Androstenol Vs Androstenone Pheromones 

According to some surveys, about 50% of adult humans can't detect androstenone, unless the concentration is extremely high. Those who can detect androstenone say that its smell is not very pleasant. Androstenone is the main pheromone that men unknowingly secrete that attract women. Both men and women secrete pheromones when they sweat. However, since our body naturally only secretes small amounts of pheromones, they are effective for only a brief amount of time. The good news is that scientists have succeeded in identifying and synthesizing both androstenone and androstenol in the laboratory.

A lot of imagination is required in writing. People may think that writing on pheromone supplements is very easy; on the contrary, knowledge and imagination has to be merged to create an interesting composition.

The idea of attracting men is something most women will not divulge, even to their friends. The idea that they are using an enhancement to attract their man could bring some ridicule. However, times are certainly changing and there may come a time where the topic of conversation may not just be that guy that just moved into the neighborhood but "which pheromone product should I use to Attract him?"

Microdictyon tenunis Chlorophyceae Chondrococcus hornemonii Chlorophyceae Enteromorpha intestinalis Chlorophyceae Caulerpa cupressoides Chlorophyceae

U1+, U2+, U3+, U4+ Ulva lactuca SA+ Sediment INDUCER STRAIN BrA-, BrB-, BrC-, BrD-, BrE-, BrF- Hypnea musiformis

GcA-, GcB-, GcC-, GcD- GcE-, GcF- Gracillaria edulis U1-, U2-, U3-, U4- Ulva lactuca SA- Sediment

Hypnea valentiae Rhodophyceae Hypnea pannose Rhodophyceae Hypnea esperi Rhodophyceae Acanthophora spicifera Rhodophyceae ISOLATION OF EPIPHYTIC BACTERIA

Liming, Y., G. K. Boyd, and J. G. Burgess. 2002. Surface induced attachment induced production of Antimicrobial compounds by marine epibiotic Bacteria using modified Roller Bottle. Mar. Biotechnology. 4: 356 - 366.

Bassler, B.L.1999. Curr.Opin.Microbiol.2: 582-587.* Bernan, V. S., M. Greenstein, and W. M. Maiese. 1997. Marine microorganisms as a source of new natural products. Adv. Appl. Microbiol. 43: 57 - 89.

Wagner, V. E., D. Bushneil, and L. Passador. 2003. Micro array analysis of Pseudomonas aeruginosa quorum sensing regulons. J. Bacteriol, 185: 2080 - 2095.

CONCLUSION: The present investigation was aimed to study the quorum sensing principle among seaweed epibiotic bacterial organisms. In the past few decades there was no findings of new novel antibacterial class compounds were identified. But, the pathogenic microorganisms show much higher rate of resistant development even to the potential antibiotics. So, there is an urgent need to discover new novel antibiotic compounds. The marine inhabitants such as microorganisms, seaweeds, invertebrates, etc., act as an undepleted source of wide range of natural products among which the seaweeds act as a potential source of antibiotic compounds. Currently the cross species induction / quorum sensing attracts the total attention of researchers in finding new novel drugs against multidrug resistant pathogenic microorganisms. So, the present study aim to find out the capability of seaweed epibiotic bacterial organisms to produce novel drugs against the animal and plant pathogens

Allison, D. G., B. Ruiz, C. Sanjose, A. Jaspe, and P.Gilbert. 1998. Extracellular products as mediators of the formation and detachment of Pseudomonas fluorescens biofilms. FEMS Microbial Lett. 167: 179-184.

Success only came when you stop worrying about how to attract women. Instead, you should worry about how to be contented with yourself. Dedicate yourself to the principle that happiness comes not from outside, but from inside. Examined all of the factors in your life, all of the things that you cared about and the things that made you happy. Deepened and enriched your friendships, pursued your passion, and got in to see a therapist to tackle your low self-esteem. It worked wonders. Once you thought of yourself as attractive, women began to feel the same way about you. The rest is history.

Women are being catered to more and more in a market where men were once the main focus. That's understandable given guys are considered the chasers or pursuers in their quest to find female companionship. But does that mean women don't like to pursue? That's assuming women just need to put themselves out there and a man will come calling.

Patterson, G. L., and C. Ml. Bolis. 1997. Fungal cell - wall poly sacchraides elicit an antifungal secondary metabolite in the Cyanobacterium Scytonema ocellatum. J. Phycology. 33: 54 - 60.

MATERIALS AND METHODS: SAMPLE COLLECTION: Seaweed samples were collected from Gulf of Mannar Marine Biosphere Reserve and identified up to species level by using CMFRI bulletin (14) as follows:

ABSTRACT Bacterial biofilms are sessile communities with high cell density that are ubiquitous in natural, medical, and engineering environments; they are fascinating since they are primitive tissues with an advanced chemical communications network. Currently, there is an explosive amount of biofilm research, most of it with the ultimate aims of biofilm prevention, control, or eradication.The present investigation was aimed to study the cell signaling principle among seaweed epibiotic bacterial organisms , totally 54 bacterial isolates were made out of 20 seaweed species. Among 54 bacterial isolates 17 of them producer, another 17 of them inducer strains rest of 20 isolates were normal that have not showing any signs of activity. The 17 producers and 17 inducer strains were subjected to the cross species induction by quorum sensing principle and found that only 3 of them have responded to the cross species induction in production of antibacterial compound against the respective inducer strains. All the 3 producers and inducer were identified by biochemical analysis and surprisingly that all the 3 producer strain belongs to Genus Pseudomonas and inducer strains were belongs to Genus Vibrio. The supernatant obtain from mixed culture of Pseudomonas & Vibrio shows the antibiotic activity against the various Vibrio species which were isolated from other sources. Such as Vibrio from primary film, Vibrio from sediment Vibrio from seaweeds epibiotics. The obtain results clearly shows the particular Pseudomonas from seaweed epibionts has the capability of producing potential antibiotic compound against wide range of Vibrio species through quorum sensing.

BACTERIAL IDENTIFICATION The organisms responded to the quorum sensing process alone were identified by the following biochemical analysis.

GcD- GcE- GcF- NIL NIL 26 NIL NIL NIL Ulva lactuca 13. U1+ 14: U2+ 15. U3+ 16. U4+ U1-

Bassler, B. L., E. P. Greenberg, and A. M. Sterens. 1997. Cross species induction of luminescence in the quorum - sensing bacterium Vibrio harveyi. J. Bacteriology. 179: 4043-4045.

Androstenone pheromone is not the same as androstenol. Androstenol is produced by fresh male sweat, and is relatively attractive to women. The other pheromone, androstenone is produced by male sweat, when that sweat becomes less fresh - after exposure to oxygen. Androstenone is highly unpleasant to women, except during ovulation, when female response to this pheromone changes to "neutral". Therefore, the sweaty macho-man is likely to be unattractive to most women.

Another thing you must be aware of is what your body is saying to women you meet. You may see many offers that tell you how to attract ladies with body language, but the first thing you should worry about is repelling them with it. You can easily be doing things with your body that is turning women off. The way you stand and present yourself may be telling them that you are snobbish, unapproachable, or perhaps extremely arrogant. Learn how to be open with your body and you may find that women are more at ease with you.

In the gram negative bacteria AHSL is an active principle of quorum sensing. Our producer strain is also been identified as Pseudomonas sps. So in these organisms also active principle must falls under the AHSL. The cell-cell signaling mechanism can either require import of the signal and subsequent interaction with intracellular effectors or a two-component signaling system that transducers the information across the membrane. In V. harveyi genetic analysis of the density sensing apparatus has two independent density-sensing systems, and each is composed of a sensor-auto inducer pair; system one is composed of sensor I and Al -1, and system two is composed of sensor 2 and AI-2. The two densities - sensing system are redundant, because a null mutation in either system alone results in expression of hidden genes (Bassler, et al.,1999.).

Yotsu, T., Y.Meguro, A. Endo, M. Murate, H. Naold, and T. Yasumoto.1987. Production of tetrodotoxin and its derivatives by Pseudomonas sp. Toxicon 25: 225 - 228

GcC- GcD- GcE- GcF- Gc A+/GcA- Gc B+/GcB- Gc C+/GcC- Gc D+/GcD- Gc E+ /GcE- Gc F+/GcF- GcA- GcB- GcC-

Burgess, J. G., M. Elizabeth, M. Bregu, A. Meams-Sprugg, and K. G. Boyd. 1999 Microbial antagonism: a neglected avenue of natural products research. J. Biotechnology. 70. 27-32.

All the 17 strains were named as PRODUCERS STAINS BrA+, BrB+, BrC+, BrD+, BrE+, BrF+ Hypnea musiformis GcA+, GcB+, GcC+, GcD+, GcE+, GcF+ Gracillaria edulis

Evelyn, A., Y. Liming, K.G. Boyd, P. C. Wright, and J. G. Burgess. 2001. The symbiotic role of marine microbes on living surfaces. Hydrobiologia. 461: 37 - 40

Whiteley, M., K.M.Lee, and E.P.Greenberg.1999. Identification of genes controlled by quorum sensing in Pseudomonas aeruginosa. Proc.Natl.Acad.Sci.USA.96:13904-13909.

Colony morphology, Gram staining, Motility test, Oxidase test, Catalase test, Indole Production, Methyl red test, Voges Proskauer test, Citrate Utilization test, Triple sugar Iron test, Nitrate reduction test, Lactose fermentation, Urease test

*Corresponding author e-mail: vijay10bas@yahoo.co.in INTRODUCTION We are living in a microbial planet. About 71 % of the surface of this planet is covered by sea water. A typical milliliter of seawater contains 103 fungal cells, 106 bacteria, and 107 viruses, including pathogens that cause widespread mortalities and microbes that initiate fouling of host surfaces (Rheinheimer, 1992). Thus, marine plants and animals are continually exposed to high concentrations of potentially harmful microbes. These microorganisms in nature exists as free living planktonic mode of life in sea water or it may exist as epibiotic organisms in various living and nonliving surfaces. Among living organisms, seaweeds and invertebrates act as suitable substrate for the establishment of epibiotic organisms Seaweeds are known to release a large amount of organic carbon into the surrounding environment providing a nutrient rich habitat for microorganisms like bacteria. Bacteria are generally considered to be independent unicellular organisms. One cell accomplishes all of the tasks of feeding, locomotion, 'reproduction, respiration and all other processes necessary to keep an organism alive. There are several classes of bacteria such as primary film forming bacteria, sediment bacteria, symbiotic bacteria, and epibiotic bacteria in various aquatic organisms. The marine surface environment is a site of intense composition for living space by a wide variety of organisms. Bacteria are generally recognized as primary colonizers of this habitat and are able to form biofilm on marine surface such as invertebrates and algae (Bryers, et al., 1982). Bacteria may also be abundant on the surfaces of some algae as an important epibiotic organism. In many cases, the bacterial population found to be specific, with changes occurring throughout the year or life span of the algal surface. This algal-bacterial relationship is symbiotic in most cases; the epibiotic bacteria in seaweed play a protective role by releasing secondary metabolites into the surrounding seawater that help preventing extensive fouling of the surface. Epibiotic bacteria are therefore attracting attention as a source of new natural products. Bacteria from the larvae of some crustaceans protect them from fungal infection by the production of simple antimicrobial compounds. Bacteria isolated from the surface of a tunicate prevented the settlement of barnacle and tunicate larvae exposed to the bacteria as biofilm in petridishes (Evelyn et al., 2001).

A lot of imagination is required in writing. People may think that writing on pheromone supplements is very easy; on the contrary, knowledge and imagination has to be merged to create an interesting composition.

Icebreaker Pheromone Cologne

In this experiment among 17 Producer and Inducer strains only 3 of them have responded to the quorum sensing principle. (BrB+/BrB-), (GcC+/GcC) and (SA+/SA-)

Kell, D. B., A. S. Kaprelyants, and A. Grafen. 1995. Pheromones, Social behaviour and the functions of secondary metabolism in bacteria. Trends in Ecol. and Evol. 10: 126-129.

Many men want to know how to attract women, as if there is a need to swallow some magic pill. They tend to think of attractive women as some sort of commodity. They do not even feel like men unless they have a gorgeous woman at their beck and call. Most of these guys suffer from very low self-esteem and confidence. Their entire sense of self-worth is based entirely on dating attractive, gorgeous women, and generally they are single. Therefore, they think of themselves as nothing, or even less than nothing.

A. Live cells of producer and inducer strains B. Live cells of producer strain alone C. Live cells of inducer strain alone In culture system A 200ul of 16 hours old broth culture of both producer and inducer strains were added to the 15 ml of nutrient broth.

Androstenol, which appears in fresh sweat, is disintegrated by bacteria in about 15 to 20 minutes. This pheromone, which reported by women to be sweet-smelling, is also called the "pillow-talk pheromone", because women are exposed to it immediately after love making during the cuddling phase.

Androstenone and androstenol are both testosterone-linked pheromones. Some people say that androstenone is stronger "macho" pheromone that signals a dominant and aggressive personality, while androstenol signals friendliness.

Holmstrom, C, and S. Kjelleberg. 1994. The effect of external biological factors on, settlement of marine invertebrates and new antifouling technologies. Biofouling. 8: 147-160.

NIL NIL NIL NIL Gracillaria edulis 7. GcA+ 8. GcB+ 9. GcC+ 10. GcD+ 11. GcE+ 12. GcF+ GcA- GcB-

Androstenol Is Queen The pheromone used in perfume products for women is androstenol. It's the female equivalent of the version androstenone. It's said when men sense androstenol in the air, it's every guy for himself. It's what can turn a mild mannered guy into either a welcome serenader or a pain in the...!

Spray and concentrate products then complete the manor in which pheromones are made available to the public. For women though, it seems manufacturers are starting to realize they may have been leaving money on the table when they first began their quest to turn the human population into attraction magnets.

Lemos, M. L, A. E. Toranzod, and L. J. Barja. 1986. Antibiotic activity of epiphytic bacteria isolated from intertidal seaweeds. Microbial Ecology. 11: 149-163.

RESULTS AND DISCUSSION: QUORUM SENSING/CROSS SPECIES INDUCTION ANALYSIS In the present investigation totally 54 isolates were collected out of seaweed species. Among 54 isolates, 17 of them are producer strain, another 17 are the inducer strain rest of 20 isolates is normal and not showing any signs of activity (Table.2).

Bainton, N. J., P. Stead, and S.R. Chhabra. 1992. N-(3-oxohexanoyl)-L-homoserine Lactone regulated carbapenem antiobiotic production in Erwinia carotovora. Biochem. J. 288: 997-1004.

EXPERIMENT NUMBER 2 In this experiment, culture supernatant was obtained as per the procedure given in the experiment 1. 50ml of supernatant was mixed with equal volume of 80% methanol and 1% acetic acid mixture and it was shaked thoroughly in a separating funnel. Finally the methanol and acetic acid fractions were collected and concentrated by evaporation using water bath at 55??C. The viscous colloidal residues were resuspended in 600 microlitre of 50% methanol and it was used for antibacterial assay against different test organism.

The Power Of Androstenol Androstenol is said to have the power to turn a man into a woman's slave; they will become more receptive to your needs. Now that's every woman's dream. Imagine, that pile of uncut firewood in the backyard or the unmowed grass which has been put on hold during football season.

Some men produce more natural pheromones than others, which is why you can see some men who are not handsome, but have no problems in attracting and seducing the most beautiful women.

Bryers, J. D., and W. G. Characklis. 1982. Processes governing primary biofilm formation. Bioeng. 24: 2451-2476 Burgess, J. G., K. Boyd, E. Armstrong, T. Pisacane, and D. R. Adams. 2003. The development of a marine natural product-based antifouling paint. Biofouling. 19: 197 -205.

Dictyota batryensis Phaeophyceae Sargassum sps Phaeophyceae Hypnea musciformis Rhodophyceae Acanthophora dendroides Rhodophyceae Jania rubens Rhodophyceae

The results of Vanderivere and Kirchman 1993 suggest that the addition of increased surface by adding sand will induce the exopolymer synthesis through the high cell density dependent system. In the same way the bacterial organisms attached to the surface of seaweed shows alteration of genes expression may be due to the response to the high competitive environment. When cell density increases the competition for space and nutrients are also increased. So the existing bacteria were forced to protect themselves in this competitive environment. Normally in this condition the bacteria will be activated to induce the expression of certain hidden genes in genetic material through quorum sensing. The quorum sensing is principles were active compounds (autoinducer) from bacterial cell will promote the expression of a particular hidden gene of other bacterial organism in a stressed condition.

c) The normal 20 bacterial strains isolated from 20 algal species were crossed with terrestrial bacteria such as E-coli, Staphylococcus aureus separately

In concluding this discussion, the quorum sensing is wider spread among bacterial population then was previously thought, (In Gram positive, Gram negative bacterial communication). Current assays for antimicrobial activities are inadequate because some antibiotic producing bacteria may require the presence of another bacterial species. These findings have important implication for the discovery of novel antimicrobial compounds from marine bacteria and may allow the development of new methods for screening novel compounds active against multidrug resistant bacteria.

ANTIBIOTIC ASSAYS Antibiotic activity was performed in duplicate using a standard paper disc diffusion method as well as well assay. In well assay 10mm in diameter wells were made in marine agar plates and the plates were swabbed with 16 hours old inducer strain. To these wells 200ul of cell free supernatant were added to each well. In paper disc assay the Watmann no.1 filter paper discs (6mm in diameter) were saturated with 200ul of cell free supernatant. The impregnant discs were Dlaced in the centre of the plates swabbed with test organisms. The plates were Incubated at 37??C overnight and observed for inhibition zone. The zone of inhibition was measured as the distance from the border of paper disc to the edge of the clear zone and expressed in mm.

Cappuccino J. G., and N. Shermann. 1999. Microbiology, A Laboratory manual, Fourth edition, Addison Wesley, New York. Davies, D. G., M. R. Parsek, J. P. Pearson, B. H. Iglewski, J. W. Costerton, and E. P. Greenberg. 1998. The involvement of cell to cell signals in the development of a bacterial biofilm. Science. 280: 295-298.

Rheinheimer, G.1992.Aquatic microbiology (Wiley, New York), 3rd Ed. Stead, P., B. A. M. Rudd, H. Bradshaw, D. Nobel, and M. J. Dawson. 1996. Induction of phenazine biosynthesis in cultures Pseudomonas aeruginosa by L-N-(3-oxohexanoyl) homoserine lactone. FEMS Microbiology Letters 140: 15-22.

Meains - Spragg, A., M. Bregu, K. G. Boyd, and J. G. Burgess. 1998. Cross species induction and enhancement of antimicrobial activity produced by epibiotic bacteria from marine algae and invertebrates, after exposure to terrestrial bacteria. Letters in Applied Microbiology. 27: 142-146.

Imagine ladies, just a dab of pheromone perfume and you can put your man under your spell. You'll be the envy of every female in your own imaginary Wisteria Lane!

With this, we now come to the ending of pheromone supplements. We hope that we have served to provide you with some enlightenment on pheromone supplements through this article.
Author Dave Thomson

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