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Restrictions in Seaweed Agar-vate Scientists

Thursday, December 17th, 2015
Bivalves from Panama for Dermo disease study

Bivalves from Panama for Dermo disease study

by Heather Soulen

Last week Nature magazine published a news piece about how supplies of agar, a research staple in labs around the world, are dwindling. Agar is a gelatinous material from red seaweed of the genus Gelidium, and is referred to as ‘red gold’ by those within the industry. Insiders suggest that the tightening of seaweed supply is related to overharvesting, causing agar processing facilities to reduce production. Most of the world’s ‘red gold’ comes from Morocco. In the 2000s, the nation harvested 14,000 tons per year. Today, harvest limits are set at 6,000 tons per year, with only 1,200 tons available for foreign export outside the country. In typical supply and demand fashion, distributor prices are expected to skyrocket. As a result, things could get tough for scientists who use agar and agar-based materials in their research.

Agar is a scientist’s Jell-O. Just like grandma used to make Jell-O desserts with fruit artfully arranged on top or floating in suspended animation within a mold, scientists use agar the same way. Bacteria and fungi can be cultured on top of nutrient-enriched agar, tissues of organisms can be suspended within an agar-based medium and chunks of DNA can move through an agarose gel, a carbohydrate material that comes from agar. Agar and agar products are the Leathermans of the science world.

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Orchids: Lullabies and Limericks

Monday, August 10th, 2015

by Heather Soulen

Orchids are cunning little creatures. They create elaborate ruses to puzzle insects, fungi and even (or especially) biologists. Here are a few poems we composed to honor the smartest plants on Earth.

Image: Dragon's Mouth Orchids, Arethusa bulbosa (Credit: Gary Van Velsir)

Dragon’s Mouth Orchids , Arethusa bulbosa (Gary Van Velsir)

Twinkle Orchid

Twinkle, twinkle, little orchid

Let’s get mycorrhiza sorted

Roots with fungus help supply

Sugar and nutrients to make you spry

Twinkle, twinkle, little orchid

Let’s get mycorrhiza sorted

Backstory:

A mycorrhiza is a kind of fungus that grows on orchid roots. In this relationship, the orchid receives water, sugar and nutrients from fungus, and the fungus receives nearly nothing in return. Check out this orchid life cycle poster for more details: Click to continue »