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Aminophosphonic Analogues and Herbicides

Discussion of the distribution and abundance of living organisms and how these properties are affected by interactions between the organisms and their environment

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Aminophosphonic Analogues and Herbicides

Postby plasmodesmata11 » Tue Jan 20, 2009 12:16 am

I was talking to a man who belongs to the Nature Conservancy, and for a project he wants to remove the plants Japanese Barberry and Oriental Bittersweet from a site. I live in New England, and here they are invasive.
I know basics about the plant and its removal, but he was wondering how to treat them (herbicidaly). I looked around, and the active ingredient I found that worked well and was present in many products was glyphosate. Because this is an organization that wishes to help the environment, I wanted to make sure glyphosate was not going to have any detrimental effects....... (I know to watch out for diquat and paraquat, which are commonly mixed in)
I found out that glyphosate is an aminophosphonic analogue of glycine. First question: How is it different? Is there a phosphate group added onto it? What does being an aminophosphonic analogue entail?Now, the analogues act as antimetabolites, which interefere, at least in this case, with the production of the plant's amino acids. They compete with normal substrates at the active site, denaturing the enzyme, and making it useless for its original purpose. So here lies my second question: Is there a substrate that is non-competitive to do this same thing OR are there even allosteric sites on such enzymes?Many thanks...............
(And I realized glyphosate was not that dangerous to animals, and since it needed direct application, not to other plants, either)
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Postby canalon » Sat Jan 24, 2009 4:06 pm

Monsanto is the manufacturer of glyphostae, sold under the trade name of Round-up.

I cannot answer your questions, but I am pretty sure that there is quite a lot of litterature on the subject since resistance mecahnisms are used for GMO (Round-up Ready or RR seeds). Maybe you will find more using this keyword. As for innocuity, I would say that the jury is still out on the subject, and that most website are usually very biased (in either direction) and i sure do not know what is true. But If I remember even monsanto advise to avoid direct contact with the product and the treated plants for a few days after application.
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Re: Aminophosphonic Analogues and Herbicides

Postby Nina666 » Mon Aug 08, 2011 11:52 am

glyphosate-sesquisodium is patented by Monsanto and glyphosate-trimesium patented by Zeneca. it is, by the way, the most frequent cause of complaints and poisoning incidents
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