Dehydrin Content and Status of Antioxidant and Osmoprotective Systems of Etiolated Triticum Aestivum Seedlings of Different Genotypes Under Osmotic Stress
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F25%3A10178141" target="_blank" >RIV/00027006:_____/25:10178141 - isvavai.cz</a>
Výsledek na webu
<a href="https://link.springer.com/journal/10343/articles?filter-by-volume=77&sortBy=newestFirst" target="_blank" >https://link.springer.com/journal/10343/articles?filter-by-volume=77&sortBy=newestFirst</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10343-025-01190-0" target="_blank" >10.1007/s10343-025-01190-0</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Dehydrin Content and Status of Antioxidant and Osmoprotective Systems of Etiolated Triticum Aestivum Seedlings of Different Genotypes Under Osmotic Stress
Popis výsledku v původním jazyce
The accumulation of protein dehydrins and compatible osmolytes and the activation of several components of the antioxidant system are considered to be the major biochemical responses of plants to drought. However, the relationship between these defense responses and their contribution to drought tolerance of individual genotypes remains poorly understood, especially in early stages of plant development. We studied the response of 2-day-old etiolated wheat (Triticum aestivum) seedlings to model drought (exposure to 15% polyethylene glycol (PEG 8000) solution for the next two days). Based on the resistance index (ratio of shoot biomass during drought to control), the cultivars were ranked as follows: Conditor >= Antonivka > Bohemia > Baletka >= Tonnage >= Nordika >= Balitus. The most resistant cultivars, Conditor and Antonivka, showed minimal increases in superoxide anion radicals, hydrogen peroxide, and lipid peroxidation products after exposure to PEG 8000. They also lacked an increase in superoxide dismutase and catalase activities after stress application, and the increase in guaiacol peroxidase activity was small. Dehydrin content in response to osmotic stress increased the most in the sensitive cultivars Tonnage, Balitus, and Baletka, and a significant inverse correlation was found between cultivar resistance index and dehydrin content. In most cultivars studied, osmotic stress caused a decrease in shoot soluble carbohydrate content, and it increased only in the most resistant, Antonivka and Conditor. Proline content increased under stress in all cultivars regardless of resistance. Resistant wheat cultivars retained their growth capacity under moderate osmotic stress due to the maintenance of soluble carbohydrate content and stability of redox homeostasis. The susceptible cultivars showed strong accumulation of dehydrin and activation of antioxidant enzymes, probably due to increased generation of reactive oxygen species. Thus, the resistant cultivars adapt to moderate drought through homeostatic rather than stress-induced mechanisms.
Název v anglickém jazyce
Dehydrin Content and Status of Antioxidant and Osmoprotective Systems of Etiolated Triticum Aestivum Seedlings of Different Genotypes Under Osmotic Stress
Popis výsledku anglicky
The accumulation of protein dehydrins and compatible osmolytes and the activation of several components of the antioxidant system are considered to be the major biochemical responses of plants to drought. However, the relationship between these defense responses and their contribution to drought tolerance of individual genotypes remains poorly understood, especially in early stages of plant development. We studied the response of 2-day-old etiolated wheat (Triticum aestivum) seedlings to model drought (exposure to 15% polyethylene glycol (PEG 8000) solution for the next two days). Based on the resistance index (ratio of shoot biomass during drought to control), the cultivars were ranked as follows: Conditor >= Antonivka > Bohemia > Baletka >= Tonnage >= Nordika >= Balitus. The most resistant cultivars, Conditor and Antonivka, showed minimal increases in superoxide anion radicals, hydrogen peroxide, and lipid peroxidation products after exposure to PEG 8000. They also lacked an increase in superoxide dismutase and catalase activities after stress application, and the increase in guaiacol peroxidase activity was small. Dehydrin content in response to osmotic stress increased the most in the sensitive cultivars Tonnage, Balitus, and Baletka, and a significant inverse correlation was found between cultivar resistance index and dehydrin content. In most cultivars studied, osmotic stress caused a decrease in shoot soluble carbohydrate content, and it increased only in the most resistant, Antonivka and Conditor. Proline content increased under stress in all cultivars regardless of resistance. Resistant wheat cultivars retained their growth capacity under moderate osmotic stress due to the maintenance of soluble carbohydrate content and stability of redox homeostasis. The susceptible cultivars showed strong accumulation of dehydrin and activation of antioxidant enzymes, probably due to increased generation of reactive oxygen species. Thus, the resistant cultivars adapt to moderate drought through homeostatic rather than stress-induced mechanisms.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)
Návaznosti výsledku
Projekt
<a href="/cs/project/QK22010293" target="_blank" >QK22010293: Genomická a proteomická charakteristika odolnosti pšenic vůči vybraným abiotickým a biotickým stresům</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Crop Health
ISSN
2948-264X
e-ISSN
2948-2658
Svazek periodika
77
Číslo periodika v rámci svazku
4
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
16
Strana od-do
115
Kód UT WoS článku
001518857100002
EID výsledku v databázi Scopus
2-s2.0-105009347358