+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Inducible nitrate reductase of rice plants as a possible indicator for nitrification in water logged paddy soils

, : Inducible nitrate reductase of rice plants as a possible indicator for nitrification in water logged paddy soils. Plant & Soil 116(2): 197-206

When following the pattern of the disappearance of NH4+ from ammonium sulfate applied to the flooded soil-rice plant system (field and greenhouse experiments) during a growing season, it was observed that the lowest NH4+-N level coincided with the highest value of NR activity in the leaves. Nitrate was detected in both the root and shoot systems of the rice plants and autotrophic nitrifiers (Nitrosomonas and Nitrobacter) were particularly abundant. Since it was also demonstrated in this work that the NR activity of rice plants grown with nitrate fertilization (growth chamber culture experiments) was inducible by its substrate, it can be assumed that NH4+-N oxidation takes place in the water-logged soil studied. Therefore, the occurrence of the nitrification process following NH4+-N fertilizer application can be predicted by the in vitro and in situ evaluation of the NR activity of the rice leaf as an indicator.


Other references

Simpson, C.T., 1891: Notes on Unionidae. Naut, V 86-88

Haseley, Simon R., 2002: Carbohydrate recognition: A nascent technology for the detection of bioanalytes. Detection, identification and characterisation of biological material, for example micro-organisms, toxins and viruses, occupy an important position in industrial, medical and environmental analysis. Bioanalytes may be investigated by one of numer...

Pizarro, K.A.; Jones, M.L.; Knox, J., 1994: An in vitro study of the effects of different crystal growth solutions on the topography of the enamel surface. This study evaluated the effect on the topography of the enamel surface of applying various solutions based on polyacrylic acid. This base solution consisted of 50 per cent aqueous polyacrylic acid (molecular weight 5000) and concentrated sulphuri...

Recher, H.F.Jr; Davis, W.E., 1998: The foraging profile of a wandoo woodland avifauna in early spring. This study reports on the foraging profile of a wandoo woodland avifauna at Dryandra in Western Australia, Australia. Despite its geographical isolation, wandoo woodland shares a large number of species with woodland bird communities in eastern Au...

Davis, P.L.; Hofmann, R.C., 1973: Reduction of chilling injury of citrus fruits in cold storage by intermittent warming. Intermittent warming of Marsh grapefruit in cold storage reduced the incidence of pitting and brown staining, two symptoms of chilling injury. One-week intervals of warming at 70 deg F for 1 day (8 h) were more beneficial than warming at 2-week in...

Anonymous, 1969: Special studies in graduate medical education. JAMA 210(8): 1542-1555

Anonymous, 1988: 1987 summer feeder cattle sales results. Publication Virginia Cooperative Extension Service: (400-115)

Mazur, N.A., 2006: Clinical pharmacology of nitrites and their efficacy. Kardiologiia 46(8): 55-62

Sandals, W.C.; Curtis, R.A.; Cote, J.F.; Martin, S.W., 1979: The effect of retained placenta and metritis complex on reproductive performance in dairy cattle -- a case control study. A study of the computer stored records of 293 dairy cows and 652 calvings reveals the effects of retained placenta and metritis complex on reproductive performance. The overall incidence rate of retained placenta was 11.2%. Retained placenta was 4...

Campbell, A.W., 2012: A vital field. Advances in Mind-Body Medicine 26(1): 6-6