- published: 29 Jun 2010
- views: 831103
A lichen is a composite organism that arises from algae or cyanobacteria (or both) living among filaments of a fungus in a symbiotic relationship. The combined life form has properties that are very different from the properties of its component organisms. Lichens come in many colors, sizes, and forms. The properties are sometimes plant-like, but lichens are not plants. Lichens may have tiny, leafless branches (fruticose), flat leaf-like structures (foliose), flakes that lie on the surface like peeling paint (crustose), or other growth forms. A macrolichen is a lichen that is either bush-like or leafy; all other lichens are termed microlichens. Here, "macro" and "micro" do not refer to size, but to the growth form.Common names for lichens may contain the word "moss" (e.g., "Reindeer moss", "Iceland moss"), and lichens may superficially look like and grow with mosses, but lichens are not related to mosses or any plant. Lichens do not have roots that absorb water and nutrients as plants do but like plants they produce their own food by photosynthesis using sunlight energy, from carbon dioxide, water and minerals in their environment. When they grow on plants, they do not live as parasites and only use the plants as a substrate.
A homemade music video for Aphex Twin's Lichen from the album Selected Ambient Works Vol. II (1994). All musical content is owned by WMG.
Lichen are one of the most undervalued organisms on the face of the planet. Watch this video to find out why. Some people have commented that I say the lichen is eating the rock and that this is not the case. I do think I'm using the word "eating" a little more loosely here, to simply mean "derive nutrients from," which Lichen certainly does. Like most fungi, they use external digestion, secreting enzymes and acid into their substrate and deriving (some) nutrients from it. If I made this video again, I would flip the "supplement" part around and say that it makes most of its food using the algae and supplements its diet with nutrients from the rock. Part of the Restoring the Americas Collection, this video has a corresponding blog post. http://www.newforestearth.org/v0.2/terrible-nat...
Join Jessi this week at the fort and learn about the unexpectedly awesome organism that's made up of two living things: LICHEN! ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/SciShow Or help support us by becoming our patron on Patreon: https://www.patreon.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow SOURCES: http://www.fs.fed.us/wildflowers/beauty/lichens/ http://www.nhm.ac.uk/nature-online/life/plants-fungi/lichens/ Photos for reference: http://www.f...
Lichens are composite organisms comprising of an alga and fungus or a cyanbacterium and fungus in a symbiotic relationship in most cases. The lichen's alga and cyanobacterium perform photosynthesis with the fungus component deriving some of these photosynthetic products for it's growth. The fungus provides mineral nutrients extracted from the air, water and substrate to which is is attached along with water storage and housing. The fungal component also plays a role in the lichen adhering to it's substrate. Lichens can live in the harshest of environments for example, withstanding high UV radiation levels at South Pole to mountain tops. Salt spray is also not a problem for some species that live on rocks close to the sea. Lichens are long lived and their celluar ultrastructure has b...
This video describes about general characteristics of lichens, which are composite organisms consisting of symbiotic associations of algae (phycobiont) and fungi (mycobiont).
Moje zdjęcia z Lichenia
From the field to the lab, we take a brief look at how lichens are identified by sight and by chemical spot tests. This video was made for a Lichenology class at Oregon State University by Jena Fay and Sara Lynch. Lichens mentioned here include Cladonia, Lobaria, Evernia, Usnea, Ramalina, Xanthoria and Bryoria. Happy identifying!
Welcome back to SciShow Talk Show where Hank talks to interesting people about interesting things! This week, Hank discusses a new lichen discovery with researcher Toby Spribille. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Kevin Bealer, Justin Lentz, Mark Terrio-Cameron, Patrick Merrithew, Accalia Elementia, Fatima Iqbal, Benny, Kyle Anderson, Mike Frayn, Tim Curwick, Will and Sonja Marple, Philippe von Bergen, Chris Peters, Kathy Philip, Patrick D. Ashmore, Thomas J., charles george, and Bader AlGhamdi. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cov...
Szatan kusi, z ambony namawia Szatan ustami kleru przemawia Szatan zna sztuczek podstępnych tysiąc Obieca wszystko, tylko musisz mu przysiąc: "Będę ci służył, pokłony oddawał Co miesiąc ostatnim groszem wspomagał Nie będę myślał, przecież mam ciebie! Żyć jest weselej w mentalnej biedzie, bo pieniądz to zło! Zabierz czym prędzej ode mnie go!"
A homemade music video for Aphex Twin's Lichen from the album Selected Ambient Works Vol. II (1994). All musical content is owned by WMG.
Lichen are one of the most undervalued organisms on the face of the planet. Watch this video to find out why. Some people have commented that I say the lichen is eating the rock and that this is not the case. I do think I'm using the word "eating" a little more loosely here, to simply mean "derive nutrients from," which Lichen certainly does. Like most fungi, they use external digestion, secreting enzymes and acid into their substrate and deriving (some) nutrients from it. If I made this video again, I would flip the "supplement" part around and say that it makes most of its food using the algae and supplements its diet with nutrients from the rock. Part of the Restoring the Americas Collection, this video has a corresponding blog post. http://www.newforestearth.org/v0.2/terrible-nat...
Join Jessi this week at the fort and learn about the unexpectedly awesome organism that's made up of two living things: LICHEN! ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/SciShow Or help support us by becoming our patron on Patreon: https://www.patreon.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow SOURCES: http://www.fs.fed.us/wildflowers/beauty/lichens/ http://www.nhm.ac.uk/nature-online/life/plants-fungi/lichens/ Photos for reference: http://www.f...
Lichens are composite organisms comprising of an alga and fungus or a cyanbacterium and fungus in a symbiotic relationship in most cases. The lichen's alga and cyanobacterium perform photosynthesis with the fungus component deriving some of these photosynthetic products for it's growth. The fungus provides mineral nutrients extracted from the air, water and substrate to which is is attached along with water storage and housing. The fungal component also plays a role in the lichen adhering to it's substrate. Lichens can live in the harshest of environments for example, withstanding high UV radiation levels at South Pole to mountain tops. Salt spray is also not a problem for some species that live on rocks close to the sea. Lichens are long lived and their celluar ultrastructure has b...
This video describes about general characteristics of lichens, which are composite organisms consisting of symbiotic associations of algae (phycobiont) and fungi (mycobiont).
Moje zdjęcia z Lichenia
From the field to the lab, we take a brief look at how lichens are identified by sight and by chemical spot tests. This video was made for a Lichenology class at Oregon State University by Jena Fay and Sara Lynch. Lichens mentioned here include Cladonia, Lobaria, Evernia, Usnea, Ramalina, Xanthoria and Bryoria. Happy identifying!
Welcome back to SciShow Talk Show where Hank talks to interesting people about interesting things! This week, Hank discusses a new lichen discovery with researcher Toby Spribille. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Kevin Bealer, Justin Lentz, Mark Terrio-Cameron, Patrick Merrithew, Accalia Elementia, Fatima Iqbal, Benny, Kyle Anderson, Mike Frayn, Tim Curwick, Will and Sonja Marple, Philippe von Bergen, Chris Peters, Kathy Philip, Patrick D. Ashmore, Thomas J., charles george, and Bader AlGhamdi. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cov...
Szatan kusi, z ambony namawia Szatan ustami kleru przemawia Szatan zna sztuczek podstępnych tysiąc Obieca wszystko, tylko musisz mu przysiąc: "Będę ci służył, pokłony oddawał Co miesiąc ostatnim groszem wspomagał Nie będę myślał, przecież mam ciebie! Żyć jest weselej w mentalnej biedzie, bo pieniądz to zło! Zabierz czym prędzej ode mnie go!"
In this monologue I take you on another walk through the hills and introduce you to some leaves with parasites and my love of lichens and reflect a little on moving with presence, instead of distractions. http://thesomethingmonologues.podbean.com/e/tsm39-leaves-with-parasites-lichens-sand-refelctions-on-movement-with-presence/ Links relevant to this monologue include the following : http://en.wikipedia.org/wiki/Scale_insect https://www.planetnatural.com/pest-problem-solver/beneficial-insects/leafminer-parasite/ http://www.sel.barc.usda.gov/scalenet/scalenet.htm http://edis.ifas.ufl.edu/ch195 http://en.wikipedia.org/wiki/Lichen http://cpbr.gov.au/lichen/ecology.html http://cpbr.gov.au/lichen/index.html http://cpbr.gov.au/lichen/lichens-people.html
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Lichens live at Supersonic 2012 - Audio Only
Grey tree runner mantis vs. Lichen huntsman spider Destructive katydid vs. Tent spider Rhinoceros beetle vs. Meat ants Green jumping spider vs. Long-jawed jumping spider Giant banded huntsman spider vs. Jungle huntsman spider
Black-tailed scorpion baby vs. Pirate spider Rufus comb-footed spider vs. Spitting spider Lichen bark mantis vs. Rock spider Bug-eyed katydid vs. Candy cane katydid Tiger assassin bug vs. Silverback cross spider
Nastassja Noell presenting at the 2014 Radical Mycology Convergence. More info at: radicalmycology.com radicalmycologyconvergence.com "We’ll be covering the basics about lichens: the primary morphotypes, some subtle thallus characteristics, how to conduct chemical spot tests, and some of the common genera. Then we’ll head into the field and learn some field tricks for finding lichens, how to collect lichens and how to curate them."
Give me faith oh Jah I pray. To face another day ohhhh
Lord give me strength to face another day. Carry on life's road, carry all my load. Give me strength oh Jah to tarry on. Oh my Lord.
Oh Alpha and Omega, the beginning and the end
Please hear me when I plead. All help already pass and, all help for years to come. Without who am I could not be. Many are trying to leave you outta their lives. But I wouldn't be so unwise. And so I promise to serve thee. Oh my Lord. And I beg thee some mercy.
Lord, give me strength to face another day. To journey along life's road, to carry my heavy load. Give me strength oh Jah to tarry on. Oh my Lord.
Life has become a burden, living in this evil system. Oh Jah please strengthen me. I can not make it along. I need you as my own. Oh Jah I call on thee. Some are trying to leave you out of their lives. But I wouldn't be so unwise. And so I promise to serve thee with all my all. And I beg thee some mercy.
Lord give me strength to face another day. make it along life's road, carry all my load. Give me strength to tarry on. Oh my lord.
Say, give me strength oh Jah to carry on. And do thy holy word.
Give me strength that I can make my stand. Above the sinking sand.
Many are trying to leave you outta their lives, but I wouldn't be so unwise. And so I promise to serve thee with all my all. And I'm begging thee mercy.
Lord give me strength to face another day. To make it along life's road and carry all my load.
Give me strength oh Jah to tarry on. Oh my Lord.