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Re: Philodendrons produce infrared light???

  • Subject: Re: Philodendrons produce infrared light???
  • From: Marc Gibernau <gibernau@cict.fr>
  • Date: Wed, 21 May 2008 09:48:07 +0200

Dear All,

I have studied, with Denis Barabé et Roger Seymour, thermogenesis in many aroids and particularly Philodendron.

The thermogenic process, the heating, is due to a particular respiration of the cells of the spadix which converts the biological energy into heat. Increasing the temperature of a body leads to increase its emission in the infrared wave lengths (see picture on page 4 of the attached document).

In conclusion, yes thermogenic flowers/inflorescences can be detected in infrared when heating. Heating is ten cause of the infrared radiations and not the contrary.

About the pollination of Philodendron on the IAS web site you have several pages dedicated to the pollination ecology of aroids and one particularly on Philodendron :

I hope my explanations are clear.

All the best,


PS: more info on http://www.edb.ups-tlse.fr/equipe3/MG/mg2.htm

Attachment: P. melinonii respiration - Seymour & Gibernau 2008 J. Exp. Bot..pdf
Description: Adobe PDF document

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