Pheromones serving functions other than reproduction, Biology

Assignment Help:

Pheromones Serving Functions Other than Reproduction

Besides sexual responses as described above pheromones mediate several other types of behaviour. Alarm pheromones have been found in termites and bees. The termite soldiers liberate alarm pheromones attracting (communicating alarm signals) the aggressive workers that participate in attacking the intrusive individuals. Trait pheromones secreted by insects help social integrity during migration of colonies by orienting along an invisible chemical trail that has been laid out by one or more conspecific insects. Both aerial land terrestrial trails are possible. Some species of ants and termites deploy trait pheromones in the recruitment of workers to food sources. Aggregate pheromones make it possible for both sexes to aggregate.

They are produced by members of both sexes. Pheromone-mediated aggregation helps to aggregate insects for feeding, protection, reproduction etc. A pheromone, 2-methoxy-5- ethylaphenol is produced from faeces of the migratory locust, Locusta migratoria migratorioides. The pheromone causes the young hoppers to aggregate and is also associated with the induction of morphological and physiological changes that result in the transformation of the hoppers to the migratory phase. In cockroaches also, the pheromones released from various surfaces of the body and from the faeces cause aggregation. In the protozoan Dictyostelium discoideum (amoebae, also known as cellular slime molds) the amoebae release pulses of a pheromone, which has been identified as cyclic 3'-5'AMP resulting in the aggregation.


Related Discussions:- Pheromones serving functions other than reproduction

Excretory organ and waste product, name the excretory ogran and waste produ...

name the excretory ogran and waste product formed in various types of animals

Nuclear run-on, Nuclear run-on is a technique used to estimate the relativ...

Nuclear run-on is a technique used to estimate the relative rate of the transcription of a given gene, as opposed to steady-state level of the mRNA transcript (which is influenced

Which type of molecule does each of these enzymes break, Besides the pancre...

Besides the pancreatic juice in the intestine there is the releasing of the enteric juice that having digestive enzymes too. What are these enzymes and which type of molecule does

Animal pharming, A n i m a l pharming Using animals...

A n i m a l pharming Using animals as bioreactors is also cost-effective and advantageous because animals naturally carry the cellular mechanisms needed to

What is the water cycle, What is the water cycle? The water cycle repre...

What is the water cycle? The water cycle represents the circulation and recycling of water in nature. Liquid water on the planet surface is heated by the sun and turns into

Per -capita rate, In one year, a population size of 500 changed to 496. Wha...

In one year, a population size of 500 changed to 496. What is the per-capita rate of increase/decrease?

Define water distribution and compartments of body water, Define Water Dist...

Define Water Distribution and Compartments of Body Water? Each one of us has a veritable 'sea within', held in place by multiple membranes and our protective envelope of skin.

Spore forming protozoan, Normal 0 false false false EN-...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

How the arrangement of cells helps with tissue functioning, PROVIDE a speci...

PROVIDE a specific example for epithelial and connective tissues, how the arrangement of cells helps with tissue functioning?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd