- published: 12 May 2016
- views: 2031
The red algae, or Rhodophyta (/roʊˈdɒfᵻtə/ roh-DOF-fit-tə or /ˌroʊdəˈfaɪtə/ ROH-də-FY-tə; from Ancient Greek: ῥόδον rhodon, "rose" and φυτόν phyton, "plant"), are one of the oldest groups of eukaryotic algae, and also one of the largest, with about 5,000–6,000 species of mostly multicellular, marine algae, including many notable seaweeds. Other references indicate as many as 10,000 species; more detailed counts indicate about 4,000 in about 600 genera (3,738 marine species in 546 genera in 10 orders, plus the unclassifiable; and 164 freshwater species in 30 genera in eight orders).
The red algae form a distinct group characterized by having eukaryotic cells without flagella and centrioles, chloroplasts that lack external endoplasmic reticulum, contain unstacked thylakoids and use phycobiliproteins as accessory pigments (giving them their red color). They store floridean starch, a type of starch that consists of highly-branched amylopectin without amylose, as food reserves outside their plastids. Most red algae are also multicellular, macroscopic, marine, and use sexual reproduction to reproduce. They have alternation of generations and may have three generations rather than two.
Red is the color at the end of the spectrum of visible light next to orange and opposite violet. Red color has a predominant light wavelength of roughly 620–740 nanometres. Red is one of the additive primary colors of visible light, along with green and blue, which in Red Green Blue (RGB) color systems are combined to create all the colors on a computer monitor or television screen. Red is also one of the subtractive primary colors, along with yellow and blue, of the RYB color space and traditional color wheel used by painters and artists.
Reds can vary in shade from very light pink to very dark maroon or burgundy; and in hue from the bright orange-red scarlet or vermilion to the bluish-red crimson.
Red was widely used in prehistoric cave art, made with red hematite or iron oxide, or red ochre. Early civilizations in China, the Middle East and Europe made red dyes from the madder plant or from a tiny insect called Kermes vermilio. Civilizations in the Americas made brilliant reds from another scale insect, the cochineal; ancient Chinese artists during the Han Dynasty used dye from the madder plant to color silk and pigments from lead oxide to color pottery.
http://goo.gl/IOrQcv Today we are going to show you how to avoid and eliminate one of the most common reef tank pests: Cyanobacteria, more commonly referred to as Red Slime Algae. Simply knowing what causes this slime to grow makes it easier to avoid an outbreak and remove in the event an outbreak does occur. READ ACCOMPANYING BLOG POST (with full video transcript): http://goo.gl/dpxQ9i WATCH "HOW TO CONTROL PHOSPHATE IN A REEF TANK": https://goo.gl/uDwRKe VIEW RED SLIME REMOVERS AT MARINE DEPOT: http://goo.gl/wc9wa6 VIEW PHOSPHATE REMOVERS AT MARINE DEPOT: http://goo.gl/SLb9bC LEARN MORE ABOUT REMOVING RED SLIME/CYANOBACTERIA: http://goo.gl/Pl8Ybl Thanks for watching! If you found this video tutorial helpful, please like or share it with your fellow reef nerds! Don't forget to subs...
All you need to know about cyano. You need 20-30 times your tank volume per hour of flow. If power heads are old, and not giving the flow you need then replace them. I can't tell you which methord or methords to use, that is the difficult choice you have to make. Magnesium levels of 1,600 can kill the cyano, but it can take upto 3 months. Phosphate levels in a reef tank should be 0.03 or below.
Difference between red algae and green algae . Major differences algae are defined as chlorophyllous, thalloid, a vascular plants with no cellular differentiation. Algae are usually aquatic, either marine or fresh water. Only few , in the classification, we find main classes of algae; Namely, red algae, green algae, and brown algae. All the algae are eukaryotes having , both types of algae have single celled and multicellular species. Green algae species tend to be single celled while red tend to be multicellular , what are the differences between red, green, and brown algae?. Green algae, unlike red and brown algae, also has unicellular species which algae alternates between these two stages, called alternation of generations member posts . Hi. I see three main catogries of seaweeds.(alga...
This video describes about general characteristics of Rhodophyceae. The members are commonly called as red algae, because of the dominance of red pigment r-phycoerythrin in their body.
what is red algae
SEVERAL popular Sydney beaches, including the iconic Bondi, resembled scenes out of a apocalyptic film today after an algae bloom turned the water blood red. Patches of the red algae, a natural phenomenon that can be exacerbated by certain weather conditions, were sighted between Bondi Beach and Maroubra Beach. But despite the warnings a number of intrepid beachgoers were seen venturing into the water. The natural phenomenon is caused when algae, a plant-like organism flourishes and large groups of the miniscule plants, which can appear in various colours, gather together often with spectacular results. Known as Nocturnal Scintillans or sea sparkle it has no toxic effects but people are still advised to avoid swimming in areas with discoloured water because the algae, which can be high in...
what is red algae
Table of Contents: 01:11 - Excavate 02:28 - Giardia 05:00 - Trichomonas 06:15 - Euglenozoans 08:14 - Trypanosoma 10:42 - "SAR" clade - Stramenopiles 12:43 - Diatoms 16:40 - Brown algae 19:58 - "SAR" clade - Alveolates 20:34 - Dinoflagellates 25:10 - Plasmodium 27:35 - Ciliates 29:05 - "SAR" clade - Rhizarians 29:48 - Forams 33:29 - Cercozoans 34:23 - Archaeplastida - Red algae 36:49 - Green algae 38:14 - Unikonta 38:34 - Plasmodial slime mold 39:25 - Cellular slime mold 40:50 - Gymnamoebas/Entamoebas
Запись матча между NG Red и Sea Algae на северо-американской квалификации турнира Overwatch Open. Комментируют Homer и Rillion. Карты: Нумбани, Кингс Роу Наша страница ВК: http://vk.com/owstarladder Наш твиттер: https://twitter.com/owstarladder
Another semi-instructional 'Let's play' series featuring Tiwick the purple cabbit as he takes on Fall of Eden. A text-based adventure game with a demonic/furry theme. We secure the samples of red algae Ophelia needs to complete her experiments, and bring all the gathered ingredients to her in the Burrows. Unfortunately, we also discover one of the Bad Ends to this game. Fall of Eden, as well as Corruption of Champions and Trials in Tainted Space can each be found here: https://www.fenoxo.com/play-games/ FoE's Ultimate Compendium can be found here: https://docs.google.com/document/d/1fyo9zqM2z6Rz1Wd2Xkyd3gaSIaFZKHWGjTX6hbQEygM/edit#
Join Matt, Joe and Josh as they discuss the murder of atheist blogger Nazimuddin Samad on the streets of Bangladesh, the places where it is a crime to be an atheist, Obama's statement in which he said that he will not do anything to protect Hillary if a criminal investigation happens, an Indiana cop who was stopping people and preaching his religious beliefs as well as questioning those who he stopped, why green algae beat red algae onto land and more. Please subscribe, rate, comment and share; it helps us more than you can imagine.
On this episode of Expanded Perspectives the guys start the show talking about they're favorite Holiday drinks and then in Italy, the legend of La Befana is one that is popularly told around the time of the Epiphany. What does a Catholic holiday have to do with modern Paganism? Well, La Befana happens to be a witch. According to folklore, on the night before the feast of the Epiphany in early January, Befana flies around on her broom, delivering gifts. Much like Santa Claus, she leaves candy, fruit, or small gifts in the stockings of children who are well-behaved throughout the year. On the other hand, if a child is naughty, he or she can expect to find a lump of coal left behind by La Befana. Then, Researchers at Oregon State have patented a new strain of seaweed that tastes like bacon wh...
In The Mind of Plants | Educational Documentary Plants, also called green plants (Viridiplantae in Latin), are multicellular eukaryotes of the kingdom Plantae. They form a clade that includes the flowering plants, conifers and other gymnosperms, ferns, clubmosses, hornworts, liverworts, mosses and the green algae. Plants exclude the red and brown algae, the fungi, archaea, bacteria and animals. For more full screen documentaries use the below link. https://www.youtube.com/channel/UCuwpGO-JD_jpzunoLKb5WCg?sub_confirmation=1
Plants Documentary - Top Documentary Films Plants, also called green plants, are multicellular eukaryotes of the kingdom Plantae. They form an unranked clade Viridiplantae (Latin for green plants) that includes the flowering plants, conifers and other gymnosperms, ferns, clubmosses, hornworts, liverworts, mosses and the green algae. Green plants exclude the red and brown algae, the fungi, archaea, bacteria and animals. Read More: https://en.wikipedia.org/wiki/Plant Subscribe to our Channel: https://www.youtube.com/channel/UCLIE1Z5CszmdVqoWhSbVpgw
How Plants Communicate & Think - World Geographic Channel Plants, also called green plants, are multicellular eukaryotes of the kingdom Plantae. They form an unranked clade Viridiplantae (Latin for green plants) that includes the flowering plants, conifers and other gymnosperms, ferns, clubmosses, hornworts, liverworts, mosses and the green algae. Green plants exclude the red and brown algae, the fungi, archaea, bacteria and animals. Read More: https://en.wikipedia.org/wiki/Plant subscribe to our channel https://www.youtube.com/channel/UCekkwglm2t2EDZNSSQVeyhw
The Culture Collection of Algae at the University of Texas at Austin, herein designated as "UTEX", has been in continuous operation since 1953. It was established by Richard C. Starr at Indiana University and was moved to its present site in 1976. Dr. Starr was the Director of UTEX from its inception until his untimely death in February of 1998, at which time Jerry J. Brand became the Director. The principal resource of UTEX is its extensive collection of living algae. Nearly 2,800 different strains of algae, representing approximately 200 different genera, are provided to the public at modest charge. The Collection maintains an especially strong representation of freshwater and edaphic green algae and cyanobacteria, but includes representatives of most major algal taxa, including many ...
Plants Are Intelligent Living Things - In The Minds Of Plants Documentary Plants, also called green plants (Viridiplantae in Latin), are multicellular eukaryotes of the kingdom Plantae. They form a clade that includes the flowering plants, conifers and other gymnosperms, ferns, clubmosses, hornworts, liverworts, mosses and the green algae. Plants exclude the red and brown algae, animals, the fungi, archaea and bacteria. Green plants have cell walls with cellulose and characteristically obtain most of their energy from sunlight via photosynthesis by primary chloroplasts, derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b which gives them their green color. Some plants are parasitic and have lost the ability to produce normal amounts of chlorophy...
Red Lake, hear my words
Where the eagles cry
And the spirits fly o'er sacred land
Red lake, hear my prayers
They're a feeble cry
To an angry sky that bleeds for Man
"So get up and shut up
and don't let us use you
Oh get up and shut up
and let us abuse you"
It's a crazy world
And my spirit cries against the wind -
can you send to me
I've been this way before
I've danced on distant shores
I've watched the minds of men
Go south - come back again
I've walked a million miles
I've seen my little child
I've knocked on every door
And still I'm wanting more - To be home -
To be home -
yeah yeah to be home -
To be home -