Nonlegumes, legumes, and root nodules harbor different arbuscular mycorrhizal fungal communities

Article Abstract:

The arbuscular mycorrhizal fungi (AMF) community composition in the roots of three nonlegumes and in the roots and root nodules of three legumes growing in natural dune grassland were analyzed. Results indicate that AMF communities vary between plant functional groups (legumes and nonlegumes), between plant species, and between parts of a root system (roots and root nodules).

Microbiological research, Mycorrhizas, Mycorrhizae

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Proof that Burkholderia strains form effective symbioses with legumes: A study of novel Mimosa-nodulating strains from South America

Article Abstract:

Twenty Minosa-nodulating bacterial strains from Brazil and Venezuela, together with eight reference Mimosa-nodulating rhizobial strains and two other beta-rhizobial strains are examined by amplified rRNA gene restriction analysis. The 16S rRNA gene sequences of 15 of the 20 strains are determined and all are revealed to belong to the genus Burkholderia.

Genetic research

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Diversity and distribution of Planctomycetes and related bacteria in the suboxic zone of the Black sea

Article Abstract:

Samples from six depths of Black sea's suboxic xone are analyzed for 16S rRNA gene sequence information. The distribution of known anaerobic ammonium oxidation (anammox) bacteria, many unknown Planctomycetes, and other phylotypes are examined in relation to the local and redox conditions.

Anaerobic bacteria, Black Sea

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