1971 said:

so a place i'd like to vend to tests for pathogenic molds along with thc, cbd, and cbn quantities. i guess that is what i am trying to determine is if PM shows up in this capacity. i'd assume PM dies when the plant is dried?

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1971 said:

so basically nothing really works all that great for PM... great

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Seamaiden said:

Sorry moodster, you will (eventually) see PM again, even using Eagle 20. It's known to create resistance.

You see my thread on apple farmers having problems with fungi resistant to the treatments of preference? They're going backwards. Hold on... lemme find it, link it.

Here we go:

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motherlode said:

not misreading - you said because we used eagle 20 the PM is going to come back

Im pretty sure it would have by now - gone through 2 winters since I eradicated that shit

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Science Daily said:

"One particularly ingenious attacker, powdery mildew, can even reprogram cells in such a way that they adapt their architecture and metabolism to accommodate the fungus. The plant thus actively fosters the in-growth of the harmful mildew and even supplies it with nutrients," explains Prof. Ralph Hückelhoven from the TUM Chair of Phytopathology. How the mildew manages this manipulation and which plant components are involved in the process is still largely shrouded in mystery.

Hückelhoven's team of researchers has now succeeded in unraveling a part of the mystery. With the support of colleagues from Gatersleben, Gießen and Erlangen, the Weihenstephan scientists identified two proteins in barley that powdery mildew takes advantage of during its "hostile takeover" of living plant cells. Together, the two protein substances steer development processes in the plant cell. In barley, for instance, they are responsible for the growth of root hairs. The one protein, called RACB, is a molecular switch, which reacts to signals from outside to initiate a structural and metabolic response in the plant cells. In particular, it is involved in enlarging the plant cell surface during the growth process. The other protein, called MAGAP1, serves as its counterpart and can prevent or locally limit these activities in the cell.


The researchers observed just how the RACB protein supported the fungus during plant in-growth. A basic function of the protein, increasing the surface of the plant cell membranes, provides a gateway for attack: RACB fosters the increase in cell surface while the mildew is invading, thereby leaving the plant cell intact while still supporting the fungus. Hückelhoven's team was able to demonstrate that the plant becomes less susceptible to powdery mildew when the protein is missing. Hückelhoven explains: "That is how the fungus benefits from this barley protein. RACB makes it easier for powdery mildew to push its haustoria, or feeding organs, into the attacked cell, to then take control of the barley cell." The scientists suspect that the fungus manages to take control of the plant's signal chain from outside -- remotely, so to speak -- to open the door to the plant's nutrients.

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