Diospyros texana "D. texana" favors riparian zones, prairie margins, and rocky slopes. It prefers well-drained, alkaline soils]. The sapwood of Texas persimmon is clear yellow, while the heartwood, found only in very large trees, is black (ebony), like that of the related "D. ebenum". The heartwood is hard and dense and takes a high polish. It is used to make engraving blocks, artwork, and tools. The fleshy berries are edible and sweet when ripe and are used in puddings and custards; they are also relished by many species of birds and mammals. They were traditionally used by Native Americans to make a
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