نتایج جستجو برای: nitrate reduction

تعداد نتایج: 520856  

Journal: :Plant physiology 1973
C A Morilla J S Boyer R H Hageman

Desiccation of 8- to 13-day-old seedlings, achieved by withholding nutrient solution from the vermiculite root medium, caused a reduction in nitrate reductase activity of the leaf tissue. Activity declined when leaf water potentials decreased below -2 bars and was 25% of the control at a leaf water potential of -13 bars. Experiments were conducted to determine whether the decrease in nitrate re...

Journal: :Microbiology 2009
Sven Malm Yvonne Tiffert Julia Micklinghoff Sonja Schultze Insa Joost Isabel Weber Sarah Horst Birgit Ackermann Mascha Schmidt Wolfgang Wohlleben Stefan Ehlers Robert Geffers Jens Reuther Franz-Christoph Bange

Mycobacterium tuberculosis can utilize various nutrients including nitrate as a source of nitrogen. Assimilation of nitrate requires the reduction of nitrate via nitrite to ammonium, which is then incorporated into metabolic pathways. This study was undertaken to define the molecular mechanism of nitrate assimilation in M. tuberculosis. Homologues to a narGHJI-encoded nitrate reductase and a ni...

Journal: :Chemical communications 2011
Jie Yin Junhu Wang Yanjie Zhang Huanqiao Li Yujiang Song Changzi Jin Ting Lu Tao Zhang

Monomorphic Pt octapod and tripod nanocrystals have been successfully synthesized by an iron nitrate modified polyol process, in which iron nitrate has been proven to be vitally important for slowing down the reduction rate of Pt precursors.

Journal: :Applied and environmental microbiology 2009
R J W Brooijmans W M de Vos J Hugenholtz

Lactobacillus plantarum WCFS1 requires both heme and menaquinone to induce respiration-like behavior under aerobic conditions. The addition of these compounds enhanced both biomass production, without progressive acidification, and the oxygen consumption rate. When both heme and menaquinone were present, L. plantarum WCFS1 was also able to reduce nitrate. The ability to reduce nitrate was sever...

Journal: :Research Letters in Nanotechnology 2008

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