A new supply of fresh papayas from Hawaii will reach grocery-store shelves in Japan this year and consumers have biotechnology to thank for it.
The first “Rainbow” papayas–genetically modified to withstand the deadly ringspot virus—are now on sale. They are the first GM food Japan has approved for commercial release.
It represents an important step for a country that has resisted a technology that is now conventional in North and South America and increasingly common in Africa and Asia.
The story of how cutting-edge agriculture defeated disease and saved Hawaiian papayas shows that we have much to gain from GM crops, even as professional protestors peddle scientific ignorance to frighten the public about this essential food source. The rest of the United States may want to pay attention, as voters in California and legislators in more than a dozen states consider burdensome food-labeling laws.
In the middle of the 20th century, as Hawaiian papaya farmers started to enjoy commercial success, the ringspot virus appeared almost out of nowhere to threaten our livelihood. For a while, we were able to contain its spread by destroying infected papaya trees. Yet this was a drastic remedy. One year, I had to cut down half my orchard.
By the 1990s, however, it was almost pointless for Hawaiian farmers to raise papayas. The risk of crop failure was too high. I stopped growing the fruit and so did most of my neighbors.
Meanwhile, scientists worked on the problem. Dennis Gonsalves, then of Cornell University, learned how to take a piece of the ringspot virus and use it to “inoculate” trees, much as vaccines can improve immunity against diseases in people. In 1998, we started to sell GM papayas, which are just as healthy and delicious as the ones they replaced.
This simple innovation saved Hawaiian papayas. The ringspot virus is still out there, ready to wreak havoc–but it won’t infect any of the trees that descend from the innovation of Gonsalves.
Het volledige interview kun je hier lezen. Wie meer info wenst omtrent GGO papaja kan terecht op deze blogpagina van David E. Tribe.
Grass pea (Lathyrus sativus L.) is an important crop in Ethiopia. Its vital importance in the Ethiopian agriculture emanates from its resistance to drought, salinity, waterlogging and low soil fertility. However, low levels of the amino acids methionine and tryptophan and the presence of the neurotoxin β-N-oxalyl-L-α,β-diaminopropanoic acid (ODAP) in the seeds are the major limitations of the crop. Genetic improvement of grass pea in Ethiopia has been started in the 1960s at Holetta Agricultural Research Center. The major objectives of the grass pea research were to develop and promote high-yielding cultivars with low ODAP content coupled with improved management production packages. However, the 50 years of on-station and on-farm research was not successful in producing outstanding varieties with the desired traits. Compared to other grain legumes, the poor success of varietal development endeavours within the context of grass pea improvement philosophy is typically related to the failure of the conventional breeding approach to fix a zero or low ODAP content because this trait is highly influenced by climatic and edaphic environment.

Meer en meer blijkt uit onderzoek dat er niet 1 antwoord is op de toekomstige uitdagingen om aan duurzame landbouw te doen. Geen enkele techniek of landbouwmodel zal alleen alle problemen kunnen oplossen. Meer en meer gaan dan ook stemmen op dat een hybride aanpak de enige mogelijkheid is, waarbij het beste uit de biologische landbouw gecombineerd wordt met het beste uit de conventionele landbouw. Waar plaats is voor een agro-ecologische optimalisatie, maar ook voor de allernieuwste veredelingstechnieken. Geen enkel systeem of techniek kan op zichzelf een totaaloplossing bieden voor de toekomstige uitdagingen.
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