Plant and animal stem cells: conceptually similar, molecularly distinct?

Abstract excerpt

Animals and plants maintain small pools of stem cells that continuously provide the precursors of more-specialized cells to sustain growth or to replace tissues. A comparison of plant and animal stem cells can highlight core aspects of stem-cell biology. In both types of organism, stem cells are maintained by intercellular signals that are available only in defined regions (niches) in the tissues. Although plants...

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