roots at mangrove swamp

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sultana
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18/03/2007 3:40:52 PM

Hi rabbit, here's something i found.
please let me know if this is what you are looking for.
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Taken from:
http://en.wikipedia.org/wiki/M...


Adaptations to low oxygen

Red mangroves, which can live in the most inundated areas, prop themselves up above the water level with stilt roots, and can then take in air through pores in their bark (lenticels). Black mangroves live on higher ground, and make many pneumatophores (specialised root-like structures which stick up out of the soil like straws for breathing) which are covered in lenticels. These "breathing tubes" typically reach heights of up to 30 centimeters, though some species have ones that reach over 3 meters high. There are four types of pneumatophore - stilt or prop type, snorkel or peg type, knee type and ribbon or plank type. Knee and ribbon types may be combined with buttress roots at the base of the tree. The roots also contain wide aerenchyma to facilitate oxygen transport within the plant.

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Other readings:

http://www.inchinapinch.com/ha...

http://www.biol.andrews.edu/ev...

http://www.dep.state.fl.us/wat...