Serratia nematodiphila sp. nov., associated symbiotically with the entomopathogenic nematode Heterorhabditidoides chongmingensis (Rhabditida: Rhabditidae)

Zhang, Chong-Xing; Yang, Shou-Yun; Xu, Ming-Xu; Sun, Jiazhi; Liu, Huan; Liu, Jing-Rui; Liu, Hui; Kan, Fei; Sun, Jing; Lai, Ren; Zhang, Keyun

doi:10.1099/ijs.0.65718-0

Cited by 39 publications

(32 citation statements)

References 46 publications

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“…24, 2011 SERRATIA INFECTIONS 761 and DNase production, and it has a lower mol% GϩC (49 to 52% for S. fonticola, compared to 52 to 60% for other members of the genus Serratia) (159) (36). In 2009, a red-pigmented organism was isolated from the intestine of Heterorhabditidoides chongmingensis, an entomopathogenic nematode (425). This isolate, named S. nematodiphila, was also fluorescent (425).…”

Section: Taxonomy Of Other Serratia Speciesmentioning

confidence: 99%

Serratia Infections: from Military Experiments to Current Practice

2011

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SUMMARY Serratia species, in particular Serratia marcescens , are significant human pathogens. S. marcescens has a long and interesting taxonomic, medical experimentation, military experimentation, and human clinical infection history. The organisms in this genus, particularly S. marcescens , were long thought to be nonpathogenic. Because S. marcescens was thought to be a nonpathogen and is usually red pigmented, the U.S. military conducted experiments that attempted to ascertain the spread of this organism released over large areas. In the process, members of both the public and the military were exposed to S. marcescens , and this was uncovered by the press in the 1970s, leading to U.S. congressional hearings. S. marcescens was found to be a certain human pathogen by the mid-1960s. S. marcescens and S. liquefaciens have been isolated as causative agents of numerous outbreaks and opportunistic infections, and the association of these organisms with point sources such as medical devices and various solutions given to hospitalized patients is striking. Serratia species appear to be common environmental organisms, and this helps to explain the large number of nosocomial infections due to these bacteria. Since many nosocomial infections are caused by multiply antibiotic-resistant strains of S. marcescens , this increases the danger to hospitalized patients, and hospital personnel should be vigilant in preventing nosocomial outbreaks due to this organism. S. marcescens , and probably other species in the genus, carries several antibiotic resistance determinants and is also capable of acquiring resistance genes. S. marcescens and S. liquefaciens are usually identified well in the clinical laboratory, but the other species are rare enough that laboratory technologists may not recognize them. 16S rRNA gene sequencing may enable better identification of some of the less common Serratia species.

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Section: Taxonomy Of Other Serratia Speciesmentioning

confidence: 99%

Serratia Infections: from Military Experiments to Current Practice

2011

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“…The antibiotic susceptibility of the isolates WPRA3, SM11-3J and SC-G18 were similar to other non-pathogenic Serratia species such as S. marcescens subsp. sakuensis JCM 11315 [10], but they were more resistant to antibiotics than S. nemathodiphila DZ0503SBS1 [11], although in comparison with pathogenic Serratia species such as S. marcescens strain 08 [12] and S. marcescens [13] they were more susceptible to antibiotics. Table 1 shows the antibiotic susceptibility of isolates WPRA3, SM11-3J and SC-G18 in comparison with other Serratia species.…”

Section: Antibiotic Susceptibilitymentioning

confidence: 99%

“…Isolates WPRA3, SM11-3j and SC-G18 were unable to grow in metal-agar media at any concentration = S. marcescens subsp. sakuensis JCM 11315T [11]; F 6 = S marcescens strain 08 [13]; G 7 = S. marcescens [14]; R = resistance; S = susceptible; NA = not available. CdSO 4 --- [7].…”

Section: Heavy Metal Resistancementioning

confidence: 99%

Heavy-Metal Tolerance and Antibiotic Susceptibility of Red Pigmented Bacteria Isolated from Marine Environment

Jafarzade¹,

Mohamad²,

Usup³

et al. 2012

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This study was undertaken to determine heavy metal resistance and antibiotic susceptibility of three non-pathogenic red pigmented bacteria namely WPRA3, SM11-3j and SC-G18, isolated from marine environments of Malaysia. The bacteria isolates were identified by 16S rRNA sequencing and by biochemical and morphological tests. The 16S rRNA gene sequences of all isolates showed ≥96% similarity to Serratia spp. Antibiotic susceptibility test of isolates was assayed according to the Kirby-Bauer disc diffusion method. All isolates were highly resistant to beta-lactam antibiotics, but were susceptible to quinolone antibiotics. . Isolates WPRA3 and SM11-3j showed higher multiple tolerances to heavy metals. The results obtained indicate that bacteria from marine environments of Malaysia present interesting metabolic activities, which should be studied and explored for potential biotechnological applications.

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“…Recently, Galleria trap experiments and direct isolation methods have, however, revealed nematodes other than members of the Steinernematidae and Heterorhabditis (Young-Keun et al, 2007;Zhang et al, 2008). Moreover, Zhang and colleagues (Zhang et al, 2009) reported a new species of Serratia that they found symbiotically associated with a new entomopathogenic nematode genus discovered earlier (Zhang et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

An entomopathogenic Caenorhabditis briggsae

Abebe

Jumba

Bonner

et al. 2010

Journal of Experimental Biology

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SUMMARY Caenorhabditis elegans is a premier model organism upon which considerable knowledge of basic cell and developmental biology has been built. Yet, as is true for many traditional model systems, we have limited knowledge of the ecological context in which these systems evolved, severely limiting our understanding of gene function. A better grasp of the ecology of model systems would help us immensely in understanding the functionality of genes and evolution of genomes in an environmental context. Consequently, there are ongoing efforts to uncover natural populations of this model system globally. Here, we describe the discovery of a Caenorhabditis briggsae strain and its bacterial associate (Serratia sp.) that form an entomopathogenic complex in the wild. Laboratory experiments confirm that this nematode and its natural bacterial associate can penetrate, kill and reproduce in an insect host and that the bacterial associate can induce this insect pathogenic life cycle in other Caenorhabditis species, including C. elegans. Our findings suggest that this life history may be widespread in nature and critical to the understanding of the biology of this important model organism. Caenorhabditis–insect interaction could be a key factor in our quest for a better grasp of gene functionality in this important model species. The discovered association, consequently, would provide an ecological framework for functional genomics of Caenorhabditis.

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Serratia nematodiphila sp. nov., associated symbiotically with the entomopathogenic nematode Heterorhabditidoides chongmingensis (Rhabditida: Rhabditidae)

Cited by 39 publications

References 46 publications

Serratia Infections: from Military Experiments to Current Practice

Serratia Infections: from Military Experiments to Current Practice

Heavy-Metal Tolerance and Antibiotic Susceptibility of Red Pigmented Bacteria Isolated from Marine Environment

An entomopathogenic Caenorhabditis briggsae

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