American Research Products
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American Research Products (ARP) is gevestigd in Massachusetts en levert sinds 1994 hoogwaardige producten aan onderzoekslaboratoria in ziekenhuizen, universiteiten en biotechnologiebedrijven over de hele wereld. ARP levert monoklonale en polyklonale antilichamen en gezuiverde en recombinante antigenen voor onderzoek. De productcatalogus voor diagnostiek omvat producten voor de detectie van cytokinen en groeifactoren, infectieziekten / TORCH en auto-immuunziekten, bot- en mineraalmetabolisme, hartmarkers, catecholaminen en bioamines, voortplantings- en vruchtbaarheidstests, tumormarkers, steroïden evenals producten voor endocrinologie, neurologie. Website: www.arp1.com
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Plant Growth Regulators - Auxins
Auxins were the first growth hormones to be discovered. Auxins are a class of plant hormones (or plant-growth regulators) derived from the amino acid tryptophan. Plants produce natural auxins such as Indole-3-acetic acid (IAA) and Indole butyric acid (IBA). Natural auxins are found in growing stems and roots from where they migrate to their site of action. Naphthalene acetic acid (NAA) and 2, 4-dichlorophenoxyacetic (2, 4-D) are examples of synthetic auxins.
Auxins are found in shoot and root tips and promote cell division, stem and root growth. They can also drastically affect plant orientation by promoting cell division to one side of the plant in response to sunlight and gravity, named phototropism. Auxins in the flower promote maturation of the ovary wall and promote steps in the full development of the fruit.
