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. 1993 Mar;123(3):471-476.
doi: 10.1111/j.1469-8137.1993.tb03758.x.

Fructan content of wheat seedlings (Triticum aestivum L.) under hypoxia and following re-aeration

G Albrecht  1 , S Kammerer  2 , W Praznik  2 , E M Wiedenroth  1
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Free article

Fructan content of wheat seedlings (Triticum aestivum L.) under hypoxia and following re-aeration

G Albrecht et al. New Phytol. 1993 Mar.
Free article

Abstract

We studied fructan accumulation in wheat seedlings (Triticum aestivum L. cv. Alcedo) caused by oxygen shortage around the root. Plants were cultivated in either nitrogen-flushed or aerated nutrient solution. In response to the nitrogen treatment there was an accumulation of soluble carbohydrates in shoots as well as in roots. The main contribution was due to fructans. The content of fructo-oligosaccharides had been increased five-fold in the roots and seven-fold in the shoots. This is incompatible with the assumption that higher substrate consumption follows enhanced fermentation under oxygen shortage. Re-aeration of the nitrogen-flushed nutrient solution resulted in enhanced consumption of stored carbohydrates, mainly of fructans, accompanied by high growth rates of the roots. The possibility of utilizing fructans quickly if oxygen is available is a possible advantage for plants adapted to hypoxia. Particularly however, it is suggested that the low energy requirements for sucrose: sucrose fructosyl transferase, allowing fructan synthesis even under oxygen shortage, may improve the fitness of plants to survive temporary hypoxia in the rhizosphere.

Keywords: Hypoxia; Triticum aestivum; carbohydrate; fructan; re-aeration.

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References

REFERENCES

    1. Archbold HK. 1938. Physiological studies in plant nutrition. 7. The role of fructosans in the carbohydrate metabolism of the barley plant. Part 2. Seasonal changes in the carbohydrates with a note on the effect of nitrogen deficiency. Annals of Botany 2: 403-436.
    1. Armstrong W. 1979. Aeration in higher plants. In: Woolhouse HW, ed. Advances in Botanical Research 7: London : Academic Press, 226-332.
    1. Atwell BJ, Thomson CJ, Greenway H, Ward G. 1985. A study of the impaired growth of roots of Zea mays seedlings at low oxygen concentration. Plant Cell and Environment 8: 179-188.
    1. Bancal P, Gaudillere JP. 1989. Rate of accumulation of fructan oligomers in wheat seedlings (Triticum aestivum L.) during the early stages of chilling treatments. New Phytologist 112: 459-463.
    1. Barrett-Lennard EG, Leighton PD, Buwalda F, Gibbs J, Armstrong W, Thomson CJ, Greeway H. 1988. Effects of growing wheat in hypoxic nutrient solutions and of subsequent transfer to aerated solutions. I. Growth and carbohydrate status of shoots and roots. Australian Journal of Plant Physiology 15: 585-595.

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