Aerobic Granules
Mostrando 13-15 de 15 artigos, teses e dissertações.
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13. Amylolytic Activities in Cereal Seeds under Aerobic and Anaerobic Conditions.
An adequate carbohydrate supply contributes to the survival of seeds under conditions of limited oxygen availability. The amount of soluble, readily fermentable carbohydrates in dry cereal seeds is usually very limited, with starch representing the main storage compound. Starch breakdown during the germination of cereal seeds is the result of the action of h
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14. Flocculation in Azospirillum brasilense and Azospirillum lipoferum: exopolysaccharides and cyst formation.
The phenomena of flocculation and floc formation by Azospirillum brasilense Sp7 (ATCC 29145) and Azospirillum lipoferum Sp59b (ATCC 29707) were studied in aerobic liquid cultures. Carbon sources representative of various entry pathways in combination with various nitrogen sources induced flocculation in both species of azospirilla. Noticeably, the combinatio
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15. Survival of Denitrifiers in Nitrate-Free, Anaerobic Environments
Experiments were undertaken to explain the occurrence of a high denitrification capacity in anaerobic, NO3--free habitats. Deep layers of freshwater sediments that were buried more than 40 years ago and digested sludge were the habitats studied. The denitrifier populations were 3.1 × 103 and 3.1 × 105 cells cm-3 in deep sediments from a river and lake, res