Enhanced degradation relationships

More detailed studies of the microbial relationships involved In enhanced degradation of the dicarboximide fungicides in soils are currently being undertaken in the Department of the Environmental... 

Reaction of human a-L-idosiduronase with glycosides of sulfated-2,5-anhydrohexitols and anhydro-D-mannitol showed that sulfation enhanced catalysis. A model of substrate binding and a relationship to the disease termed mucopolysaccharidosis, which leads to incompletely degraded fragments of heparan and dermatan sulfates, was proposed.2870... 

In long-term evolutionary scales, humans now have the abilities to intervene rapidly in this interdependent relationship and alter the stability of the rates of metabolism of organic matter. For example, reduction of ozone in the stratosphere and associated increased UV irradiance could lead to accelerated photolytic degradation of macromolecules of DOM by both abiotic and biotic pathways to C02. In addition, the photolytic enhancement of substrates for bacterial metabolism by UV photolysis can result in accelerated rates of biogeochemical cycling of nutrients and stimulated... 

Vinclozolin degradation was affected only slightly by pretreatment of the soil with iprodione, which agrees with previous observations (12), and also affected to some extent by prior treatment with myclozolin. There are, therefore, no simple relationships where cross-enhancement is concerned, and it is probable that the only way to gain a better understanding of such phenomena will be to isolate the specific organisms and enzyme systems responsible for degradation. 

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