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  • 1
    Electronic Resource
    Electronic Resource
    Flavonoids as inducers of extracellular proteins and exopolysaccharides of Sinorhizobium fredii (1999)
    Springer
    Biology and fertility of soils 30 (1999), S. 83-89 
    Details
    ISSN: 1432-0789
    Keywords: Key words Sinorhizobium fredii ; Flavonoids ; Extracellular proteins ; Exopolysaccharides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract  Some flavonoids present in root exudates are inducers of nod genes in rhizobia-legume symbioses. They also induce changes in the molecular weight, structure, and level of secretion of some extracellular proteins, exopolysaccharides (EPS) and lipopolysaccharides. We showed that incubation of Sinorhizobium fredii USDA 257 with four flavonoids (genistein, naringenin, chrysin, and apigenin) promoted its growth in the late log phase. By contrast, only genistein accelerated the growth of S. fredii TU 6 under the same conditions. When both strains were incubated with naringenin the synthesis of EPS decreased. However, this compound increased the secretion of extracellular proteins in the early log phase. The specific mode of action of naringenin is still not clear.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003740050591
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Symmetric Skorohod topology onn-variable functions and hierarchical Markov properties ofn-parameter processes (1995)
    Springer
    Probability theory and related fields 103 (1995), S. 25-43 
    Details
    ISSN: 1432-2064
    Keywords: 31C15 ; 60J25 ; 60J30 ; 60J45
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary We introduce a new Skorohod topology for functions of several variables. Since ann-variable function may be viewed as a one-variable function with values in the set of (n−1)-variable functions, this topology is defined by induction from the classical Skorohod topology for one-variable functions. This allows us to define the notion of completen-parameter symmetric Markov processes: Such processes are, for any 1≤p≤n, rawp-parameter Markov processes (in the sense of our previous paper [17]) with values in the space of (n−p)-variable functions. We prove, for these processes and their Bochner subordinates, a maximal inequality which implies the continuity of additive functionals associated with finite energy measures. We finally present several important examples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01199030
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Markov properties of multiparameter processes and capacities (1995)
    Springer
    Probability theory and related fields 103 (1995), S. 45-71 
    Details
    ISSN: 1432-2064
    Keywords: 31C15 ; 60J25 ; 60J30 ; 60J45
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary We study a class of multiparameter symmetric Markov processes. We prove that this class is stable by subordination in Bochner's sense. We show then that for these processes, a probabilistic and an analytic potential theory correspond to each other. In particular, additive functionals are associated with finite energy measures, hitting probabilities are estimated by capacities, quasicontinuity corresponds to path-continuity. In the last section, examples show that many earlier results, as well as new ones, in this domain can be obtained by our method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01199031
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    Paper (German National Licenses)
    Fulltext
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