The apical meristem of a plant is always clean,,,the idea here is to prevent it from becoming infected with treatment and prior surface cleaning, we then isolate with an explant,,,dumping the original plant stock,,
it's weird..double strand DNA can withstand it, single strand RNA cannot. What im seeing inline with englishricks idea, is just short treatments...like 1 hr. Idk i. Just now trying to get up to speed with him since last night lolWouldn't a 70°C treatment for one day destroy the living plant sample?
Would Physan 20 work to sterilize plant material?Yes growing mushrooms is verry much just growing cell masses and splitting them up. Then dont split and spawn to substrate when you want to make fruit body.
Fuck man a 50% failure rate doesn't seem so great. It was $35USD for a litters worth of pre mixed cannabis media. Thats like 20 containers - $1.75 a jar
I have to do more reading but im gonna start this as soon as i have a handle. I'll start with 10-fill a bunch of jars with loose lids and pressure cook em. Tighten the lids tomorrow in front of the hood and store em in the fridge untill i'm ready to move on.
I have to figure out how to sterilize the plant tissue. Also have to find my forceps...
Do you know how many inches is always clean, and is that just the main stem top growing point or side branching also.The apical meristem of a plant is always clean,,,the idea here is to prevent it from becoming infected with treatment and prior surface cleaning, we then isolate with an explant,,,dumping the original plant stock,,
Im pretty sure it's on every shoot where new growth happens but I would like to know as well how much of the new growth is considered free of pests tissue.Do you know how many inches is always clean, and is that just the main stem top growing point or side branching also.
From what I've read roots or tips should work the sameI'd be interested to know if T.C. could actually be performed where you used root tips rather than the top 1-3 mm of plant growth site.
Root tips would offer more protection from infection than anywhere else.
Extracellular DNA Is Required for Root Tip Resistance to Fungal Infection
Plant defense involves a complex array of biochemical interactions, many of which occur in the extracellular environment. The apical 1- to 2-mm root tip housing apical and root cap meristems is resistant to infection by most pathogens, so growth and gravity ...www.ncbi.nlm.nih.gov
A polymerase chain reaction-based assay showed conclusively that cannabis stem tissues contained a range of fungi. The method allowed the detection of 1 ng/ml of genomic DNA and could be used to screen donor plants to determine the background level of microbial contamination. Similar PCR-based methods have been used to screen mother plants and tissue-cultured plants such as strawberries, sweet potatoes, and roses to ensure they are free of bacteria and fungi (Moreno-Vázquez et al., 2014; University of California Davis, 2008). This approach can be applied to cannabis plants before they are deployed in tissue culture. In addition, if meristem culture of cannabis is used to obtain pathogen-free plantlets, it would have to be accompanied by a similar PCR-based assay to test for the absence of these pathogens. Nodal explant cultivation is unlikely to be free of pathogens given the high levels of internal contamination observed in this study. Therefore, shoots derived from nodal cultures should be avoided because of the potential for contaminants. Meristems represent the explant of choice to obtain pathogen-free plantlets from tissue cultures of C. sativa.
As they said, the critical point are protocols for cannabis tissue culture. Where can we find them?DIY Tissue Culture - Why You Should Be Trying It - Plant Cell Technology
Throughout the realms of biological and scientific advancements over the years, there have been a few standout discoveries that have shaped our industrial and consumer worlds. One of these standouts is the tissue culture process. Whether you are an at-home grower, a small scale agriculturalist...www.plantcelltechnology.com
You are absolutely correct,,thanks for the images,,I probably wouldn't bother myself so It helps alot ,,what he's discussing is apical meristem, this is a root pic but it works the same to represent the growing branch tips.
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Do you know how many inches is always clean, and is that just the main stem top growing point or side branching also.
not far at all, they literally shave that tip like shaving an onion for the skillet.
Some of us got to talking about that heat treatment concept and i think we have one fella that's possibly gonna try it. He decided to dip infected clones in 158degree hot water over a series of days and then if it lives, send in for testing.When I get chance il put the kit out,,,I promise,,,il explain everything and give you all the bits needed
Roots also have totipotency,,so yes roots can grow into a full plant,,,roots need to go through indirect organogenesis,,,meaning it will turn to callus (undifferentiated cells) and then through differentiation it will grow shoots or roots depending on the mediums ratios of auxin to cytokinins
When I get chance il put the kit out,,,I promise,,,il explain everything and give you all the bits needed