Category: Biotechnology

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The Breadfruit Story

That’s the title of just one of the sections of an exhibition of botanical watercolours, books and prints about the Caribbean called “Paradise in Print,” currently on at the New York Botanical Garden. The story it refers to, of course, is that of Captain Bligh, Fletcher Christian and the Bounty.

For an update on the story of the breadfruit’s global journey, go to VOA News. You’ll find an interview with — and a cooking demonstration by — my friend and world breadfruit expert Diane Ragone, director of the Breadfruit Institute at the National Tropical Botanical Gardens in Hawaii (both text and video).

The Breadfruit Institute maintains the world’s largest and most complete breadfruit germplasm collection. Diane has dedicated her life to the breadfruit, and in particular the idea that it can make a much greater contribution to the alleviation of hunger around the world. She and her research partners have been working on a tissue culture technique for the mass propagation and safe transfer of germplasm.

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Buffett sweet potato balls

Lets get this part out of the way: search Google for “Buffett sweet potato,” having seen an announcement at Papgren, and the number 3 link is for Buffett sweet potato balls. But that’s not what I was after.

I was after details of a US$3 million grant from the Howard G. Buffett Foundation to the Donald Danforth Plant Science Center to enhance sweet potato for Africa. The project has two aims: to boost resistance to a couple of diseases — sweet potato feathery mottle virus and sweet potato chlorotic stunt virus — and to improve the nutritional content of sweet potatoes, most notably by increasing folate, iron and zinc.

Excellent. Africa needs higher yields and more nutritious diets. I don’t know what approach the Danforth will take, but as they’ve teamed up with the Monsanto company it is possible that there will be some direct manipulation of DNA involved. Again, excellent, because sweet potato is generally reproduced by taking clones — cuttings, actually, often called slips — from parent material, so farmers should be able to distribute any material they receive. But, I wonder, just how many different varieties will the project engineer? And isn’t there a risk that this effort, particularly if it is successful, will blanket Africa with a few genetically similar varieties that do not have the diversity to withstand the next disease epidemic, making that, when it comes, all the more disastrous?

Rhetorical questions, I know, and ones that I’ve asked before. The funny part is, nobody else seems to be asking them. That Google search, in news? Precisely two items, and one of those is essentially the press release. The other is kinda fun.

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Farmers know best?

A comment on a recent post suggested that one should “start with the assumption that farmers know what is in their best interest.” No doubt that is as true of Indian farmers as the rest of us, but unfortunately in many cases there are other pressures out there that mean that you can’t act on your perceived long-term self-interest, or indeed the information on which you can make that determination is not available or turns out to be faulty. As with the sweetleaf item that started this, we don’t know the full story, so we should be careful not to jump to conclusions, but an article in today’s Hindu newspaper describes a decision by farmers that seems to have gone wrong. Agricultural biodiversity, and its associated knowledge, is an important reason – maybe the most important reason – why unfortunate decisions don’t always result in catastrophe.