Diospyros mespiliformis Diospyros mespiliformis Diospyros mespiliformis, the jackalberry (also known as African ebony and by its Afrikaans name jakkalsbessie), is a large dioecious evergreen tree found mostly in the savannas of Africa. Jackals are fond of the fruit, hence the common names. It is a member of the family Ebenaceae, and is related to the true ebony ("D. ebenum") and edible persimmon ("D. kaki"). Mature trees have dark gray fissured bark. An adult tree reaches an average of 4 to 6 metres in height, though occasionally trees reach 25 metres. The foliage is dense and dark green with elliptical leaves, which are
Genetically modified tomato cold and drought tolerance in transgenic "Arabidopsis thaliana" plants, was inserted into the tomato. This resulted in increased drought tolerance, but did not appear to have any effect on cold tolerance. Overexpressing a vacuolar Na/H antiport ("AtNHX1") from "A. thaliana" lead to salt accumulating in the leaves of the plants, but not in the fruit and allowed them to grow more in salt solutions than wildtype plants. They were the first salt-tolerant, edible plants ever created. Tobacco osmotic genes overexpressed in tomatoes produced plants that held a higher water content than wildtype plants increasing tolerance to drought and salt stress.