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sterigma
[ stuh-rig-muh ]
noun
- a small stalk that bears a sporangium, a conidium, or especially a basidiospore.
sterigma
/ stəˈrɪɡmə /
noun
- biology a minute stalk bearing a spore or chain of spores in certain fungi
Other Words From
- ster·ig·mat·ic [ster-ig-, mat, -ik, steer-], adjective
Word History and Origins
Origin of sterigma1
Word History and Origins
Origin of sterigma1
Example Sentences
The size varies, but a typical spore is about 10 microns, or 1/2,500th of an inch, in width, and it is attached at the end of a stalk called a sterigma.
“There’s a point at the top of the sterigma, and it has one of the most poetic names in biology,” Dr. Pringle said.
D, Passage of a nucleus through the sterigma into the basidiospore.
The young basidium contains two nuclei, which later fuse; the fusion-nucleus then undergoes two successive divisions, involving a reduction of chromosomes, and each of the four resultant nuclei passes through a sterigma into a basidiospore.
Every sterigma at first produces at its point a little round protuberance, which, with a strong narrow basis, rests upon the sterigma.
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