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The best-characterized auxin receptors are the TIR1/ AFB family of F-box proteins. F-box proteins target other proteins for degradation via the ubiquitin degradation pathway . When TIR1/ AFB proteins bind to auxin, the auxin molecule acts as a ' molecular glue ', a term coined by Ning Zheng , that allows these proteins to then bind to their ...
Most commonly they are commercially available as "rooting hormone powder". The propagation of plants by cuttings of fully developed leaves, stems, or roots is performed by gardeners utilizing auxin as a rooting compound applied to the cut surface; the auxins are taken into the plant and promote root initiation.
Indole-3-acetic acid (IAA, 3-IAA) is the most common naturally occurring plant hormone of the auxin class. It is the best known of the auxins, and has been the subject of extensive studies by plant physiologists. [1] IAA is a derivative of indole, containing a carboxymethyl substituent. It is a colorless solid that is soluble in polar organic ...
NAA is a synthetic plant hormone in the auxin family and is an ingredient in many commercial horticultural products; it is a rooting agent and used for the vegetative propagation of plants from stem and leaf cuttings. It is also used for plant tissue culture. [2]
Dip the cut end of the stem into rooting hormone. Fill a container with well-draining potting soil. Choose a container that's big enough to hold the cutting and has a drainage hole on the bottom.
In propagation of detached succulent leaves and leaf cuttings, the root primordia typically emerges from the basal callous tissue after the leaf primordia emerges. [ 5 ] It was known as early as 1935 that when indolyl-3-acetic acid (IAA), also known as auxin , is applied to the stem of root cuttings, there is an increase in the average number ...
Optional: Dip the cut end in rooting hormone powder to stimulate growth. Place the cutting into a pot with well-draining soil. Water thoroughly, and place the pot in a warm, sunny location.
Propagation from softwood cuttings is reputedly easy; taken in mid-May, treated with a 3000 ppm IBA rooting hormone and placed under mist, < 95% should root in less than four weeks. However, commercial propagation is commonly by grafting onto a Siberian Elm Ulmus pumila rootstock. As height increase can rapidly outstrip stem width, lopping the ...
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