New insights into the effects of high temperature, drought and post-anthesis fertilizer on wheat grain development

Altenbach, Susan B.

doi:10.1016/j.jcs.2011.12.012

Cited by 102 publications

(84 citation statements)

References 67 publications

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“…Also in this study the spot train seems to be environmentally dependent since it was over expressed under drought condition in both cultivars. These results are in agreement with Altenbach (2012) and Laino et al (2010) who reported an increase in the globulin-2 amount during grain development under high temperatures in both Triticum aestivum and Triticum turgidum subsp. durum, and with Jiang et al (2012) who found an over expression of different globulins in response to water deficit during grain development.…”

Section: Resultssupporting

confidence: 93%

“…In particular recent studies illustrate how high temperatures and drought accelerate grain development (Altenbach et al, 2003;Hurkman and Wood, 2011) thus making more difficult to detect changes in protein accumulation in response to environmental factors. To better investigate the effects of environment on proteins and genes that may be involved in determining yield and quality, proteomic and transcriptomic approaches result useful (Altenbach, 2012). However, also due to the various post-translational modifications of proteins that occur as grain develops, the accumulated amounts of a large proportion of proteins are often poorly correlated with their corresponding mRNAs in expression profiles; for this reason a proteomic approach can be more valuable in monitoring developmental profiles (Guo et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, relative to the gluten proteins, gliadins and glutenins consist of many closely related proteins with similar molecular weights and isoelectric points and therefore considerably overlap in twodimensional electrophoresis (2-DE). Additionally, proteomic data on the gluten proteins is limited, also because it has been very challenging to identify these proteins by mass spectrometry (MS) (Altenbach, 2012). Recently, several groups have used proteomic approach to determine the environmental effect on the accumulation of grain protein during grain filling.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of gluten proteins composition during grain filling in two durum wheat cultivars submitted to two water regimes

et al. 2014

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Durum wheat (Triticum turgidum L. subsp. durum) is one of the major crops in the Mediterranean basin, where water stress often occurs during grain filling which represents a critical stage for the synthesis and accumulation of storage proteins (gliadins and glutenins). The aim of the study is to evaluate, by two-dimensional gel electrophoresis (2DE SDS-PAGE), the storage proteins composition of two durum wheat cultivars (Ciccio and Svevo) cultivated in a growth chamber under two different water regimes (control and water deficit). At milk stage and physiological maturity, gluten proteins have been extracted and separated by 2DE SDS-PAGE. The analysis of the gels was performed by the software ImageMaster 2D Platinum (Amersham). The results showed differences in protein expression within the different gel regions between water regimes and cultivars; under water deficit the rate of protein accumulation was faster for all the protein regions, either at milk and physiological stage. Protein accumulation within high molecular weight (H) region resulted faster in Ciccio than in Svevo mainly in the control treatment. In the low molecular weight region between 48 and 35 kDa (L 48-35), the cultivar Ciccio showed a higher protein expression than Svevo. Furthermore under water deficit a marked increase in H region volume and a decrease in the L 48-35 region was observed only for Svevo; instead in Ciccio no change was observed showing this cultivar a greater stability on changing water regime. Further studies by the use of mass spectrometry are necessary to identify specific peptides relative to drought stress during grain filling as well as to investigate the relationships with technological quality.

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Section: Resultssupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of gluten proteins composition during grain filling in two durum wheat cultivars submitted to two water regimes

et al. 2014

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“…It has long been recognized that environmental factors have substantial effect on wheat development and thus wheat quality. Stressful weather conditions can take place at any time of the wheat plant development and cause diverse changes in grain morphology and structure (Altenbach et al, 2012;Beckles and Thitisaksakul, 2014). Heat stress and rainfall are recognized as significant factors affecting grain yield and quality in wheat.…”

Section: Introductionmentioning

confidence: 99%

Alpha-amylase activity in wheat flour and breadmaking properties in relation to different climatic conditions

Rakita¹,

Torbica²,

Dokić³

et al. 2015

Food & Feed Res

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ABSTRACT:The aim of the present paper was to evaluate the influence of different climatic conditions on the activity of alpha-amylase in wheat samples and bread quality parameters. Three wheat varieties grown in three different localities in three years were chosen for this study. Commonly used methods for estimation of alpha-amylase activity in wheat grain were employed. The obtained results indicated that harvest year 2013, which was characterized with the excessive amount of rainfall, exhibited the highest level of alpha-amylase activity and the lowest values of the peak viscosity. The lowest alpha-amylase level and the highest peak viscosity and FN value were observed for samples harvested in 2012 which was characterized with the greatest number of days with an average daily temperature above 30 and 35 °C. In addition, a decrease in Mixolab parameter torque C3 and specific bread loaf volume, as well as increase in the breakdown torque (C3-C4) of samples harvested in 2013 were observed, which could be attributed to rainy weather influencing increase in alpha-amylase activity. It is found that specific bread loaf volume of wheat samples is highest in 2012. Moreover, a negative correlation between alpha-amylase activity and specific bread volume for all the samples grown in three years was determined.

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“…There is increasing evidence on the significant negative effects of heat stress on yield and yield components during the generative phases (Farooq et al 2011;Semenov and Shewry 2011;Balla et al 2012). Elevated temperature induces pollen sterility and seed abortion, resulting in lower seed weight, and also significantly affects flour yield and dough quality (Hays et al 2007;Altenbach 2012). High temperature accelerates flowering and grain maturity, which is paralleled by reduced crop height, leaf growth and number of tillers per plant (Rahman et al 2009;Zhang et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Heat stress response of wheat cultivars with different ecological adaptation

Bányai

Karsaï

Balla

et al. 2014

Cereal Research Communications

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In the present study, heat treatment was carried out in five different phenological phases, from the first node detectable (DEV31) growth stage to 20 days after flowering, on four wheat genotypes with very different adaptation strategies. They were grown in a controlled environment in a phytotron chamber and exposed to a night temperature of 20ºC and a day temperature of either 30ºC, at DEV31, or 35ºC at all the later developmental phases, for an interval of 14 days. Plant height, leaf number, number of tillers, grain number and grain weight per main and side spikes, TKW per main and side spikes, length of the main and side spikes, and spikelet number per main and side spikes were recorded. High temperature enhanced the stem growth intensity, plant height and tiller number. In contrast, the length of side spikes, spikelet no./side spike, grain no./main and side spike, grain weight/main and side spike and TKW/main and side spike were significantly decreased. The stress response depended strongly on the developmental phase in which the heat stress was applied. Fleischmann 481 and Soissons showed definitely contrasting tendencies both in grain number and grain weight. In the case of the Plainsman V and Mv Magma pair, the higher heat stress tolerance of Magma compared to Plainsman V was evident also from the grain number and weight of the main spike at each developmental phase.

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New insights into the effects of high temperature, drought and post-anthesis fertilizer on wheat grain development

Cited by 102 publications

References 67 publications

Analysis of gluten proteins composition during grain filling in two durum wheat cultivars submitted to two water regimes

Analysis of gluten proteins composition during grain filling in two durum wheat cultivars submitted to two water regimes

Alpha-amylase activity in wheat flour and breadmaking properties in relation to different climatic conditions

Heat stress response of wheat cultivars with different ecological adaptation

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