These are organized by a classification scheme developed exclusively for Cosma. More…
plant : any of a kingdom (Plantae) of multicellular eukaryotic mostly photosynthetic organisms typically lacking locomotive movement or obvious nervous or sensory organs and possessing cellulose cell walls — Webster
Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae. The term is today generally limited to the green plants, which form an unranked clade Viridiplantae (Latin for “green plants”). This includes the flowering plants, conifers and other gymnosperms, ferns, clubmosses, hornworts, liverworts, mosses and the green algae, and excludes the red and brown algae. Historically, plants formed one of two kingdoms covering all living things that were not animals, and both algae and fungi were treated as plants; however all current definitions of “plant” exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria).
Green plants have cell walls containing cellulose and obtain most of their energy from sunlight via photosynthesis by primary chloroplasts, derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic and have lost the ability to produce normal amounts of chlorophyll or to photosynthesize. Plants are characterized by sexual reproduction and alternation of generations, although asexual reproduction is also common. — Wikipedia
Botany News -- ScienceDaily Botany news. Read about the latest research on experimental crops, dramatic changes in forest growth, ancient flowering plants and more.
Agriculture: Quick soil test aims to determine...
on July 18, 2018 at 12:22 pm
One of the essential nutrients for vigorous crop production is nitrogen. Yet most routine tests done in commercial soil testing labs do not measure available nitrogen in the soil. Soil scientists think they have found a solution. […]
5,000 percent increase in native trees on...
on July 17, 2018 at 6:25 pm
New research demonstrates dramatic positive benefits for native trees following rat removal at Palmyra Atoll, a magnificent National Wildlife Refuge and natural research laboratory located about 1000 miles south of Hawaii. For five native tree species, including Pisonia grandis, fewer than 150 seedlings were counted in the presence of rats, and more than 7700 seedlings were counted five years after rats were removed. […]
Sap-sucking bugs manipulate their host plants'...
on July 17, 2018 at 6:25 pm
Researchers have shown for the first time that free-living, sap-sucking bugs can manipulate the metabolism of their host plants to create stable, nutritious feeding sites. […]
Plant mothers 'talk' to their embryos via the...
on July 16, 2018 at 7:15 pm
In plants, it has been clear for a while that maternal signals regulate embryo development. However, the signal itself was unknown -- until now. Plant scientists have now found that a plant hormone called auxin from the mother is one of the signals that pattern the plant embryo. […]
Bacteria engineered to create fertilizer out of...
on July 16, 2018 at 6:59 pm
Researchers have created a bacteria that uses photosynthesis to create oxygen during the day, and at night, uses nitrogen to create chlorophyll for photosynthesis. This development could lead to plants that do the same, eliminating the use of some -- or possibly all -- human-made fertilizer, which has a high environmental cost. […]