Abstract:
:Discula umbrinella, a fungal endophyte of oak species, colonizes and reproduces on leaves of Quercus alba and Q. rubra in forest ecosystems. Twenty-nine isolates collected from leaves of both oak species (16 from Q. alba and 13 from Q. rubra) were assayed for oak species preference and genetic variation based on primer-specific polymerase chain reactions for the intergenic spacer region (IGS) of ribosomal DNA. DNA sequencing of the polymerase chain reaction products revealed a 10-bp insertion (237-247 bp) at the 3' end of the IGS region present in nine isolates and absent in 20 of the isolates. Phylogenetic analysis of the IGS region using the neighbor-joining method identified IGS groups (groups I-V) based on single nucleotide sequence differences. Host selectivity and geographic origin of isolates were correlated in some instances with the IGS groups. Isolates within each IGS group were further analyzed for nucleotide polymorphisms to confirm genotype identity and genotype diversity. Ten different genotypes (Va-Vj) were identified among the isolates analyzed. Genotype diversity was greatest in IGS groups I, IV, and V. Seventy percent of the genotypes (Vc, Vd, Ve, Vf, Vg,Vi, and Vj) contained isolates with single tree species preferences.
journal_name
Microb Ecoljournal_title
Microbial ecologyauthors
Cohen SDdoi
10.1007/s00248-006-9073-5subject
Has Abstractpub_date
2006-10-01 00:00:00pages
463-9issue
3eissn
0095-3628issn
1432-184Xjournal_volume
52pub_type
杂志文章abstract::Selective isolation, molecular identification and AFLP were used to investigate the distribution of the various species of endophytic and epiphytic Trichoderma associated with banana roots and to compare and contrast their genetic structure. Three specific groups of Trichoderma were observed in the roots of banana. Gr...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-010-9770-y
更新日期:2011-04-01 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::Commensal bacteria influence many aspects of an organism's behaviour. However, studies on the influence of commensal bacteria in insect mate-selection are scarce. Here, we present empirical evidence that commensal bacteria mediate mate-selection in the Oriental fruit fly, Bactrocera dorsalis. Male flies were attracted...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-016-0819-4
更新日期:2016-10-01 00:00:00
abstract::Soil contamination with heavy metals is a widespread problem, especially prominent on grounds lying in the vicinity of mines, smelters, and other industrial facilities. Many such areas are located in Southern Poland; they are polluted mainly with Pb, Zn, Cd, or Cu, and locally also with Cr. As for now, little is known...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-013-0344-7
更新日期:2014-04-01 00:00:00
abstract::High specific activity(14)C-labeled glucose, succinate, acetate, salicylate, and amino acids were used to examine carbon metabolism by the microbial community of Pahokee muck (aLithic medisaprist), a drained, cultivated soil of the Florida Everglades. Variations in carbon oxidation were observed from the end of the we...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02020340
更新日期:1980-12-01 00:00:00
abstract::Arkashin Schurf (Arkashin) and Zavarzin Spring (Zavarzin), two active thermal pools in the Uzon Caldera, Kamchatka, Russia, were studied for geochemical and microbiological characterization. Arkashin, the smaller of the two pools, had broader temperature and pH ranges, and the sediments had higher concentrations of to...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-011-9979-4
更新日期:2012-04-01 00:00:00
abstract::In search for microbiological indicators of coral health and coral diseases, community profiles of coral-associated epizoic prokaryotes were investigated because of their dual potential as a source of coral pathogens and their antagonists. In pairwise samples of visually healthy and diseased coral specimens from Bolin...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-008-9400-0
更新日期:2009-01-01 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::Cell growth and division of the ciliateTetrahymena corlissi were examined upon refeeding after prolonged starvation of up to 12 days. Division did not automatically occur when a certain critical cell size was reached. Rather, it varied both with the nutritional history of the cell and the nutrient conditions in which ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02011248
更新日期:1987-03-01 00:00:00
abstract::> Abstract To determine if spatial variation in soluble carbon sources along the root coincides with different trophic groups of bacteria, copiotrophic and oligotrophic bacteria were enumerated from bulk soil and rhizosphere samples at 2 cm intervals along wheat roots 2, 3, and 4 weeks after planting. There was a mode...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s002489900136
更新日期:1999-02-01 00:00:00
abstract::Soil microbial communities follow distinct seasonal cycles which result in drastic changes in processes involving soil nutrient availability. The biomass of fungi has been reported to be highest during winter, but is fungal growth really occurring in frozen soil? And what is the effect of plant cover on biomass format...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-011-0001-y
更新日期:2012-07-01 00:00:00
abstract::Bacteria attached to rock and glass surfaces were studied in streams draining a whole-tree harvested watershed (WTH) and a nonharvested (CONTROL) watershed in the Hubbard Brook Experimental Forest, New Hampshire, U.S.A. Seasonal trends in numbers of cells/cm(2), mean cell volume, cell size-frequency distribution, and ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02018912
更新日期:1988-09-01 00:00:00
abstract::With the recent advancement of next-generation sequencing methods, there has been an increase in studies on identification of vineyard microbiota, winery-associated microbiota, and microbiota in wine fermentation. However, there have been few studies investigating the fungal microbiota of table grapes which present di...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-021-01698-8
更新日期:2021-01-29 00:00:00
abstract::Genetic diversification through the emergence of variants is one of the known mechanisms enabling the adaptation of bacterial communities. We focused in this work on the adaptation of the model strain Pseudomonas putida KT2440 in association with another P. putida strain (PCL1480) recently isolated from soil to invest...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-019-01470-z
更新日期:2020-07-01 00:00:00
abstract::The occurrence and distribution of Azorhizobium and Rhizobium strains that induce stem nodulation of Sesbania rostrata were determined in four vegetation zones in Senegal. Based on tests with 16 Rhizobium and 10 Azorhizobium strains nodulating S. rostrata, a method was devised to distinguish among the strains. In all ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00217424
更新日期:1995-01-01 00:00:00
abstract::Faecal contamination poses health risks for the recreational users of urban estuaries. However, our understanding of the potential pathogenicity of faecal microbes in these environments is limited. To this end, a study was conducted to understand the spatial and seasonal distribution of Salmonella in water and sedimen...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-019-01419-2
更新日期:2020-02-01 00:00:00
abstract::The influence of bacterial communities on the formation of carbonate deposits such as moonmilk was investigated in Altamira Cave (Spain). The study focuses on the relationship between the bacterial communities at moonmilk deposits and those forming white colonizations, which develop sporadically throughout the cave. U...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-010-9731-5
更新日期:2011-01-01 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::Alcohol production from corn is gaining importance in Ontario, Canada, and elsewhere. A major cost of corn production is the cost of chemical fertilizers and these continue to increase in price. The competitiveness of alcohol with fossil fuels depends on access to low-cost corn that allows growers to earn a sustainabl...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-006-9039-7
更新日期:2006-04-01 00:00:00
abstract::Wild Japanese macaques (Macaca fuscata Blyth) living in the highland and lowland areas of Yakushima are known to have different diets, with highland individuals consuming more leaves. We aim to clarify whether and how these differences in diet are also reflected by gut microbial composition and fermentation ability. T...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-020-01515-8
更新日期:2020-08-01 00:00:00
abstract::Hydroelectric reservoirs are highly regulated ecosystems, where the understanding on bacterioplankton has been very limited so far. In view of significant changes in river hydrological conditions by dam construction, hydraulic load (i.e., the ratio of mean water depth to water retention time) was assumed to control ba...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-020-01523-8
更新日期:2020-10-01 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::Airborne bacteria are important biological components of bioaerosol and play an important role in ecosystem. Bacteria at a high concentration in the atmosphere can result in biological air pollution and all kinds of diseases. In this study, a systematical survey on the culturable airborne bacteria was carried out for ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-007-9216-3
更新日期:2007-10-01 00:00:00
abstract::A study was conducted to determine the diversity of 2-, 3-, and 4-chlorobenzoate (CB) degraders in two pristine soils with similar physical and chemical characteristics. Surface soils were collected from forested sites and amended with 500 microg of 2-, 3-, or 4-CB g(-1) soil. The CB levels and degrader numbers were m...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-003-1048-1
更新日期:2004-07-01 00:00:00
abstract::To date, there is a limited understanding of the role of the airway microbiome in the early life development of respiratory diseases such as asthma, partly due to a lack of simple and minimally invasive sample collection methods. In order to characterize the baseline microbiome of the upper respiratory tract (URT) in ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-015-0663-y
更新日期:2016-01-01 00:00:00
abstract::The depth-dependent, seasonal, and diel variability of virus numbers, dissolved DNA (D-DNA), and other microbial parameters was investigated in the northern Adriatic Sea. During periods of water stratification, we found higher virus abundances and virus/bacterium ratios (VBRs) as well as a larger variability of D-DNA ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00184511
更新日期:1995-07-01 00:00:00
abstract::The community structure of methanogenic Archaea on anoxically incubated rice roots was investigated by amplification, sequencing, and phylogenetic analysis of 16S rRNA and methyl-coenzyme M reductase (mcrA) genes. Both genes demonstrated the presence of Methanomicrobiaceae, Methanobacteriaceae, Methanosarcinaceae, Met...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-003-2014-7
更新日期:2004-01-01 00:00:00
abstract::This study is aimed to assess the formation of photosynthetic biofilms on and within different natural stone materials, and to analyse their biogeophysical and biogeochemical deterioration potential. This was performed by means of artificial colonisation under laboratory conditions during 3 months. Monitoring of micro...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-010-9666-x
更新日期:2010-07-01 00:00:00
abstract::The hypothesis tested in this present study was that the ectomycorrhizosphere effect on the bacterial community was not root-growth-dependent. The impacts of ectomycorrhizal infection (Pisolithus albus COI007) and a chemical fertilization to reproduce the fungal effect on root growth were examined on (1) the structure...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-004-0229-x
更新日期:2005-10-01 00:00:00
abstract::The halophilic, hydrocarbonoclastic bacteria and archaea inhabiting two hypersaline coastal areas in Kuwait, one in the north and the other in the south, were counted and characterized. Environmental parameters in both areas were similar, with the exception of the soil organic carbon content, which was in the north hi...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-014-0386-5
更新日期:2014-05-01 00:00:00