Phosphine and methane generation by the addition of organic compounds containing carbon–phosphorus bonds into incubated soil

Han, Shun; Zhuang, Yahui; Zhang, H.X; Wang, Zijian; Yang, Junjie

doi:10.1016/s0045-6535(02)00401-0

Cited by 40 publications

(19 citation statements)

References 27 publications

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“…This steady-state concentration of reduced P indicates active maintenance of reduced P in the environment, as reduced P can be oxidized to phosphate by microbes under relatively short time scales (26,27). Phosphine production is generally known to be highest in high P environments (28), under lower pH conditions (29), and can be high in arctic regions (30), consistent with the thermodynamics of the disproportionation reaction.…”

Section: Florida Water Analysismentioning

confidence: 64%

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Redox chemistry in the phosphorus biogeochemical cycle

Pasek

Sampson

Atlas

2014

Proc. Natl. Acad. Sci. U.S.A.

146

107

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The element phosphorus (P) controls growth in many ecosystems as the limiting nutrient, where it is broadly considered to reside as pentavalent P in phosphate minerals and organic esters. Exceptions to pentavalent P include phosphine-PH 3 -a trace atmospheric gas, and phosphite and hypophosphite, P anions that have been detected recently in lightning strikes, eutrophic lakes, geothermal springs, and termite hindguts. Reduced oxidation state P compounds include the phosphonates, characterized by C−P bonds, which bear up to 25% of total organic dissolved phosphorus. Reduced P compounds have been considered to be rare; however, the microbial ability to use reduced P compounds as sole P sources is ubiquitous. Here we show that between 10% and 20% of dissolved P bears a redox state of less than +5 in water samples from central Florida, on average, with some samples bearing almost as much reduced P as phosphate. If the quantity of reduced P observed in the water samples from Florida studied here is broadly characteristic of similar environments on the global scale, it accounts well for the concentration of atmospheric phosphine and provides a rationale for the ubiquity of phosphite utilization genes in nature. Phosphine is generated at a quantity consistent with thermodynamic equilibrium established by the disproportionation reaction of reduced P species. Comprising 10-20% of the total dissolved P inventory in Florida environments, reduced P compounds could hence be a critical part of the phosphorus biogeochemical cycle, and in turn may impact global carbon cycling and methanogenesis.phosphorus | redox chemistry | phosphonates | element cycling | biogeochemistry L ife as we know it is dependent on phosphate esters, which act in metabolism as energy-storing polyphosphates and cofactors, in replication and transcription as the backbone of RNA and DNA, and in cell structure as phospholipids. Phosphate minerals are the ultimate source of phosphate in the biosphere. However, most phosphate minerals are poorly soluble and slow to dissolve at neutral pH and at room temperature; hence phosphorus (P) is the limiting nutrient in many ecosystems. Phosphorus cycling is especially slow compared with carbon and nitrogen cycling (1).Although inorganic phosphate and phosphate esters (P 5+ ) are viewed as the prevalent compounds in nature, phosphonates, with C−P bonds, are ubiquitous, comprising up to 25% of the dissolved organic P in some natural samples (2). The P in phosphonates has a stronger potential for electron sharing than the P in phosphates, based on the electronegativity difference between C and P (2.5-2.2) compared with O (3.5) and P in phosphates. With a greater potential for electron sharing, the formal oxidation state of P in phosphonates is thus less than +5; hence phosphonates represent a reduced oxidation state P (hereafter, reduced P) speciation in the environment. Phosphonates appear to be critical to some biogeochemical pathways, including a role for methylphosphonate in aerobic methanogenesis in marine environme...

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Section: Florida Water Analysismentioning

confidence: 64%

“…Microbial phosphine generation is coupled to methanogenesis (16,28). Aerobic methanogenesis begins with methylphosphonate as the methane precursor (35)(36)(37).…”

Section: Discussionmentioning

confidence: 99%

Redox chemistry in the phosphorus biogeochemical cycle

Pasek

Sampson

Atlas

2014

Proc. Natl. Acad. Sci. U.S.A.

146

107

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“…c Rooted phylogenetic tree of the firmicutes PH 3 production (Zhu et al 2014). Studies by Han et al (2002) indicated that easily decomposable organic matter contributed to phosphine production in sediments or culture media. Our results were similar to those of the studies conducted by Li et al (2010) in sediments.…”

Section: Discussionmentioning

confidence: 99%

“…PH 3 can be produced by microbial reduction of Pcontaining substances (Geng et al 2005a), which may contribute to special enzyme related to phosphine, and lots of studies (Jenkins et al 2000;Han et al 2002;Geng et al 2005b;Liu et al 2008) indicate that phosphine production presents a close relationship with microbial metabolism, or Responsible editor: Kirk T. Semple by abiotic mechanisms (Glindemann et al 1998) including phosphine generation by a combination of high temperature and chemical reduction of phosphate, for example, in metallurgy (Zhu et al 2009). However, the reductive biological generation of phosphine from phosphate is an ongoing question (Glindemann et al 1998).…”

Section: Introductionmentioning

confidence: 99%

Matrix-bound phosphine in the paddy soils of South China and its relationship to environmental factors and bacterial composition

Niu

Wang

et al. 2015

J Soils Sediments

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Purpose Phosphine is a significant gaseous carrier in the P cycle. The matrix-bound phosphine in the paddy soils and its relationship to environmental variables and bacterial community composition were studied. Materials and methods The ambient levels of matrix-bound phosphine (MBP) from four distinct sites in South China were investigated. Molecular fingerprint technology polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) was used to further explore the potential connections between MBP and composition of bacterial communities. Results and discussion The relationship between MBP and environmental factors was analyzed to determine the factors affecting the distribution of MBP. Stepwise regression analysis showed that the pH, phosphatase, and organic matter were among the principal environmental factors of the 18 examined factors affecting the MBP levels in paddy soil and explained 38.2 % (p<0.05) of the total variance observed by principal component analysis (PCA) and redundancy analysis (RDA) analysis.Conclusions We found that pH, phosphate, and organic matter had a significant relationship with MBP (p < 0.05). Sequencing results indicated that MBP might have a close relationship with the bacterial community composition.

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“…Phosphine (PH 3 ) is a highly toxic gas and also a reductive atmospheric trace gas, which competes with methane and other greenhouse gases for hydroxyl radicals and thus enhances an indirect greenhouse effect [1,2] . For more than one hundred years, the sources and mechanisms of biological PH 3 formation in natural environments have been investigated and discussed [3][4][5][6][7][8][9][10] .…”

mentioning

confidence: 99%

The first determination of atmospheric phosphine in Antarctica

et al. 2007

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It is generally thought that phosphine (PH 3 ) concentrations exist at the low ng/m 3 level during the night and at the pg/m 3 level during daylight in the remote atmosphere of the lower troposphere. The first determination of gaseous PH 3 on the Antarctic Millor Peninsula is reported in this paper. No PH 3 was detected in the air samples around 10:00 when it was sunny. However, PH 3 was found in all the 10:00 air samples when it was cloudy or light snow with the average of 75.3±28.8 ng/m 3 (n=5). It was also found in nearly all the samples around 22:00 with the average of 87.2±70.9 ng/m 3 (n=11). Atmospheric PH 3 concentrations around 22:00 were generally higher than those around 10:00 in January and they were almost the same in February. In addition, PH 3 concentrations around 22:00 showed a downtrend with the decreasing air temperature, suggesting that light intensity and air temperature had an important effect on atmospheric PH 3 concentration. It is very surprising to have found that high concentrations of PH 3 exist in the Antarctic atmosphere under the influence of strong UV-radiation and light intensity. The tentative analyses show that dry, cold and very clean atmosphere may be very suitable for the PH 3 survival and cause the concentration to increase and accumulate in the local atmosphere. New approaches for the PH 3 formation and the process of atmospheric chemistry may exist under such an extreme environment. Atmospheric PH 3 may also be from the emissions of local sources.

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Phosphine and methane generation by the addition of organic compounds containing carbon–phosphorus bonds into incubated soil

Cited by 40 publications

References 27 publications

Redox chemistry in the phosphorus biogeochemical cycle

Redox chemistry in the phosphorus biogeochemical cycle

Matrix-bound phosphine in the paddy soils of South China and its relationship to environmental factors and bacterial composition

The first determination of atmospheric phosphine in Antarctica

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