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  Second bite
From: SNALICE at aol.com on 1997.04.30 at 19:42:44(690)
And the meaning of heterotroph?
I found that "heter" means "different", "not alike", and "trop" means
"turning towards" as to the sun (I couldn't find "troph"). How does this
translate? If I had to guess: Such an inflorescence would be unlike others
since it would not follow the sun's course?
Sue Zunino

From: "Richard Mansell (BIO)" <mansell at chuma.cas.usf.edu> on 1997.04.30 at 21:15:00(691)
Heterotroph refers to those organisms that cannot produce their own food
source, (glucose). Thus fungi, animals etc are considered heterotrophs.
Many bacteria are heterotrophs but some are also photoautotrophs (use
light to produce sugar), or chemoautotrophs (use chemical compounds
which they oxidize to release energy which in turn they use to make
sugar). Sounds like fun stuff, huh!

Hope this helps.


From: eduardo gomes goncalves <eggon at guarany.cpd.unb.br> on 1997.05.01 at 01:57:39(693)
Dear Sue,

In botany, heterotroph simply means: Those organisms (or organs) that
aren't able to produce their own food by means of photosyntetic activity.
The word "troph" concerns the form of nutrition. Since the inflorescences
are mostly aclorophyllous (now that all aroidelers know what it
means), they are essencially heterotroph and drain lots of energy from the
mother plant, delaying the production of new leaves. This situation seems
to get worse in strongly thermogenic inflorescences, like those of
Alocasia, Philodendron, etc.

Hope the above helps,


From: "Richard Mansell (BIO)" <mansell at chuma.cas.usf.edu> on 1997.05.01 at 02:50:58(696)
A second effort. Heterotroph (biol) capable of utilizing only organic
materials as a source of food, as most animals and some plants. (opposed
to autotrophic). Hetero - from others, not from self. Trophic: of or
pertaining to nutrition; concerned in the nutritive processes.

Please do not stop asking questions; we shall keep trying to clarify and
should continue to do so. Thay way, everyone learns.


From: "Carlo A. Balistrieri" <cabalist at facstaff.wisc.edu> on 1997.05.01 at 03:37:06(697)
At 02:44 PM 4/30/97 -0500, you wrote:
>And the meaning of heterotroph?

A plant that obtains nourishment from organic substances (as opposed to an
autotroph which makes its own food from inorganic substances, e.g. most plants).


From: "Jane M. Whitehill" <whitehil at mobot.org> on 1997.05.01 at 18:10:55(699)
heterotrophs are like us - organisms that eat other organisms to stay
alive. Plants that make sugars themselves , that is, green plants in
general, are autotrophs.

From: SNALICE at aol.com on 1997.05.01 at 18:15:38(700)
Well I wasn't going to take a third bite, because I recall a conversation
going on about Philo. inflorescense emiting heat at such an elevated degree,
so as to be able to feel it when passing by, but now I think I understand
why everyone contemplates chopping off the inflorescence, so the leaf will be
better able to produce the energy
( which it previously made (being autotrophic), and stored in the corm and
the inflorescence does not make (being heterotrophic), but uses) needed to
feed back into the corm. Is this correct? I hope you all understand this
sentence, because I'm not sure I do.
Thanks to all,

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