Tag Archives: viral

How Coronavirus is Affecting the International Cannabis Industry

By Marguerite Arnold
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Frankfurt: Germany right now is not the worst place to be as a global pandemic closes borders and leads predictably to mass change overnight, which is unparalleled during peacetime. But it is still eerie. Berlin and Cologne are starting to close public spaces (like restaurants, bars and clubs).

The grocery stores and pharmacies are still stocked and open however- it is a national priority.

On Germany’s borders, Europe is closing in a way it has not since WWII. The EU is considering banning all non EU “foreigners” from entering the region for nonessential reasons for the next 30 days – albeit in an environment where leaders are also concerned about making sure supplies get through to those who need them.

It also feels like wartime – only this time the “enemy” is a virus. It is called COVID-19, and it is spreading. It cannot be “stopped” although authorities are now doing everything they can to slow it down. At risk are not only populations but also vulnerable health care systems. The goal here is to prevent masses of sick people showing up at hospital. There will not be enough space for everyone if the rapid spread of the virus is not stopped, starting with beds and ventilators. In Italy, doctors are already triaging patients (deciding, in an overwhelming influx of sick patients, who has a chance of living and who does not), because there is a shortage of staff, beds and medical devices for those who need the most care.

The German government, in particular, is clearly prioritizing slowing down the spread and mitigating the load on a system that is strong, but also vulnerable to this kind of existential overload. Jens Spahn, Germany’s health minister, sounded the alarm early about mass gatherings. The country’s Chancellor, Angela Merkel, has promised to throw “Germany’s arsenal” (funding) to help German organizations hit hardest.

But that is just one country. Italy is in lockdown, Spain is on its way this week, and many others are closing borders. In Switzerland, as of this weekend, the only shops that were open were pharmacies and grocery stores. To get in, you must wait in line outside, spaced 1 meter from other people, and use hand sanitizer as you enter.

These are not privations that any generation alive today remembers viscerally. The closest is stories, perhaps second or third hand, of what life was like here during wartime.

Both China and now Germany have sent medical supplies to Italy (the worst affected country in Europe so far), and a German company is on the front lines of producing a vaccine which is likely to be ready for human trials as of June.

What Is The Impact On The Cannabis Industry Specifically?

But how does all of this impact the global cannabis industry, especially as it is an industry still very much and by design, built on international imports? Throughout the world, including the United States, cannabis-related trade shows, expos and conferences are all being either cancelled or rescheduled to June at the earliest. President Trump also instituted a European travel ban, although this will not have much effect on the industry here, since Germany imports cannabis from Canada, not the U.S. for its medical market.

The connection to the industry from the threat of the virus itself is also on display. In Illinois, for example, some dispensaries are giving priority to their medical patients, shutting the doors to recreational customers. Just months after legalizing recreational sales, the state is now telling dispensaries to discourage crowds and prevent customers from lining up. That is not so far the case in Europe where cannabis is slowly being normalized into the regular pharmacy system. But pharmacies are also on the front lines of this epidemic – not only in that they serve front-line customers, but also deliver medicines to retirement homes.

German authorities have already suggested that they nationalize medical supply chains from Asia for vital medical supplies, including presumably vaccines and other medications as well as medical equipment, like ventilators.

Clinical trials, fast-tracked vaccine production and new drug approvals are evidence of how quickly governments can work to produce new treatment options. Countries still hampered by the slow pace of cannabis reform should look at how a global health crisis has allowed governments to bypass certain areas of red tape, untethered by high prices in developing supply chains. While cannabis reform is indeed not the same as a global pandemic, it has the ability to save lives regardless. That ability should be enough impetus for quick reform, much like actions taken by governments so far during this crisis. Not to mention the fact that many cannabis patients are also the demographic of who is most vulnerable in this epidemic – the chronically ill and the elderly.

The International Cannabis Business Is Built on Global Supply Chains

In the U.S. right now, there is a significant concern about sourcing of the vaping industry (the vast majority come from Asia). In Europe this is of course far less of an issue. The only vapes of medical designation produced here are made by German Storz and Bickel.

However, there are other considerations. Right now, more cannabis is being imported than grown in Germany legally, Europe’s still largest medical market. And so far, most of the cannabis here is coming in from Canada, Holland or Portugal although domestic production has now been seeded from Greece and Malta to countries further east. There is only one entity (the former Wayland in partnership with the German Demecan) who is now even certified to produce in Germany.

Wash your hands, limit social interaction and cancel large events. Stock markets around the globe are in free fall as investors fear the crisis will plunge the global economy into a recession. This obviously affects publicly traded companies, as well as companies looking for capital. Expect the larger cannabis companies to continue taking bigger hits on their stock price.

But while borders are being closed all over Europe to people, emergency medical supplies and the like will increasingly be given priority.

How countries begin to view cannabis in this kind of epidemic is another question. It is certainly a drug of last resort right now, highly expensive and in many cases going to the elderly and those in palliative care. For this reason alone, cannabis companies need to step up to the plate. This industry is being built to serve the chronically ill. In other words, those people who are already most vulnerable to this virus.

But how to do that? Dronabinol (manufactured in Germany) is no longer the only option now available. It was patented as a direct response to the AIDS crisis in the early 1980s. But in a country with other options now, this is also on the plate.

So what can cannabis companies do during this time of crisis? For starters, read the guidelines on how companies can do their part to mitigate the spread of disease. Wash your hands, limit social interaction and cancel large events. Consider using in-store pickup or delivery options, where legal. And use telecommunications platforms like Skype or other remote cloud solutions to manage your workforce remotely.

Cannabis companies ought to have the wherewithal to do their part in mitigating the spread of COVID-19. As the global pandemic continues to spread outside of China (the only place where new infections are now levelling off), it’s increasingly important to monitor the situation and take extra precautions to mitigate the spread.

Keeping Your Environment Clean: Preventative Measures Against Contamination

By Jeff Scheir
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For years we have heard about and sometimes experienced, white powdery mildew when growing cannabis. It is a problem we can see, and we have numerous ways to combat it. But now more and more states are introducing regulatory testing on our harvests and they are looking for harmful substances like Escherichia coli., Aspergillis Fumigatus, Aspergillis terreus, …  just to name a few. Mycotoxins, mold and bacteria can render a harvest unusable and even unsellable- and you can’t see these problems with the naked eye. How much would it cost you to have to throw away an entire crop?

You bring in equipment to control the humidity. You treat the soil and create just the right amount of light to grow a superior product. You secure and protect the growing, harvesting, drying and production areas of your facility. You do everything you can to secure a superior yield… but do you?

Many of the organisms that can hurt our harvest are being multiplied, concentrated and introduced to the plants by the very equipment we use to control the growing environment. This happens inherently in HVAC equipment.

Your air conditioning equipment cools the air circulating around your harvest in a process that pulls moisture from the air and creates a perfect breeding ground in the wet cooling coil for growth of many of the organisms that can destroy your yield. As these organisms multiply and concentrate in the HVAC system, they then spew out into the very environment you are trying to protect at concentrated levels far greater than outside air. In effect, you are inoculating the very plants you need to keep safe from these toxins if you want to sell your product.

The cannabis industry is starting to take a page from the healthcare and food safety industries who have discovered the best way to mitigate these dangers is the installation of a proper UVC solution inside their air conditioning equipment.

Why? How does UVC help? What is UVC?

What is Ultraviolet?

Ultraviolet (UV) light is one form of electromagnetic energy produced naturally by the sun. UV is a spectrum of light just below the visible light and it is split into four distinct spectral areas – Vacuum UV or UVV (100 to 200 nm), UVC (200 to 280 nm), UVB (280 to 315 nm) and UVA (315 to 400 nm). UVA & UVB have been used in the industry to help promote growth of cannabis.

What is UVC (Ultraviolet C)?

The entire UV spectrum can kill or inactivate many microorganism species, preventing them from replicating. UVC energy at 253.7 nanometers provides the most germicidal effect. The application of UVC energy to inactivate microorganisms is also known as Germicidal Irradiation or UVGI.

UVC exposure inactivates microbial organisms such as mold, bacteria and viruses by altering the structure and the molecular bonds of their DNA (deoxyribonucleic acid). DNA is a “blue print” these organisms use to develop, function and reproduce. By destroying the organism’s ability to reproduce, it becomes harmless since it cannot colonize. After UVC exposure, the organism dies off leaving no offspring, and the population of the microorganism diminishes rapidly.

Ultraviolet germicidal lamps provide a much more powerful and concentrated effect of ultraviolet energy than can be found naturally. Germicidal UV provides a highly effective method of destroying microorganisms.

To better understand how Steril-Aire UVC works, it is important to understand the recommended design. Directed at a cooling coil and drain pan, UVC energy destroys surface biofilm, a gluey matrix of microorganisms that grows in the presence of moisture. Biofilm is prevalent in HVAC systems and leads to a host of indoor air quality (IAQ) and HVAC operational problems. UVC also destroys airborne viruses and bacteria that circulate through an HVAC system and feed out onto the crop. HVAC cooling coils are the largest reservoir and amplification device for microorganisms in any facility.

For the most effective microbial control, UV germicidal Emitters are installed on the supply side of the system, downstream from the cooling coil and above the drain pan. This location provides more effective biofilm and microbial control than in-duct UVC installations. By irradiating the contaminants at the source – the cooling coils and drain pans – UVC delivers simultaneous cleaning of surface microorganisms as well as destruction of airborne microorganisms and mycotoxins. Steril-Aire patented this installation configuration in 1998.

The recirculating air in HVAC systems create redundancy in exposing microorganisms and mycotoxins to UVC, ensuring multiple passes so the light energy is effective against large quantities of airborne mycotoxins and cleaning the air your plants live by.

Where are these mycotoxins coming from?

Aspergillus favors environments with ample oxygen and moisture. Most pre-harvest strategies to prevent these mycotoxins involve chemical treatment and are therefore not ideal for the cannabis industry.

Despite the lack of cannabis protocols and guidelines for reducing mycotoxin contamination, there are some basic practices that can be utilized from other agricultural groups that will help avoid the production of aflatoxins and ochratoxins.

When guidelines are applied correctly to the cannabis industry, the threat of aflatoxin and ochratoxin contamination can be significantly reduced. The place to start is a clean air environment.

Design to win

The design of indoor grow rooms for cannabis is critical to the control of airborne fungal spores and although most existing greenhouses allow for the ingress of fungal spores, experience has shown that they can be retrofitted with air filters, fans, and UVC systems to make them relatively free of these spores. Proper designs have shown clearly that:

  1. Prevention via air and surface disinfection using germicidal UVC is much better than chemical spot treatment on the surface of plants
  2. High levels of air changes per hour enhance UVC system performance in reducing airborne spores
  3. Cooling coil inner surfaces are a hidden reservoir of spores, a fertile breeding ground and constitute an ecosystem for a wide variety of molds. Continuous UVC surface decontamination of all coils should be the first system to be installed in greenhouses to reduce mildew outbreaks.

UVC can virtually eliminate airborne contaminants

Steril-Aire graphic 4

Steril-Aire was the first and is the market leader in using UVC light to eliminate mold and spores to ensure your product will not be ruined or test positive.

  1. Mold and spores grow in your air handler and are present in air entering your HVAC system.
  2. Steril-Aire UVC system installs quickly and easily in your existing system.
  3. The Steril-Aire UVC system destroys up to 99.999% of mold/spores.
  4. Plants are less likely to be affected by mold…with a low cost and no down time solution.

It’s time to protect your harvest before it gets sick. It’s time to be confident your yield will not test positive for the contaminants that will render it unusable. It’s time to win the testing battle. It’s time for a proper UVC solution to be incorporated throughout your facilities.

Applications for Tissue Culture in Cannabis Growing: Part 2

By Aaron G. Biros
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In the first part of this series, we introduced Dr. Hope Jones, who took her experience in tissue culture from NASA and brought it to the cannabis industry and C4 Laboratories. We discussed some of the essential concepts behind tissue culture and defined a few basic terms like micropropagation, totipotency, explants and cloning. Now let’s get into some of the issues with cloning from mother plants and the advantages that come with using tissue culture for propagating and cultivating cannabis.

Time & Resources

Dr. Hope Jones, chief scientific officer at C4 Labs

Taking cuttings from mother plants is arguably the most popular method of propagating cannabis plants. It is a process that requires significant real estate, resources and labor. “Moms can take up a great deal of space that is not contributing directly to production,” says Dr. Jones. “I know from experience that scaling up production and/or adding new strains to the production line requires significant time and resources to raise and maintain new healthy and productive mother plants.” Each mother plant produces a limited number of clones per harvest period and over the course of her life cycle.

By using tissue culture, a cultivator can generate an almost infinite number of clones from one plant cutting. With so many growers calculating their costs-per-square-foot, micropropagation is an effective tool to save space, labor and time, thus increasing profit margins. “Just to put it in perspective: Holly Scoggins’ book Plants From Test Tubes, cites a Day Lily cultivator who uses micropropagation to produce 1,000 plants in 30 square feet of shelf space each week,” says Dr. Jones. “Using conventional methods, one would need a half-acre to produce the same amount of plants.” Cultivators can produce a much greater number of plants-per-square-foot by using micropropagation effectively.

Damage from whiteflies, thrips and powdery mildew is all visible on this sick plant.

Early Health & Vigor

Most tissue culture methods use sterilized vessels that contain sugar-rich media to support growth of plantlets before they can photosynthesize on their own. “The media is prepped, poured into vessels, and placed in an autoclave (or pressure cooker) where it is subjected to high temps and pressure to achieve proper sterility.”

The sterile environment and rich growth media supplies plantlets with an abundance of everything they need. “When plantlets emerge from culture, they are pathogen-free, with a stockpile of food and nutrient reserves that support rapid growth and vigor, superior to conventional cuttings,” says Dr. Jones.

Stress & Disease

As any grower knows, mother plants can sometimes experience stress and disease. This might come in the form under or over-watering, heat stress, spider mites, whiteflies, mold and viruses. “Any stress or infection that a mother plant is subjected too can impact progeny health and productivity in a couple of ways,” says Dr. Jones.

Powdery mildew starts with white/grey spots seen on the upper leaves surface
Tobacco Mosaic Virus symptoms can include tip curling, blotching of leaf mosaic patterning, and stunting.

For example, diseases like powdery mildew and tobacco mosaic virus are often systemic, meaning that pathogens have spread to almost every tissue in the plant. Once infected, it is impossible to completely eliminate pathogens from tissues. Therefore any cuttings made from a diseased mother plant, even if they look perfectly healthy, will also be infected and can eventually present disease symptoms like reduced productivity and/or plant death, according to Dr. Jones.

How does tissue culture get around this problem? Remember that explants (small tissue samples used as starting material) can be extracted from any part of the plant. Meristematic cells in shoot tips and leaves are the source of new plant growth. Dr. Jones explains that these cells, and the first set of primordial leaves are not connected directly to the vascular tissue, the plant’s transport system by which pathogens spread. Therefore, meristematic cells tend to be disease-free, whatever the condition of the mother. It takes a sharp blade, a dissecting microscope, and a lot of experience to learn, but as Dr. Jones explains, “harvesting explants from meristems is a routine micropropagation technique used by ‘Big Horticulture.’ One example is the strawberry. Viruses and pathogens are so prevalent that the strawberry industry must use meristematic culture to ensure pathogen free progeny.”

Epigenetics

Now let’s talk about epigenetics. We know that plants don’t have the option of physically moving away from stress or predation. Instead, they have evolved sophisticated ways of changing their own biology to adapt to and/or protect themselves. “Consider what happens to a mom exposed to a pathogen. The infected plant will start expressing (turning on) genes and making proteins that contribute to pathogen resistance,” says Dr. Jones. “These changes to gene expression are partly regulated by epigenetic modifications, chemical changes to DNA that increase or decrease the likelihood a cell will express a particular gene, but that do not actually modify the gene itself. Like annotations to a piece of music, epigenetic modifications don’t change the notes but rather how loud or soft, quickly or slowly the notes are played.”

There are more than 1,000 different viruses and mixed infections are very common

This is where it gets interesting. “Epigenetic modifications can be systemic and long lived. Plants infected by a pathogen or stressed by drought will present widespread epigenetic modifications to their DNA,” says Dr. Jones. “For an annual plant like cannabis, those modifications are relatively permanent. Thus a cutting from a mom having drought or pathogen adapted epigenetic programming will inherit that modified DNA and behave as if it were experiencing that stress, whether present or not.”

In the wild, this adaptability is critical for plant survival and reproduction, but to a grower, this is a less-than-ideal scenario. “The epigenetic modifications allowed the mother to tolerate the stress, which is great from the perspective of survival and fitness, but it comes at a cost. Some of the finite energy and resources that usually support plant growth and reproduction are instead channeled to stress response,” says Dr. Jones. This trade off results in reduction in overall plant yield and quality. “Those epigenetic changes result in a new phenotype for that mother,” says Dr. Jones. “All cuttings from her will reflect the new phenotype. This is one major mechanism underlying what many in the cannabis industry (incorrectly) call ‘genetic drift,’ or the loss of vigor over successive clonal generations.”

This is again where tissue culture can be such a game changer. The process of dedifferentiation, as explained in part 1 of this series, can rejuvenate a “tired” mother plant by inducing a kind of reboot– clearing accumulated epigenetic modifications that negatively impact progeny vigor and productivity. In the third part of this series, we will discuss the five stages of micropropagation, detailing the process of how you can grow plantlets in tissue culture. Stay tuned for more!