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A Review on Si Uptake and Transport System
Stockholm University, Faculty of Science, Department of Ecology, Environment and Plant Sciences.
Stockholm University, Faculty of Science, Department of Ecology, Environment and Plant Sciences.
Number of Authors: 22019 (English)In: PLANTS, E-ISSN 2223-7747, Vol. 8, no 4, article id 81Article, review/survey (Refereed) Published
Abstract [en]

Silicon (Si) was long listed as a non-essential component for plant growth and development because of its universal availability. However, there has been a resurgence of interest in studying the underlying uptake and transport mechanism of silicon in plants because of the reported dynamic role of silicon in plants under stressed environmental conditions. This uptake and transport mechanism is greatly dependent upon the uptake ability of the plant's roots. Plant roots absorb Si in the form of silicic acid from the soil solution, and it is moved through different parts of the plant using various influx and efflux transporters. Both these influx and efflux transporters are mostly found in the plasma membrane; however, their location and pattern of expression varies among different plants. The assessment of these features provides a new understanding of different species-dependent Si accumulations, which have been studied in monocots but are poorly understood in other plant groups. Therefore, the present review provides insight into the most recent research exploring the use of Si transporters in angiosperms and cryptogams. This paper presents an extensive representation of data from different families of angiosperms, including monocots and eudicots. Eudicots (previously referred to as dicots) have often been neglected in the literature, because they are categorized as low/intermediate Si accumulators. However, in this review, we attempt to highlight the accumulating species of different plant groups in which Si uptake is mediated through transporters.

Place, publisher, year, edition, pages
2019. Vol. 8, no 4, article id 81
Keywords [en]
Si transporters, Si, monocots, eudicots, cryptogams, Lsi1, Lsi2, Lsi6
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:su:diva-169061DOI: 10.3390/plants8040081ISI: 000467296200004PubMedID: 30934978OAI: oai:DiVA.org:su-169061DiVA, id: diva2:1318304
Available from: 2019-05-27 Created: 2019-05-27 Last updated: 2019-05-27Bibliographically approved

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