Differences in proline accumulation between wheat varieties in response to heat stress
Proline is one of the organic osmolytes that accumulates in plants in response to stressful environmental conditions. The aim of this study was to determine the concentration of proline in the grain filling phase in ten winter wheat cultivars under conditions of prolonged periods of air temperatu...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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University of Belgrade
2021-04-01
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| Series: | Botanica Serbica |
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| Online Access: | https://botanicaserbica.bio.bg.ac.rs/arhiva/pdf/2021_45_1_786_full.pdf |
| _version_ | 1818646540844007424 |
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| author | Nevena H. Djukić Stefan M. Marković Jasna S. Mastilović Predrag Simović |
| author_facet | Nevena H. Djukić Stefan M. Marković Jasna S. Mastilović Predrag Simović |
| author_sort | Nevena H. Djukić |
| collection | DOAJ |
| description | Proline is one of the organic osmolytes that accumulates in plants in response to
stressful environmental conditions. The aim of this study was to determine the
concentration of proline in the grain filling phase in ten winter wheat cultivars
under conditions of prolonged periods of air temperatures above 30°C and to assess the variability of wheat variety responses. The correlation between proline accumulation and photosynthetic pigments, accumulated starch and yield was also
determined. In the experimental field, flag leaves were sampled for each variety
in the grain filling phase. Statistical data analysis and parameter correlation were
performed using the SPSS program. The results showed that there is a statistically
significant difference between proline values in moderate and high air temperature conditions when proline accumulation occurs. The significant correlation of
accumulated starch content and yield with proline concentration showed that in
addition to higher proline values under heat stress, wheat varieties Apač, Talas and
Futura also have higher yield and starch content. A correlation was also found between proline concentration and photosynthetic pigment contents, where the Apač
wheat variety showed the best adaptive response to the investigated traits and was
characterized by a smaller reduction in photosynthetic pigment content under heat
stress. The interrelation of proline with the photosynthetic pigment content and
wheat quality parameters may be important in breeding technologies aimed at improving wheat stress tolerance. |
| first_indexed | 2024-12-17T00:48:16Z |
| format | Article |
| id | doaj.art-80ccc1a0083b4305bf68bb1221ebf1d0 |
| institution | Directory Open Access Journal |
| issn | 1821-2158 1821-2638 |
| language | English |
| last_indexed | 2024-12-17T00:48:16Z |
| publishDate | 2021-04-01 |
| publisher | University of Belgrade |
| record_format | Article |
| series | Botanica Serbica |
| spelling | doaj.art-80ccc1a0083b4305bf68bb1221ebf1d02022-12-21T22:09:50ZengUniversity of BelgradeBotanica Serbica1821-21581821-26382021-04-01451616910.2298/BOTSERB2101061DDifferences in proline accumulation between wheat varieties in response to heat stressNevena H. Djukić0Stefan M. Marković1Jasna S. Mastilović2Predrag Simović3University of Kragujevac, Faculty of Science, Radoja Domanovića 12, 34000, Kragujevac, SerbiaUniversity of Kragujevac, Faculty of Science, Radoja Domanovića 12, 34000, Kragujevac, SerbiaUniversity of Novi Sad, Institute of Food Technology, Bulevar cara Lazara 1, 21000, Novi Sad, SerbiaUniversity of Kragujevac, Faculty of Science, Radoja Domanovića 12, 34000, Kragujevac, SerbiaProline is one of the organic osmolytes that accumulates in plants in response to stressful environmental conditions. The aim of this study was to determine the concentration of proline in the grain filling phase in ten winter wheat cultivars under conditions of prolonged periods of air temperatures above 30°C and to assess the variability of wheat variety responses. The correlation between proline accumulation and photosynthetic pigments, accumulated starch and yield was also determined. In the experimental field, flag leaves were sampled for each variety in the grain filling phase. Statistical data analysis and parameter correlation were performed using the SPSS program. The results showed that there is a statistically significant difference between proline values in moderate and high air temperature conditions when proline accumulation occurs. The significant correlation of accumulated starch content and yield with proline concentration showed that in addition to higher proline values under heat stress, wheat varieties Apač, Talas and Futura also have higher yield and starch content. A correlation was also found between proline concentration and photosynthetic pigment contents, where the Apač wheat variety showed the best adaptive response to the investigated traits and was characterized by a smaller reduction in photosynthetic pigment content under heat stress. The interrelation of proline with the photosynthetic pigment content and wheat quality parameters may be important in breeding technologies aimed at improving wheat stress tolerance.https://botanicaserbica.bio.bg.ac.rs/arhiva/pdf/2021_45_1_786_full.pdftriticum aestivumamino acidphotosynthetic pigmentsadaptationsstarch |
| spellingShingle | Nevena H. Djukić Stefan M. Marković Jasna S. Mastilović Predrag Simović Differences in proline accumulation between wheat varieties in response to heat stress Botanica Serbica triticum aestivum amino acid photosynthetic pigments adaptations starch |
| title | Differences in proline accumulation between wheat varieties in response to heat stress |
| title_full | Differences in proline accumulation between wheat varieties in response to heat stress |
| title_fullStr | Differences in proline accumulation between wheat varieties in response to heat stress |
| title_full_unstemmed | Differences in proline accumulation between wheat varieties in response to heat stress |
| title_short | Differences in proline accumulation between wheat varieties in response to heat stress |
| title_sort | differences in proline accumulation between wheat varieties in response to heat stress |
| topic | triticum aestivum amino acid photosynthetic pigments adaptations starch |
| url | https://botanicaserbica.bio.bg.ac.rs/arhiva/pdf/2021_45_1_786_full.pdf |
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