hornwort roots - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 9 Old 02-26-2012, 12:53 PM Thread Starter
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hornwort roots

no iv read a couple different places that say hornwort is unique in it doesnt grow roots, making it a near perfect floating plant. now when i started with it in my tanks i had planted it like any other plant. i did a little bit of re-landscaping the other night and came across amazing roots coming from my hornwort. can anyone explain? or am i just that amazing? ;D haha
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post #2 of 9 Old 02-26-2012, 01:19 PM
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I believe those are what botanists term rhizoids. Kasselmann writes that this plant, Ceratophyllum demersum, is a free-floating plant under the water surface, rootless or anchored to the substrate with rhizoids. The Biology-Online site defines rhizoids thus:

Rhizoids are a structure in plants and fungi that functions like a root in support or absorption.
In fungi, rhizoids are small branching hyphae that grow downwards from the stolons that anchor the fungus. They release digestive enzymes and absorb digested organic material.
In land plants, rhizoids are trichomes that anchor the plant to the ground. In the liverworts, they are absent or unicellular, but multicelled in mosses. In vascular plants they are often called root hairs, and may be unicellular or multicellular.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #3 of 9 Old 02-26-2012, 01:48 PM
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I've been trying to get my hornwort to form a rhizome. How long did you have it planted before you found the rhizome, Iriving?

---Izzy

Sitting by the koi pond

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post #4 of 9 Old 02-26-2012, 03:33 PM Thread Starter
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About 2 weeks or so. I have another in my 55 that hasn't started this. I was using gravel in this tank and it was pretty well attached around. I just started using sand so I'm interested in seeing how it works on now. I can't even lie, I boarder line neglected this tank once I got this plant. Didn't really clean the gravel much. I was amazed when I found it like this. I actually figured it would die, as the hornwort Iv gotten from Petco has
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post #5 of 9 Old 02-26-2012, 05:50 PM
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I guess I'll keep trying with mine. I've had it in my 55 gal for a few months now, and I've never gotten a rhizome to develop. Thanks for the info and picture. I've always heard hornwort can develop a rhizome, but I'd never seen pictures. Good to know what I'm looking for.

Rhizoid... my bad

---Izzy

Sitting by the koi pond

writings on fish and fishkeeping



Last edited by thekoimaiden; 02-26-2012 at 06:01 PM. Reason: Opps!
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post #6 of 9 Old 02-26-2012, 05:54 PM
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Just a note--it isn't a rhizome, it is rhizoids on this plant, quite a different thing.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #7 of 9 Old 02-26-2012, 06:35 PM
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I anchor my Hornwort in the gravel and I have pulled some up and all I had was brown leaves under the substrate. Perhaps with a finer and more plant friendly substrate the rhizoids form.
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post #8 of 9 Old 02-26-2012, 09:39 PM Thread Starter
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I wish I had taken pix as I pulled it out. It's just normal aquarium gravel from Petco. Nothing special. Actually thought it wasnt going to do well with my plants.
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post #9 of 9 Old 02-26-2012, 09:43 PM
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Looks more like myrio filigree to me
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