Leaf Soluble Sugars and Free Amino Acids as Important Components of Abscisic Acid-Mediated Drought Response in Tomato
2020
Autori
Zivanović, BojanaMilić-Komić, Sonja
Tosti, Tomislav
Vidović, Marija
Prokić, Ljiljana
Veljović-Jovanović, Sonja
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Water deficit has a global impact on plant growth and crop yield. Climate changes are going to increase the intensity, duration and frequency of severe droughts, particularly in southern and south-eastern Europe, elevating the water scarcity issues. We aimed to assess the contribution of endogenous abscisic acid (ABA) in the protective mechanisms against water deficit, including stomatal conductance, relative water potential and the accumulation of osmoprotectants, as well as on growth parameters. To achieve that, we used a suitable model system, ABA-deficient tomato mutant, flacca and its parental line. Flacca mutant exhibited constitutively higher levels of soluble sugars (e.g., galactose, arabinose, sorbitol) and free amino acids (AAs) compared with the wild type (WT). Water deficit provoked the strong accumulation of proline in both genotypes, and total soluble sugars only in flacca. Upon re-watering, these osmolytes returned to the initial levels in both genotypes. Our results ind...icate that flacca compensated higher stomatal conductance with a higher constitutive level of free sugars and AAs. Additionally, we suggest that the accumulation of AAs, particularly proline and its precursors and specific branched-chain AAs in both, glucose and sucrose in flacca, and sorbitol in WT, could contribute to maintaining growth rate during water deficit and recovery in both tomato genotypes.
Ključne reči:
ABA / Ailsa Craig cv / arabinose / branched-chain amino acids / galactose / water deficit / flacca mutant / proline / re-wateringIzvor:
Plants-Basel, 2020, 9, 9Izdavač:
- MDPI, BASEL
Finansiranje / projekti:
DOI: 10.3390/plants9091147
ISSN: 2223-7747
PubMed: 32899651
WoS: 000581234100001
Scopus: 2-s2.0-85093899211
Institucija/grupa
Poljoprivredni fakultetTY - JOUR AU - Zivanović, Bojana AU - Milić-Komić, Sonja AU - Tosti, Tomislav AU - Vidović, Marija AU - Prokić, Ljiljana AU - Veljović-Jovanović, Sonja PY - 2020 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/5284 AB - Water deficit has a global impact on plant growth and crop yield. Climate changes are going to increase the intensity, duration and frequency of severe droughts, particularly in southern and south-eastern Europe, elevating the water scarcity issues. We aimed to assess the contribution of endogenous abscisic acid (ABA) in the protective mechanisms against water deficit, including stomatal conductance, relative water potential and the accumulation of osmoprotectants, as well as on growth parameters. To achieve that, we used a suitable model system, ABA-deficient tomato mutant, flacca and its parental line. Flacca mutant exhibited constitutively higher levels of soluble sugars (e.g., galactose, arabinose, sorbitol) and free amino acids (AAs) compared with the wild type (WT). Water deficit provoked the strong accumulation of proline in both genotypes, and total soluble sugars only in flacca. Upon re-watering, these osmolytes returned to the initial levels in both genotypes. Our results indicate that flacca compensated higher stomatal conductance with a higher constitutive level of free sugars and AAs. Additionally, we suggest that the accumulation of AAs, particularly proline and its precursors and specific branched-chain AAs in both, glucose and sucrose in flacca, and sorbitol in WT, could contribute to maintaining growth rate during water deficit and recovery in both tomato genotypes. PB - MDPI, BASEL T2 - Plants-Basel T1 - Leaf Soluble Sugars and Free Amino Acids as Important Components of Abscisic Acid-Mediated Drought Response in Tomato IS - 9 VL - 9 DO - 10.3390/plants9091147 ER -
@article{ author = "Zivanović, Bojana and Milić-Komić, Sonja and Tosti, Tomislav and Vidović, Marija and Prokić, Ljiljana and Veljović-Jovanović, Sonja", year = "2020", abstract = "Water deficit has a global impact on plant growth and crop yield. Climate changes are going to increase the intensity, duration and frequency of severe droughts, particularly in southern and south-eastern Europe, elevating the water scarcity issues. We aimed to assess the contribution of endogenous abscisic acid (ABA) in the protective mechanisms against water deficit, including stomatal conductance, relative water potential and the accumulation of osmoprotectants, as well as on growth parameters. To achieve that, we used a suitable model system, ABA-deficient tomato mutant, flacca and its parental line. Flacca mutant exhibited constitutively higher levels of soluble sugars (e.g., galactose, arabinose, sorbitol) and free amino acids (AAs) compared with the wild type (WT). Water deficit provoked the strong accumulation of proline in both genotypes, and total soluble sugars only in flacca. Upon re-watering, these osmolytes returned to the initial levels in both genotypes. Our results indicate that flacca compensated higher stomatal conductance with a higher constitutive level of free sugars and AAs. Additionally, we suggest that the accumulation of AAs, particularly proline and its precursors and specific branched-chain AAs in both, glucose and sucrose in flacca, and sorbitol in WT, could contribute to maintaining growth rate during water deficit and recovery in both tomato genotypes.", publisher = "MDPI, BASEL", journal = "Plants-Basel", title = "Leaf Soluble Sugars and Free Amino Acids as Important Components of Abscisic Acid-Mediated Drought Response in Tomato", number = "9", volume = "9", doi = "10.3390/plants9091147" }
Zivanović, B., Milić-Komić, S., Tosti, T., Vidović, M., Prokić, L.,& Veljović-Jovanović, S.. (2020). Leaf Soluble Sugars and Free Amino Acids as Important Components of Abscisic Acid-Mediated Drought Response in Tomato. in Plants-Basel MDPI, BASEL., 9(9). https://doi.org/10.3390/plants9091147
Zivanović B, Milić-Komić S, Tosti T, Vidović M, Prokić L, Veljović-Jovanović S. Leaf Soluble Sugars and Free Amino Acids as Important Components of Abscisic Acid-Mediated Drought Response in Tomato. in Plants-Basel. 2020;9(9). doi:10.3390/plants9091147 .
Zivanović, Bojana, Milić-Komić, Sonja, Tosti, Tomislav, Vidović, Marija, Prokić, Ljiljana, Veljović-Jovanović, Sonja, "Leaf Soluble Sugars and Free Amino Acids as Important Components of Abscisic Acid-Mediated Drought Response in Tomato" in Plants-Basel, 9, no. 9 (2020), https://doi.org/10.3390/plants9091147 . .