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Viscin Cells in the Dwarf Mistletoe Arceuthobium ... - Davidsonia

Viscin Cells in the Dwarf Mistletoe Arceuthobium ... - Davidsonia

Viscin Cells in the Dwarf Mistletoe Arceuthobium ... - Davidsonia

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<strong>Davidsonia</strong> 17:3 81<br />

Image: Cynthia M. Ross<br />

Figure 3. A whole hydrated seed collected from cheesecloth <strong>the</strong> day after explosive<br />

discharge. The relative position of <strong>the</strong> embryo, endosperm, and visc<strong>in</strong> cells are<br />

<strong>in</strong>dicated; note <strong>the</strong> green colour of <strong>the</strong> visc<strong>in</strong> cells.<br />

en = endosperm; ey = embryo; v = visc<strong>in</strong> cells; scale bar = 420 µm<br />

mechanism relies on tension due to dry<strong>in</strong>g ra<strong>the</strong>r than an accumulation<br />

of hydrostatic pressure. The “spr<strong>in</strong>gs” are oriented <strong>in</strong> a way that could<br />

allow uncoil<strong>in</strong>g to push <strong>the</strong> seed free from <strong>the</strong> fruit upon release of<br />

pressure.

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