Gamma-aminobutyric acid elicits H
Combined stress
GABA
NADPH oxidase
Phytohormone
Seed germination
Journal
PeerJ
ISSN: 2167-8359
Titre abrégé: PeerJ
Pays: United States
ID NLM: 101603425
Informations de publication
Date de publication:
2024
2024
Historique:
received:
12
04
2024
accepted:
22
07
2024
medline:
23
9
2024
pubmed:
23
9
2024
entrez:
23
9
2024
Statut:
epublish
Résumé
In the realm of wheat seed germination, abiotic stresses such as salinity and high temperature have been shown to hinder the process. These stresses can lead to the production of reactive oxygen species, which, within a certain concentration range, may actually facilitate seed germination. γ-aminobutyric acid (GABA), a non-protein amino acid, serves as a crucial signaling molecule in the promotion of seed germination. Nevertheless, the potential of GABA to regulate seed germination under the simultaneous stress of heat and salinity remains unexplored in current literature. This study employed observational methods to assess seed germination rate (GR), physiological methods to measure H The findings indicated that combined stress (30 °C + 50 mM NaCl) decreased the GR of wheat seeds to about 21%, while treatment with 2 mM GABA increased the GR to about 48%. However, the stimulatory effect of GABA was mitigated by the presence of ABA, dimethylthiourea, and NOX inhibitor, but was strengthened by H
Sections du résumé
Background
UNASSIGNED
In the realm of wheat seed germination, abiotic stresses such as salinity and high temperature have been shown to hinder the process. These stresses can lead to the production of reactive oxygen species, which, within a certain concentration range, may actually facilitate seed germination. γ-aminobutyric acid (GABA), a non-protein amino acid, serves as a crucial signaling molecule in the promotion of seed germination. Nevertheless, the potential of GABA to regulate seed germination under the simultaneous stress of heat and salinity remains unexplored in current literature.
Methods
UNASSIGNED
This study employed observational methods to assess seed germination rate (GR), physiological methods to measure H
Results
UNASSIGNED
The findings indicated that combined stress (30 °C + 50 mM NaCl) decreased the GR of wheat seeds to about 21%, while treatment with 2 mM GABA increased the GR to about 48%. However, the stimulatory effect of GABA was mitigated by the presence of ABA, dimethylthiourea, and NOX inhibitor, but was strengthened by H
Identifiants
pubmed: 39308802
doi: 10.7717/peerj.17907
pii: 17907
pmc: PMC11416083
doi:
Substances chimiques
Hydrogen Peroxide
BBX060AN9V
gamma-Aminobutyric Acid
56-12-2
Catalase
EC 1.11.1.6
Superoxide Dismutase
EC 1.15.1.1
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e17907Informations de copyright
© 2024 Yu et al.
Déclaration de conflit d'intérêts
The authors declare that they have no competing interests.