Occurrence of Purple Sulfur Bacteria in a Sewage Treatment Lagoon 1

Holm, Harvey W.; Vennes, John W.

doi:10.1128/aem.19.6.988-996.1970

Cited by 39 publications

(16 citation statements)

References 7 publications

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“…Lower or no populations of PSB and/or PNSB might be expected at the IN and/or OK lagoons since the populations would be reduced in the IN and OK lagoons as they froze during the winter whereas the NC lagoon did not (Madigan and Jung, 2009). The likely reduced populations in the IN and OK lagoons during the winter may have slowly rebuilt during the year (Holm and Vennes, 1970; Chen et al, 2003).…”

Section: Resultsmentioning

confidence: 99%

“…The production rate of H 2 S from HS − will only produce bubbles if the production exceeds the solution and transport rate of the H 2 S. Under suitable conditions, purple sulfur bacteria (PSB) from the family Chromatiaceae in the phototrophic regions of the lagoon can photosynthesize anoxygenically using H 2 S as an electron donor (among other sources) and oxidize H 2 S to SO 4 2− (Chen et al, 2003; VanGemerden and Mas, 1995). Consequently the presence of large populations of PSB will tend to lower H 2 S emissions from an anaerobic waste lagoon (Holm and Vennes, 1970). Purple nonsulfur bacteria (PNSB) have also been found in swine lagoons (Chen et al, 2003).…”

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confidence: 99%

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Hydrogen Sulfide Emissions from Sow Farm Lagoons across Climates Zones

et al. 2013

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Hydrogen sulfide (HS) emissions were measured periodically over the course of 2 yr at three sow waste lagoons representing humid mesothermal (North Carolina, NC), humid microthermal (Indiana, IN), and semiarid (Oklahoma, OK) climates. Emissions were determined using a backward Lagrangian stochastic model in conjunction with line-sampled HS concentrations and measured turbulence. The median annual sow-specific (area-specific) lagoon emissions at the OK farm were approximately 1.6 g head [hd] d (5880 µg m s), whereas those at the IN and NC sow farms were 0.035 g hd d (130 µg m s), and 0.041 g hd d (260 µg m s), respectively. Hydrogen sulfide emissions generally increased with wind speed. The daily HS emissions from the OK lagoon were greatest during the first half of the year and decreased as the year progressed. Emissions were episodic at the NC and IN lagoons. The generally low emissions at the NC and IN lagoons were probably a result of significant populations of purple sulfur bacteria maintained in the humid mesothermal and humid microthermal climates. Most of the large HS emission events at the NC and IN lagoons appeared to be a result of either precipitation events or liquid pump-out events. The high emissions at the OK lagoon in a semiarid climate were largely a result of high wind speeds enhancing both lagoon and air boundary layer mixing. The climate (air temperature, winds, and precipitation) appeared to influence the HS emissions from lagoons.

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

Hydrogen Sulfide Emissions from Sow Farm Lagoons across Climates Zones

et al. 2013

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“…Previously, we found that cytochrome c ′ (PHCP) from thermophilic Hydrogenophilus thermoluteolus (formally called Pseudmonas hydrogenothermophila ) growing optimally at 52°C showed high thermal stability compared with cytochrome c ′ (AVCP) from mesophilic Allochromatium vinosum growing optimally at 25–30°C . Cytochrome c ′ from another mesophilic bacterium, Shewanella amazonensis , growing optimally at 37°C exhibited thermal stability that was intermediate between those of AVCP and PHCP .…”

Section: Introductionmentioning

confidence: 99%

Structural and functional insights into thermally stable cytochrome c′ from a thermophile

et al. 2017

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Thermophilic Hydrogenophilus thermoluteolus cytochrome c′ (PHCP) exhibits higher thermal stability than a mesophilic counterpart, Allochromatium vinosum cytochrome c′ (AVCP), which has a homo‐dimeric structure and ligand‐binding ability. To understand the thermal stability mechanism and ligand‐binding ability of the thermally stable PHCP protein, the crystal structure of PHCP was first determined. It formed a homo‐dimeric structure, the main chain root mean square deviation (rmsd) value between PHCP and AVCP being 0.65 Å. In the PHCP structure, six specific residues appeared to strengthen the heme‐related and subunit–subunit interactions, which were not conserved in the AVCP structure. PHCP variants having altered subunit–subunit interactions were more severely destabilized than ones having altered heme‐related interactions. The PHCP structure further revealed a ligand‐binding channel and a penta‐coordinated heme, as observed in the AVCP protein. A spectroscopic study clearly showed that some ligands were bound to the PHCP protein. It is concluded that the dimeric PHCP from the thermophile is effectively stabilized through heme‐related and subunit–subunit interactions with conservation of the ligand‐binding ability.Brief SummaryWe report the X‐ray crystal structure of cytochrome c′ (PHCP) from thermophilic Hydrogenophilus thermoluteolus. The high thermal stability of PHCP was attributed to heme‐related and subunit–subunit interactions, which were confirmed by a mutagenesis study. The ligand‐binding ability of PHCP was examined by spectrophotometry. PHCP acquired the thermal stability with conservation of the ligand‐binding ability. This study furthers the understanding of the stability and function of cytochromes c.

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“…Arbeiten iiber die autotrophen Bakterien beschaftigen sich in1 wesentlichen niit dem Gehalt und der Verteilung dieser Bakterien [151], wobei aus diesen Daten teilweise auch SchluIjfolgerungen auf die Aktivitat gezogen werden. Die Messung der heterotrophen Aktivitat wird voii den meisten Autoren mittels der Tracer-Technik durchgefiihrt.…”

Section: B Die Aktivitat Des Bakterioplanktonsunclassified

Stoffhaushalt stehender Gewässer Teil I: Stoffhaushalt der Ökosystemelemente – Fortschrittsbericht

Benndorf

Hofmann

Höhne

et al. 1973

Acta hydrochim. hydrobiol.

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Zusnntmwjassunq: Der vorliegende Literaturbericht will fiber die Fortschritte, die in den vergangenen zwei bis drei Jahren bei der Erforschung des Stoffhaushaltes stehender Gewasser gemarht wurden, berichten. Es erschion jedoch ratsani, in Einzelfallen auch wichtige Arbeiten zu zitieren, deren Erscheinungsdatum achon etwas langer zuruckliegt. D. GrazingDie Verluste durch ZooplanktonfraD wcrden in1 Xapitel 1.3. niit behandelt. Qualitative ZusammensetzungDer Arten-Diversity-lndex ist ein quantitativer Ausdruck der Stiuktur innerhalb einer Mischpopulation, ein Wert, der in Zeit und Raum analysiert werden kann [107]. E r gibt ein realistisches Bild der Populationsstruktur. Die multiple Regressionsanalyse zeigt bei Licht und Temperatur einen positiven Koeffizienten. ist [133, 84, 182, 135, 163, 326, 120, 315, 333, 285, 76, 363, 1501.Die iiberwiegende Verfahrensweise in der qualitativen Beurteilung der Phytoplanktonzusammensetzung wird z. Z. noch durcli eine deskriptive Analyse charakterisiert. Der dabei notwendige Zeitaufwand steht in keinem giinstigen Verhaltnis zur Anssagekraft. Es ware sehr wunschenswert, wenn sich die bereits vorhandenen Ansatze in den Beniiihungeh zur mathematischen Fassung dieser Diagnose [z. B. 201 weiter durchsetzen wiirden und daniit eine bessere Aussage fur die Nutzung und Vergleichbarkeit der Ergebnisse moglich ware. ZooplanktonSchon an anderer Stclle dieses Berichtes wird auf die Bedeutung des Zooplanktons fur die Beurteilung des Stoffhaushaltes stehender Geuasser hingewiesen. Dabei tritt die Beziehung zwischen den einzelnen Okosystemelenienten sehr deutlich hervor. Als Bezugseleniente sind von Bedeutung: Bakterienplankton, alle systeniatischen Gruppen des Phytoplanktons, sow ie alle in der Nahrungskette als Konsumenten des Zooplanktons auftretende Organisnien. Innerhalb dieser Nahrungskette kommt dem Zooplankton beim Abbau des Phytoplanktons eine betrachtliche Bedeutung zu. Interessant jst in diesem Zusanimenhang, daS der Grazing-Effekt in der Winterperiodc wesentlich hoher liegt als bisher angenommen. Die Beziehung zwischen der Teinperatur und der Entwicklungszeit bzw. dem Grazing-Effekt ist fur die Konsequenzen bei der Aufwarmung von Seen bcziiglich der Stabilitat der Nahrungskette von Bedeutung, sollte also in Zukunft grofiere Beachtung finden.

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Occurrence of Purple Sulfur Bacteria in a Sewage Treatment Lagoon 1

Cited by 39 publications

References 7 publications

Hydrogen Sulfide Emissions from Sow Farm Lagoons across Climates Zones

Hydrogen Sulfide Emissions from Sow Farm Lagoons across Climates Zones

Structural and functional insights into thermally stable cytochrome c′ from a thermophile

Stoffhaushalt stehender Gewässer Teil I: Stoffhaushalt der Ökosystemelemente – Fortschrittsbericht

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