Physicochemical control of durum wheat grain filling and glutenin polymer assembly under different temperature regimes
type: Dataset
description: Durum wheat is grown in the Mediterranean area where drought and high temperature frequently prevail and impact grain texture, composition and yield. The purpose of this work was to examine the effect of high temperature on grain development and final composition according to the timing of exposure. High temperature (up to 27.5 degrees C) was applied either during the linear grain filling or drying phases or during whole grain development. The dynamics of grain dry mass, water, glutenin polymers, and protein bodies during grain development were determined. Irrespective of high temperature timing, the arrest of grain filling was observed at 45.9% grain moisture content. At that point, starch granules included in endosperm cells reached their physical packing limit, limiting further deposits. HT applied before physiological maturity shortened the duration of grain filling and resulted in a significant increase in grain protein concentration and in the proportion of vitreous grain. Late formation of sodium dodecyl sulfate (SDS)-insoluble glutenin polymers below 32% grain moisture content was also favored. The ability of wheat storage protein to form a viscoelastic matrix embedding starch granules at the beginning of grain desiccation is proposed to be mandatory for gaining vitreous grains and a high proportion of SDS-insoluble glutenin polymers. (c) 2011 Elsevier Ltd. All rights reserved.
issued: 2026-05-05T21:45:08.297626
language: en
modified: 2026-05-05T21:45:08.297630
contact point: Organization
  fn: CCSD
keyword: accumulation
keyword: bread
keyword: dry-matter
keyword: durum-wheat-grain-filling
keyword: endosperm
keyword: glutenin-polymers
keyword: grain-moisture-content
keyword: heat-shock
keyword: infoeu-reposemanticsarticle
keyword: journal-articles
keyword: protein-composition
keyword: quality
keyword: sdvsalife-sciences-q-bioagricultural-sciences
keyword: size-distribution
keyword: sonication
keyword: starch-granules-packing-limit
keyword: water
landing page: 0733-5210

Physicochemical control of durum wheat grain filling and glutenin polymer assembly under different temperature regimes
type: Distribution
format: HTML
issued: 2026-05-05T21:45:08.309801
modified: 2026-05-05T21:45:08.278086
access URL: https://hal.science/hal-00964171

test_moissonnage_selune
type: Agent