eyespot


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Related to eyespot: ISPOT, Eye floaters

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 by Helminthosporium sacchari and characterized by yellowish oval lesions on the stems and leaves.
References in periodicals archive ?
To determine whether exposure to the eyespot image on the welcome page affected subjects' emotional states, they were asked to respond to the following item: "A number of words and phrases that describe different feelings and emotions appear below.
Otaki, "Artificially induced changes of butterfly wing colour patterns: dynamic signal interactions in eyespot development," Scientific Reports, vol.
[14.] Turner AS, Nicholson P, Edwards SG, Bateman GL, Morgan LW, Todd AD, Parry DW, Marshall J and M Nuttall Evaluation of diagnostic and quantitative PCR for the identification and severity assessment of eyespot and sharp eyespot in winter wheat.
Somaclonal variation and eyespot toxin tolerance in sugarcane.
(3) Although the poet does not name a particular species of butterfly, the blue eyespots suggest that she may be thinking of the Mourning Cloak, a common North American variety whose wings are decorated with round blue markings.
But, he believes the newfound type of eyespot is unique to the coral-dwelling life-forms.
Genetic control of Resistance to the sterol 14a-Demethylase inhibitor fungicide prochloraz in the cereal eyespot pathogen Tapesia yallundae.
Scattered randomly along the back half of the fish are 6 to 12 black eyespots that are often bordered with a white or yellow halo.
Regarding wing pattern the genera Mesosemia, Semomesia, Mesophthalma and Terathophtalma are similar having an eyespot placed immediately in the forewing discal cell apex with several narrow bands on the dorsal wings surface common in Mesosemia and Semomesia, but in the enigmatic Eunogyra all of these are absent.
1), and was distinguished from a similar genus (Glenodinium) by the absence of an eyespot (Ehrenberg 1830, 1838).
The pulsing vacuole that connects to the flagellar pore of the transversal flagellum is reddish and looks like an eyespot. Among diatoms, Odontella aurita (Lyngbye) Brebison and Nitzschia sigma (Kutzing) Smith were the most abundant species.
They are equipped with a flagellum, eyespot, vacuoles, chloroplasts, plastids, and a cell nucleus.