The tolerance of PSII to high temperatures in durum wheat (T. turgidum conv. durum): genetic variation and relationship with yield under heat stress

2000 ◽  
Vol 28 (4) ◽  
pp. 395-402 ◽  
Author(s):  
D. Rekika ◽  
Y. Kara ◽  
I. Souyris ◽  
M. M. Nachit ◽  
A. Asbati ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Heat Stress ◽  
Durum Wheat ◽  
High Temperatures

scholarly journals Ultrastructure and biochemical traits of bread and durum wheat grains under heat stress

2008 ◽  
Vol 20 (4) ◽  
pp. 323-333 ◽  
Author(s):  
Ana S. Dias ◽  
Ana S. Bagulho ◽  
Fernando C. Lidon
Keyword(s):  
Heat Stress ◽  
Durum Wheat ◽  
High Temperatures ◽  
Grain Quality ◽  
Triticum Turgidum ◽  
Grain Filling ◽  
Triticum Aestivum L ◽  
Essential Amino Acids ◽  
Ultrastructural Changes ◽  
Aleurone Layer

The yield and grain quality (as well as technological traits) of two heat-stressed genotypes of bread (Triticum aestivum L.) and durum wheat (Triticum turgidum subsp. durum) having different tolerance to high temperatures after anthesis were investigated. Heat stress, during grain filling, triggered grain shrinkage with a reduced weight and ultrastructural changes in the aleurone layer and in the endosperm cells. Heat stress also decreased the sedimentation index SDS, an effect associated with increased protein content in the grain but with decreased levels of essential amino acids. Although the responses to heat stress were similar among the Triticum genotypes, it is further suggested that during grain filling, high temperatures might affect gluten strength, diminishing the wheat flour quality.

Genetic variation of the weaning weight of beef cattle as a function of accumulated heat stress

2015 ◽  
Vol 133 (2) ◽  
pp. 92-104 ◽  
Author(s):  
M.L. Santana ◽  
A.B. Bignardi ◽  
J.P. Eler ◽  
J.B.S. Ferraz
Keyword(s):  
Genetic Variation ◽  
Heat Stress ◽  
Beef Cattle ◽  
Weaning Weight

scholarly journals Solvent Retention Capacity and Gluten Protein Composition of Durum Wheat Flour as Influenced by Drought and Heat Stress

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 1000
Author(s):  
Maryke Labuschagne ◽  
Carlos Guzmán ◽  
Keneuoe Phakela ◽  
Barend Wentzel ◽  
Angeline van Biljon
Keyword(s):  
Lactic Acid ◽  
Heat Stress ◽  
Durum Wheat ◽  
Stress Conditions ◽  
Severe Drought ◽  
Gluten Protein ◽  
Retention Capacity ◽  
Solvent Retention ◽  
Drought And Heat Stress ◽  
Solvent Retention Capacity

Drought and temperature stress can cause considerable gluten protein accumulation changes during grain-filling, resulting in variations in wheat quality. The contribution of functional polymeric components of flour to its overall functionality and quality can be measured using solvent retention capacity (SRC). The aim of this study was to determine the effect of moderate and severe drought and heat stress on SRC and swelling index of glutenin (SIG) in six durum wheat cultivars with the same glutenin subunit composition and its relation with gluten protein fractions from size exclusion high performance liquid chromatography. Distilled water, sodium carbonate and sucrose SRC reacted similarly to stress conditions, with moderate heat causing the lowest values. Lactic acid SRC and SIG reacted similarly, where severe heat stress highly significantly increased the values. SIG was significantly correlated with sodium dodecyl sulphate sedimentation (SDSS) and flour protein content (FPC) under all conditions. Lactic acid SRC was highly correlated with FPC under optimal and moderate heat stress and with SDSS under moderate drought and severe heat. SIG was negatively correlated with low molecular weight glutenins under optimal and drought conditions, and combined for all treatments. The relationship between SRC and gluten proteins was inconsistent under different stress conditions.

Genetic variation in Nelore heifer pregnancy due to heat stress during the breeding season

2018 ◽  
Vol 218 ◽  
pp. 101-107
Author(s):  
M.L. Santana ◽  
J.P. Eler ◽  
G.A. Oliveira ◽  
A.B. Bignardi ◽  
R.J. Pereira ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Heat Stress ◽  
Breeding Season

Response to drought and heat stress on wheat quality, with special emphasis on bread-making quality, in durum wheat

2016 ◽  
Vol 186 ◽  
pp. 157-165 ◽  
Author(s):  
Carlos Guzmán ◽  
Jorge Enrique Autrique ◽  
Suchismita Mondal ◽  
Ravi Prakash Singh ◽  
Velu Govindan ◽  
...  
Keyword(s):  
Heat Stress ◽  
Durum Wheat ◽  
Wheat Quality ◽  
Bread Making ◽  
Drought And Heat Stress

Genetic Variation in Glutenin Protein Composition of Aestivum and Durum Wheat Cultivars and Its Relationship with Dough Quality

2015 ◽  
Vol 18 (11) ◽  
pp. 2393-2408 ◽  
Author(s):  
Vishal R. Patil ◽  
J. G. Talati ◽  
Chandrakant Singh ◽  
V. B. Parekh ◽  
G. C. Jadeja
Keyword(s):  
Genetic Variation ◽  
Durum Wheat ◽  
Protein Composition ◽  
Wheat Cultivars ◽  
Dough Quality ◽  
Glutenin Protein

scholarly journals Genetic variation for tolerance to high temperatures in a population of Drosophila melanogaster

2018 ◽  
Vol 8 (21) ◽  
pp. 10374-10383 ◽  
Author(s):  
Carmen Rolandi ◽  
John R. B. Lighton ◽  
Gerardo J. de la Vega ◽  
Pablo E. Schilman ◽  
Julián Mensch
Keyword(s):  
Drosophila Melanogaster ◽  
Genetic Variation ◽  
High Temperatures

scholarly journals Effects of Genotype, Growing Season and Nitrogen Level on Gluten Protein Assembly of Durum Wheat Grown under Mediterranean Conditions

Agronomy ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 755
Author(s):  
Anna Gagliardi ◽  
Federica Carucci ◽  
Stefania Masci ◽  
Zina Flagella ◽  
Giuseppe Gatta ◽  
...  
Keyword(s):  
Durum Wheat ◽  
High Temperatures ◽  
Wheat Yield ◽  
Growing Season ◽  
Mediterranean Area ◽  
Protein Assembly ◽  
Gluten Protein ◽  
Nitrogen Levels ◽  
Growing Seasons ◽  
Assembly Factor

Water deficit and high temperatures are the main environmental factors which affect both wheat yield and technological quality in the Mediterranean climate. The aim of the study was to evaluate the variation in the gluten protein assembly of four durum wheat genotypes in relation to growing seasons and different nitrogen levels. The genotypes, Marco Aurelio, Quadrato, Pietrafitta and Redidenari, were grown under three nitrogen levels (36, 90 and 120 kg ha−1) during two growing seasons in Southern Italy. Significant lower yield and a higher protein concentration were observed in the year characterized by a higher temperature at the end of the crop cycle. The effect of the high temperatures on protein assembly was different for the genotypes in relation to their earliness. Based on PCA, in the warmer year, only the medium-early genotype Quadrato showed positive values along the “protein polymerization degree” factor, while the medium and medium-late genotypes, Marco Aurelio and Pietrafitta showed negative values along the “proteins assembly” factor. No clear separation along the two factors was observed for the early genotype Redidenari. The variation in gluten protein assembly observed in the four genotypes in relation to the growing season might help breeding programs to select genotypes suitable for facing the ongoing climate changes in Mediterranean area.

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