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Study: Root Bacteria Boosted CBGA 27% and Cut THC 16% in Hydroponic Cannabis Plants

The Marijuana Herald - Marijuana news and information Rhizobacteria. A new study published by Plant Physiology from researchers at Leiden University in the Netherlands found that plant growth-promoting rhizobacteria, or PGPR, can colonize marijuana roots and meaningfully shift how the plant produces and preserves cannabinoids, including increasing the key precursor CBGA while reducing THC. Researchers tested four PGPR taxa—Bacillus, Pseudomonas…
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The Marijuana Herald broke the news in on Saturday, January 24, 2026.
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