Quote:
Originally Posted by HoaNui
Auxins, I have been told, have to be handled with care as they are suspected of causing, or do cause, cancer.
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HuaNui, I believe you have confused two Auxins.
IBA (3-Indole Butyric Acid ) is commonly used in root stimulants. Its use on edible crops is outlawed. For example, check out most jars of "rooting gel" and you'll find (a) they contain IAB and (b)
there is a warning label not to use on plants grown for human consumption. It has been linked to cancer in mammals.
IAA (Indole-3-acetic acid) is a plant growth regulator. It is commonly used to reduce inter-node lengths on shoots; i.e., produce more compact plants. Repeated studies have shown that it is
not carcinogenic -- in fact it is the study of anti-cancer research. For example:
http://ostein.com.ne.kr/pubs/FEBS.pdf