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Biomedical subjects

J Papa

Publications and source records attributed to J Papa.

35 records · Page 2Linked to original sources
PubMedDate not supplied

[Preliminary serological study of fungus cultivated by the manioc ant Acromyrmex octospinosus Reich in Guadeloupe].

The serologic study of four strains of fungus cultivated by Acromyrmex octospinosus (Reich) in Guadeloupe has revealed four major antigens common to all four strains. Two additional weaker antigens were present in some but not all strains, which may indicate quantitative differences in viral particles in the hyphae of the fungi. The use of serological techniques should facilitate taxonomic study of the fungi (and possibly the virus or viruses which parasitize the fungi) cultivated by different species of Attine ants.

Animals↗
PubMedDate not supplied

[Microbiological activity in the nests of Acromyrmex octospinosus Reich in Guadeloupe].

The nests of Acromyrmex octospinosus contain an important bacterial flora which shows a state of equilibrium; that is the result of the society activity. The ant-fungi directly grows on the leaf material brought in the nest; the microorganisms do not modify the substrate. Acromyrmex octospinosus is able to allow the growth of its fungus in pure culture in the presence of invading microflora.

Ammonia↗
PubMedDate not supplied

[Bacteriological inhibition in the nests of Acromyrmex octospinosus Reich].

Media prepared from nests of Acromyrmex octospinosus Reich show an inhibiting activity against strains of bacteria Gram + and Gram -. To demonstrate this activity it is necessary to use a particular methodology using important concentration of extract (Mass effect). The main reason of the inhibition is due to the acidity of pH (pH = 5.0). This effect explains how the ants protect their nest against the bacterial competitors.

Animals↗