Ethylene and Agriculture: the Role of the Microbe

Primrose, Sandy B.

doi:10.1111/j.1365-2672.1979.tb02579.x

Cited by 83 publications

(25 citation statements)

References 82 publications

(53 reference statements)

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“…( 5 ) Many species of bacteria can produce ethylene in the absence of acetylene (Primrose 1979). However, ethylene can also be oxidized in the absence of acetylene and thus measurements of endogenous ethylene production in control sediments without added acetylene may underestimate the gross rate of ethylene production.…”

Section: O/ Omentioning

confidence: 99%

Nitrogen fixation and 15N2 calibration of the acetylene reduction assay in coastal marine sediments

Seitzinger¹,

Garber²

1987

Mar. Ecol. Prog. Ser.

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Simultaneous assays of di-nitrogen fixation were carried out in sediments from Narragansett Bay, Rhode Island (USA) using the acetylene reduction technique and I5N2 tracer. The ratio of moles of acetylene reduced to moles of I5N recovered in ammonium and labile organic-N pools in estuarine sediments under anaerobic conditions ranged from approximately 10:l to nearly 100:l. The ratio of acetylene reduced to "N fixed was always significantly greater than the theoretical 3:l ratio. Rates of both acetylene reduction and I5N2 fixation increased with the addition of labile organic carbon (as sucrose) to the sediments. Ratios of acetylene reduction:"N, fixation in the sucrose-addition sediments (estimated to range between 12:l and 27:l) were generally lower than those found in sediments without sucrose additions, but were always significantly greater than the theoretical 3:l ratio. We caution that the use of the theoretical 3:l ratio in assays of N2 fixation by the acetylene reduchon technique in anaerobic coastal marine sediments results in overestimates of N2 fixation rates.

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Section: O/ Omentioning

confidence: 99%

Nitrogen fixation and 15N2 calibration of the acetylene reduction assay in coastal marine sediments

Seitzinger¹,

Garber²

1987

Mar. Ecol. Prog. Ser.

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“…DISCUSSION C 2 H 4 removal by soil samples was first reported by Abeles et al (1) and has been documented by several authors (5,26,27,35). The process is mainly mediated by ethylene-degrading bacteria, which have been isolated from various soil types (5,16,24,31). Thus, the capacity for C 2 H 4 degradation has been found in such genera as Xanthobacter, Nocardia, Mycobacterium, Rhodococcus, Bacillus, and Pseudomonas (25,31).…”

Section: Fate Of C 2 Hmentioning

confidence: 98%

Ethylene Removal at Low Temperatures under Biofilter and Batch Conditions

Elsgaard¹

2000

Appl Environ Microbiol

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Removal of the plant hormone ethylene (C 2 H 4 ) is often required by horticultural storage facilities, which are operated at temperatures below 10°C. The aim of this study was to demonstrate an efficient, biological C 2 H 4 removal under such low-temperature conditions. Peat-soil, acclimated to degradation of C 2 H 4 , was packed in a biofilter (687 cm 3 ) and subjected to an airflow (ϳ73 ml min ؊1) with 2 ppm (l liter ؊1 ) C 2 H 4 . The C 2 H 4 removal efficiencies achieved at 20, 10, and 5°C, respectively, were 99.0, 98.8, and 98.4%. This corresponded to C 2 H 4 levels of 0.022 to 0.032 ppm in the biofilter outlet air. At 2°C, the average C 2 H 4 removal efficiency dropped to 83%. The detailed temperature response of C 2 H 4 removal was tested under batch conditions by incubation of 1-g soil samples in a temperature gradient ranging from 0 to 29°C with increments of 1°C. ؊1 h ؊1 ). The Q 10 (i.e., the ratio of rates 10°C apart) for C 2 H 4 removal was 1.9 for the interval 0 to 10°C. In conclusion, the present results demonstrated microbial C 2 H 4 removal, which proceeded at 0 to 2°C and produced a moderately psychrophilic temperature response.The alkene C 2 H 4 (common name, ethylene; International Union of Pure and Applied Chemistry name, ethene) is unique among atmosphere-polluting hydrocarbons because it is a plant hormone. Biological effects of C 2 H 4 occur at concentrations below 0.1 ppm, which is generally more than 100-fold lower than those for other short-chain hydrocarbons (13).Air purification by biological filters (20) has been suggested as a method of C 2 H 4 removal from industrial waste gas and from horticultural storage facilities, where plant-produced C 2 H 4 may accumulate to levels that cause a premature ripening or senescence of the plant material (2,6,7,8,10,29,30). During storage and transport of horticultural produce, temperatures below 10°C are often obligatory; for instance, 4 to 6°C is optimal for 35% (and acceptable for 85%) of the transport volume of potted plants produced in Denmark (17). A prerequisite for successful biofiltration under such conditions is the existence of C 2 H 4 -degrading microorganisms with sufficient activity at low temperatures. So far, however, biocatalysts for efficient C 2 H 4 removal at temperatures below 10°C have not been described.In the present report, microbial C 2 H 4 removal at temperatures as low as 0 to 2°C was shown to occur indigenously in horticultural peat-soil under biofilter and batch conditions. MATERIALS AND METHODSAcclimated peat-soil. Horticultural peat-soil (Pindstrup Blend 2; Pindstrup Mosebrug, Pindstrup, Denmark) was acclimated to C 2 H 4 degradation by incubation of 800 g of soil (185 g [dry weight]) in a gastight glass bottle (5.5 liters) with a headspace concentration of ϳ500 ppm C 2 H 4 . Through a butyl rubber stopper, gas samples (0.5 ml) for C 2 H 4 analysis were withdrawn regularly during incubation at room temperature (ϳ20°C) for 28 days. After depletion of the C 2 H 4 , the bottle was purged with atmospheric air and new ...

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“…Ethene can be produced by diverse soil bacteria (Primrose, 1979) and is found in trace amounts in marine sediments (Vogel et al, 1982). It is also a desired end product of anaerobic reductive dechlorination of chlorinated ethenes by Dehalococcoides mccartyi (Löffler et al, 2013;Maymó-Gatell et al, 1997) with vinyl chloride (VC) as its immediate precursor (Cupples et al, 2003;He et al, 2003).…”

Section: Background: Anaerobic Mineralization Of Ethenementioning

confidence: 99%

Characterization of Microbes Capable of Using Vinyl Chloride and Ethene as Sole Carbon and Energy Sources by Anaerobic Oxidation

Freedman¹,

High²,

Reid³

et al. 2013

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The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to the Department of Defense, Executive Services and Communications Directorate (0704-0188). Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ORGANIZATION. 1. REPORT DATE (DD-MM-YYYY)2. REPORT TYPE 3. DATES COVERED (From -To) 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER Table 5.1 Summary of the effect of ethane concentration on the percent reduction ratio for microcosms in Site #8, Set I (M8-I), Site #9 (M9) and the enrichment from Site #9 (E9). Grey lines represent abiotic medium controls to account for gas loss during sampling Figure 6.4 16S rRNA gene tree of aerobic VC oxidizing isolates. Sequence HF26 (■) was obtained from the isolated microaerobic VC oxidizing organism, whereas HF13 and HF19 are sequences from the groundwater microcosm clone library. JS sequences are known VC or ethene oxidizers. Strain JS614, a Nocardioides spp., was used as an outgroup in rooting the tree (Coleman et al., 2003). AUTHOR(S) PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION REPORT NUMBER SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR/MONITOR'S ACRONYM(S) SPONSOR/MONITOR'S REPORT NUMBER(S)12 LIST OF TABLES LIST OF FIGURES

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Ethylene and Agriculture: the Role of the Microbe

Cited by 83 publications

References 82 publications

Nitrogen fixation and 15N2 calibration of the acetylene reduction assay in coastal marine sediments

Nitrogen fixation and 15N2 calibration of the acetylene reduction assay in coastal marine sediments

Ethylene Removal at Low Temperatures under Biofilter and Batch Conditions

Characterization of Microbes Capable of Using Vinyl Chloride and Ethene as Sole Carbon and Energy Sources by Anaerobic Oxidation

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