Zhixiang Chen Studies a Plant Virus (IMAGE) Purdue University Caption Purdue molecular geneticist Zhixiang Chen is studying a plant virus that causes illness in the same way as human immunodeficiency virus. Cauliflower mosaic virus infected the laboratory plant Arabidopsis on the left. Blocking a gene in the plant on the right prevented infection. Chen's research eventually could lead to new treatments for the plant disease, HIV and other similar illnesses. Credit Purdue University photo/Alex Turco Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.