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Science 12 November 2004:
Vol. 306. no. 5699, p. 1097
DOI: 10.1126/science.306.5699.1097o
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Reactive oxygen species (ROS) are closely associated in plants and animals with disease, stress, and cell death. Wagner et al. now (p. 1183) show in the plant Arabidopsis thaliana that stress reactions formerly attributed to physico-chemical damage caused by one of these ROS, singlet oxygen, is the result of an actively pursued genetic program that requires a chloroplast protein, EXECUTER1. Inactivation of the EXECUTER1 gene was sufficient to protect plants from the damage normally induced by singlet oxygen.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)