Advances in Microbial Ecology: Volume 8 by J. Gijs Kuenen, Lesley A. Robertson, Hans Van Gemerden

By J. Gijs Kuenen, Lesley A. Robertson, Hans Van Gemerden (auth.), K. C. Marshall (eds.)

Advances in Microbial Ecology was once confirmed through the overseas Com­ mittee on Microbial Ecology (ICOME) as a car for the ebook of severe studies chosen to mirror present developments within the ever-expanding box of microbial ecology. lots of the chapters present in Advances in Microbial Ecology were solicited through the Editorial Board. people are inspired, even though, to put up outlines of unsolicited contributions to any member of the Editorial Board for attention for inclusion in a next quantity of Advances. Contributions are anticipated to be in­ intensity, even provocative, stories of topical curiosity with regards to the ecology of microorganisms. With the ebook of quantity eight of Advances we welcome to the panel of members Martin Alexander, the founding editor of this sequence, who discusses the diversity of traditional constraints on nitrogen fixation in agri­ cultural ecosystems. Ecological facets of cellulose degradation are dis­ stubborn via L. G. Ljungdahl and ok. -E. Eriksson, and of heavy steel responses in microorganisms via T. Duxbury. In his bankruptcy, A. Lee con­ siders the gastrointestinal tract as an ecological method, and reviews at the risk of manipulating the program. The advanced interactions between cardio and anaerobic sulfur-oxidizing micro organism are mentioned when it comes to common habitats and chemostat tradition by way of J. G. Kuenen, L. Rob­ ertson, and H. van Gemerden. ultimately, J. A. Robinson provides the benefits and boundaries within the use of nonlinear regression research in identifying microbial kinetic parameters in ecological events. okay. C. Marshall, Editor R. M. Atlas B. B.

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Wind, blowing each day for some time, creates an internal seiche in the lake. The bloom thus moves up and down with the thermocline. For ease of comparison, the impact of the internal seiche on the light conditions in the lake is neglected. ] coexist because of the availability of two substrates, sulfide and acetate. The former was used preferentially by the Chlorobium and the latter by the Thiocapsa. When light was supplied in excess, both organisms should have been able to grow mixotrophically on both substrates, but instead of coexisting, the Thiocapsa completely outcompeted the other species (van Gemerden, 1983).

It has been suggested that the role of T. thiooxidans might be the removal of a coating of elemental sulfur from the pyrite crystals. 3. Thiobacillus versutus/Thiobacillus neapolitanus An apparently commensal relationship was reported by Gottschal et al. 1. It was found that when T. neapolitan us, an obligate chemolithotroph, and T. versutus, a facultative chemolithotroph, were grown together in a chemostat with thiosulfate as the growth-limiting substrate, T. neapolitan us became the dominant species and T.

The Chr. weissei was able to coexist with and even dominate the smaller organism during light/dark regimes (Table V). The general conclusion from these results is that the ability to rapidly store intracellular sulfur, an ability probably shared by all of the large Table V. Chromatium vinosum and Chromatium weissei in Balanced Coexistence in Sulfide-Limited Continuous Cultures under Various Light Regimens· Relative abundance during steady state (%) Illumination regimen C. vinosurn C. weissei Continuous light 18 hr light, 6 hr dark 6 hr light, 6 hr dark 4 hr light, 6 hr dark 100 100 63 30 0 0 37 70 aAfter van Gemerden (1974).

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