Any of a group of organic compounds, such as spermine and spermidine, composed of only carbon, nitrogen, and hydrogen and containing two or more amino groups

Small, ubiquitous, nitrogenous cellular compounds that implicated in stress responses of plants. It accumulates under several abiotic stress conditions including drought and salt Quantitative Trait Loci (QTL) a polymorphic locus which contains alleles that differentially affect the expression of a continuously distributed phenotypic trait. Usually it is a marker described by statistical association to quantitative variation in the particular phenotypic trait that is controlled by the cumulative action of alleles at multiple loci Stoma a minute epidermal pore in a leaf or stem, an opening between two guard cells

The polyamines are organic compounds having two or more primary amino groups - such as putrescine, cadaverine, spermidine, and spermine - that are growth factors in both eucaryotic and procaryotic cells. Though it is seen that polyamines are synthesized in cells via highly-regulated pathways, their actual function is not entirely clear. As cations, they do bind to DNA, and, in structure, they represent compounds with cations that are found at regularly-spaced intervals (unlike, say, Mg++ or Ca++, which are point charges).

A chemical with more than one amine group; the polyamine site on the NMDA receptor will bind with several polyamines.