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A hydroxide ion acting as a nucleophile in an S N 2 reaction, converting a haloalkane into an alcohol. In chemistry, a nucleophile is a chemical species that forms bonds by donating an electron pair. All molecules and ions with a free pair of electrons or at least one pi bond can act as nucleophiles. Because nucleophiles donate electrons, they ...
The clan contains both cysteine and serine proteases (different nucleophiles). [1] [2] PA clan proteases can be found in plants, [3] animals, [3] fungi, [3] eubacteria, [4] archaea [5] [6] and viruses. [2] The common use of the catalytic triad for hydrolysis by multiple clans of proteases, including the PA clan, represents an example of ...
This list may not reflect recent changes. (previous page) A. List of Abuta species; List of Acacia species ... List of Eremophila (plant) species; List of Erica species;
Many of these plants are listed in Stearn's Dictionary of Plant Names for Gardeners. William Stearn (1911–2001) was one of the pre-eminent British botanists of the 20th century: a Librarian of the Royal Horticultural Society , a president of the Linnean Society and the original drafter of the International Code of Nomenclature for Cultivated ...
annual: a plant species that completes its life cycle within a single year or growing season; basal: attached close to the base (of a plant or an evolutionary tree diagram) climber: a vine that leans on, twines around or clings to other plants for vertical support; deciduous: falling seasonally, as with bark, leaves or petals
The lists of cultivars in the table below are indices of plant cultivars, varieties, and strains. A cultivar is a plant that is selected for desirable characteristics that can be maintained by propagation. The plants listed may be ornamental, medicinal, and/or edible. Several of them bear edible fruit.
This is a list of plants organized by their common names. However, the common names of plants often vary from region to region, which is why most plant encyclopedias refer to plants using their scientific names , in other words using binomials or "Latin" names.
What characterizes an actinorhizal plant is the symbiotic relationship it forms with the bacteria Frankia, [9] in which they infect the roots of the plant. This relationship is what is responsible for the nitrogen-fixation qualities of the plants, and what makes them important to nitrogen-poor environments. [10]