Effects of biogenic silver and iron nanoparticles on soybean seedlings (Glycine max).
AgNPs
Biogenic metallic nanoparticles
FeNPs
Lignification
Phytotoxicity
Soybean
Journal
BMC plant biology
ISSN: 1471-2229
Titre abrégé: BMC Plant Biol
Pays: England
ID NLM: 100967807
Informations de publication
Date de publication:
24 May 2022
24 May 2022
Historique:
received:
17
01
2022
accepted:
29
04
2022
entrez:
23
5
2022
pubmed:
24
5
2022
medline:
26
5
2022
Statut:
epublish
Résumé
Biogenic metallic nanoparticles have been emerging as a promising alternative for the control of phytopathogens and as nanofertilizers. In this way, it is essential to investigate the possible impacts of these new nanomaterials on plants. In this study, the effects of soil contamination with biogenic silver (AgNPs) and iron (FeNPs) with known antifungal potential were investigated on morphological, physiological and biochemical parameters of soybean seedlings. The exposure of plants/seedlings to AgNPs induced the reduction of root dry weight followed by oxidative stress in this organ, however, adaptive responses such as a decrease in stomatal conductance without impacts on photosynthesis and an increase in intrinsic water use efficiency were also observed. The seedlings exposed to FeNPs had shown an increase in the levels of oxygen peroxide in the leaves not accompanied by lipid peroxidation, and an increase in the expression of POD2 and POD7 genes, indicating a defense mechanism by root lignification. Our results demonstrated that different metal biogenic nanoparticles cause different effects on soybean seedlings and these findings highlight the importance of investigating possible phytotoxic effects of these nanomaterials for the control of phytopathogens or as nanofertilizers.
Sections du résumé
BACKGROUND
BACKGROUND
Biogenic metallic nanoparticles have been emerging as a promising alternative for the control of phytopathogens and as nanofertilizers. In this way, it is essential to investigate the possible impacts of these new nanomaterials on plants. In this study, the effects of soil contamination with biogenic silver (AgNPs) and iron (FeNPs) with known antifungal potential were investigated on morphological, physiological and biochemical parameters of soybean seedlings.
RESULTS
RESULTS
The exposure of plants/seedlings to AgNPs induced the reduction of root dry weight followed by oxidative stress in this organ, however, adaptive responses such as a decrease in stomatal conductance without impacts on photosynthesis and an increase in intrinsic water use efficiency were also observed. The seedlings exposed to FeNPs had shown an increase in the levels of oxygen peroxide in the leaves not accompanied by lipid peroxidation, and an increase in the expression of POD2 and POD7 genes, indicating a defense mechanism by root lignification.
CONCLUSION
CONCLUSIONS
Our results demonstrated that different metal biogenic nanoparticles cause different effects on soybean seedlings and these findings highlight the importance of investigating possible phytotoxic effects of these nanomaterials for the control of phytopathogens or as nanofertilizers.
Identifiants
pubmed: 35606722
doi: 10.1186/s12870-022-03638-1
pii: 10.1186/s12870-022-03638-1
pmc: PMC9128269
doi:
Substances chimiques
Soil Pollutants
0
Silver
3M4G523W1G
Iron
E1UOL152H7
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
255Subventions
Organisme : Fundação de Amparo à Pesquisa do Estado de São Paulo
ID : #2016/13692-6
Organisme : Fundação de Amparo à Pesquisa do Estado de São Paulo
ID : #2017/20932-6
Organisme : Fundação de Amparo à Pesquisa do Estado de São Paulo
ID : #2017/21004-5
Organisme : Fundação de Amparo à Pesquisa do Estado de São Paulo
ID : #2017/13328-5
Informations de copyright
© 2022. The Author(s).
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