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The upcoming discussion will update you about the differences between Stomata and Hydathodes.
Difference # Stomata:
1. Stomata are found in the aerial parts of all land plants.
2. They are found on the surfaces of both the leaves and the young parts of the stem, flowers, fruits, etc.
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3. Guard cells may be surrounded by subsidiary cells.
4. Guard cells contain chloroplasts.
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5. The stomata can be opened or closed by the turgor change^ in the guard cells.
6. Stomata pass out water vapours.
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7. Along with water vapours, stomata allow passage of CO2 and O2.
8. Each stomate leads internally to a sub-stomatal cavity.
9. They do not have any connection with a vein ending.
Difference # Hydathodes:
1. Hydathodes occur on the leaves of only a few plants.
2. Hydathodes occur on the margins and tips of the leaves.
3. Subsidiary cells are absent.
4. Cells bordering a water pore are usually achlorophyllous.
5. Hydathodes possess permanent pores because the guard cells surrounding them are immobile.
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6. Haydathodes send out liquid water.
7. Small quantities of solutes also pass out dissolved in guttated liquid.
8. Hydathode possesses loosely arranged epithem cells below its pore.
9. Hydathodes contain a vein ending.
