American Research Products
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Con sede nel Massachusetts, dal 1994 American Research Products (ARP) fornisce prodotti di alta qualità ai laboratori di ricerca di ospedali, università e aziende biotecnologiche di tutto il mondo. ARP fornisce anticorpi monoclonali e policlonali, nonché antigeni purificati e ricombinanti per la ricerca. Il catalogo di prodotti per la diagnostica comprende prodotti per la rilevazione di citochine e fattori di crescita, malattie infettive / TORCH e malattie autoimmuni, metabolismo osseo e minerale, marcatori cardiaci, catecolamine e bioamine, test per la riproduzione e la fertilità, marcatori tumorali, steroidi, nonché prodotti per l'endocrinologia e la neurologia. Sito web: www.arp1.com
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![Plant Growth Regulators - Auxins](https://www.clinisciences.com/it/upload/thumbs/auxin-w52wtg-be0ee1.jpeg)
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.