Meet The World's Largest Living Organism When you think of the biggest organisms on Earth, the blue whale probably springs to mind first. After all, these gargantuan beasts are up to 30 meters long (100 feet) and can weigh upward of 180 tons, meaning they’re probably bigger than even the largest dinosaurs. But it turns out that the world record holder for the largest living organism on Earth is something much less impressive to look at, but size wise it makes even the mighty blue whale seem puny; it’s a fungus. More specifically, the contender for the world’s largest known organism is a honey fungus living in the Blue Mountains of Oregon. Honey fungus, or honey mushroom, is actually the common name given to several different species of fungi in the genus Armillaria. Members of the Armillaria genus produce clumps of edible yellow-brown mushrooms that grow above ground. Scientists first started to appreciate the sheer size of Armillaria after two massive specimens were discovered in 1992.
Les différentes étapes de la culture fongique J’ai essayer d’effectuer une traduction d’un schéma de Paul Stamets (extrait de Growing gourmet and medical mushrooms) expliquant les différentes phases de la culture fongique. Il permet de bien visualiser les étapes à reproduire pour mener à bien une culture de champignons comestibles. Le premier objectif lors d’une culture de champignons est d’obtenir une source de mycélium pur sur gélose afin de d’inoculer un substrat de colonisation à base de céréales. Recherches qui ont permis de trouver cet article: culture fongiqueGuide Culture Champignon Magique Pdfla production de la protease a partir d une espece fongiquecultiver des champignons de paris sans kitproduire myceliumexplication comment faire la culture de champignon lrs etapescomment reproduire des champignons agar agarSchema de production des champignons pleurotescomment fabriquer le myceliumcmt cultivé le champignon a partir des dechets du mais Autres articles à consulter:
Ferns "Talk" Via Pheromones To Decide Sex When it comes to reproduction, at first glance it’s easy to believe that plants have it easy when compared with animals. After all, they don’t have to engage in elaborate displays or fights to win over females since most flowering plants are both male and female. However, for the Japanese climbing fern, things aren’t so simple. Individual plants of this species (Lygodium japonicum) are either male or female, which begs the question: how do they ensure a balanced ratio between the sexes to ensure reproduction can occur in communities? The key player in this process was found to be a well-known pheromone called gibberellin. The researchers discovered that young gametophytes—a sexual phase that produces gametes—are all female. According to lead researcher Makoto Matsuoka, these intriguing findings could have important ecological implications. [Via Science, Science, Nature and Phys.org] Read this next: When Did Megalodon Disappear From The Oceans?
Des champignons comestibles au jardin! Si vous pratiquez le jardinage avec du paillis nutritif (paille, copeau de bois feuillu, BRF), vous avez certainement déjà remarqué des champignons dans votre jardin ou forêt nourricière. Ils sont essentiels à la décomposition du paillis et fournissent beaucoup de nutriment au sol par ce processus. Ils sont donc très utiles, mais ne sont typiquement pas comestibles... Stropharia rugosa-annulata Pourtant, il existe quelques espèces de champignons comestibles qui peuvent être installés (inoculés) dans votre jardin, dont le plus intéressant est la Strophaire annelée (Stropharia rugosa-annulata) qui survit assez facilement à nos hivers s’il est bien protégé. Ces champignons comestibles saprophytes (se nourrissant de matière organique morte tels les copeaux de bois et la paille) sont bénéfiques pour les plantes et nous offre en plus leur délicieux carpophore (partie visible des champignons supérieurs, productrice de spores).
[Tome] | Plants Communicate Using An Internet Of Fungus Hidden beneath the surface and entangled in the roots of Earth’s astonishing and diverse plant life, there exists a biological superhighway linking together the members of the plant kingdom in what researchers call the “wood wide web”. This organic network operates much like our internet, allowing plants to communicate, bestow nutrition, or even harm one another. The network is comprised of thin threads of fungus known as mycelium that grow outwards underground up to a few meters from its partnering plant, meaning that all of the plant life within a region is likely tapped into the network and connected to one another. This fungal network has been found to allow plants to aid one another in growth and flourishing. A study conducted by Ren Sen Zeng of the South China Agricultural University found that this interconnectivity also allows for plants to warn one another of potential harm. Sources Fleming, Nic. Harley, J.
What Plants Talk About ~ Full Episode | Nature availab Plants Talk AboutA world where plants communicate, co-operate and, sometimes, wage all-out war.2013-04-03 20:00:00publishdisabledshowfalse8234Dodder Vine Sniffs Out Its PreyThe parasitic dodder vine "sniffs" out plants from which it can draw nutrients. 20:00: Self-DefenseTo protect against herbivores, wild tobacco plants deposit sweet but deadly secretions. 20:00: How Plants Help Each Other Grow By Near-Telepathic Communication Michael Forrester, Prevent DiseaseWaking Times Plants have scientifically been show to draw alternative sources of energy from other plants. Plants influence each other in many ways and they communicate through “nanomechanical oscillations” vibrations on the tiniest atomic or molecular scale or as close as you can get to telepathic communication. Members of Professor Dr. Olaf Kruse’s biological research team have previously shown that green algae not only engages in photosynthesis, but also has an alternative source of energy: it can draw it from other plants. His research findings were released in the online journal Nature Communications. Other research published last year, showed that young corn roots made clicking sounds, and that when suspended in water they would lean towards sounds made in the same frequency range (about 220 Hz). Germination rates were fairly low when the seeds were grown on their own, lower when grown in the presence of fennel (as expected). What Can Humans Learn?
Earth's Internet & Natural Networking: Mycorrhizal Fungi run the Largest Mining Operation in the World Up to 85% of plants depend on fungi to survive. Plants and fungi depend on each other for nutrient cycling and water absorption "If you sift the mineral particles from conifer forest soil, wash them, and examine them under a microscope, you will discover a startling detail: tiny tunnels, three to ten micrometers across" "The tunnels curve and branch and sometimes more than one pierces the same particle. Jennifer Frazer There was a nicely done article which came out on the journal Scientific American by science writer, Jennifer Frazer, who has degrees in biology, plant pathology and Mycology. "The tunnels seem like they were made by something … alive. She then provided another beautiful illustration of something that the average person can actually see feel and touch. "But why would a fungus tunnel into a rock? "There is a precedent: lichens. Sure enough. "But the shafts in the photos at the top of the page were found nowhere near a lichen or a boulder. "Fungal mining has many advantages.
16 Of The Most Magnificent Trees In The World How do I love thee, tree? Let me count the ways; you change carbon dioxide into the oxygen we breathe, you sequester carbon, and you provide shelter for countless critters. There are many reasons for which we should all be tree-hugging hippies, but within the scope of this article, all we’ll focus on is how amazing some of them look. Granted, not all of these amazing beautiful trees are trees (the Wisteria is a vine, Rhododendrons are shrubs, and bamboo technically belongs to the grass family), but we’ll give them a pass because they are amazing, huge and beautiful. So once you step outside and take a breath of fresh air, hug the nearest tree and say thank you! If you know of an amazing tree not on this list, you can submit it at the bottom of this post. 125+ Year Old Rhododendron “Tree” In Canada This huge 125-year-oldold rhododendron is technically not a tree – most are considered to be shrubs. 144-Year-Old Wisteria In Japan Image credits: tungnam.com.hk Wind-Swept Trees In New Zealand
Plants Exhibit The Same Senses As Humans And See, Touch, Smell, Hear and Even Taste By: Daniel Chamovitz, Director of the Manna Center for Plant Biosciences at Tel Aviv University In Israel, Guest Contributor Have you ever wondered what the grass under your feet feels, what an apple tree smells, or a marigold sees? Plants stimulate our senses constantly, but most of us never consider them as sensory beings too. In fact senses are extremely important to plants. Whatever life throws at them, they remain rooted to the spot – they cannot migrate in search of food, escape a swarm of locusts or find shelter from a storm. Plants have scientifically been show to draw alternative sources of energy from other plants. What do plants see? Studies have shown that plants bend to the light as if hungry for the sun’s rays, which is exactly what they are. We now know they do this using phototropins – light receptors in the membranes of cells in the plant’s tip. Plants see red light using receptors in their leaves called phytochromes. Plants live in a very tactile world. Source: