Effect of heat and drought stress on the structure and composition of arabinoxylan and β-glucan in wheat grain

M. Rakszegi, Alison Lovegrove, Krisztina Balla, L. Láng, Z. Bedő, O. Veisz, Peter R. Shewry

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The effects of heat (H), drought (D) and H + D (from 12th day after heading for 15 days) on the dietary fiber content and composition (arabinoxylan (AX) and β-glucan) of three winter wheat varieties (Plainsman V, Mv Magma and Fatima 2) were determined. Results showed that H and D stress decreased the TKW, the β-glucan contents of the seeds and the quantity of the DP3 + DP4 units, while the protein and AX contents increased. The highest amounts of AX and proteins were in the H + D stressed samples with heat stress also increasing the water extractability (WE) of the AX. However, while the content of AX content was generally increased by all stresses, drought stress had negative effect on the AX content of the drought tolerant Plainsman V. Fatima 2 behaved similarly to Plainsman V as regards to its drought tolerance, but was very sensitive to heat stress, while Mv Magma was the most resistant to heat stress.

Original languageEnglish
Pages (from-to)557-565
Number of pages9
JournalCarbohydrate Polymers
Volume102
Issue number1
DOIs
Publication statusPublished - Feb 15 2014

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Glucans
Drought
Chemical analysis
Proteins
Seed
Hot Temperature
arabinoxylan
Water

Keywords

  • Arabinoxylan
  • Beta-glucan
  • Dietary fiber
  • Drought stress
  • Heat stress
  • Wheat

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Effect of heat and drought stress on the structure and composition of arabinoxylan and β-glucan in wheat grain. / Rakszegi, M.; Lovegrove, Alison; Balla, Krisztina; Láng, L.; Bedő, Z.; Veisz, O.; Shewry, Peter R.

In: Carbohydrate Polymers, Vol. 102, No. 1, 15.02.2014, p. 557-565.

Research output: Contribution to journalArticle

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