A Potential Cure for Citrus Greening Disease

Huanglongbing, or HLB, is the Chinese term for the Yellow Dragon Disease– usually referred to as Citrus Greening.  The disease first appeared in the USA in the Miami area in 2005, and since has spread to every grove.  The disease is a terminal infection of the tree, culminating in its decline and death. Currently there is no cure. The Florida industry is crashing, the disease is found across citrus producing states, including California. Scientists have attempted many strategies to solve the problem, from nutrition to transgenics. The problem is that the most likely solutions do not have public buy-in, as genetic engineering strategies are hampered by a tragic misperception. One solution is an outstanding intermediate. The Citrus Tristeza Virus (CTV) is ubiquitous in citrus trees, now infecting most trees with zero consequences. Scientists have co-opted the virus to deliver an anti-microbial payload, a peptide that may interfere with the bacterium, without harming the plant or making the plant “genetically engineered”.  The solution allows producers to generate “Non-GMO” orange juice while still saving the industry.  Dr. Steve Savage explains the technology and its application.

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The Talking Biotech podcast is distinct from Dr. Kevin Folta's teaching and research roles at the University of Florida. The views expressed on the show are those of Dr. Folta and his guests, and do not reflect the opinions of the university or Colabra.