Diospyros ebenum Diospyros ebenum Diospyros ebenum, or Ceylon ebony, is a species of tree in the genus Diospyros and the family Ebenaceae. The tree produces valuable black wood. This middle-high evergreen tree grows very slowly up to tall. The leaves are entire-like and have a prolonged oval form, about long and wide. The fruit is not very big, approximately in diameter. It resembles small persimmon fruit. Sap wood is light yellowish gray. The wood core is glossy-black seldom with occasional light fibers. This wood with metallic gloss also has fine and smooth texture. The wood grains can be straight, a bit chaotically
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.