نتایج جستجو برای: algae

تعداد نتایج: 19083  

2015
Alice Jernigan Christa Hestekin

Capillary electrophoresis single-strand conformational polymorphism (CE-SSCP) was explored as a fast and inexpensive method to differentiate both prokaryotic (blue-green) and eukaryotic (green and brown) algae. A selection of two blue-green algae (Nostoc muscorum and Anabaena inaequalis), five green algae (Chlorella vulgaris, Oedogonium foveolatum, Mougeotia sp., Scenedesmus quadricauda, and Ul...

Marine algae are known to contain a wide variety of antioxidant compounds. Natural antioxidants, found in many algae, are important bioactive compounds that play an important role against various diseases and ageing processes through protection of cells from oxidative damage. There is now a global interest in finding new and safe antioxidants from natural sources. Algae can have a variety of pr...

Journal: :Plant physiology 1980
C H Chen D S Berns

Thermotropic properties of blue-green algae grown at high, room, and low temperatures in H(2)O and D(2)O media were studied by highly sensitive differential scanning microcalorimetry. The thermograms of these organisms contain an endothermal peak in the temperature range of 50 to 70 C with an endothermal heat ranging from 0.14 to 1.91 joules per gram organism. The temperature at which the endot...

Caglar , M., Coskun , E., Selamoglu , Z.,

In this study, the epilithic algae in the samples collected from three stations on the Çalgan Creek (Elazığ) in Fırat University between January and June 2016 were investigated in terms of some physical and chemical parameters. During the study, 44 taxa of epilithic algae were recorded. It was observed that Euglenophyta (1 species), Cyanophyta (3 species), Chlorophyta (6 species) and Bacillario...

2014
Ryan J. Powell Russell T. Hill Ryan Joseph Powell Feng Chen Harold Schreier Paul Behrens Connie Powell

Title of Dissertation: RAPID HARVEST OF ALGAE FOR BIOFUEL PRODUCTION WITH THE AGGREGATING BACTERIUM BACILLUS SP. STRAIN RP1137 Ryan J. Powell, Doctor of Philosophy, 2014 Directed By: Dr. Russell T. Hill, Professor, University of Maryland Center for Environmental Science Algal biofuels represent one of the most promising means of sustainably replacing liquid fuels. However significant challenges...

2002
John D. Wehr Louis Calder

Brown algae, the Phaeophyceae (or Fucophyceae; Christensen, 1978), are a class (or division, Phaeophyta; Papenfuss, 1951) of algae consisting mainly of complex, macroscopic seaweeds whose brown color comes from a carotenoid pigment, fucoxanthin, and in some species, various phaeophycean tannins. Of perhaps 2000 species (in 265 genera) of brown algae (Van den Hoek et al., 1995), less than 1% are...

ژورنال: :مجله گیاهشناسی ایران 2015
فاطمه سرگزی مسعود شیدایی حسین ریاحی

تنوع ریختی و بوم شناسی و ارتباط درون گونه ای جلبک قرمز جنس هیپنه آ بر روی 15 جمعیت متعلق به 5 گونه از دریای عمان در این پژوهش بررسی شده است. در این پژوهش تجزیه و تحلیل خوشه ای، تجزیه مولفه های اصلی و تحلیل روابط بوم شناسی گونه ها انجام گرفت. تجزیه و تحلیل آماری نشان داد که صفاتی مثل وجود انشعابات خاص، موقعیت تتراسپورانژها و نحوه اتصال جلبک به زیستگاه جلبک بیشترین نقش را به عنوان صفات تشخیصی جدا...

ژورنال: :مجله گیاهشناسی ایران 2007
جلوه سهرابی پور رضا ربیعی

در این چک لیست 62 گونه از جلبکهای دریایی سبز متعلق به آبهای خلیج فارس و خلیج عمان در نوار ساحلی ایران ارائه می گردد که خلاصه ای است از مجموع 9 گزارش علمی منتشر شده در مورد جلبکهای خلیج فارس و نواحی ایرانی خلیج عمان که در طی 159 سال گذشته منتشر شده اند. نام صحیح گونه ها در سایت www.algaebase.org  که بوسیله جلبک شناس معروف مک گیوری طراحی گردیده است کنترل شده است. در این چک لیست تعداد گونه های جلب...

Journal: :Journal of cell science 1981
P J McAuley

Green hydra maintains within its digestive cells a population of symbiotic algae which remains constant in normal culture conditions, although potentially the algae have a much higher growth rate than their animal hosts. Numbers of algae per cell vary along the body column, cells in the gastric region containing more than those of the head or peduncle. This relationship is disturbed in excised,...

Journal: :Journal of cell science 1984
M Rahat V Reich

An aposymbiotic strain of Hydra viridis became infected with free-living Chlorella sp. A stable symbiosis formed that differed in its characteristics from other known Chlorella/Hydra symbioses. The algae reproduced and formed clusters in host endodermal cells, inside large vacuoles filled with an electron-dense substance. A few algae were found to be digested by the hydra, but the apparently un...

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