ic potential? Help!
- Original Message -
From: Martin Meiss
To: Wayne Tyson
Cc: ECOLOG-L@listserv.umd.edu
Sent: Wednesday, April 20, 2011 10:31 AM
Subject: Re: [ECOLOG-L] where do edible plants retain lead and other
contaminants?
Wayne,
Your comment on min
too. I trust my own ignorance more than that of agribusiness, but
> that's far from perfect.
>
> WT
>
>
> - Original Message ----- From: "malcolm McCallum" <
> malcolm.mccal...@herpconbio.org>
>
> To:
> Sent: Saturday, April 16, 2011 7:10
"malcolm McCallum"
To:
Sent: Saturday, April 16, 2011 7:10 AM
Subject: Re: [ECOLOG-L] where do edible plants retain lead and other
contaminants?
Wayne brings up a good point.
The bioavailability of toxic compounds, including metals is affected
by many things among which pH can be
? Is something going on in the rhizosphere that evades some
> analytical procedures?
>
> WT
>
>
> - Original Message - From: "Martin Meiss"
> To:
> Sent: Friday, April 15, 2011 9:04 AM
> Subject: Re: [ECOLOG-L] where do edible plants retain lead and other
> contamina
WT
- Original Message -
From: "Martin Meiss"
To:
Sent: Friday, April 15, 2011 9:04 AM
Subject: Re: [ECOLOG-L] where do edible plants retain lead and other
contaminants?
A long time ago, when I was learning about plant ecotypes, I heard of
research on the adaptation of
A long time ago, when I was learning about plant ecotypes, I heard of
research on the adaptation of plants to high lead levels found in piles of
mine tailings. If I remember correctly, local races of plants were forming
that were able to adapt to toxic soils. This raises these questions: if
Hi Ben,
In general you are unlikely to find lead in the shoots of plants, because it
is not very soluble and most plants exclude heavy metals. The edible plants
that may have Pb would likely be leafy vegetables (grown close to the
ground) and root vegetables (as mentioned earlier) because of the a
Just like animals, plants accumulate metals and similar toxins
throughout depending on the metal. Many things are accumulated in the
roots, but also elsewhere. For example, in an unpublished study we
were doing on an oxbow lake adjacent to the Red River we found
Chromium and several other metals
>From the University of Minnesota Extension Service:
http://www.extension.umn.edu/distribution/horticulture/DG2543.html
Might be a bit better than "I have been told ."
mcneely
Ben Bowman wrote:
> I am looking for information about where different types of plants absorb and
> re
Most plants put and store most of the metals in their roots. But the
percentage varies and you would have to look it up for particular species
and a particular metal. So plants where roots are eaten would not be
advised, but usually there would be much less in the stems, leaves or
fruits.
> I am
I am looking for information about where different types of plants absorb and
retain heavy metals and other toxins.
I would like to compile a list of edible plants that are safe to propagate and
consume despite soil contamination. This could include plants that absorb
toxins but deposit them in
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