[Oil-oxidizing potential of associative rhizobacteria of the genus Azospirillum].

The oil-oxidizing potential of associative rhizobacteria of the genus Azospirillum was studied under laboratory conditions. After screening, A. brasilense strain SR80 was chosen for further investigation. The strain was capable of degrading 56.5% of crude oil (added in a concentration of 1%) over 14 days in a medium containing malate as an additional source of carbon and energy. Studies of associative properties showed that the strain had positive chemotaxis to wheat root exudates, colonized wheat roots, and produced indolyl-3-acetic acid. The synthesis of indolyl-3-acetic acid was not inhibited by oil. Under hydroponic conditions, crude oil stimulated growth of A. brasilense SR80, which promoted development of the wheat root system in the presence of oil and enhanced the level of oil degradation by the plant-microbial association.

[The clinical laboratory indices in ancylostomiasis among the population of Kindia Prefecture (Republic of Guinea)]. / Kliniko-laboratornye pokazateli pri ankilostomidozakh u naseleniia prefektury Kindia (Gvineiskaia Respublika).

Clinical and laboratory data have been compared in patients with ankylostomiasis and healthy population of Guinea Republic. An increase in ankylostomiasis morbidity during the humid season has been observed. The clinical pattern of the disease did not differ from that earlier described in literature. Anemia and eosinophilia were the most persistent signs of the disease. The patients with ankylostomiasis revealed an elevated IgM level and a trend towards an increase in 0-lymphocyte population, which is indicative of certain shifts in cellular and humoral immunity.

[The clinico-immunological characteristics of intestinal schistosomiasis in the Republic of Guinea]. / Kliniko-immunologicheskaia kharakteristika kishechnogo shistosomoza v Gvineiskoi Respublike.

The results of clinic and immunological examination of patients with intestinal schistosomiasis at the stage of developed infection in the natives of Guinea are presented. Polymorphism of clinical manifestations was accompanied by diagnostically significant changes in hematological (eosinophilia, increased erythrocyte sedimentation rates) and immunological (higher absolute count of B lymphocytes, IgM levels, amount of T suppressors, lower Tx/Tc ratio) parameters, which, together with the results of parasitological studies, are to be taken into account during the choice of treatment and control over its efficacy.