Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 435976
Title Phylogenetic and nitrite oxidoreductase activities of nitrobacteria and nitrospira isolated from shrimp pond sediment in East Java, Indonesia
Author(s) Hariati, A.M.; Aulanni'am, A.; Soemarno, S.; Marsoedi, A.; Verdegem, M.C.J.
Source Journal of Agriculture and Food Technology 1 (2011)12. - ISSN 2090-424X - p. 231 - 237.
Department(s) Aquaculture and Fisheries
Publication type Refereed Article in a scientific journal
Publication year 2011
Abstract Organic accumulation, resulted in ammonia and nitrite poisoning, is the main cause of shrimp pond collapse in Indonesia and the surrounding region. Two nitrifying bacteria were isolated from shrimp-pond sediment at Pasuruan, East Java, Indonesia. The study aimed to characterize and evaluate nitrite oxidoreductase ability of the bacteria. Comparative (phylogenetic) analysis based on 16S rRNA gene sequences revealed that both isolated bacteria were moderately related (77-90%) to uncultured clones of Nitrobacteria and Nitrospira. The nitrite oxidoreductase activity of both bacteria was comparable. However, per mg of protein, the enzymatic activity of Nitrobacteria was twice than Nitrospira. Keeping pond sediment optimal for these bacteria may result in more nitrite being transferred into nitrate, that is favorable for shrimp growth.
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