colorimetric method. It was found, that at low external Al-concentration in rye roots the mechanism preventing root tips from Al-accumulation and Al-damage operates, similarly as in Al-tolerant wheat isoline. But contrary to wheat in rye seedlings functioning of this mechanism was observed in both Al-tolerant and Al-sensitive lines. It is concluded that observed mechanism of the inhibition of Al-accumulation in apical part of roots plays much more important role in Al-tolerance mechanism in wheat than in rye.
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Abbreviations
- EDTA:
-
ethylenediaminetetraacetic acid
- NIL:
-
near-isogenic line
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Anioł, A. (1997). Aluminium uptake by roots of rye seedlings of differing tolerance to aluminium toxicity. In: Tigerstedt, P.M.A. (eds) Adaptation in Plant Breeding. Developments in Plant Breeding, vol 4. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-8806-5_22
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DOI: https://doi.org/10.1007/978-94-015-8806-5_22
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