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eyespot |
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eyespot [′ī‚spät] (botany) A small photosensitive pigment body in certain unicellular algae. A dark area around the hilum of certain seeds, as some beans. (invertebrate zoology) A simple organ of vision in many invertebrates consisting of pigmented cells overlying a sensory termination. (plant pathology) A fungus disease of sugarcane and certain other grasses which is caused byHelminthosporium sacchariand characterized by yellowish oval lesions on the stems and leaves. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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A FLATWORM has light-sensitive areas called eyespots on its head. By tracking the activity of Distal-less, the team learned that eyespots bloom late in the final stages of growth, just before butterflies emerge from their cocoons. Thus, while all wing sections can generate eyespots, only certain ones do. |
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