Pheromone specificity?
Wyatt (2010) modified the definition
after Karlson and Luscher (1959) which is “Molecules that are evolved signals,
in defined ratios in the case of multiple component pheromones, which are
emitted by an individual and received by a second individual of the same
species, in which they cause a specific reaction, for example a stereotype
behavior or a developmental process”.
Here released by specific individual
is Ok, but which they cause a specific reaction ..up to this Ok ...received by
the second individual of the same species..is not always the same case. There
are exceptions, which may in due course of investigations, may prove as given
below to a wider species.
Pheromone specificity?
Usually it is said that pheromones are
species specific, but actually it is not so for all the species.
There are many exceptions.
1. Cis-8-Dodecenyl
acetate attract 40 insect species (Kydonieus and Beroza, 1982)
2. Asian
elephant (Elephas maximus) sex pheromone
((Z)-7-dodecen-I-ylacetate, the same chemical is used by 140 species of lepidopteran moths (Rasmussen et al.,1997).
v
Z9-14Ac - Tamaki
et al.(1976)-Spodoptera litura
(Z)-9-Tetradecenyl acetate
Formula:C16H30O2
318 other species use this chemical for communication (Refer: Pherobase)
v
Is amyl Acetate- Shares two order 1)
Hymenoptera—Aphis mellifera
2) Lepidoptera—Manduca
sexta
v
Cis-14-methyle.8.hexadecenal- is shared by many Trogoderma species
v
Cis-9, trans-12-Tetra Decadienyl acetate- Shares
two different genus
1) Pyralidae—Plodia interpunctella
2) Noctuidae--Spodoptera litura
Under this situation, is it opt to
define …..that influences the physiology or behavior of other animals of the
same species….
Pheromone chemical could attract or
cause physiological or behavioral changes to about 40 different species
and among the species belonging to different orders, hence, Can we define like
this:
“Info-chemicals excreted outside
eliciting reactions either physiological or behavioral on the receiving organism which may either be
the same or different species of organism”.
Kydonieus,A.F. and
Beroza,M.1982.Insect suppression with controlled release pheromone system, Vol
I CRC Press,Inc., Boca Raton.
Rasmussen, L. E. L., Lee, T.
D., Roelofs, W. L., Zhang, A. J., Daves, G. D.1997. Insect pheromone in
elephants. Nature, 379: 684.
Tamaki,
Y., Ohsawa, T., Yushima, T., and Noguchi, H. 1976. Sex pheromone and related
compounds secreted by the virgin females of Spodoptera
litura (F.). Jap. J. Appl. Entomol. Zool. 20:81-86.
Kindly clarify those are of super specialist in this
subject-Pheromones
