24-Epibrassinolide as a Modifier of Antioxidant Activities and Membrane Properties of Wheat Cells in Zearalenone Stress Conditions
PBN-AR
Instytucja
Instytut Fizjologii Roślin im. Franciszka Górskiego Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
JOURNAL OF PLANT GROWTH REGULATION (35pkt w roku publikacji)
ISSN
0721-7595
EISSN
1435-8107
Wydawca
SPRINGER
DOI
URL
Rok publikacji
2018
Numer zeszytu
Strony od-do
1-14
Numer tomu
Identyfikator DOI
Liczba arkuszy
0,5
Słowa kluczowe
angielski
Brassinosteroids
Mycotoxin stress
Cereal
Antioxidative enzymes
Membrane structure
Open access
Tryb otwartego dostępu
Otwarte czasopismo
Wersja tekstu w otwartym dostępie
Wersja opublikowana
Licencja otwartego dostępu
Creative Commons — Uznanie autorstwa
Czas opublikowania w otwartym dostępie
Razem z publikacją
Data udostępnienia w sposób otwarty
Streszczenia
Język
angielski
Treść
The mechanism of action of brassinosteroids (BRs) in plant cells under stress has not been fully explained, despite ample evidence of their protective effects. The aim of this study was to investigate the significance of physicochemical properties of cell membranes during an interaction with BRs under stress conditions induced by a mycotoxin zearalenone (ZEA). Experiments were performed in in vitro cultures of wheat cells obtained from immature embryos of tolerant and sensitive genotypes. ZEA added to media (30 µM) accumulated in greater amounts in the cells of sensitive wheat, contrary to BRs, which accumulated in greater amounts by the tolerant genotype when added to media at 0.1 µM. Incorporation of 24-epibrassinolide (EBR) stimulated synthesis of casta- and homocastasterone, that is, endogenous BRs present in wheat cells, and enhanced the content of homocastasterone. When the cultures were supplemented with the mixture of ZEA and EBR, castasterone synthesis was stimulated to a higher degree in cells of the sensitive plant. EBR and ZEA added separately activated antioxidant enzyme systems in both genotypes but with preference for the sensitive one. In the cells treated with ZEA + EBR, the activation was close to that observed for EBR alone. The study discussed also the role of membrane permeability, electrokinetic potential changes, and structural properties of native (plasmalemma) and model (DOPC) monolayers in the mechanism of EBR-induced protection, including the possibility of replacing ZEA absorbed in the membrane lipid layers by BR molecules, independently of the activation of the antioxidant system.
Inne
System-identifier
PX-5ae02bd5d5de8a486d9e0dc1
CrossrefMetadata from Crossref logo
Cytowania
Liczba prac cytujących tę pracę
Brak danych
Referencje
Liczba prac cytowanych przez tę pracę
Brak danych