Trichomes are fine outgrowths or appendages on plants, algae, lichens, and certain protists. They are of diverse structure and function. Examples are hairs, glandular hairs, scales, and papillae. A covering of any kind of hair on a plant is an indumentum, and the surface bearing them is said to be pubescent.
In botany and agriculture, stunting describes a plant disease that results in dwarfing and loss of vigor. It may be caused by infectious or noninfectious means. Stunted growth can affect foliage and crop yields, as well as eating quality in edible plants. Stunted growth can be prevented through controlling quality of seeds, soil, and proper watering practices.
Phytoremediation technologies use living plants to clean up soil, air and water contaminated with hazardous contaminants. It is defined as "the use of green plants and the associated microorganisms, along with proper soil amendments and agronomic techniques to either contain, remove or render toxic environmental contaminants harmless". The term is an amalgam of the Greek phyto (plant) and Latin remedium. Although attractive for its cost, phytoremediation has not been demonstrated to redress any significant environmental challenge to the extent that contaminated space has been reclaimed.
Glabrousness is the technical term for a lack of hair, down, setae, trichomes or other such covering. A glabrous surface may be a natural characteristic of all or part of a plant or animal, or be due to loss because of a physical condition, such as alopecia universalis in humans, which causes hair to fall out or not regrow.
Orthosilicic acid is an inorganic compound with the formula Si(OH)4. Although rarely observed, it is the key compound of silica and silicates and the precursor to other silicic acids [H2xSiOx+2]n. Silicic acids play important roles in biomineralization and technology.
Stearidonic acid (SDA: C18H28O2; 18:4, n-3) is an ω-3 fatty acid, sometimes called moroctic acid. It is biosynthesized from alpha-linolenic acid (ALA: C18H30O2; 18:3, n-3) by the enzyme delta-6-desaturase, that removes two hydrogen (H) atoms from a fatty acid, creating a carbon/carbon double bonding, via an oxygen requiring unsaturation. SDA also act as precursor for the rapid synthesis of longer chain fatty acids, called N-acylethanolamine (NAEs), involved in many important biological processes. Natural sources of this fatty acid are the seed oils of hemp, blackcurrant, corn gromwell, and Echium plantagineum, and the cyanobacterium Spirulina. SDA can also be synthesized in a lab. A GMO soybean source is approved by the European Food Safety Authority.
A hyperaccumulator is a plant capable of growing in soil or water with high concentrations of metals, absorbing these metals through their roots, and concentrating extremely high levels of metals in their tissues. The metals are concentrated at levels that are toxic to closely related species not adapted to growing on the metalliferous soils. Compared to non-hyperaccumulating species, hyperaccumulator roots extract the metal from the soil at a higher rate, transfer it more quickly to their shoots, and store large amounts in leaves and roots. The ability to hyperaccumulate toxic metals compared to related species has been shown to be due to differential gene expression and regulation of the same genes in both plants.
1-Pyrroline-5-carboxylic acid is a cyclic imino acid. Its conjugate base and anion is 1-pyrroline-5-carboxylate (P5C). In solution, P5C is in spontaneous equilibrium with glutamate-5-semialdhyde (GSA).
Cochliobolus tuberculatus is a plant pathogen.
Urceolina dodsonii, formerly known as Eucrosia dodsonii, is a species of plant that is endemic to Ecuador. Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat loss.
Pamianthe is a genus of South American bulbous perennials in the Amaryllis family, subfamily Amaryllidoideae. They can be found in sandy, but rocky areas in Colombia, Ecuador, Peru, and Bolivia.
Apiforol is a chemical compound belonging to the flavan-4ol class of flavonoids.
Delftia lacustris is a Gram-negative, nonfermentative, motile, rod-shaped bacterium from the family Comamonadaceae, which was isolated from mesotrophic lake water in Denmark. It has the ability to degrade peptidoglycan through chitinase and lysozyme activity.
Solanum commersonii is a species of wild potato in the family Solanaceae. It is native to southern Brazil, Uruguay, and northeastern Argentina, and has been introduced to Mauritius. It is a crop wild relative useful in potato breeding for its resistance to root knot nematode, soft rot, blackleg, bacterial wilt, verticillium wilt, Potato virus X, tobacco etch virus, common scab, and late blight, and for its frost tolerance and ability to cold acclimate.
Funneliformis mosseae is a species of fungus in the family Glomeraceae, which is an arbuscular mycorrhizal (AM) fungi that forms symbiotic relationships with plant roots. Funneliformis mosseae has a wide distribution worldwide, and can be found in North America, South America, Europe, Africa, Asia and Australia. Funneliformis are characterized by having an easily visible septum in the area of the spore base and are often cylindrical or funnel-shaped. Funneliformis mosseae similarly resembles Glomus caledonium, however the spore wall of Funneliformis mosseae contains three layers, whereas Gl. caledonium spore walls are composed of four layers. Funneliformis is an easily cultivated species which multiplies well in trap culture, along with its high distribution, F. mosseae is not considered endangered and is often used for experimental purposes when combined with another host.
Tripartite symbiosis is a type of symbiosis involving three species. This can include any combination of plants, animals, fungi, bacteria, or archaea, often in interkingdom symbiosis.
Akebia chingshuiensis is a member of the Akebia family native to China. It is a rarer species of Akebia and has a smaller range than Akebia trifoliata or Akebia quinata.
Stenomesson korsakoffii is a species of plant in the family Amaryllidaceae native to Peru. It was formerly known as Caliphruria korsakoffii and Urceolina korsakoffii, but a 2020 molecular phylogenetic study indicates that this species is sister to the other species of Stenomesson.
