“Doomsday” seed vault to open soon

Posted on January 31st, 2008 in germplasm, news by Anastasia

An effort to protect the world’s germplasm will culminate in the opening of the Svalbard Global Seed Vault on 26 February 2008, as reported by the BBC. This is a great idea, especially as habitat loss combines with climate change. We’re going to loose a lot of species and sub-species, which could leave the food supply vulnerable. Crop breeders use lines from many sources to put together the best varieties. Genetic engineers also need a source of diverse genes. Loosing too many wild and cultivated varieties of food crops could increase the chances of loosing a species to disease, climate change, etc. In other words, without a large enough gene pool, the species might not recover from a disaster.

I do want to point out again that the USDA has had a similar program for years. I actually worked for a branch of it in Maryland. The program is called the National Plant Germplasm System of the Agricultural Research Service (NPGS, ARS). As of 27 Jan 2008, the holdings include: 219 families, 2022 genera, 12486 species, and 484305 ascensions.

Just to give you an idea of the vast size of this program, NPGS has 25600 ascensions of maize from over 100 countries, 1852 ascensions of watermelon from over 70 countries, and 120 ascensions of pineapple from over 20 countries. Each ascension has the following data associated with it: “when the accession was received by the NPGS, the improvement status, reproductive uniformity, all names associated with the accession, intellectual property rights status, availability, general narrative, pedigree narrative, collection site description, source history including people responsible for acquiring, and any observation data.”

These people aren’t just collecting seeds. Seeds from many types of plants have declining germination rates over time, so to keep the lines alive, the seeds have to be planted and new seeds harvested every so often. Some plants, like many types of potatoes, don’t grow well from seed, so have to be grown from a tuber. Others have to be grown from cuttings. These “alternative reproduction methods” of plants make keeping them alive very complicated: the plants have to be re-cut and transferred to new containers every few months.

I’m keen to make this known because I feel that the plant side of the USDA gets ignored. When the USDA is mentioned, it’s usually in a negative light. I hope that people know that the meat side and the plant side of the USDA are entirely different entities.

Farming in Utopia

Posted on January 27th, 2008 in Food, culture, technology by Anastasia

What farming is today, what it should be, and what people think it should be are very different things. Pro-organic, pro-biointensive mini- and maxi-activists have a distinct idea of what they think farming should be, but don’t quite understand all of the ramifications. For the most part, I heartily agree with them, but I do understand (at least some of) the ramifications for our society and our food supply.

The industrial revolution brought people away from their fields and into the cities. More and more mouths need to be fed, but fewer people want to farm. There are a few ways to solve this problem. One is our current system - larger and larger monoculture farms, with every aspect (from seed to grocery store) controlled by fewer and fewer corporations, and farmed by fewer people. In this system, the need to achieve higher and higher yields of a few main crops has caused increased dependence on chemical inputs. These crops aren’t even considered food anymore, having moved to commodity status.  There are, of course, numerous well-known problems with this system. What are the alternatives?

In the dreams of activists, all farms would be small, perhaps 50 acres or less. Farmers would use as little technology as possible in farming (only “natural” pesticides, no fertilizers besides manure and compost, no tilling of the soil, etc) so as to be more “natural”. The crops would be heirloom varieties, with much genetic diversity and never altered with technology. Monocultures would not exist, with plants grown together in systems designed to help keep the soil healthy and share nutrients. Farms would distribute their produce no more than 100 miles from where it was grown.

For example, the gold standard of bio-intensive farming was pioneered by certain Native American tribes. They planted the “three sisters” - corn, squash, and beans. In this ingenious system, the plants deter each other’s pests and fertilize each other.

This system is so great that farmers is the US and other developed countries should be using it, right? Not having to use fertilizer or pesticides would save money, and be better for the environment, right? The activist’s dream seems to be perfect, until we look a bit deeper.
Unfortunately, things just aren’t that simple. As depicted in the picture to the right, a larger square footage needs to be devoted to this style of farming. The crops must be planted, tended to, and harvested by hand because farming equipment would squish the squash. Fertilizer is still needed for all but the most perfect soils, irrigation remains necessary, and pests are still a constant threat. In other words, this method is great for hobbyists or subsistence farmers who have the time to care for their plants by hand. It might even work for CSAs or other small vegetable farms that can use volunteer labor or charge a premium for their produce. It won’t work, however, to feed the millions of people that live nowhere near farms.

So-called organic farming won’t feed the world either. It’s great for many reasons, but is inherently more risky than conventional farming. Recent studies have shown that organic can compete with conventional farming for yield, but that’s in ideal conditions. We have to consider temperature fluctuations, droughts, insect infestations… problems that can be best solved with technology.

Organic farming also requires more labor to produce the same amount of food. Modern society simply is not prepared to have large proportions of the population employed by farming.  Less than 1% of Americans make their living as farmers. With the price of food being so low and the price of land being so high (even before corn ethanol), it is impossible to recruit enough people to become farmers to feed every person with this type of farming method. I don’t forsee huge numbers of people deciding to farm, or forsee the population getting any smaller.

Another problem is that few people eat squash and beans. Unfortunately, food is subject to the laws of supply and demand. Consumers in the US, and increasingly in the rest of the world, want convenience more than they want fresh vegetables. Although things are getting better, Americans in particular still choose grain-fed beef and fried potatoes over whole grains and leafy greens. Huge fields of corn, soy, rice, wheat, and a few other crops are simply a fact of life.

Does that mean we should give up and accept factory farming, row after row of environment and health damaging monocultured crop? Of course not, but there is a way between the ideal organic and ideal corporate farms. Last week, in a wonderful lecture about her small farm in Iowa, Laura Krouse said something profound: her farm is “as organic as it needs to be”. Using ideas from all types of farming is the only way we can meet the demands of the future.

I propose that we find a happy median - intelligent use of technology combined with stewardship. We need to find the best ways to grow enough food without irreversibly damaging our land and water. Genetic engineering can solve many of our problems, but it needs to be carefully applied. I’ll discuss how in future posts.

Finding the Truth

Posted on January 25th, 2008 in culture by Anastasia

The “evidence” against genetic engineering is typically not evidence at all. It is usually hearsay that isn’t backed up by science, a misplacing of blame, or a misunderstanding about farming, biotechnology, or biology in general. This isn’t necessarily the fault of people who believe this “evidence” – the fault lies in the lack of solid science education and with the fearmongering organizations and people that rely on misinformation.

I’m planning a series of posts that will clarify as many of these topics that I can find – from a young plant geneticist’s point of view. Feel free to comment with additional topics that need attention. Please be patient, though, as I do have research and courses that take up a lot of my time.

Carrots that help prevent osteoporosis

Posted on January 14th, 2008 in news, nutrition by Anastasia

Researchers at Texas A&M have developed carrots that have more bio-available calcium than wild-type carrots, according to a press release. Calcium deficiency leads to osteoporosis, which is one of the world’s most common diseases - affecting an estimated 50% of women and 25% of men. This is especially true when dairy is not an option for many people due to cost, allergies, or availability. Vegetables generally do not provide much of the calcium in a healthy diet, so a plant based diet typically must have some other source for calcium, such as diary or calcium fortified foods.

The gene they modified is a transporter that moves calcium into cells, called sCAX1 (N-terminal autoinhibitory domain truncated version of CAtion eXchanger 1). Normally, the gene encodes a sort of label that tells the protein where it should go, attached to the Nitrogen terminal end of the protein. Removing the label lets the transporter accumulate in cells in the edible part of the plant, resulting in higher calcium levels. A similar strategy has been previously used in potatoes.

In a human feeding study, those fed the modified carrots absorbed 41% more calcium than those fed wild-type carrots. As the authors of the study say, this amount of calcium is still not enough to satisfy daily nutritional requirements, but it is a step towards alleviating calcium deficiency.

GMOs are not monsters

Posted on January 12th, 2008 in culture, editorial by Anastasia

London’s Times Online had a great editorial about GMOs this past week, called “Frankenstein foods are not monsters.” It’s a sort of wake-up call to England and Europe, saying that the benefits of genetic engineering far outweigh hypothetical dangers that are based more on gut feeling than science and that still haven’t manifested. Unfortunately, the site’s comment feature isn’t working, but I’d like to give a “Bravo” to

The piece is full of scathing comments directed to detractors. Regarding the anti-GMO fervor:

The world has moved on. Food is no longer frivolous. It is serious and expensive and even if the price surges in wheat, rice and corn abate, the longer-term outlook for food is inflationary, with population growth and affluence stimulating demand for grain while climate change and high energy costs hinder farm output.

A shining example of the benefits of genetic engineering over conventional (and even organic) methods can be found in potatoes that are resistant to blight (the fungus that caused the Irish potato famine in 1845), and this is the example that this author chooses to use.

Resistance is the result of two genes from a wild potato relative. It is possible that modern potatoes could be crossed with the wild relative, but the results would be unpredictable. Many generations of breeding would be necessary to get the hybrid back to what we think of as a potato, and the result still might harbor natural poisons (potatoes are related to nightshade). Biotechnology makes possible a “cut and paste” so we can have blight resistant potatoes right now, without any unwanted genes. Unfortunately, the potatoes will not be available for use in Europe until about 2014 or 2016 - due to the required 8 to 10 years of testing [Farmers Weekly].

What I didn’t know is that potato plants are often sprayed with fungicide as a preventive. Blight prevention is 7% of total growing costs, and includes: “two treatments of Epok (mefenoxam (metalaxyl-M) plus fluazinam), followed by Electis (zoxium + mancozeb) alternating with Ranman TP (cyazofamid plus adjuvant) up until desiccation [Dow UK].” Surely, this huge amount of chemicals can not be better than resistance genes from a wild potato relative!

According to “Eschewing modern fungicides, about 30 per cent of Britain’s organic farmers last year took the Victorian option of spraying bordeaux mixture, a solution of poisonous copper sulphate on their crop.” Copper sulfate is fairly toxic, especially in the long term. It’s certainly not something I’d want to expose anyone to - especially when there is a safe and chemical-free alternative.

The piece is concluded with the following:

There were riots last year in Senegal over food prices. In France, José Bové is on hunger strike to force the Government to ban GM crops. In Europe, we have the technology, the funds and the minds to solve problems, but our hearts are lost in the past.

I ask, who is this José Bové to dictate what other farmers in France and around the world choose to plant? He certainly has the right to choose which foods he wants to eat, what he wants to plant on his land, and even to speak out about his feelings on the subject - but I think it’s absolutely amoral to use your public influence to make people’s lives more difficult. The people hurt by his ramblings aren’t Monsanto and Syngenta (happily making money in the US, Latin America, and Asia) but poor farmers in Africa and India that could really benefit from the higher yields and decreased chemical inputs that genetic engineering has to offer. People like José Bové are all complaints and no solutions, which is not a very productive way to be.

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