Abstract：
:Regeneration of nutrients in aquatic ecosystems may be affected by autolysis, bacterial degradation, and activities of phagotrophic organisms. To examine the relative importance of these processes, mineralization of carbon, nitrogen, and phosphorus was studied in a two-stage continuous culture system. In the first stage (production compartment), aChlorella sp. was grown either axenically or in the presence of bacteria under P-limited conditions. In the presence of bacteria, the biomass of algae decreased due to efficient competition for P by bacteria. In the second stage (remineralization compartment), which was kept continuously in the dark, the nutrients incorporated by the organisms in the first stage were remineralized only slightly (0-25%) irrespective of the presence or absence of bacteria. However, remineralization of all nutrients tested was strongly increased (60-80%) after addition of zooflagellates, which grazed on algae and bacteria. These observations suggest that a net regeneration of nutrients was provided by phagotrophic organisms, whereas nutrients were trapped rather than released by bacteria. It is concluded that nutrient cycling could probably not proceed at the high velocities observed in the field without the participation of phagotrophic organisms.
journal_name
Microb Ecoljournal_title
Microbial ecologyauthors
Güde Hdoi
10.1007/BF02010599subject
Has Abstractpub_date
1985-09-01 00:00:00pages
193-204issue
3eissn
0095-3628issn
1432-184Xjournal_volume
11pub_type
杂志文章abstract：:The anaerobic degradation ofp-cresol was studied with one sediment source under three reducing conditions-denitrifying, sulfidogenic, and methanogenic. Loss ofp-cresol (1 mM) in all the anaerobic systems took initially 3 to 4 weeks. In acclimated culturesp-cresol was degraded in less than a week.p-Cresol was completel...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02543873
更新日期：1990-12-01 00:00:00
abstract：:Menez Gwen, Lucky Strike and Rainbow are the three most visited and well-known deep-sea hydrothermal vent fields in the Azores region, located in the Mid-Atlantic Ridge. Their distinct geological and ecological features allow them to support a diversity of vent communities, which are largely dependent on Bacteria and ...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-017-0943-9
更新日期：2017-08-01 00:00:00
abstract：:Red clay was previously used to enhance bioremediation of diesel-contaminated soil. It was speculated that the enhanced degradation of diesel was due to increased bacterial growth. In this study, we selected Acinetobacter oleivorans DR1, a soil-borne degrader of diesel and alkanes, as a model bacterium and performed t...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-015-0624-5
更新日期：2015-11-01 00:00:00
abstract：:Diel changes in the specific growth rates of natural bacterial communities as a whole and of different groups within the communities were followed over 2 days during July 1982, in stratified waters in the vicinity of a shallow sea tidal mixing front in the Irish Sea. Waters well above (4 m) and below (60 m) the thermo...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02011170
更新日期：1986-09-01 00:00:00
abstract：:The digestive tract of animals harbors microbiota important for the host's fitness and performance. The interaction between digestive tract bacteria and soil animal hosts is still poorly explored despite the importance of soil fauna for ecosystem processes. In this study, we investigated the interactions between the b...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-020-01656-w
更新日期：2021-01-09 00:00:00
abstract：:Alterations in microbial community composition, biomass, and function in the Florida Everglades impacted by cultural eutrophication reflect a new physicochemical environment associated with monotypic stands of Typha domingensis. Phospholipid fatty acid (PLFA) biomarkers were used to quantify microbial responses in det...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-012-0090-2
更新日期：2012-11-01 00:00:00
abstract：:Actinobacteria are widely distributed in the marine environment. To date, few studies have been performed to explore the coral-associated Actinobacteria, and little is known about the diversity of coral-associated Actinobacteria. In this study, the actinobacterial diversity associated with one soft coral Alcyonium gra...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-013-0205-4
更新日期：2013-07-01 00:00:00
abstract：:The bacterial community structure of the rhizosphere and non-rhizosphere soil of Pinus patula, found in the Nilgiris region of Western Ghats, was studied by constructing 16S rRNA gene clone libraries. In the rhizosphere and non-rhizosphere soil clone libraries constructed, 13 and 15 bacterial phyla were identified, re...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-012-0167-y
更新日期：2013-07-01 00:00:00
abstract：:In 1991 and 1992, the Latin American epidemic strain of Vibrio cholerae O1 was isolated from ballast water, bilge water, and sewage taken from cargo ships docked in Mobile Bay, Alabama. The findings raised questions regarding the organism's ability to survive long-term aboard ships and to withstand the exchange of bal...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF00167862
更新日期：1996-03-01 00:00:00
abstract：:Biological soil crusts (BSCs) are communities of cryptogamic organisms, occurring in arid and semiarid regions all over the world. Based on both morphological identification and genetic analyses, we established a first cyanobacterial inventory using the biphasic approach for BSCs within two major biomes of southern Af...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-013-0301-5
更新日期：2014-02-01 00:00:00
abstract：:Arsenic (As) and antimony (Sb) are both toxic metalloids that are of primary concern for human health. Mining activity has introduced elevated levels of arsenic and antimony into the rivers and has increased the risks of drinking water contamination in China. Due to their mobility, the majority of the metalloids origi...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-019-01327-5
更新日期：2019-10-01 00:00:00
abstract：:Assimilatory nitrate reductase gene fragments were isolated from epiphytes and plankton associated with seagrass blades collected from Tampa Bay, Florida, USA. Nitrate reductase genes from diatoms (NR) and heterotrophic bacteria (nasA) were amplified by polymerase chain reaction (PCR) using two sets of degenerate prim...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-006-9175-0
更新日期：2007-11-01 00:00:00
abstract：:Phyllosphere bacteria on ornamental plants were characterized based on their diversity and activity towards the removal of polycyclic aromatic hydrocarbons (PAHs), the major air pollutants in urban area. The amounts of PAH-degrading bacteria were about 1-10% of the total heterotrophic phyllosphere populations and cons...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-009-9631-8
更新日期：2010-02-01 00:00:00
abstract：:Carnivorous pitcher plants Sarracenia purpurea host diverse eukaryotic and bacterial communities which aid in insect prey digestion, but little is known about the functional processes mediated by the microbial communities. This study aimed to connect pitcher community diversity with functional nutrient transformation ...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-018-1187-z
更新日期：2018-11-01 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：:The genetic diversity of a collection of 336 spore-forming isolates recovered from five salt-saturated brines and soils (Chott and Sebkhas) mainly located in the hyper-arid regions of the southern Tunisian Sahara has been assessed. Requirements and abilities for growth at a wide range of salinities\ showed that 44.3 %...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-013-0274-4
更新日期：2013-11-01 00:00:00
abstract：:Mesophilic heterotrophic, aerobic or facultatively anaerobic bacteria that grow on yeast tryptone glucose extract agar were isolated from the surface of olive leaves of 3 or 4 different ages in January, April, July, and October from 1984 to 1989. Unweighted average linkage cluster analysis on either the Jaccard coeffi...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02539143
更新日期：1991-12-01 00:00:00
abstract：:Drying and rewetting is a frequent physiological stress for soil microbial communities; a stress that is predicted to grow more influential with future climate change. We investigated the effect of repeated drying-rewetting cycles on bacterial (leucine incorporation) and fungal (acetate in ergosterol incorporation) gr...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-010-9723-5
更新日期：2010-08-01 00:00:00
abstract：:Scanning electron microscopy and fluorescence microscopy after scanning with DAPI indicated that the skin mucus of the cornetfish contained large numbers of bacteria, 4 × 10(8) per cm3. However, viable counts yielded only 2 × 104 per cm(3). Twelve bacterial strains were isolated directly from the mucus and another ten...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF00171971
更新日期：1992-07-01 00:00:00
abstract：:A new membrane filter technique for field use was developed for the enumeration of either aerobic or anaerobic, autotrophic, sulfur-oxidizing bacteria in waters and soils. Immediately after collection, samples were filtered through sulfur-coated filters and incubated in selective media. Acidification or gas evolution ...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02010741
更新日期：1977-12-01 00:00:00
abstract：:Biological soil crust is composed of lichens, cyanobacteria, green algae, mosses, and fungi. Although crusts are a dominant source of nitrogen (N) in arid ecosystems, this study is among the first to demonstrate their contribution to N availability in xeric temperate habitats. The study site is located in Lucas County...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-005-0121-3
更新日期：2006-02-01 00:00:00
abstract：:The MHV-68 (designed as Murid herpesvirus 4 (MuHV 4) strain 68) isolated from two rodents, Myodes glareolus and Apodemus flavicollis, is considered as a natural pathogen of free-living murid rodents. Recently, the detection of MHV antibodies in the blood of animals living in the same biotope as MHV-infected mice has s...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-011-9907-7
更新日期：2011-11-01 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：:Genetically engineeredErwinia carotovora persisted significantly longer in thermally perturbed microcosms (35 days) than in nonstressed microcosms (5 days). Decreased pressure of competitors and predators and increased nutrient availability were examined as the most probable reasons for greater vulnerability of pertur...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02543863
更新日期：1990-12-01 00:00:00
abstract：:Microbial communities within oxygen minimum zones (OMZs) are crucial drivers of marine biogeochemical cycles; however, we still lack an understanding of how these communities are distributed across an OMZ. We explored vertical (from 5 to 500 m depth) and horizontal (coast to open ocean) distribution of bacterioplankto...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-020-01508-7
更新日期：2020-10-01 00:00:00
abstract：:Yeast communities of decayingStenocereus gummosus were analyzed for spatial, temporal, and physiological characteristics. Analysis of random samples within plants, between plants, and between localities shows that the species proportions of the yeast community are relatively constant within plants and between localiti...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02011463
更新日期：1982-06-01 00:00:00
abstract：:In this report, four Bacillus strains were tested for effects on plant fitness and disease protection of oilseed rape (Brassica napus). The strains belonged to newly discovered plant-associated Bacillus amyloliquefaciens and a recently proposed species, Bacillus endophyticus. The fungal pathogens tested represented di...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-006-9181-2
更新日期：2007-07-01 00:00:00
abstract：:By using substrate molecules of varying degrees of surface activity, we were able to measure some features of bacterial activity in the surface microlayers (SM) and in the subsurface (bulk) water. The fraction of active cells was determined by a combined microautoradiography-epifluorescence (ME) method. Measurements w...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02019021
更新日期：1983-12-01 00:00:00
abstract：:Microorganisms play a crucial role in lignocellulosic degradation. Many enriched microbial communities have demonstrated to reach functional and structural stability with effective degrading capacities of industrial interest. These microbial communities are typically composed by only few dominant species and a high nu...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-019-01403-w
更新日期：2020-02-01 00:00:00
abstract：:Aerobic methanotrophs present in wetlands can serve as a methane filter and thereby significantly reduce methane emissions. Sanjiang wetland is a major methane source and the second largest wetland in China, yet little is known about the characteristics of aerobic methanotrophs in this region. In the present study, we...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-014-0506-2
更新日期：2015-04-01 00:00:00
