Silicon alleviates copper (Cu) toxicity in cucumber by increased Cu-binding capacity
Samo za registrovane korisnike
2019
Autori
Bosnic, DraganaNikolic, Dragana
Timotijević, Gordana
Pavlović, Jelena
Vaculik, Marek
Samardžić, Jelena T.
Nikolic, Miroslav
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Aims Although silicon (Si) is known to increase plant resistance to metal toxicity stress, the mechanisms responsible for alleviation of copper (Cu) toxicity are still insufficiently clear. We investigated the role of Si on Cu-binding processes involved in buffering excessive Cu in cucumber (Cucumis sativus L.) tissues. Methods Cucumber plants were subjected to moderate Cu toxicity stress (10 mu M Cu) without (-Si) or with (+Si) supply of 1.5 mM Si. We analyzed total and cell wall concentrations of Cu and Cu-binding compounds (organic acids and Cu-proteins) along with parameters of oxidative stress (e.g. lipid peroxidation and lignification). Results Supply of Si decreased total Cu concentration in both root and leaf tissues, but increased the root cell wall Cu fraction. Also, Si increased superoxide dismutase (SOD) activity in 10 mu M Cu-treated plants. Concomitantly, protein levels of Cu/Zn SOD isoforms (CSD1 and CSD2) in root tissues also increased in +Si plants. The leaf Cu-binding... compounds, such as aconitate and plastocyanin (including the expression of CsPC gene) were higher in the +Si plants. Consequently, Si supply effectively lowered lipid peroxidation in both roots and leaves of Cu-stressed plants. Conclusions Supply of Si enhanced both the accumulation of Cu-binding molecules (Zn/Cu SOD in roots; aconitate and plastocyanin in leaves), and the Cu-binding capacity of the root cell wall.
Ključne reči:
SOD / Silicon / Plastocyanin / Cucumber (Cucumis sativus L / Copper toxicity / Cell wallIzvor:
Plant and Soil, 2019, 441, 1-2, 629-641Izdavač:
- Springer, Dordrecht
Finansiranje / projekti:
- grant of bilateral scientific cooperation between Serbia and Slovakia [SK-SRB-2013-0021 (451-03-545/2015-09/02)]
- Molekularni mehanizmi odgovora biljaka na abiotički stres-uloga transkripcionih faktora i malih RNK i analiza genetičkog diverziteta biljnih kultura od interesa za poljoprivredu i biotehnologiju (RS-173005)
- Mineralni stres i adaptacije biljaka na marginalnim poljoprivrednim zemljištima (RS-173028)
DOI: 10.1007/s11104-019-04151-5
ISSN: 0032-079X
WoS: 000482412400041
Scopus: 2-s2.0-85067392850
Institucija/grupa
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Bosnic, Dragana AU - Nikolic, Dragana AU - Timotijević, Gordana AU - Pavlović, Jelena AU - Vaculik, Marek AU - Samardžić, Jelena T. AU - Nikolic, Miroslav PY - 2019 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1212 AB - Aims Although silicon (Si) is known to increase plant resistance to metal toxicity stress, the mechanisms responsible for alleviation of copper (Cu) toxicity are still insufficiently clear. We investigated the role of Si on Cu-binding processes involved in buffering excessive Cu in cucumber (Cucumis sativus L.) tissues. Methods Cucumber plants were subjected to moderate Cu toxicity stress (10 mu M Cu) without (-Si) or with (+Si) supply of 1.5 mM Si. We analyzed total and cell wall concentrations of Cu and Cu-binding compounds (organic acids and Cu-proteins) along with parameters of oxidative stress (e.g. lipid peroxidation and lignification). Results Supply of Si decreased total Cu concentration in both root and leaf tissues, but increased the root cell wall Cu fraction. Also, Si increased superoxide dismutase (SOD) activity in 10 mu M Cu-treated plants. Concomitantly, protein levels of Cu/Zn SOD isoforms (CSD1 and CSD2) in root tissues also increased in +Si plants. The leaf Cu-binding compounds, such as aconitate and plastocyanin (including the expression of CsPC gene) were higher in the +Si plants. Consequently, Si supply effectively lowered lipid peroxidation in both roots and leaves of Cu-stressed plants. Conclusions Supply of Si enhanced both the accumulation of Cu-binding molecules (Zn/Cu SOD in roots; aconitate and plastocyanin in leaves), and the Cu-binding capacity of the root cell wall. PB - Springer, Dordrecht T2 - Plant and Soil T1 - Silicon alleviates copper (Cu) toxicity in cucumber by increased Cu-binding capacity EP - 641 IS - 1-2 SP - 629 VL - 441 DO - 10.1007/s11104-019-04151-5 ER -
@article{ author = "Bosnic, Dragana and Nikolic, Dragana and Timotijević, Gordana and Pavlović, Jelena and Vaculik, Marek and Samardžić, Jelena T. and Nikolic, Miroslav", year = "2019", abstract = "Aims Although silicon (Si) is known to increase plant resistance to metal toxicity stress, the mechanisms responsible for alleviation of copper (Cu) toxicity are still insufficiently clear. We investigated the role of Si on Cu-binding processes involved in buffering excessive Cu in cucumber (Cucumis sativus L.) tissues. Methods Cucumber plants were subjected to moderate Cu toxicity stress (10 mu M Cu) without (-Si) or with (+Si) supply of 1.5 mM Si. We analyzed total and cell wall concentrations of Cu and Cu-binding compounds (organic acids and Cu-proteins) along with parameters of oxidative stress (e.g. lipid peroxidation and lignification). Results Supply of Si decreased total Cu concentration in both root and leaf tissues, but increased the root cell wall Cu fraction. Also, Si increased superoxide dismutase (SOD) activity in 10 mu M Cu-treated plants. Concomitantly, protein levels of Cu/Zn SOD isoforms (CSD1 and CSD2) in root tissues also increased in +Si plants. The leaf Cu-binding compounds, such as aconitate and plastocyanin (including the expression of CsPC gene) were higher in the +Si plants. Consequently, Si supply effectively lowered lipid peroxidation in both roots and leaves of Cu-stressed plants. Conclusions Supply of Si enhanced both the accumulation of Cu-binding molecules (Zn/Cu SOD in roots; aconitate and plastocyanin in leaves), and the Cu-binding capacity of the root cell wall.", publisher = "Springer, Dordrecht", journal = "Plant and Soil", title = "Silicon alleviates copper (Cu) toxicity in cucumber by increased Cu-binding capacity", pages = "641-629", number = "1-2", volume = "441", doi = "10.1007/s11104-019-04151-5" }
Bosnic, D., Nikolic, D., Timotijević, G., Pavlović, J., Vaculik, M., Samardžić, J. T.,& Nikolic, M.. (2019). Silicon alleviates copper (Cu) toxicity in cucumber by increased Cu-binding capacity. in Plant and Soil Springer, Dordrecht., 441(1-2), 629-641. https://doi.org/10.1007/s11104-019-04151-5
Bosnic D, Nikolic D, Timotijević G, Pavlović J, Vaculik M, Samardžić JT, Nikolic M. Silicon alleviates copper (Cu) toxicity in cucumber by increased Cu-binding capacity. in Plant and Soil. 2019;441(1-2):629-641. doi:10.1007/s11104-019-04151-5 .
Bosnic, Dragana, Nikolic, Dragana, Timotijević, Gordana, Pavlović, Jelena, Vaculik, Marek, Samardžić, Jelena T., Nikolic, Miroslav, "Silicon alleviates copper (Cu) toxicity in cucumber by increased Cu-binding capacity" in Plant and Soil, 441, no. 1-2 (2019):629-641, https://doi.org/10.1007/s11104-019-04151-5 . .