March 16, 2008

Agrobacterium-mediated genetic transformation of plants: biology and biotechnology

Agrobacterium-mediated genetic transformation is the dominant technology used for the production of genetically modified transgenic plants. Extensive research aimed at understanding and improving the molecular machinery of Agrobacterium responsible for the generation and transport of the bacterial DNA into the host cell has resulted in the establishment of many recombinant Agrobacterium strains, plasmids and technologies currently used for the successful transformation of numerous plant species. Unlike the role of bacterial proteins, the role of host factors in the transformation process has remained obscure for nearly a century of Agrobacterium research, and only recently have we begun to understand how Agrobacterium hijacks host factors and cellular processes during the transformation process. The identification of such factors and studies of these processes hold great promise for the future of plant biotechnology and plant genetic engineering, as they might help in the development of conceptually new techniques and approaches needed today to expand the host range of Agrobacterium and to control the transformation process and its outcome during the production of transgenic plants.

Source: Current Opinion in Biotechnology, Volume 17, 2006, Pages 147-154

March 5, 2008

5 Foods That Fight Cholesterol

There’s no denying that a healthy diet is the first line of defense against rising cholesterol. “If you eat a predominantly plant-based diet—with lots of fruits and vegetables plus some fish—you are on the right track to keeping your cholesterol at a healthy level,” says Lisa Dorfman, a registered dietitian and spokeswoman for the American Dietetic Association. That said, certain so-called super-foods can actually help lower bad cholesterol and/or increase the good cholesterol. Ideally, you want to shoot for total cholesterol under 200, with LDL (the bad one) under 110 and HDL (the good one) greater than 35.
Try to incorporate more of these foods into your daily diet:

1. Almonds
2. Oatmeal
3. Fish
4. Red wine
5. Soy

Source: Health.msn.com

March 3, 2008

8 Foods You Should Eat Every Day

We should eat 8 foods every day are
1. Spinach
2. Yogurt
3. Tomatoes
4. Carrots
5. Blueberries
6. Black Beans
7. Walnuts
8. Oats

Source: Health.msn.com