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Journal of Wood Science

Official Journal of the Japan Wood Research Society

Fig. 2 | Journal of Wood Science

Fig. 2

From: Temporally and spatially controlled death of parenchyma cells is involved in heartwood formation in pith regions of branches of Robinia pseudoacacia var. inermis

Fig. 2

a A light micrograph of a transverse section of LH-1 sample, stained with safranin, showing the center of a branch of Robinia pseudoacacia L. var. inermis. b Higher-magnification view of pith and xylem. The left side of the latter micrograph corresponds to the outer side of the branch. AP Axial parenchyma cell surrounding vessel elements, P pith, PZ perimedullary zone (with double-headed arrow), RP ray parenchyma cell, V vessel element, Xy xylem. Bars 400 μm in a and 100 μm in b

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