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Mycorrhizal Bioremediation
Mycorrhizal amelioration of heavy metals or pollutants is a process by which mycorrhizal fungi in a mutualistic relationship with plants can sequester toxic compounds from the environment, as a form of bioremediation. Mycorrhizae-plant partners These symbiotic relationships are generally between plants and arbuscular mycorrhizae in the Glomeromycota clade of fungi. Other types of fungi have been documented. For example, there is a case where zinc phytoextraction from willows was increased after the Basidiomycete fungus ''Paxillus involutus'' was inoculated in the soil. Mechanisms of the symbiosis The mycorrhizae allow the plants to increase their biomass, which increases their tolerance to heavy metals. The fungi also stimulate the uptake of heavy metals (such as manganese and cadmium) with the enzymes and organic acids (such as acetic acid and malic acid) that they excrete into their surroundings in order to digest them. Mycorrhizae on plant toleration The fungi can preven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mycorrhizal
A mycorrhiza (; , mycorrhiza, or mycorrhizas) is a symbiotic association between a fungus and a plant. The term mycorrhiza refers to the role of the fungus in the plant's rhizosphere, the plant root system and its surroundings. Mycorrhizae play important roles in plant nutrition, soil biology, and soil chemistry. In a mycorrhizal association, the fungus colonizes the host plant's root tissues, either intracellularly as in arbuscular mycorrhizal fungi, or extracellularly as in ectomycorrhizal fungi. The association is normally mutualistic. In particular species, or in particular circumstances, mycorrhizae may have a parasitic association with host plants. Definition A mycorrhiza is a symbiotic association between a green plant and a fungus. The plant makes organic molecules by photosynthesis and supplies them to the fungus in the form of sugars or lipids, while the fungus supplies the plant with water and mineral nutrients, such as phosphorus, taken from the soil. Mycorrhiz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctostaphylos Uva-ursi
''Arctostaphylos uva-ursi'' is a plant species of the genus ''Arctostaphylos'' widely distributed across circumboreal regions of the subarctic Northern Hemisphere. Kinnikinnick (from the Unami language for "smoking mixture") is a common name in Canada and the United States. Growing up to in height, the leaves are evergreen. The flowers are white to pink and the fruit is a red berry. One of several related species referred to as bearberry, its specific epithet ''uva-ursi'' means "grape of the bear" in Latin, similar to the meaning of the generic epithet ''Arctostaphylos'' (Greek for "bear grapes"). Description ''Arctostaphylos uva-ursi'' is a small procumbent woody groundcover shrub growing to high. Wild stands of the species can be dense, with heights rarely taller than . Erect branching twigs emerge from long flexible prostrate stems, which are produced by single roots. The trailing stems will layer, sending out small roots periodically. The finely textured velvety branches ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minnesota
Minnesota ( ) is a U.S. state, state in the Upper Midwestern region of the United States. It is bordered by the Canadian provinces of Manitoba and Ontario to the north and east and by the U.S. states of Wisconsin to the east, Iowa to the south, and North Dakota and South Dakota to the west. It is the List of U.S. states and territories by area, 12th-largest U.S. state in area and the List of U.S. states and territories by population, 22nd-most populous, with about 5.8 million residents. Minnesota is known as the "Land of 10,000 Lakes"; it has 14,420 bodies of fresh water covering at least ten acres each. Roughly a third of the state is Forest cover by state and territory in the United States, forested. Much of the remainder is prairie and farmland. More than 60% of Minnesotans (about 3.71 million) live in the Minneapolis–Saint Paul metropolitan area, known as the "Twin Cities", which is Minnesota's main Politics of Minnesota, political, Economy of Minnesota, economic, and C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Paul, Minnesota
Saint Paul (often abbreviated St. Paul) is the List of capitals in the United States, capital city of the U.S. state of Minnesota and the county seat of Ramsey County, Minnesota, Ramsey County. As of the 2020 United States census, 2020 census, the city had a population of 311,527, making it Minnesota's List of cities in Minnesota, second-most populous city and the List of United States cities by population, 63rd-most populous in the United States. Saint Paul and neighboring Minneapolis form the core of the Minneapolis–Saint Paul, Twin Cities metropolitan area, the third most populous in the Midwestern United States, Midwest with around 3.7 million residents. The Minnesota State Capitol and the state government offices sit on a hill next to downtown Saint Paul overlooking a bend in the Mississippi River. Local cultural offerings include the Science Museum of Minnesota, the Ordway Center for the Performing Arts, and the Minnesota History Center. Three of the region's profession ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of Agriculture
The United States Department of Agriculture (USDA) is an executive department of the United States federal government that aims to meet the needs of commercial farming and livestock food production, promotes agricultural trade and production, works to assure food safety, protects natural resources, fosters rural communities and works to end hunger in the United States and internationally. It is headed by the secretary of agriculture, who reports directly to the president of the United States and is a member of the president's Cabinet. The current secretary is Brooke Rollins, who has served since February 13, 2025. Approximately 71% of the USDA's $213 billion budget goes towards nutrition assistance programs administered by the Food and Nutrition Service (FNS). The largest component of the FNS budget is the Supplemental Nutrition Assistance Program (formerly known as the 'Food Stamp' program), which is the cornerstone of USDA's nutrition assistance. The United Stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mel Chin
Mel Chin (born 1951 in Houston, Texas, USA) is a conceptual art, conceptual visual artist. Motivated largely by political, cultural, and social circumstances, Chin works in a variety of art media to calculate meaning in modern life. Chin places art in landscapes, in public spaces, and in gallery and museum exhibitions, but his work is not limited to specific venues. Chin once stated: “Making objects and marks is also about making possibilities, making choices—and that is one of the last freedoms we have. To provide that is one of the functions of art.”Ned Rifkin. ''Directions: Mel Chin, February 1- April 23, 1989''. Hishorn Museum and Sculpture Garden Brochure, 1989. His work may be found in the permanent collection of the National Gallery of Art in Washington, DC. Career 1970s-1980s In 1975, Chin graduated from Peabody College in Nashville, Tennessee. Shortly after, in 1976, Chin created ''See/Saw: The Earthworks'' for Hermann Park in Houston, Texas, where the artist man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karst
Karst () is a topography formed from the dissolution of soluble carbonate rocks such as limestone and Dolomite (rock), dolomite. It is characterized by features like poljes above and drainage systems with sinkholes and caves underground. There is some evidence that karst may occur in more weathering-resistant rocks such as quartzite given the right conditions. Subterranean drainage may limit surface water, with few to no rivers or lakes. In regions where the dissolved bedrock is covered (perhaps by debris) or confined by one or more superimposed non-soluble rock strata, distinctive karst features may occur only at subsurface levels and can be totally missing above ground. The study of ''paleokarst'' (buried karst in the stratigraphic column) is important in petroleum geology because as much as 50% of the world's Oil and gas reserves and resource quantification, hydrocarbon reserves are hosted in carbonate rock, and much of this is found in porous karst systems. Etymology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morus Alba
Morus may refer to: People * Alexander Morus (1616–1670), Franco-Scottish Protestant preacher * Henryk Moruś (1943–2013), Polish serial killer * Huw Morus (1622–1709), Welsh poet * Thomas More or Morus (1478–1535), English philosopher * Morus Clynnog (c. 1525–1581), Welsh Roman Catholic priest and recusant exile * Morus Dwyfach (fl. c. 1523–1590), Welsh-language poet * Morus Hasratyan (1902–1979), Armenian historian and philologist * Moors, ''Mōrus'' in late Latin, people of the Maghreb region Other uses * Morus (plant), ''Morus'' (plant), a genus of trees in the family Moraceae commonly known as mulberries * Morus (bird), ''Morus'' (bird), a genus of seabirds in the family Sulidae commonly known as gannets * Moros, the personified spirit of impending doom in Greek mythology * Latin for morula, an early-stage embryo consisting of 16 cells * Museum of Reclaimed Urban Space See also * Moris (other) {{disambig, given name, surname Genus disambiguation pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calciphilopteris
''Calciphilopteris'' is a genus of ferns in the family Pteridaceae. It is native to India and China, southward to Australia.Jovita C. Yesilyurt and Harald Schneider. 2010. "The new fern genus ''Calciphilopteris'' (Pteridaceae)". ''Phytotaxa'' 7:52-59. (See ''External links'' below). Its four species grow in crevices in limestone or they cling to the rock itself. Taxonomy For a long time, the four species of ''Calciphilopteris'' were included in the polyphyletic genus ''Doryopteris''. Molecular phylogenetic studies have shown that ''Calciphilopteris'' is the most basal clade in the subfamily Cheilanthoideae. It is thus far removed from ''Doryopteris palmata'', the type species of ''Doryopteris''. ''Calciphilopteris'' was described as a new genus in 2010. The generic name is said to be derived from the Greek ''calx'' (limestone), ''philus'' (loving), and ''pteris'' (fern). ''Kalx'' can not be found in ancient Greek, however ''calx'' is the Latin word for "limestone",Lewis, C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithophyte
Lithophytes are plants that grow in or on rocks. They can be classified as either epilithic (or epipetric) or endolithic; epilithic lithophytes grow on the surfaces of rocks, while endolithic lithophytes grow in the crevices of rocks (and are also referred to as chasmophytes). Lithophytes can also be classified as being either obligate or facultative. Obligate lithophytes grow solely on rocks, while facultative lithophytes will grow partially on a rock and on another substrate simultaneously. Nutrients Lithophytes that grow on land feed off nutrients from rain water and nearby decaying plants, including their own dead tissue. It is easier for chasmophytes to acquire nutrients because they grow in fissures in rocks where soil or organic matter has accumulated. For most lithophytes, nitrogen is only available through interactions with the atmosphere. The most readily available form of nitrogen in the atmosphere is the gaseous state of ammonia (NH3). Lithophytes consume atmospheric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xerophyte
A xerophyte () is a species of plant that has adaptations to survive in an environment with little liquid water. Examples of xerophytes include cacti, pineapple and some gymnosperm plants. The morphology and physiology of xerophytes are adapted to conserve water during dry periods. Some species called resurrection plants can survive long periods of extreme dryness or desiccation of their tissues, during which their metabolic activity may effectively shut down. Plants with such morphological and physiological adaptations are said to be .” Xeromorphic”, The Cambridge Illustrated Glossary of Botanical Terms, Michael Hickey, Clive King, Cambridge University Press, 2001 Xerophytes such as cacti are capable of withstanding extended periods of dry conditions as they have deep-spreading roots and capacity to store water. Their waxy, thorny leaves prevent loss of moisture. Introduction Plants absorb water from the soil, which then evaporates from their shoots and leaves; this process i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desertification
Desertification is a type of gradual land degradation of Soil fertility, fertile land into arid desert due to a combination of natural processes and human activities. The immediate cause of desertification is the loss of most vegetation. This is driven by a number of factors, alone or in combination, such as drought, climatic shifts, tillage for agriculture, overgrazing and deforestation for fuel or construction materials. Though vegetation plays a major role in determining the Soil biology, biological composition of the soil, studies have shown that, in many environments, the rate of erosion and runoff decreases exponentially with increased vegetation cover. Unprotected, dry soil surfaces blow away with the wind or are washed away by flash floods, leaving infertile lower soil layers that bake in the sun and become an unproductive hardpan. At least 90% of the inhabitants of drylands live in Developing country, developing countries, where they also suffer from poor economic and s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
