Dynamics of natural prokaryotes, viruses, and heterotrophic nanoflagellates in alpine karstic groundwater
نویسندگان
چکیده
منابع مشابه
Dynamics of natural prokaryotes, viruses, and heterotrophic nanoflagellates in alpine karstic groundwater
Seasonal dynamics of naturally occurring prokaryotes, viruses, and heterotrophic nanoflagellates in two hydro-geologically contrasting alpine karst springs were monitored over three annual cycles. To our knowledge, this study is the first to shed light on the occurrence and possible interrelationships between these three groups in karstic groundwater. Hydrological and microbiological standard i...
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Prokaryotes and protists are important players in the carbon biogeochemistry of marine ecosystems, and temperature is one of the physical factors most influential in the metabolism and composition of plankton communities. Small changes in temperature can change the flow of carbon and the community structure of planktonic ecosystems, and climatological models predict a rise in temperature of 2 t...
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امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...
Distribution of Heterotrophic Nanoflagellates and Their Importance as the Bacterial Consumer in a Eutrophic Coastal Seawater
Seasonal and vertical changes in abundances of bacteria and heterotrophic nanoflagellates (HNF), and HNF grazing on bacteria were investigated in a small eutrophic inlet of Uranouchi-Wan throughout the years. Bacterial densities in the surface water ranged from 1.2 to 11 (average 4.3) × 106 cells ml–1 with a couple of maxima following the algal blooming. Densities of HNF ranged from 0.54 to 73 ...
متن کاملTrophic roles of heterotrophic nanoflagellates and ciliates among planktonic organisms in a hypereutrophic pond
We followed seasonal changes in abundance of bacteria, heterotrophic nanoflagellates (HNF), ciliates and crustaceans, and consumption of bacteria by the protozoans, to investigate trophic interactions among these organisms in a hypereutrophic pond from March to October 1997. Densities of HNF and ciliates were high and attained a maximum of 1 .4 X 105 and 3500 cells ml-l, respectively. However, ...
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ژورنال
عنوان ژورنال: MicrobiologyOpen
سال: 2013
ISSN: 2045-8827,2045-8827
DOI: 10.1002/mbo3.98