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Unformatted text preview: Lateral roots arise from pericycle, the outermost layer in vascular cylinder Leaves from leaf primordial, sides of apical meristem Axilary buds from meristematic cells left at the bases of leaf primordia Mesophyll: ground tissue in leaf Palisade in upper, sponge in lower for gas exchange Xylem t in leaves Secondary growth not found in monocots, but in eudicots and gymnosperms Water travel through 3 routs: transmembrane, symplastic, apoplastic Symplastic: continuum of cytosol Apoplastic: via cell walls and extracellular spaces...
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- Spring '10