[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Nutrient limitation
- To: Aquatic-Plants at actwin_com (Aquatic-Plants)
- Subject: Re: Nutrient limitation
- From: "David W. Webb" <dwebb at ti_com>
- Date: Wed, 10 Dec 1997 15:19:27 -0600
- Conversation-Id: <BMSMTP8817884439a0206807 at dsks52_itg.ti.com>
>Date: Wed, 10 Dec 1997 11:48:06 -0500
>From: krandall at world_std.com
>
>If we _are_ talking about cyanobacteria, then yes, many of them can fix
>nitrogen. I don't think you'll get any argument. But they do not then
>make that nitrogen available to higher plants in any meaningful way.
>(except Azolla, which I mentioned before)
I've found that cyanobacteria do contribute organic nitrogen to the system.
The process involves the cyanobacteria rapidly consuming nutrients until
they become nutrient limited in some way other than nitrogen. At this
point, they begin to die off and decay, contributing their nutrients back
to the system.
--
David W. Webb Texas Instruments
(972) 575-3443 (voice) http://www.dallas.net/~dwebb
(214) 581-2380 (pager) 2145812380 at alphapage_airtouch.com