Common Mycorrhizal Network in the Forest Ecosystem

545 Words2 Pages
bulb-icon

Recommended: Mycorrhizas

The amount of fungal biomass in the boreal forest soil is estimated to around 900 kg ha−1 (Wallander et al., 2001). Considering this quantity of fungal mycelia in the soil, it is easily possible that the whole forest ecosystem might be interconnected by a fungal web called common mycorrhizal network (CMN) (Peter, 2006; Lekberg et al., 2010). The simplest CMN structure consists of one or more mycorrhizal fungi that connect at least two plant root systems. Another possibility is when the fungal hyphae fuse togeather and connect the root systems of their host plants. The two main types of CMNs are AM networks typical for grassland ecosystems and agroecosystems (Helgason et al., 1998), which can originate from the mycorrhizal hyphal fuses and EcM networks typical for forest ecosystems (Selosse et al., 2006). An example, which supports the fascinating theory of wood-wide-web, is the study (Beiler et al., 2010) where was shown, that a single tree root system might be linked with 37 other trees by the EcM mycelial connection (Fig. 3). From this point of view might be the whole forest a sing...

Show More
Related

  • Study of Co-Existence and Competition at Warren Woods

    933 Words  | 2 Pages

    Williams, A. B. (1936). The composition and dynamics of a beech-maple climax community. Ecological monographs, 6(3), 317-408.

    Read More

  • Chestnut Blight and American Chestnut Trees

    1242 Words  | 3 Pages

    The American chestnut which was once almost eliminated from existence in the late 1950's has once again emerged thanks to conservation efforts. Chestnut blight, a deadly fungus, has the ability to kill chestnut trees. However, some chestnut species in Asia have resistance to blight. As a result, a method of conservation has been through hybridizing American species with Asian species. Another method of conservation has been through hypovirulence strains in the infection is reduced. Independently, this hypovirulence method may be a reason why some American chestnuts are surviving despite being infested with chestnut blight. This issue remains important to both the timber industry, although that isn't why chestnuts are being restored, and certain ecological organizations including the Nature Conservancy.

    Read More

  • Lignocellulose Essay

    695 Words  | 2 Pages

    (Kumar et al., 2008a). Globally, 1.3  1010 metric tons of wood is produced by terrestrial

    Read More

  • Salvia divinorum, Herb of Mary, the Shepherdess

    1525 Words  | 4 Pages

    The cloud forests and tropical evergreen forests of the Sierra Mazateca mountain range provide the ideal conditions for S. divinorum growth. It lives in dark, humid areas at an elevation of between 300 and 1800 m. Propagation is vegetative, through rooting at the nodes of the l...

    Read More

  • Overview of the Sugar Pine

    1144 Words  | 3 Pages

    Sugar pines are found in a variety of places including moist, steep, north, east and south facing slopes. They tend to like deep, well drained soils that have a slight to neutral acidic level. While these trees can and do grow on steep and rugged land, the best growth occurs on gentle terrain at middle elevations in sandy to clay-like soils. These sugar pines grow from sea level up to a maximum of about 10,000 feet. The ele...

    Read More

  • Ecobottle Observation Paper

    540 Words  | 2 Pages

    Conclusion: As we began with just soil, the ecobottle was an example of a secondary succession where there was an ecosystem having to start over with only soil present. Initially we saw our pioneer species of grass begin to sprout up and our aquatic plant thrive. The aquatic plant grew continuously and helped algae begin to grow as succession continued and the chamber could support more and more life. The terrestrial chamber though quickly showed signs of a decrease in growth and then completely collapsed. I believe that this was because of a limiting nutrient which is a nutrient required for the growth of the grass but was available in a lower quantity than other nutrients so the grass began to die once all of that nutrient was used up. This nutrient could have a number of macronutrients that plants need large amount of like water or phosphorous but was likely nitrogen. Nitrogen is very common in the atmosphere, but needs to go through nitrogen fixation to be available to producers so it is often in limited

    Read More

  • The Biological Competitive Exclusion Principle

    1361 Words  | 3 Pages

    Many old-growth forests across the landscape of northern Lower Peninsula of Michigan contain a mixture of tree species rather than a monoculture. Many researchers have put forward ideas to explain the competition and co-existence of tree species in such communities. A theory explaining competition and co-existence between two species is gap regeneration. Gap regeneration is when a gap is created upon death of a plant individual and a new individual, sometimes of the same species as died and sometimes not dependent on environmental heterogeneity, takes its place (Kenneth Lertzman). Canopy gaps during gap regeneration can be explained by either reciprocal replacement or habitat preference . In a reciprocal replacement, seedlings of one species would be found predominately under large trees ...

    Read More

  • Essay On Everglades National Park

    903 Words  | 2 Pages

    The communities of various native plants have been significantly minimized as a result of ...

    Read More

  • Effects of Road Salt to the Environment

    750 Words  | 2 Pages

    Cary Institute of Ecosystem Systems, 2014. Web. The Web. The Web. 27 Feb 2014.

    Read More

  • Analysis Of Where The Red Fern Grows

    898 Words  | 2 Pages

    In the book, Where the Red Fern Grows, by Wilson Rawls, depicts an inspiring, young boy named Billy, who struggled with life’s complication. Billy was an ordinary boy who lived in the country. Although his family was not wealthy, he lived a content life. He grew up in the mountains of Ozarks in Oklahoma. The whole story took place years ago, perhaps in the mid 1900s. It was evident that Billy’s appreciation of the scenery of the environment around him proved that he loved the woods. As he grew up, he began to learn the complexity of life. Billy matures as he learns to accept suffering and to make sacrifices.

    Read More

  • How Temperature Affects Grove Organisms

    511 Words  | 2 Pages

    Temperature can determine the chemical reactions in metabolism. When temperature is high, chemical reaction will increase which will have more metabolic activities. In contrast, when temperature is low, metabolic activity will decrease. Metabolic level has an high impact on activity levels. Thus, temperature will affect C. nemorails’ activity level. As temperature increases C. nemoralis’ activity level will increase and as temperature decreases C. nemoralis’ activity level will decrease. However, C. nemorails cannot adapt to temperature above or below its tolerance temperature 8-22C or else they remain at rest or their activity levels will be relatively low.

    Read More

  • Effects of Wildfires on Forest Ecosystems

    1979 Words  | 4 Pages

    Perry, D. A. (1998). The Scientific Basis of Forestry, Annual Review of Ecology and System Thematic 29:435-466, Retrieved July 9, 2005 from: http://www.panda.org/about_wwf/what_we_do/policy/policy_and_events/index.cfm

    Read More

  • What Is Mustard (Brassica)?

    1404 Words  | 3 Pages

    Root colonization in this crop may vary from 28.53% to 46.53% at different places of district Chaheru village, while spore population ranged between 100 to 300 per gram of soil. Sixteen species of VAM fungi belonging to 4 different genera were identified. Among of these Alternaria-brassicae and Colletotrichum-gloeosporioids were mostly found in dominating and distributed in Root followed by Peronospora parasitica and Rhizoctonia solani were distributed mostly only in the Leaves.VAM fungi Acaulospora elegans and Acaulospora sporocarp were mostly found. Colonization per cent has paramount and positive correlation with the spore’s density. The Physicochemical properties of the soil especially pH, organic carbon, nitrogen, phosphorus and available potassium influence the population dynamics and colonization of VAM Mycorrhiza in mustard crops (Arpita et al.,

    Read More

  • Information on Deforestation

    1075 Words  | 3 Pages

    Thesis: Forests provide the earth with a regulated climate, strong biodiversity, and good nutrient rich soil for plants to strive on.

    Read More

  • Reflection On Microbiology

    877 Words  | 2 Pages

    Studies have shown that there are bacteria and fungi with certain strains that live in soil. When they are applied to the seeds, they can aid crops by invigorating plant growth or by decreasing the damage created from plant pathogens bred from the soil. Another example is the bacterial species, Mycorrhiza. It is a fungus, which is able to form a union with a majority of land plants. When this action occurs, that symbiotic relationship assists to increase uptake by the root system to about 90 percent. This in turn helps the plant take in water and nutrients from deep inside the soil. It also allows the activation of genes and physiological changes in the plant which helps them to survive drought circumstances. Other microbes are also able to lift a plant 's resistance to bugs. A larger focus on microorganisms colonizing our plants and sharing a symbiotic relationship with them would greatly improve yields and lessen the need for costly fertilizers and pesticides. Information such as this would be very useful for students in college who are interested in businesses such as

    Read More

More about Common Mycorrhizal Network in the Forest Ecosystem

Open Document