Green Options » resistance

Common but Lethal Soil Fungus Becoming Resistant to Antifungals

Michael Ricciardi — Sun, 31 Jan 2010 10:47:37 +0000

Aspergillus fumigatus – a common but sometimes lethal soil fungus

Aspergillus fumigatus is a fungus found commonly in ordinary garden soil. When the spores of the fungus are inhaled, It can also cause disease–sometimes fatally in those with already compromised immune systems and respiratory disease such as COPD. Doctors who treat the illness have long-recognized that in some patients, the fungus is resistant to standard treatment with chemicals called azoles. The problem becomes potentially worse as azoles are also heavily used as farm fungicides. A team of Dutch researchers (Verweij and Kema), reporting in last December’s edition of the medical journal The Lancet Infectious Diseases suggest that over-use of the farm fungicide may be contributing to the growing resistance of this fungus to the disease-fighting chemicals.

Antibiotic Resistant Genes Increasing in Soil Microbes

Michael Ricciardi — Thu, 31 Dec 2009 22:52:55 +0000

Chemical structure of the antibiotic tetracycline–one of the four classes of antibiotics that sampled soil microbes showed increased resistance to in the 2009 Study.

The prevalence of antibiotic resistant genes (ARG) in soil bacteria has been increasing steadily over the past seven decades, despite tighter controls on the use of antibiotics for agricultural purposes (in Europe). This is according to a recent benchmark study/analysis* of soil samples from five sites in the Netherlands. The research team, lead by David Graham of Newcastle University in the UK, found that “Seventy-eight percent of detected resistance genes, associated with four classes of antibiotics, showed increasing levels since 1940.”

Gene Banks to Preserve World’s Crops from Climate Change

Michael Ricciardi — Tue, 24 Nov 2009 22:12:21 +0000

Design of the Svalbard seed vault as of early 2007

In 1992, the Global Biodiversity Convention (GBC) was adopted in Rio de Janeiro, and which placed the biodiversity issue center stage–calling for the world-wide preservation of biodiversity and its equitable and sustainable use. The convention was established in response to both the increasing rate of plant extinction (through habitat loss), fears by poorer nations of “biopiracy”, and the increasing agricultural use of land for high-value crops, to the exclusion of lesser-value ones–a practice that diminishes crop biodiversity. These lesser-value crops are typically grown by independent and small farms in less economically advanced countries. Many of these so-called “orphan crops” risk becoming extinct. Further, many species of plant or tree that fall outside the conventional definition of agriculture–such as the sea-water tolerant mangrove tree–are being ignored, to the possible peril of future agriculture.

Germans Release 117 MPG Diesel Sportscar: Biodiesel, Anyone?

Clayton B. Cornell — Thu, 14 Feb 2008 12:00:33 +0000

The German company Loremo (short for low-resistance mobile) released a turbodiesel sportscar at last September´s Frankfurt International Auto Show capable of a whopping 117 mpg and range of no less than 621 miles. They also plan on hybrid and electric models, and even one that runs on vegetable oil.

High-mileage-sportscar may sound like an oxymoron, and it’s a fair question to ask what was sacrificed to get 117 MPG out of this sleek, sporty-looking turbo-diesel, which is available in two models: a 2-cylinder LS and a 3-cylinder GT.

Besides the cool-looking flip-up lid and snazzy interior, Loremo’s real innovation (if the name was any hint) is based on two fuel economy fundamentals: substantially reducing weight and drag.

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