Is Human Pheromone Spray Really Effective? 

Human pheromones in their natural sense have been identified as being the silent attractant between men and women but can they prove useful in an artificial sense? Is it possible to use a pheromone spray and create that invisible magic leaving your competition "wallowing in your wake."

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.

Having a penchant for pheromone cologne for women led us to write all that there has been written on pheromone cologne for women here. Hope you too develop a penchant for pheromone cologne for women!

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

Human pheromone products have gradually become a part of the fragrance landscape during the past few years with more and more people using them as part of their make up. But the question is continually asked… do they work? And to take it a step further… can they be used effectively in the business world?

In this present work the totally 54 isolates were screened from 20 different seaweed species out of which 34 species were showed the signs of quorum sensing i.e. 17 producer and 17 inducer strains, but when these organisms where subjected to quorum sensing principle in mixed culture only 3 them have responded. So the present study reveals around 17% of bacterial species isolated from seaweeds and sediment were responded to quorum sensing. According to the results of bacteria isolated from marine algae surfaces indicated that the incidence of antibiotic producing strains from this habitat was 20% where as that from sea water was only a few percent. In the present study also reveals more or less the same ratio in Pseudomonas spp. was observed. Our results also reveals a results of Kell et al., 1995; Stead et al., 1996; they have said the culture supernatant of Pseudomonas sps known to contain AHLS which induces the production of phenazine antibiotics. In this investigation due to time constraint, It was not attempted to identify the active compound secreted by Pseudomonas through quorum sensing, which may leave the space for the further intensive research in future.

Because of different societal rules, many of our instincts have been suppressed. In certain cultures it is perfectly natural to walk around bare breasted, yet in others you can get arrested for this type of behavior.

QUORUM SENSING EXPERIMENT NUMBER 1 In this present study, the producer and inducer strains were cross reacted to find out the production of antibiotic compound through quorum sensing. Totally three set of cultures were maintained as follows (along with one as control).

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

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.

Liming, Y., K. G. Boyd, and D. R. Adams. 2003. Biofilm specific cross species induction of antimicrobial compounds in Bacilli. AppI.Envi.Microbiol, 69:3719-3727.

This experiment does not showed any inhibition zones Bacterial identification The 3 producer and 3 inducer strains which were responded the quorum sensing principles alone were subjected to biochemical analysis for identification. The obtained results revealed that all the producer strains showed sings of Pseudomonas sps and the inducer strains showed signs of Vibrio sps. So, based on the obtained result all the producer strains seems to be a Pseudomonas sps where as all the Inducer strain belongs to the genus vibrio.

Pheromones are odorless and are sensed by an organ located in the nasal passage called a VNO (vomeronasal organ). It's described as a type of "sixth sense." The question of whether human pheromones can be produced in fragrance form has long been debated but it hasn't stopped the marketing of such products available today. Pheromone spray is real and has opened up a lucrative market for those savvy enough to recognize the power of this concept. The problem is identifying which products are genuine and which are just out there to make a buck. There is a simple way of determining which pheromone sprays you should consider.

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

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.

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.

Burgess, J. G., H. Miyashita, H. Sudo, and T. Matsunaga.1991. Antibiotic production by marine photosynthetic bacterium Chromatium purpuratum NKPB 031704: Localization of activity to the chromatophores. FEMS Microbiol. Lett. 84: 301 - 306.

I am here to tell you that you do not have to look like a supermodel to be the most beautiful, sexy and attention getting woman in the room. How many models have you heard of that have not only gotten their man but kept them? Not many. They have the look but haven't taken the time to enhance their other assets.

Pheromone Product Due Diligence When doing a search online for pheromone products pay particular attention to whether a company manufactures it's own products. Whether they be in a spray formulation or wipe on the simple fact that they produce their own pheromone-based product generally means they've spent time in the research lab testing what works and what doesn't. I don't know about you, but I'd be much more comfortable using a pheromone spray from a company who has gone to the trouble of researching and testing their own product before releasing it to the public.

The test organisms Vibrio species were isolated from seaweed as epiphyles, biofilm, sediment and puffer fish by using TCBS medium (Hi media) The pathogenic bacteria were collected from clinical laboratories.

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:

Attracting a man is never as difficult as we make it out to be. You are born with the knowledge of how to give off the right signals. Let go of your shyness, practice and suddenly you will realize how natural flirting and attracting men can be.

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.

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

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.

Table 2: The results of Quorum Sensing analysis of epibiotic bacterial isolates from seaweeds. Seaweed sample Producer organism Inducer organism Cross-species producer with inducer Cross-species supernatant test with inducer Zone of clearance (mm)

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

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.

Caulerpa racemosa Chlorophyceae Dictyota dichotoma Phaeophyceae Turbinaria ornata Phaeophyceae Padina gymnospora Phaeophyceae Sargassum cinearifolium Phaeophyceae

On an unconscious biological level we are given hidden attractors like pheromones and subtle physiological changes, like dilated pupils, the swelling of your lower lip and for men more obvious changes. We are also hard wired to know how to flirt.

Your look is a very small part of your whole seduction package. A truly seductive woman has many tools in her arsenal. She knows how to get his interest and to keep it focused on her alone. She knows how to get a man to cross a room just to speak to her, and how to get him to call her that night. Before she leaves her home to go out, she is confident of how the evening will end. Part of this is confidence, gained from living the part of seduction diva, and part of it is the use of visualization techniques.The good news is that all of these techniques can be taught.

Technically, pheromones in humans are linked to the reproductive process and the attraction between men and women. According to studies, the effects of pheromones in humans can be largely detected in the relationship between the mother and child. Studies have shown that infants usually display instinctive attachments to their mothers through the smell, texture and sounds that can be associated with the mother especially when she is nursing.

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

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.

Having a penchant for pheromone cologne for women led us to write all that there has been written on pheromone cologne for women here. Hope you too develop a penchant for pheromone cologne for women!

Icebreaker Pheromone Cologne

Quorum sensing usually focused on the bacteria growing in homogeneous environment. However few studies have attempted to a study this principle in heterogeneous environment also. In this present investigation we have attempted to study both homogeneous as well as heterogeneous environment. In former one we have isolated producer strain in seaweed eipbionts and it shows inhibitory activity against the inducer organism at the same seaweed epibionts. Later producer strains from seaweed epibionts, were treated with various Vibrio organisms from different environment. The obtain result of this study shows that the producer strain are capable of secreting antibiotic compounds not only to their natural competitors in its own habitate but also to the pathogen inhabiting in a distant related environment.

In gram positive bacteria peptide and derivative peptide based signaling molecules seem to be the predominant mode of communication. During high cell density the marine bacteria can produce enzymes, surfactants, toxins, and antibiotics by the chemical signal communication. Marine epibiotic bacteria are also known to produce compounds active against drug resistant hospital pathogen by the cross species induction method. Building on assays described by Austin (Billaud and Austin 1990) a screening procedure has been developed in which marine bacteria are challenged by exposing them to terrestrial bacteria prior to assay of antimicrobial compounds. Hence in this present investigation it is proposed to find out the ability of sea weed epibiotic bacterial organism to produce antibacterial compounds through quorum sensing.

Korber, D. R., J. R.Lawrence, H. M. Lappin-scott, and J. W. Costerton. 1995. Growth of microorganisms on surfaces. In. Microbial. Biofilm, Lapp in - Scott. Cambridge, UK: Cambridge university press.

- a husky laugh - biting your lower lip as you look him in the eyes - the added use of purchased pheromones - padded bras - form fitting outfits

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

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

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.

Studies seem to prove conclusively that odorless compounds have a certain effect on human bevaviour. You've only got to do a search for Dr. Winifred Cutler online who has led the way in human pheromone research during the past three decades to realise this is not a subject where claims are baseless. Amazingly, it's also being suggested that pheromones are gender specific; that is only a human pheromone can generate a human response and even more enlightning; heterosexual to heterosexual and homosexual to homosexual. Is it possible?

illaud, A. C, and B. Austin. 1990. Inhibition of the fish pathogen, Serratia liquefaciens by an antibiotic producing isolates of planococcus recovered from sea water. Journal of

We suggest that the above said mechanisms in Pseudomonas with quorum sensing principle might have occurred in the present study also. This induces the bacteria Pseudomonas in epibiotic seaweeds to secrete certain active compound against to the competitor Vibrio species.

b) Among these 17-inducer strain 6 strains were isolated from Hypnea musiformis, 6 from Gracillaria edulis, 4 from Ulva lactuca & 1 from sediment.

Do pheromones in humans really work like the pheromones in insects and animals? A number of scientists would like to believe that they do. However, there are also many who vigorously object to such a conclusion because if we equate pheromones in human beings with that of other species, this could mean that like animals, humans could be made to falsely respond to certain synthetic forms of pheromones.

Holmstrom, C, D. Rittschof, and S. Kjelleberg. 1992. Inhibition of settlement by larvae of Balanus amphitrite by a surface - colonizing marine bacterium. Appl. Env. Microbiol. 58: 2111 -2115.

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

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.

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.).

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).

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

Hypnea musiformis 1. BrA+ 2. BrB+ 3. BrC+ 4. BrD+ 5. BrE+ 6. BrF+ BrA- BrB- BrC- BrD- BrE- BrF- Br A+ /Br A-

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.

Mckenney, D., K. E. Brown, and D. G. Allison. 1995. Influence of Pseudomonas aeruginosa exoproducts on virulence factor production in Burkholderia cepacia: evidence of interspecies communication. J. Bacterial 177: 6989 - 6992.

Well why not make these natural signals conscious? If there is someone who has caught your eye, instead of looking away meet his gaze and hold it. Give him a smile or nod your head at him in passing. Men are so used to being rejected that these small signs that you are open to his approach will be welcomed with open arms.

Vandevivere, P., and D. L. Kirchman.1993. Attachment stimulates exopolysaccharide synthesis by a bacterium. Appl. Environ. Microbiol. 59: 3280-3286.

If you live in the United States, for example, and you want to attract a man you can quite reasonably use: - eye flirtation - the lip lick - crossing and uncrossing your legs

When we allow ourselves these instincts kick in. Women automatically know to cross and uncross their legs, play with their hair, flirt with our eyes. No one took us aside and taught a class on it.

a) Among these 17 producers strain 6 strains were isolated from Hypnea musiformis. 6 from Gracillaria edulis, 4 from Ulva lactuca & 1 from Sediment.

*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).

Zhang, L., P. J. Murphy, and A. Kerr. 1993. Agrobacterium conjugation and gene regulation by /V-acyl-L-homoserine lactones. Nature 362: 446 - 448.

Writing all this on pheromone cologne for women can be considered an obligation to us. This is because we felt obligated on imparting all this knowledge we knew about pheromone cologne for women.
Author Dave Thomson

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