Diospyros nigra Diospyros nigra Diospyros nigra, the black sapote, is a species of persimmon. Common names include chocolate pudding fruit, black soapapple and (in Spanish) zapote prieto. The tropical fruit tree is native to eastern Mexico, the Caribbean, Central America, and into Colombia. The common name sapote refers to any soft, edible fruit. Black sapote is not related to white sapote nor mamey sapote. Mature trees can grow to over in height and are evergreen. It is frost sensitive but can tolerate light frosts. The leaves are elliptic-oblong, tapered at both ends, dark green, glossy and long. Some trees bear only male
Genetically modified tomato function of genes naturally present in tomatoes. Wild tomatoes are small, green and largely unappetizing, but after centuries of breeding there are now thousands of varieties grown worldwide. Agrobacterium-mediated genetic engineering techniques were developed in the late 1980s that could successfully transfer genetic material into the nuclear genome of tomatoes. Genetic material can also be inserted into a tomato cell's chloroplast and chromoplast plastomes using biolistics. Tomatoes were the first food crop with an edible fruit where this was possible. Tomatoes have been used as a model organism to study the fruit ripening of climacteric fruit. To understand the mechanisms