Pathway and driving forces of selenite absorption in wheat leaf blades

Jinyong Yang, Feiyan Yu, Zihao Fu, Yihan Fu, Sinan Liu, Menglin Chen, Yajuan Li, Qizhuang Sun, Huiqing Chang, Wenli Zhou, Xugang Wang and Lianhe Zhang
Additional contact information
Jinyong Yang: Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
Feiyan Yu: Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
Zihao Fu: Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
Yihan Fu: Agricultural College, Henan Agricultural University, Zhengzhou, Henan, P.R. China
Sinan Liu: Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
Menglin Chen: Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
Yajuan Li: Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
Qizhuang Sun: Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
Huiqing Chang: Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
Wenli Zhou: Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
Xugang Wang: Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
Lianhe Zhang: Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China

Plant, Soil and Environment, 2019, vol. 65, issue 12, 609-614

Abstract: Selenium (Se) deficiency in the human diet is a widespread problem. Se biofortification of wheat crop by spraying foliage with selenite could effectively increase Se intake by enhancing the Se concentration in wheat grains. However, pathway and driving forces of selenite absorption in wheat leaf blades are not fully understood. In this study, the effects of selenite-applied concentration, selenite-exposed duration, stomatal inhibitors, respiratory inhibitors, and competitive anions on selenite absorption in wheat leaf blades were investigated. The results indicated that the selenite absorption rate increased linearly with increasing selenite concentrations, but it decreased greatly and reached a low level with treatment times of 4 h and longer. Stomatal inhibitors significantly inhibited selenite absorption. Respiratory inhibitors and inorganic phosphate (Pi) strongly inhibited selenite absorption. Therefore, selenite passively enters wheat leaf blades via cuticle and stomata, and then enters mesophyll cells via Pi transporters. Concentration gradients and selenite uptake by mesophyll cells provide continual driving forces for selenite absorption in leaf blades.

Keywords: Se fortification; active uptake; foliar fertilisation; passive uptake; rate-limiting step (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://pse.agriculturejournals.cz/doi/10.17221/542/2019-PSE.html (text/html)
http://pse.agriculturejournals.cz/doi/10.17221/542/2019-PSE.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:65:y:2019:i:12:id:542-2019-pse

DOI: 10.17221/542/2019-PSE

Access Statistics for this article

Plant, Soil and Environment is currently edited by Kateřina Součková

More articles in Plant, Soil and Environment from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().