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M E Tyler

Publications and source records attributed to M E Tyler.

4 recordsLinked to original sources

Ophthalmomyiasis interna posterior. Subretinal tracks and intraocular larvae.

Only seven cases of identifiable intraocular botfly larva infestation have been reported in North America--five since 1969. Two additional cases, both from the same institution, are documented here. The offending maggot or larva was visible in both instances. The findings in each case were diagnostically and morphologically striking. The characteristic funduscopic finding of subretinal tracks, along with the appearance of the larva--encysted in one patient and free-floating in the other-deserves emphasis, since this condition is not always benign and may not be as rare as previously assumed.

Adolescent

Isolation of Azospirullum from diverse geographic regions.

We have isolated Azospirillum (Spirullum lipoferum) from roots of grasses of several genera collected from a number of tropical and subtropical-temperate locations. Pure cultures were obtained from a small percentage of samples; no higher percentage was secured from tropical than from other grasses. Acetylene reduction and distinctive growth in N-free soft agar deeps were inadequate to identify this genus, although helpful in initial screening. Fluorescent antibody tests with antiserum against characterized strains were helpful. There is some evidence that this genus of bacteria may be favored in the rhizoplane.

Africa