Application of Zinc Oxide Nanoparticles and Plant Growth Promoting Bacteria Reduces Genetic Impairment under Salt Stress in Tomato ( Solanum lycopersicum L. ‘Linda’)

Arash Hosseinpour, Kamil Haliloglu, Kagan Tolga Cinisli, Guller Ozkan, Halil Ibrahim Ozturk, Alireza Pour-Aboughadareh and Peter Poczai
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Arash Hosseinpour: Department of Field Crops, Faculty of Agriculture, Ataturk University, 25240 Erzurum, Turkey
Kamil Haliloglu: Department of Field Crops, Faculty of Agriculture, Ataturk University, 25240 Erzurum, Turkey
Kagan Tolga Cinisli: Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Ataturk University, 25240 Erzurum, Turkey
Guller Ozkan: Department of Field Crops, Faculty of Agriculture, Ataturk University, 25240 Erzurum, Turkey
Halil Ibrahim Ozturk: Health Services Vocational School, Erzincan Binali Yildirim University, 24100 Erzincan, Turkey
Alireza Pour-Aboughadareh: Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization, Karaj 3135933151, Iran
Peter Poczai: Botany Unit, Finnish Museum of Natural History, University of Helsinki, P.O. Box 7, FI-00014 Helsinki, Finland

Agriculture, 2020, vol. 10, issue 11, 1-16

Abstract: Salinity is an edaphic stress that dramatically restricts worldwide crop production. Nanomaterials and plant growth-promoting bacteria (PGPB) are currently used to alleviate the negative effects of various stresses on plant growth and development. This study investigates the protective effects of different levels of zinc oxide nanoparticles (ZnO-NPs) (0, 20, and 40 mg L −1 ) and PGPBs (no bacteria, Bacillus subtilis, Lactobacillus casei , Bacillus pumilus ) on DNA damage and cytosine methylation changes in the tomato ( Solanum lycopersicum L. ‘Linda’) seedlings under salinity stress (250 mM NaCl). Coupled Restriction Enzyme Digestion-Random Amplification (CRED-RA) and Randomly Amplified Polymorphic DNA (RAPD) approaches were used to analyze changes in cytosine methylation and to determine how genotoxic effects influence genomic stability. Salinity stress increased the polymorphism rate assessed by RAPD, while PGPB and ZnO-NPs reduced the adverse effects of salinity stress. Genomic template stability was increased by the PGPBs and ZnO-NPs application; this increase was significant when Lactobacillus casei and 40 mg L −1 of ZnO-NPs were used.A decreased level of DNA methylation was observed in all treatments. Taken together, the use of PGPB and ZnO-NPs had a general positive effect under salinity stress reducing genetic impairment in tomato seedlings.

Keywords: DNA methylation; genomic instability; PGPB; salt stress; ZnO-NP (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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