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Sexual dimorphism in the response of Mercurialis annua to stress.
Metabolites 6, DOI: 10.3390/metabo6020013 (2016)
The research presented stemmed from the observations that female plants of the annual dioecious Mercurialis annua outlive male plants. This led to the hypothesis that female plants of M. annua would be more tolerant to stress than male plants. This hypothesis was addressed in a comprehensive way, by comparing morphological, biochemical and metabolomics changes in female and male plants during their development and under salinity. There were practically no differences between the genders in vegetative development and physiological parameters. However, under salinity conditions, female plants produced significantly more new reproductive nodes. Gender-linked differences in peroxidase (POD) and glutathione transferases (GSTs) were involved in anti-oxidation, detoxification and developmental processes in M. annua. ¹H NMR metabolite profiling of female and male M. annua plants showed that under salinity the activity of the TCA cycle increased. There was also an increase in betaine in both genders, which may be explainable by its osmo-compatible function under salinity. The concentration of ten metabolites changed in both genders, while 'Female-only-response' to salinity was detected for five metabolites. In conclusion, dimorphic responses of M. annua plant genders to stress may be attributed to female plants' capacity to survive and complete the reproductive life cycle.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Anti-oxidation ; Dioecious ; Metabolism ; Salinity ; Senescence ; Stress
Language
english
Publication Year
2016
HGF-reported in Year
2016
ISSN (print) / ISBN
2218-1989
e-ISSN
2218-1989
Journal
Metabolites
Quellenangaben
Volume: 6,
Issue: 2
Publisher
MDPI
Reviewing status
Peer reviewed
Institute(s)
Research Unit Comparative Microbiome Analysis (COMI)
Research Unit Environmental Simulation (EUS)
Research Unit Environmental Simulation (EUS)
POF-Topic(s)
30202 - Environmental Health
Research field(s)
Environmental Sciences
PSP Element(s)
G-504700-003
G-504991-001
G-504991-001
PubMed ID
27128954
Scopus ID
84988310724
Erfassungsdatum
2016-05-01