Abstract:
:The abundance of ultramicrobacteria (i.e., bacteria that pass through a 0.2μm filter) in a subtropical Alabama estuary was determined during a 1-year period. Although phenotypic and molecular characterization indicated that the population of ultramicrobacteria was dominated byVibrio species, species ofListonella andPseudomonas were also abundant. Vibrios occurred with the greatest frequency in waters whose salinities were less than 14‰, and were the most abundant species of the total ultramicrobacterial population year-round, whilePseudomonas species were absent or considerably reduced during the winter months. The total number of ultramicrobacteria showed an inverse relationship to total heterotrophic bacteria as measured by colony-forming units (CFU)/ml and to water quality as measured by several parameters. Analysis by generic composition indicated that both salinity and temperature significantly affected the distribution of these organisms. Laboratory studies revealed that strains of vibrios under starvation in both static and continuous-flow microcosms could be induced to form cells that passed through 0.2 and/or 0.4μm filters. Cells exposed to low nutrients became very small; some grew on both oligotrophic (5.5 mg carbon/liter) and eutrophic (5.5 g carbon/liter) media; and some few cells grew only on oligotrophic media. By passing selected vibrio strains on progressively diluted nutrient media, cells were also obtained that were small, that passed through 0.4μm filters, and that could grow in oligotrophic media. These results suggest that ultramicrobacteria in estuaries (at least some portion of the population) may be nutrientstarved or low nutrient-induced forms of certain heterotrophic, eutrophic, autochthonous, estuarine bacteria.
journal_name
Microb Ecoljournal_title
Microbial ecologyauthors
Hood MA,Macdonell MTdoi
10.1007/BF02013017subject
Has Abstractpub_date
1987-09-01 00:00:00pages
113-27issue
2eissn
0095-3628issn
1432-184Xjournal_volume
14pub_type
杂志文章abstract::The original article contained mistakes in the authors' affiliations. ...
journal_title:Microbial ecology
pub_type: 已发布勘误
doi:10.1007/s00248-020-01641-3
更新日期:2020-11-20 00:00:00
abstract::Facultative methylotrophic bacteria of the genus Methylobacterium are consistently found in association with plants, particularly in the phyllosphere. To gain a better understanding of the mechanisms underlying the dispersal and occurrence of Methylobacterium on plants, diverse strains were isolated, identified, and s...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-010-9725-3
更新日期:2010-08-01 00:00:00
abstract::Francisella tularensis is associated with water and waterways and infects many species of animals, insects, and protists. The mechanism Francisella utilizes to persist in the environment and in tick vectors is currently unknown. We have demonstrated for the first time that Francisella novicida, a model organism of F. ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-009-9586-9
更新日期:2010-04-01 00:00:00
abstract::The ability of intraperiplasmic and attack phase bdellovibrios to survive and/or grow under anoxic and microaerobic conditions was examined. Both halotolerant and nonhalotolerant bdellovibrio strains were examined. In all instances, the bdellovibrio strains were unable to grow under anoxic conditions, but were able to...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00170105
更新日期:1996-07-01 00:00:00
abstract::We studied the response of the sulfate-reducing prokaryote (SRP) communities to the experimental variation of salinity and tide in an outdoor mesocosm setup. Intact soil monoliths were collected at two areas of the Haringvliet lagoon (The Netherlands): one sampling location consisted of agricultural grassland, drained...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-009-9614-9
更新日期:2010-01-01 00:00:00
abstract::Eucalyptus plantations offer a cost-effective and renewable source of raw material. There is substantial interest in improving forestry production, especially through sustainable strategies such as the use of plant growth-promoting bacteria. However, little is known about Eucalyptus microbiology. In this study, the en...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-017-1014-y
更新日期:2018-01-01 00:00:00
abstract::Pseudomonas fluorescens strains are used in agriculture as plant growth-promoting rhizobacteria (PGPR). Nontarget effects of released organisms should be analyzed prior to their large-scale use, and methods should be available to sensitively detect possible changes in the environments the organism is released to. Acco...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-009-9489-9
更新日期:2009-05-01 00:00:00
abstract::The bacterial flora in the intestinal tract of goldfish (Carassius auratus) was investigated at different stages of fish development. The floras of the diets and the water and sediment of a culture pond were also analyzed. The total counts in the intestine ranged from 2.2 × 10(6)-2.1 × 10(8) cells g(-1) wet weight.Aer...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02012646
更新日期:1988-05-01 00:00:00
abstract::The oriental fruit fly, Bactrocera dorsalis (Hendel), is an important invasive agricultural insect pest with a wide host range, and has spread around the world over the last century. This evolutionary trait may have arisen primarily from interactions between B. dorsalis and other invertebrates that share the same ecol...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-020-01506-9
更新日期:2020-08-01 00:00:00
abstract::Recent and substantial yield losses of Styrian oil pumpkin (Cucurbita pepo L. subsp. pepo var. styriaca Greb.) are primarily caused by the ascomycetous fungus Didymella bryoniae but bacterial pathogens are frequently involved as well. The diversity of endophytic microbial communities from seeds (spermosphere), roots (...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-011-9942-4
更新日期:2012-02-01 00:00:00
abstract::Gut microbiota is the most complex bacterial community in the human body and its study may give important clues to the etiology of different intestinal diseases. Most studies carried out so far have used fecal samples, assuming that these samples have a similar distribution to the communities present throughout the co...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-010-9738-y
更新日期:2011-01-01 00:00:00
abstract::Mediterranean forests own distinct characteristics resulting from climate, soil, and vegetation that affect soil microbial communities' assembly and their associated functions. We initiated a multi-scalar analysis of environmental drivers of soil functioning to (1) identify pertinent factorial scales and (2) determine...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-020-01518-5
更新日期:2020-10-01 00:00:00
abstract::With this study, we present first data on the diversity of aerobic methanotrophic bacteria (MOB) in an Arctic permafrost active layer soil of the Lena Delta, Siberia. Applying denaturing gradient gel electrophoresis and cloning of 16S ribosomal ribonucleic acid (rRNA) and pmoA gene fragments of active layer samples, w...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-008-9411-x
更新日期:2009-01-01 00:00:00
abstract::The lower respiratory tract has been previously considered sterile in a healthy state, but advances in culture-independent techniques for microbial identification and characterization have revealed that the lung harbors a diverse microbiome. Although research on the lung microbiome is increasing and important question...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-017-1068-x
更新日期:2018-02-01 00:00:00
abstract::Dialysis bags were used to examine the impact of predation and viral lysis on prokaryotic community composition (PCC) over a 5-day experiment in the oligomesotrophic Lake Pavin (France). The impact of the different predator communities (protists and metazoans) of prokaryotes was estimated by water fractionation (<5 mi...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-005-5030-y
更新日期:2005-11-01 00:00:00
abstract::Understanding the role of microbiota as reproductive barriers or sources of adaptive novelty in the fundamental biological phenomenon of speciation is an exciting new challenge necessitating exploration of microbiota variation in wild interbreeding species. We focused on two interbreeding cyprinid species, Chondrostom...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-017-1077-9
更新日期:2018-04-01 00:00:00
abstract::To elucidate the individual and multiple roles of physiological bacterial groups involved in biogeochemical cycles of carbon, nitrogen, phosphorus and sulfur, the changes in the abundance of aerobic bacteria (heterotrophs, methane oxidizers, ammonia oxidizers, sulfur oxidizers, phosphate solubilizers, phosphate accumu...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-020-01575-w
更新日期:2021-02-01 00:00:00
abstract::Growth kinetics of 2Nitrobacter strains (N.w. and L) coexisting in the same soil are studied in batch and continuous culture. Monod's parameters are estimated numerically from experimental data in the case of the batch experiment, and from steady-state equations in the case of the chemostat. In both cases, the 2 strai...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02011417
更新日期:1984-06-01 00:00:00
abstract::The plasticity of rhizobial genomes is far greater than previously thought, with complex genomic recombination events that may be accelerated by the often stressful environmental conditions of the tropics. This study aimed at evaluating changes in soybean rhizobia due to adaptation to inhospitable environmental condit...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-006-9149-2
更新日期:2007-02-01 00:00:00
abstract::The fungal species involved in the decomposition of needle litter and their response to intraspecific genetic variation of trees are poorly known. First, we compared the needle decomposition and fungal decomposers underneath eight different Norway spruce clones in situ. This experiment revealed 60-70% loss of needle m...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-007-9326-y
更新日期:2008-07-01 00:00:00
abstract::Rhizoremediation has been suggested as an attractive bioremediation strategy for the effective breakdown of pollutants in soil. The presence of plant root exudates such as organic acids, sugars, and amino acids that may serve as carbon sources or biosynthetic building blocks and the limited bioavailability of iron may...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-002-2023-y
更新日期:2003-01-01 00:00:00
abstract::Methanotrophic bacteria are able to use methane (CH4) as a sole carbon and energy source. Photochemical oxidation of methane takes place in the stratosphere, whereas in the troposphere, this process is carried out by methanotrophic bacteria. On the one hand, it is known that the efficiency of biological CH4 oxidation ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-018-1248-3
更新日期:2019-04-01 00:00:00
abstract::Peatland testate amoebae (TA) are well-established bioindicators for depth to water table (DWT), but effects of hydrological changes on TA communities have never been tested experimentally. We tested this in a field experiment by placing Sphagnum carpets (15 cm diameter) collected in hummock, lawn and pool microsites ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-014-0367-8
更新日期:2014-05-01 00:00:00
abstract::Methods have been explored for detection of methylotrophs in natural samples, using environmental primers based on genes involved in the tetrahydromethanopterin (H4MPT)-linked C1 transfer pathway. The underlying hypotheses were that the H4MPT-linked pathway is an ancient methylotrophy pathway, based on gene divergence...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-004-0212-6
更新日期:2004-11-01 00:00:00
abstract::The persistence and interaction between newly isolated strains ofPseudomonas aeruginosa and resident bacteriophages indigenous to a freshwater environment was monitored over 45 days in lake water microcosms. The interaction between susceptible and resistant bacteria with pure phage (UT1) particles or a mixed phage pop...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02012098
更新日期:1990-03-01 00:00:00
abstract::Thymidine and leucine incorporation into macromolecules of soil bacteria extracted by homogenization-centrifugation were measured after size-fractionation of the bacterial suspension through different sized filters (1.0, 0.8, 0.6, 0.4 μm). The specific thymidine incorporation rate was highest for the unfiltered and 1....
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00182410
更新日期:1994-05-01 00:00:00
abstract::Social stress can dramatically influence the health of animals via communication between gut microbiota and the HPA system. However, this effect has been rarely investigated among different social ranked animals after chronic repeated social encounters. In this study, we evaluated changes and differences in microbiota...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-019-01462-z
更新日期:2020-05-01 00:00:00
abstract::The detrital food web is a major nexus of energy flow in nearly all aquatic ecosystems. Energy enters this nexus by microbial assimilation of detrital carbon. To link microbiological variables with ecosystem process, it is necessary to understand the regulatory hierarchy that controls the distribution of microbial bio...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00172569
更新日期:1995-09-01 00:00:00
abstract::Studies of predator-prey systems in both aquatic and terrestrial environments have shown that grazers structure the intraspecific diversity of prey species, given that the prey populations are phenotypically variable. Populations of phytoplankton have traditionally considered comprising only low intraspecific variatio...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-013-0327-8
更新日期:2014-01-01 00:00:00
abstract::A strain-specific immunofluorescence assay for enumeration of a marine denitrifying bacterium was developed and applied in the marine environment. The polyclonal antiserum for Pseudomonas stutzeri (ATCC 14405) did not react with other pseudomonads, other heterotrophs, or autotrophic nitrifying strains. The abundance o...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00171890
更新日期:1993-05-01 00:00:00