Drought-induced adjustment of primary metabolites in maize hybrids
Аутори
Kravić, NatalijaRistić, Danijela
Babić, Vojka
Srdić, Jelena
Kovinčić, Anika
Anđelković, Violeta
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Primary metabolites are directly implicated in plant growth processes, photosynthesis, and
respiration, allowing plants to acclimatize and recover from drought stress. Accordingly, this
study aimed to determine alterations in content of sugars, total protein, seventeen amino acids
and thirty two fatty acids in seeds of maize genotypes differing in drought tolerance in terms
of improved plant productivity e.g. increased grain yield obtained under severe water deficit.
The experiment was conducted under irrigation and rain-fed conditions. Long-term water
deficit stress directly affected plant metabolism, resulting in profound changes in biosynthesis
and transport of evaluated primary metabolites. Water deficit caused the inhibition of sugar
metabolism (i.e. declined level of sucrose, glucose, fructose, maltose and lactose), bein more
pronounced in seeds of drought-sensitive genotypes. Slight decrease in palmitic, linoleic and
α-linoleic fatty acids were evidenced in drougth sus...ceptible and medium drought-tolerant
maize genotypes. However, significant increase was observed for oleic and especially stearic
fatty acid content. In response to water deficit, medium drought-tolerant and tolerant genotypes
exhibited amino acids content increase, especialy for methionine, lysine, isoleucine and
leucine, with preserved incorporation of amino acids into protein chain. This was confirmed
with highly significant positive correlations between total protein and amino acids content
(p≤0.01). The increased protein content in drought tolerant genotypes is linked to altered C-
partitioning, which changes the C/N ratio, to favor more N-assimilation, which was confirmed
with highly significant negative correlations between sugars and protein content (p≤0.01), i.e.
sugars and amino acids content (p≤0.01), respectively. Identification of sensitive sites (i.e.
biochemical pathways for seed reserves) related to seed-filling processes in stressed plants
under long-term water deficit, would provide useful cues in developing strategies to improve
grain yield and its quality.
Кључне речи:
amino acids / fatty acid / sugars / water deficit / Zea mays L.Извор:
25. EUCARPIA Maize and Sorghum conference current, Challenges and new methods for maize and sorghum breeding, 30.05–2.06.2022., Belgrade, Serbia - Book of abstracts, 2022, 55-55Издавач:
- Belgrade : Maize Research Institute "Zemun Polje"
Институција/група
MRIZPTY - CONF AU - Kravić, Natalija AU - Ristić, Danijela AU - Babić, Vojka AU - Srdić, Jelena AU - Kovinčić, Anika AU - Anđelković, Violeta PY - 2022 UR - http://rik.mrizp.rs/handle/123456789/1345 AB - Primary metabolites are directly implicated in plant growth processes, photosynthesis, and respiration, allowing plants to acclimatize and recover from drought stress. Accordingly, this study aimed to determine alterations in content of sugars, total protein, seventeen amino acids and thirty two fatty acids in seeds of maize genotypes differing in drought tolerance in terms of improved plant productivity e.g. increased grain yield obtained under severe water deficit. The experiment was conducted under irrigation and rain-fed conditions. Long-term water deficit stress directly affected plant metabolism, resulting in profound changes in biosynthesis and transport of evaluated primary metabolites. Water deficit caused the inhibition of sugar metabolism (i.e. declined level of sucrose, glucose, fructose, maltose and lactose), bein more pronounced in seeds of drought-sensitive genotypes. Slight decrease in palmitic, linoleic and α-linoleic fatty acids were evidenced in drougth susceptible and medium drought-tolerant maize genotypes. However, significant increase was observed for oleic and especially stearic fatty acid content. In response to water deficit, medium drought-tolerant and tolerant genotypes exhibited amino acids content increase, especialy for methionine, lysine, isoleucine and leucine, with preserved incorporation of amino acids into protein chain. This was confirmed with highly significant positive correlations between total protein and amino acids content (p≤0.01). The increased protein content in drought tolerant genotypes is linked to altered C- partitioning, which changes the C/N ratio, to favor more N-assimilation, which was confirmed with highly significant negative correlations between sugars and protein content (p≤0.01), i.e. sugars and amino acids content (p≤0.01), respectively. Identification of sensitive sites (i.e. biochemical pathways for seed reserves) related to seed-filling processes in stressed plants under long-term water deficit, would provide useful cues in developing strategies to improve grain yield and its quality. PB - Belgrade : Maize Research Institute "Zemun Polje" C3 - 25. EUCARPIA Maize and Sorghum conference current, Challenges and new methods for maize and sorghum breeding, 30.05–2.06.2022., Belgrade, Serbia - Book of abstracts T1 - Drought-induced adjustment of primary metabolites in maize hybrids SP - 55 EP - 55 UR - https://hdl.handle.net/21.15107/rcub_rik_1345 ER -
@conference{ author = "Kravić, Natalija and Ristić, Danijela and Babić, Vojka and Srdić, Jelena and Kovinčić, Anika and Anđelković, Violeta", year = "2022", abstract = "Primary metabolites are directly implicated in plant growth processes, photosynthesis, and respiration, allowing plants to acclimatize and recover from drought stress. Accordingly, this study aimed to determine alterations in content of sugars, total protein, seventeen amino acids and thirty two fatty acids in seeds of maize genotypes differing in drought tolerance in terms of improved plant productivity e.g. increased grain yield obtained under severe water deficit. The experiment was conducted under irrigation and rain-fed conditions. Long-term water deficit stress directly affected plant metabolism, resulting in profound changes in biosynthesis and transport of evaluated primary metabolites. Water deficit caused the inhibition of sugar metabolism (i.e. declined level of sucrose, glucose, fructose, maltose and lactose), bein more pronounced in seeds of drought-sensitive genotypes. Slight decrease in palmitic, linoleic and α-linoleic fatty acids were evidenced in drougth susceptible and medium drought-tolerant maize genotypes. However, significant increase was observed for oleic and especially stearic fatty acid content. In response to water deficit, medium drought-tolerant and tolerant genotypes exhibited amino acids content increase, especialy for methionine, lysine, isoleucine and leucine, with preserved incorporation of amino acids into protein chain. This was confirmed with highly significant positive correlations between total protein and amino acids content (p≤0.01). The increased protein content in drought tolerant genotypes is linked to altered C- partitioning, which changes the C/N ratio, to favor more N-assimilation, which was confirmed with highly significant negative correlations between sugars and protein content (p≤0.01), i.e. sugars and amino acids content (p≤0.01), respectively. Identification of sensitive sites (i.e. biochemical pathways for seed reserves) related to seed-filling processes in stressed plants under long-term water deficit, would provide useful cues in developing strategies to improve grain yield and its quality.", publisher = "Belgrade : Maize Research Institute "Zemun Polje"", journal = "25. EUCARPIA Maize and Sorghum conference current, Challenges and new methods for maize and sorghum breeding, 30.05–2.06.2022., Belgrade, Serbia - Book of abstracts", title = "Drought-induced adjustment of primary metabolites in maize hybrids", pages = "55-55", url = "https://hdl.handle.net/21.15107/rcub_rik_1345" }
Kravić, N., Ristić, D., Babić, V., Srdić, J., Kovinčić, A.,& Anđelković, V.. (2022). Drought-induced adjustment of primary metabolites in maize hybrids. in 25. EUCARPIA Maize and Sorghum conference current, Challenges and new methods for maize and sorghum breeding, 30.05–2.06.2022., Belgrade, Serbia - Book of abstracts Belgrade : Maize Research Institute "Zemun Polje"., 55-55. https://hdl.handle.net/21.15107/rcub_rik_1345
Kravić N, Ristić D, Babić V, Srdić J, Kovinčić A, Anđelković V. Drought-induced adjustment of primary metabolites in maize hybrids. in 25. EUCARPIA Maize and Sorghum conference current, Challenges and new methods for maize and sorghum breeding, 30.05–2.06.2022., Belgrade, Serbia - Book of abstracts. 2022;:55-55. https://hdl.handle.net/21.15107/rcub_rik_1345 .
Kravić, Natalija, Ristić, Danijela, Babić, Vojka, Srdić, Jelena, Kovinčić, Anika, Anđelković, Violeta, "Drought-induced adjustment of primary metabolites in maize hybrids" in 25. EUCARPIA Maize and Sorghum conference current, Challenges and new methods for maize and sorghum breeding, 30.05–2.06.2022., Belgrade, Serbia - Book of abstracts (2022):55-55, https://hdl.handle.net/21.15107/rcub_rik_1345 .