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Chloromethane, also called methyl chloride, Refrigerant-40, R-40 or HCC 40, is an organic compound with the chemical formula CH 3 Cl. One of the haloalkanes , it is a colorless, sweet-smelling, flammable gas.
Some organochlorides are considered safe enough for consumption in foods and medicines. For example, peas and broad beans contain the natural chlorinated plant hormone 4-chloroindole-3-acetic acid (4-Cl-IAA); [15] [16] and the sweetener sucralose (Splenda) is widely used in diet products.
The isotopic signature of C 3 plants shows higher degree of 13 C depletion than the C 4 plants, due to variation in fractionation of carbon isotopes in oxygenic photosynthesis across plant types. Specifically, C 3 plants do not have PEP carboxylase like C 4 plants, allowing them to only utilize ribulose-1,5-bisphosphate carboxylase (Rubisco) to ...
Several million tons of chlorinated methanes are produced annually. Chloromethane is a precursor to chlorosilanes and silicones. Chlorodifluoromethane (CHClF 2) is used to make teflon. [7] Alkyl bromides Large scale applications of alkyl bromides exploit their toxicity, which also limits their usefulness.
Chloromethane and bromomethane are used to introduce methyl groups in organic synthesis. Chlorodifluoromethane is the main precursor of tetrafluoroethylene , which is the monomeric precursor to Teflon .
An image of multiple chromosomes, taken from many cells. Plant genetics is the study of genes, genetic variation, and heredity specifically in plants. [1] [2] It is generally considered a field of biology and botany, but intersects frequently with many other life sciences and is strongly linked with the study of information systems.
Engvild hypothesized in 1996 that 4-Cl-IAA may be a "death hormone" that maturing seeds use to trigger death of the parent plant by mobilizing nutrients to be stored in the seed. [ 8 ] Lam et al found the substance in the seeds of Medicago truncatula , Melilotus indicus , and three species of Trifolium .
Plant embryonic development, also plant embryogenesis, is a process that occurs after the fertilization of an ovule to produce a fully developed plant embryo. This is a pertinent stage in the plant life cycle that is followed by dormancy and germination . [ 1 ]