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HYBRIDIZATION:
Once we had developed the substrate and growth parameters to optimize the target compounds, we started looking into the chemical profile differences from different strains of Cordyceps sinensis. Since there were so many strains of Cordyceps, and each strain has its own unique chemical profile, we tested all of the strains we were able to obtain. None of the known strains was shown to produce nearly the quantities of active ingredients found in the wild Cordyceps. So we started experimenting with ways to quantitatively increase the target compound production through the hybridization of Cordyceps strains; to cross breed them in order to gain greater production of target compounds. This was quite a challenge. Since spore collection and separation is very time consuming and results in entirely too much unknown variations, we felt this method would take too much time before we had reliable results. Rather we took a novel approach. We experimented with various ways to get different strains of the fungi to perform their own nuclear fusion. There are several chemicals known to trigger this exchange of genetic material between unlike cells. Nicotinic acid for instance, can be used to create hybridized mycelium. This compound is difficult to use and yields unreliable results. After trying several different compounds to trigger this fusion, what we settled on was snake venom.
SNAKE VENOM AS A HYBRIDIZATION AGENT:
We used purified snake venom from the Western Diamondback Rattlesnake (Crotalus atrox see illustration 2) [Sigma Scientific, St Louis Missouri, USA] for our hybridization techniques. The snake venom is added to the agar medium in quantities that alters the growth but does not prove toxic to the strain in question. This range of snake venom is from 10 mg to 30 mg per 300 ml of agar medium. The venom is not heat stable and must be added aseptically after sterilization of the medium. The agar used for this hybridization is an Aloha Medicinals Inc. proprietary agar named R7 Agar, consisting of malt extract, activated carbon, minerals and humus – the carbon-rich ash residue from a coal burning industrial process. For the exact recipe see table 4. Other agars could probably be used as well. This just happens to be our production agar that we use everyday, and once we found that it also worked with the snake venom for hybridization, we found no reason to experiment with any other agar.
R7 AGAR RECIPE 2.1 L Distilled Water 50 g Light Malt Extract 34 g Agar 10 g Humus 5 g Activated carbon 1 g MgSO4 10 ml 1% KOH solution
HYBRIDIZATION TECHNIQUE:
Petri dishes of this R7 agar medium are inoculated with mycelium from two different strains of the Cordyceps genus. These are usually two varieties of C. sinensis, although we have also crossbred C. sinensis with other Cordyceps species such as C. militaris, C. sobolifera and C. ophioglosoides. These different strains when inoculated together onto one petri dish will normally grow towards each other until they almost meet, at which point they form a zone of inhibition, where neither strain can grow. Eventually, one strain may prove stronger than the other and overgrow the plate, but they will remain genetically distinct; two different cultures residing in the same petri dish.
With the addition of a sufficient quantity of snake venom to the agar, we found that what happens is the two cultures grow towards each other until they meet and form their mutual zone of inhibition. This period of inhibition is short lived however, for in only about 2 or 3 hours the colonies each start sending out mycelial strands into this no-mans land, the zone of inhibition. These strands grow together and exchange nuclear material through their venom-weakened cell walls. They form a hybrid strain at this point of mutual contact. A new strain, one that is distinctly different from either of the parent strains. Within about 4 hours after first forming the zone of inhibition, the hybridization is complete and the colonies resume rapid growth towards each other. They become three colonies rather than the original two. There then exist in the same plate the original two colonies and a genetically distinct third…The Hybrid.
A section of the newly formed hybrid is carefully removed from the original zone of inhibition at the precise time that the colonies begin to fuse. That is during hour 3-4 after the initial meeting of the colonies. The hybrid is transferred to a new petri dish containing normal (non-snake venom) agar. Our quick method of determining hybridization is to inoculate a new dish containing normal agar with all three strains, the original two and the suspected hybrid. If the hybridization has in fact taken place, these are now three distinct colonies, and will form a mutual three-way zone of inhibition. If hybridization has failed to occur, then the suspected hybrid will readily fuse with either one or the other of the original colonies. This proves that our suspected hybrid is not genetically distinct from the original and we start anew. See Illustration 3
Once a hybrid is confirmed, it is tested for growth parameters. If it appears to be a vigorous and hardy grower on our substrate of choice, we grow out a quantity of mycelium, harvest it and analyze it for active ingredients. Through repeated testing in this way we were able to create the hybrid strain shown in Plot 6; a hybrid strain that is easily grown in solid substrate culture, with a potency greater than any other cultivated strain and at least equal in potency to the highest quality wild Cordyceps. We are referring to this new strain as Cordyceps sinensis Alohaensis. We are presently continuing this hybridization work with other species of Cordyceps, for the production of very specific target compounds. Top quality Cordyceps is no longer a health supplement only for the very rich. By utilizing these new methods of cultivation, the best quality Cordyceps is now within economic reach of even the common man throughout the world.

(FREEZE DRIED) SNAKE VENOM
US$ PRICE PER GRAM Aspidelaps scutatus Shield Nose Snake 1800.00 Bitis arietans Puff Adder 180.00 Bitis caudalis Horned Adder 1500.00 Bitis gabonica Gaboon Adder 210.00 Bitis rhinoceros West African Gaboon Adder 210.00 Causus rhombeatus Night Adder 230.00 Dendroaspis angusticeps Green Mamba 510.00 Dendroaspis polylepis Black Mamba 495.00 Dendroaspis jamesoni Jameson's Mamba 850.00 Dendroaspis viridis West African Green Mamba 1010.00 Dispholidus typus Boomslang 2 400.00 Echis Pyramidium North East Carpet Viper 3250.00 Echis Ocellatus W.A. Carpet Viper 3350.00 Echis Coloratus Painted Carpet Viper 3400.00 Hemachatus Haemachatus Rinkhals 370.00 Naja annulifera Snouted Cobra 190.00 Naja melanoleuca Forest Cobra 190.00 Naja pallida Red spitting Cobra 210.00 Naja mossambica Mozambique Spitting Cobra 200.00 Naja Nubiae Nubian Spitting Cobra 210.00 Naja Nivea Cape Cobra 425.00 Naja Naja Kaouthia Monocle Cobra 100.00 Naja Haje Haje Egyptian Cobra 245.00 Naja Nigricollis Black-necked Spitting Cobra 200.00 Proatheris Superciliaris Swamp Viper 2000.00 Rhamphiophis Rostratus Rufous Beaked Snake 2000.00 Trimerusurus Okinawnesis Okinawa Habu 250.00
Edited by Cloneufc (10/18/09 06:32 PM)
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