IAS Aroid Quasi Forum

About Aroid-L
 This is a continuously updated archive of the Aroid-L mailing list in a forum format - not an actual Forum. If you want to post, you will still need to register for the Aroid-L mailing list and send your postings by e-mail for moderation in the normal way.

  [Aroid-l] Philodendrons produce infrared light???
From: gibernau at cict.fr (Marc Gibernau) on 2008.05.26 at 09:09:09(17624)
Dear Aroiders,

I'll not write a long e-mail because, as I wrote to some of you in private
messages, the research on this topic is in fact "very" recent even if the
idea is may be 20 years old.
Please find in attachment the figure of a recent paper written by Roger
Seymour (Univ. of Adelaide, Australia) and myself on the thermogenesis of
Philodendron melinonii.
The paper is a bit complicate but the this figure present a real picture
and the equivalent IR picture of the same inflorescence during
thermogenesis (heating phase).
Hence you can see the inflorescence like an insect could "see" it through
its IR receptors. Flashy!!! There is no question if the pollinating beetles
have IR receptors they can detect a heating inflorescence. The questions
now to study are:
Do Cyclocephala beetles have IR receptors ?
What are their sensibility & efficiency?
Are IR radiations used as a guide by Cyclocephala beetles to find the
inflorescences to visit or are odors sufficient ?

To finish, I would like to say that I have the honor to be the IAS speaker
during the Annual show next September, and that I'll pleased to tall you
some "nice "stories around thermogenesis and IR radiations.

All the best,


Note: this is a very old post, so no reply function is available.