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Si uptake and transport in Cucumis sativus. CsLsi1, the influx transporter, takes up Si from an external solution, and CsLsi2, the efflux transporter, further transports it to the endodermis by symplastic pathway. However, the transporter for xylem unloading has not yet been identified. (?—No information is available in literature so far). Modified with reference [32].
