With a history of human use of over 7,000 years,garlic (Allium sativum) is native to central Asia and has long been a staple in the Mediterranean region,as well as a frequent seasoning in Asia,Africa,and Europe. It was known to ancient Egyptians,and has been used for both culinary and medicinal purposes. Fresh leaves were fixed,dehydrated and gold-coated for SEM examination of stomata,i.e.,openings which ensure gas exchange (oxygen and carbon dioxide). Enhanced SEM. Image width: 98.5 micrometers. Magnification: 1015x if the image is printed 10 cm wide |