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Nat Protoc. 2016 Aug;11(8):1388-95. doi: 10.1038/nprot.2016.083. Epub 2016 Jul 7.

Rapid and simple isolation of vascular, epidermal and mesophyll cells from plant leaf tissue.

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Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto, Japan.
Japan Science and Technology Agency, PRESTO, Saitama, Japan.


To understand physiological phenomena at the tissue level, elucidation of tissue-specific molecular functions in vivo is required. As an example of the current state of affairs, many genes in plants have been reported to have discordant levels of expression between bulk tissues and the specific tissues in which the respective gene product is principally functional. The principal challenge in deciphering such tissue-specific functions lies in separating tissues with high spatiotemporal resolution to evaluate accurate gene expression profiles. Here, we provide a simple and rapid tissue isolation protocol to isolate all three major leaf tissues (mesophyll, vasculature and epidermis) from Arabidopsis within 30 min with high purity. On the basis of the different cell-to-cell connectivities of tissues, the mesophyll isolation is achieved by making protoplasts, and the vasculature and epidermis isolation is achieved through sonication and enzymatic digestion of leaves. We have successfully tested the protocol on several other plant species, including crop plants such as soybean, tomato and wheat. Furthermore, isolated tissues can be used not only for tissue-specific transcriptome assays but also potentially for tissue-specific proteome and methylome assays.

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