نتایج جستجو برای: جلبک algae

تعداد نتایج: 20473  

2012
Sun Park Kang Ji ByungRae Cha

Red tide is a natural phenomenon that changes sea color by harmful algal bloom. There has been a lot of study on red tide due to increasing of red tide damage. However, to automatically recognize the red tide algae images present in previous studies are not enough. It is difficult to recognize red tide algae images because they do not have matching features for recognizing various species of al...

2013
Sze-Bi Hsu Feng-Bin Wang Xiao-Qiang Zhao

This paper is devoted to the study of two advection-dispersion-reaction models arising from the dynamics of harmful algae and zooplankton in flowingwater habitats where a main channel is coupled to a hydraulic storage zone, representing an ensemble of fringing coves on the shoreline. For the system modeling the dynamics of algae and their toxin that contains little limiting nutrient, we establi...

Journal: :The Journal of General Physiology 1956
William Arnold Jane Thompson

1. Blue-green algae, red algae, and purple bacteria all show the emission of delayed light. 2. The action spectra for the production of delayed light by three species of blue-green algae have one broad band with a peak at 620 mmicro. 3. The action spectrum for production of delayed light by the red algae has one peak at 550 mmicro with a shoulder from 600 to 660 mmicro. 4. The emission spectra ...

Journal: :Cold Spring Harbor perspectives in biology 2014
James G Umen

The green lineage of chlorophyte algae and streptophytes form a large and diverse clade with multiple independent transitions to produce multicellular and/or macroscopically complex organization. In this review, I focus on two of the best-studied multicellular groups of green algae: charophytes and volvocines. Charophyte algae are the closest relatives of land plants and encompass the transitio...

Journal: :American journal of botany 2004
Robert A Andersen

In this paper, I review what is currently known of phylogenetic relationships of heterokont and haptophyte algae. Heterokont algae are a monophyletic group that is classified into 17 classes and represents a diverse group of marine, freshwater, and terrestrial algae. Classes are distinguished by morphology, chloroplast pigments, ultrastructural features, and gene sequence data. Electron microsc...

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...

خزاعی, حمیدرضا, سیبی, محمد, نظامی, احمد,

به منظور بررسی اثر غلظت، زمان و نحوه­ی مصرف عصاره­ی جلبک دریایی بر برخی ویژگی‌های مرفولوژیک ریشه و اندام هوایی گیاه گلرنگ، در سال 1393 این آزمایش به‌صورت فاکتوریل در قالب طرح پایه­ی کاملاً تصادفی در سه تکرار در گلخانه­ی تحقیقاتی دانشکده­ی کشاورزی دانشگاه فردوسی مشهد اجرا شد. فاکتورهای آزمایش شامل غلظت­های مصرف عصاره­ی جلبک دریایی در چهار سطح (عدم مصرف و مصرف 1، 5/1 و 2 لیتر در هکتار)، مراحل مصرف...

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...

ژورنال: :علمی شیلات ایران 0
ابراهیم اونق e. ownagh گروه شیلات، دانشکده منابع طبیعی، دانشگاه ارومیه ناصر آق n. agh گروه شیلات، دانشکده منابع طبیعی، دانشگاه ارومیه فرزانه نوری f. noori گروه تکثیر و پرورش آبزیان، پژوهشکده آرتمیا و جانوران آبزی، دانشگاه ارومیه

به منظور بررسی امکان بیشترین جایگزینی جلبک های تک سلولی با منابع غذایی ارزان قیمت در تغذیه آرتمیا، دو سویه آرتمیا ارومیانا و آرتمیای پارتنوژنز تحت شرایط آزمایشگاهی  با استفاده از سه منبع غذایی شامل: سبوس گندم، کنجاله سویا و مخلوط 50.50 درصد سبوس گندم و سویا در 12 تیمار مختلف که هر کدام از این تیمارها با درصدهای متفاوتی از جلبک دونالیلا سالینا ترکیب شده بودند، به مدت 15 روز تغذیه شدند و نتایج حا...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید