Silicon increases phosphorus (P) uptake by wheat under low P acid soil conditions
Samo za registrovane korisnike
2017
Autori
Kostić Kravljanac, LjiljanaNikolić, Nina
Bosnic, Dragana
Samardžić, Jelena T.
Nikolic, Miroslav
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Although silicon (Si) is known to improve plant growth under low phosphorus (P) conditions, the in planta mechanisms responsible for this effect are still unknown. Here, we investigated the role of Si on P uptake along with the expression of Pi transporters in wheat (Triticum aestivum L.) grown in low P acid soil in comparison with P fertilization and liming. A combined approach was performed including analyses of rhizosphere soil, tissue P content, the expression of the root Pi transporter genes (TaPHT1.1 and TaPHT1.2), and the root exudation of citrate and malate. Supply of Si in a form of Na2SiO3 increased shoot P concentration to an adequate level in the range of P-fertilized plants. Silicon ameliorated low soil pH and high Al3+ comparable to the effect of liming. The in planta effect of Si on up-regulating the expression of TaPHT1.1 and TaPHT1.2 was several fold higher and consequently P uptake doubled compared to both P fertilization and liming. In addition, Si directly stimulate...d root Pi acquisition by prominently increasing both malate and citrate exudation rate. Application of Si increased root exudation of organic acids that mobilize Pi in the rhizosphere and up-regulated Pi transporters in wheat roots.
Ključne reči:
Wheat (Triticum aestivum) / Silicon / Root exudates / Rhizosphere / PHT1 transporters / Phosphorus uptake / Acid soilIzvor:
Plant and Soil, 2017, 419, 1-2, 447-455Izdavač:
- Springer, Dordrecht
Finansiranje / projekti:
- Mineralni stres i adaptacije biljaka na marginalnim poljoprivrednim zemljištima (RS-173028)
- 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)
DOI: 10.1007/s11104-017-3364-0
ISSN: 0032-079X
WoS: 000415350500032
Scopus: 2-s2.0-85026552203
Institucija/grupa
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Kostić Kravljanac, Ljiljana AU - Nikolić, Nina AU - Bosnic, Dragana AU - Samardžić, Jelena T. AU - Nikolic, Miroslav PY - 2017 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1067 AB - Although silicon (Si) is known to improve plant growth under low phosphorus (P) conditions, the in planta mechanisms responsible for this effect are still unknown. Here, we investigated the role of Si on P uptake along with the expression of Pi transporters in wheat (Triticum aestivum L.) grown in low P acid soil in comparison with P fertilization and liming. A combined approach was performed including analyses of rhizosphere soil, tissue P content, the expression of the root Pi transporter genes (TaPHT1.1 and TaPHT1.2), and the root exudation of citrate and malate. Supply of Si in a form of Na2SiO3 increased shoot P concentration to an adequate level in the range of P-fertilized plants. Silicon ameliorated low soil pH and high Al3+ comparable to the effect of liming. The in planta effect of Si on up-regulating the expression of TaPHT1.1 and TaPHT1.2 was several fold higher and consequently P uptake doubled compared to both P fertilization and liming. In addition, Si directly stimulated root Pi acquisition by prominently increasing both malate and citrate exudation rate. Application of Si increased root exudation of organic acids that mobilize Pi in the rhizosphere and up-regulated Pi transporters in wheat roots. PB - Springer, Dordrecht T2 - Plant and Soil T1 - Silicon increases phosphorus (P) uptake by wheat under low P acid soil conditions EP - 455 IS - 1-2 SP - 447 VL - 419 DO - 10.1007/s11104-017-3364-0 ER -
@article{ author = "Kostić Kravljanac, Ljiljana and Nikolić, Nina and Bosnic, Dragana and Samardžić, Jelena T. and Nikolic, Miroslav", year = "2017", abstract = "Although silicon (Si) is known to improve plant growth under low phosphorus (P) conditions, the in planta mechanisms responsible for this effect are still unknown. Here, we investigated the role of Si on P uptake along with the expression of Pi transporters in wheat (Triticum aestivum L.) grown in low P acid soil in comparison with P fertilization and liming. A combined approach was performed including analyses of rhizosphere soil, tissue P content, the expression of the root Pi transporter genes (TaPHT1.1 and TaPHT1.2), and the root exudation of citrate and malate. Supply of Si in a form of Na2SiO3 increased shoot P concentration to an adequate level in the range of P-fertilized plants. Silicon ameliorated low soil pH and high Al3+ comparable to the effect of liming. The in planta effect of Si on up-regulating the expression of TaPHT1.1 and TaPHT1.2 was several fold higher and consequently P uptake doubled compared to both P fertilization and liming. In addition, Si directly stimulated root Pi acquisition by prominently increasing both malate and citrate exudation rate. Application of Si increased root exudation of organic acids that mobilize Pi in the rhizosphere and up-regulated Pi transporters in wheat roots.", publisher = "Springer, Dordrecht", journal = "Plant and Soil", title = "Silicon increases phosphorus (P) uptake by wheat under low P acid soil conditions", pages = "455-447", number = "1-2", volume = "419", doi = "10.1007/s11104-017-3364-0" }
Kostić Kravljanac, L., Nikolić, N., Bosnic, D., Samardžić, J. T.,& Nikolic, M.. (2017). Silicon increases phosphorus (P) uptake by wheat under low P acid soil conditions. in Plant and Soil Springer, Dordrecht., 419(1-2), 447-455. https://doi.org/10.1007/s11104-017-3364-0
Kostić Kravljanac L, Nikolić N, Bosnic D, Samardžić JT, Nikolic M. Silicon increases phosphorus (P) uptake by wheat under low P acid soil conditions. in Plant and Soil. 2017;419(1-2):447-455. doi:10.1007/s11104-017-3364-0 .
Kostić Kravljanac, Ljiljana, Nikolić, Nina, Bosnic, Dragana, Samardžić, Jelena T., Nikolic, Miroslav, "Silicon increases phosphorus (P) uptake by wheat under low P acid soil conditions" in Plant and Soil, 419, no. 1-2 (2017):447-455, https://doi.org/10.1007/s11104-017-3364-0 . .