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 thermocline were enclosed in dialysis bags and incubated in situ. The results show that there were periods of altered growth rates of the whole bacterial community and synchronous cell division of morphological groups. An increase in mean cell volume within both 4 and 60 m communities preceded an increase in specific growth rates, with a resultant decrease in the mean cell volume. Above the thermocline the whole bacterial community, as well as the rod and coccoid forms, doubled in number once a day. The doubling time of the whole bacterial community at 60 m was 2 days and slower than that at 4 m. This was due to a slower doubling time (3 days) for the coccoid forms. Rod forms at the two depths had a similar doubling time (1 day). The time of day when maximum division rate occurred was also different in the two water masses. At 4 m more coccoid forms divided during the night, whereas at 60 m more divided during the day. Conversely, at 4 m more rod forms divided during the day, whereas at 60 m more divided at night.These data indicate that the bacterial community and members of the community may be adapted to exploit the diurnal rhythms of dissolved organic carbon (DOC) release by other organisms and that portions of the bacterial community may therefore be more active at certain times of the day. The diurnal growth of the bacterial community may thus vary between different water masses and largely reflects the differences in the chemical and biological characteristics of the two water masses investigated.
journal_name
Microb Ecoljournal_title
Microbial ecologyauthors
Turley C,Lochte Kdoi
10.1007/BF02011170subject
Has Abstractpub_date
1986-09-01 00:00:00pages
271-82issue
3eissn
0095-3628issn
1432-184Xjournal_volume
12pub_type
杂志文章abstract::Several Mesorhizobium species are able to induce effective nodules in chickpea, one of the most important legumes worldwide. Our aims were to examine the biogeography of chickpea rhizobia, to search for a predominant species, and to identify the most efficient microsymbiont, considering Portugal as a case study. One h...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-009-9536-6
更新日期:2009-11-01 00:00:00
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::Septate endophytes proliferating in the roots of grasslands' plants shed doubts on the importance of arbuscular mycorrhizal (AM) symbioses in dry soils. The functionality and diversity of the AM symbioses formed in four replicates of three adjacent plant communities (agricultural, native, and restored) in Grasslands N...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-009-9629-2
更新日期:2010-05-01 00:00:00
abstract::Maize root colonization and phosphate solubilizing activity of the fungus Penicillium rugulosum were assessed in a greenhouse trial using soil-plant microcosms. The bacterial gene hph conferring resistance to hygromicin B was introduced by electroporation in the wild-type strain IR-94MF1 of P. rugulosum and one transf...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-002-1001-8
更新日期:2002-07-01 00:00:00
abstract::Sixty-two bacteriophages were isolated on eight indigenous bacteria from a Pacific Ocean station spanning 887-m vertical depth, on two occasions between 1999 and 2000. On the basis of 16S rRNA sequences, six hosts were tentatively identified to be in the genus Vibrio and the other two were closely related to Altermona...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-002-1059-3
更新日期:2003-05-01 00:00:00
abstract::Chilas and Hunza areas, located in the Main Mantle Thrust and Main Karakoram Thrust of the Himalayas, host a range of geochemically diverse hot springs. This Himalayan geothermal region encompassed hot springs ranging in temperature from 60 to 95 °C, in pH from 6.2 to 9.4, and in mineralogy from bicarbonates (Tato Fie...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-017-0930-1
更新日期:2017-07-01 00:00:00
abstract::The relative amounts of hyphal inoculum in forest soils may determine the capacity for fungi to compete with and replace early colonizers of wood in ground contact. Our aim in this study was to test the flexibility of priority effects (colonization timing) by varying the timing of inoculum introduction (i.e., precolon...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-015-0588-5
更新日期:2015-05-01 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::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::We investigated if the plant growth promoting fungus Trichoderma harzianum Rifai 1295-22 (also known as "T22") could be used to enhance the establishment and growth of crack willow (Salix fragilis) in a soil containing no organic or metal pollutants and in a metal-contaminated soil by comparing this fungus with nonino...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-006-9203-0
更新日期:2007-08-01 00:00:00
abstract::Network analysis was used to show changes in network attributes by analyzing the relations among the main soil microbial groups in a potted tomato soil inoculated with arbuscular mycorrhizal fungus, treated with low doses of Mentha spicata essential oil, or both, and then exposed to tenfold higher oil addition (stress...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-019-01367-x
更新日期:2019-11-01 00:00:00
abstract::Diverse microbial communities living in subsurface coal seams are responsible for important geochemical processes including the movement of carbon between the geosphere, biosphere and atmosphere. Microbial conversion of the organic matter in coal to methane involves a complex assemblage of bacteria and archaea working...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-019-01471-y
更新日期:2020-07-01 00:00:00
abstract::Understanding the rules that govern the successions of gut microbiota is prerequisite for testing general ecological theories and sustaining a desirable microbiota. However, the ignorance of microeukaryotes raises the question of whether gut microeukaryotes are assembled according to the same rules as bacteria. We tra...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-020-01533-6
更新日期:2020-11-01 00:00:00
abstract::Actinobacteria are major producers of secondary metabolites; however, it is unclear how they are distributed in the environment. DNA was extracted from forest, pasture and cultivated soils, street sediments (dust and material in place), and sediments affected by animal activity (e.g. guano, vermicompost) and character...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-010-9752-0
更新日期:2011-02-01 00:00:00
abstract::Owing to their ubiquitous presence and ability to act as primary or opportunistic pathogens, Vibrio species greatly contribute to the diversity and evolution of marine ecosystems. This study was aimed at unveiling the cellular strategies enabling the marine gammaproteobacterium Vibrio harveyi to adapt and persist in n...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-015-0614-7
更新日期:2015-10-01 00:00:00
abstract::The impact of the oxygen supply rate (OSR) on the metabolic activity and on the composition of hexadecane-degrading bacterial communities in a quasi-anoxic milieu (nominal DOT = 0%) was studied in continuous cultures containing intertidal sediment. The dilution rate was kept constant at 0.035 h-1. The OSR was stepwise...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s002480000082
更新日期:2001-07-01 00:00:00
abstract::A growing body of evidence suggests that contaminated environments may harbor a greater proportion of antibiotic-resistant microorganisms than unpolluted reference sites. Here, we report the screening of 427 Escherichia coli strains isolated from 11 locations on nine streams draining the US Department of Energy's Sava...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-015-0678-4
更新日期:2016-11-01 00:00:00
abstract::The high plasticity of root morphology, physiology, and function influences root-associated microbiomes. However, the variation in root-associated microbiome diversity and structures in response to root diameter at different root depths remains poorly understood. Here, we selected black locust (Robinia pseudoacacia L....
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-020-01678-4
更新日期:2021-01-15 00:00:00
abstract::Endophytes are microbial symbionts living inside plants and have been extensively researched in recent decades for their functions associated with plant responses to environmental stress. We conducted a meta-analysis of endophyte effects on host plants' growth and fitness in response to three abiotic stress factors: d...
journal_title:Microbial ecology
pub_type: 杂志文章,meta分析
doi:10.1007/s00248-017-1054-3
更新日期:2018-02-01 00:00:00
abstract::Little is known of the responsiveness of soil bacterial community structure to disturbance. In this study, we subjected a soil microcosm to physical disturbance, sterilizing 90 % of the soil volume each time, at a range of frequencies. We analysed the bacterial community structure using 454 pyrosequencing of the 16S r...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-013-0237-9
更新日期:2013-07-01 00:00:00
abstract::Seven known species of rumen ciliates and mixedEntodinium spp. showed association with plant particles in rumen fluid in vitro. Association was greater with fresh particles than with hay, and substantially decreased when the water-soluble components of the particles were removed, suggesting that the water-soluble comp...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02015109
更新日期:1985-03-01 00:00:00
abstract::Many sponges host abundant and active microbial communities that may play a role in the uptake of dissolved organic matter (DOM) by the sponge holobiont, although the mechanism of DOM uptake and metabolism is uncertain. Bulk and compound-specific isotopic analysis of whole sponge, isolated sponge cells, and isolated s...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-019-01410-x
更新日期:2020-02-01 00:00:00
abstract::Bacillus thuringiensis subsp. israelensis (Bti) is a soil-borne bacterium affiliated to the Bacillus cereus group (Bcg) and has been used in biocontrol products against nematoceran larvae for several decades. However, knowledge is limited on whether long-term Bti application can affect the structure of indigenous comm...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-017-1004-0
更新日期:2017-11-01 00:00:00
abstract::To study the fate of Pseudomonas putida DSM 3931 in an aquatic environment, cultures of the strain were released into lake water mesocosms. P. putida, bearing the TOL-plasmid, was released as a representative xenobiotic-degrading microorganism. The release was carried out in mesocosms with unamended lake water and in ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00165812
更新日期:1994-01-01 00:00:00
abstract::Ochreous sludge deposited in the course of aeration of ground water contained an assortment of bacterial forms and structures which were investigated by light microscopy, scanning electron microscopy, and transmission electron microscopy. Bacterial structures were often covered by iron deposition which could be remove...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02010579
更新日期:1979-03-01 00:00:00
abstract::Pathogenic and protective roles have been attributed to gut commensal microbiota (GCM) in gastrointestinal inflammatory and functional disorders. We have shown that the adaptation to a new environment implies specific changes in the composition of GCM. Here we assessed if environment-related adaptive changes of GCM mo...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-013-0241-0
更新日期:2013-07-01 00:00:00
abstract::Sprays of commercial preparations of the bacterium Bacillus thuringiensis subsp. israelensis are widely used for the control of mosquito larvae. Despite an abundant literature on B. thuringiensis subsp. israelensis field efficiency on mosquito control, few studies have evaluated the fate of spores in the environment a...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-013-0360-7
更新日期:2014-04-01 00:00:00
abstract::Antimicrobial resistance (AMR) in the aquatic environment has received increasing attention in recent years, and growing eutrophication problems may contribute to AMR in aquatic ecosystems. To evaluate whether and how eutrophication affects AMR, 40 surface water samples were collected from the Minjiang River, Fujian P...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-019-01464-x
更新日期:2020-07-01 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::Ribosomal RNA (rRNA) is one of the most important macromolecules in the cell. It is well established that high-temperature environmental conditions destabilize rRNA, leading to a selection for G+C-rich stabilizing structures. Our knowledge about the nucleotide composition effect of other environmental conditions, howe...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-008-9446-z
更新日期:2009-04-01 00:00:00