Evaluation of competitive ability of two heterotrophic planktonic bacteria under phosphorus limitation
نویسندگان
چکیده
منابع مشابه
Heterotrophic Planktonic Microbes: Virus, Bacteria, Archaea, and Protozoa
Although heterotrophic marine microorganisms in the open sea have been studied since the late 1800s and early 1900s by pioneers like Fischer, Haeckel, and Calkins (1–3), the contribution of these diminutive species to the food webs of oceanographic systems was not fully recognized until nearly a century later. Attention was drawn to the larger and more conspicuous taxa of photosynthetic protist...
متن کاملDifferential utilization patterns of dissolved organic phosphorus compounds by heterotrophic bacteria in two mountain lakes
Although phosphorus limitation is common in freshwaters and bacteria are known to use dissolved organic phosphorus (DOP), little is known about how efficiently DOP compounds are taken up by individual bacterial taxa. Here, we assessed bacterial uptake of three model DOP substrates in two mountain lakes and examined whether DOP uptake followed concentration-dependent patterns. We determined bulk...
متن کاملconjugated linoleic acids, amino acid profile and other characteristics of meat produced under identical condition from two iranian fat tailed breeds of lamb
گوشت قرمز یکی از مهم ترین فرآورده های دامی در تأمین پروتئین و انرژی می باشد که در حمل ویتامین های محلول در چربی نیز حائز اهمیت می باشد. انسان مانند سایر مهره داران اسید های چرب ضروری (لینولئیک و آلفا لینولنیک) مورد نیاز خود از طریق غذا تأمین می نماید. اسید های چرب ضروی پیش ساز اسید های چرب غیر اشباع با چند پیوند دوگانه هستند. اسید لینولنیک پیش ساز اسیدهای چرب امگا 3 و اسید لینولئیک نیز پیش ساز ...
the effect of consciousness raising of sociolinguistic skills on speaking ability of iranian efl learners
abstract the main purpose of this study was to investigate whether there was any significant difference between the speaking achievement of learners who were trained by means of consciousness raising of sociolinguistic skills and that of learners who were trained without the above mentioned task. the participants of this study consist of 60 intermediate level students participating languag...
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ژورنال
عنوان ژورنال: Aquatic Microbial Ecology
سال: 1998
ISSN: 0948-3055,1616-1564
DOI: 10.3354/ame014119