An airplane maker, an airline and a biofuel company are working together to make fuel ＿＿（37）＿＿ tobacco plant seed oil. The companies are Boeing, South African Airways and SkyNRG. They are using a new tobacco plant ＿＿（38）＿＿ “Solaris.” The Dutch biofuel company SkyNRG developed the plant. It contains less of the drug nicotine than traditional tobacco. Julie Felgar works on environmental issues for Boeing. She said the plant also has many more seeds than traditional tobacco plants ＿＿（39）＿＿ . She said only the oil from the seeds will ＿＿（40）＿＿ to make biofuel now. But researchers are trying to develop ways to use the entire plant to make fuel. Ian Cruickshank is an environmental issues specialist for South African Airways Group. He said the special tobacco permits growth of a marketable biofuel crop without supporting smoking.