About the Authors

Noa Madar-Balakirski

Affiliation Department of Biological Regulation, The Weizmann Institute of Science, Rehovot, Israel

Catherine Tempel-Brami

Affiliation Department of Biological Regulation, The Weizmann Institute of Science, Rehovot, Israel

Vyacheslav Kalchenko

Affiliation Department of Veterinary Resources, The Weizmann Institute of Science, Rehovot, Israel

Ori Brenner

Affiliation Department of Veterinary Resources, The Weizmann Institute of Science, Rehovot, Israel

David Varon

Affiliation Department of Hematology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel

Avigdor Scherz

Contributed equally to this work with: Avigdor Scherz, Yoram Salomon

Affiliation Department of Plant Sciences, The Weizmann Institute of Science, Rehovot, Israel

Yoram Salomon

Contributed equally to this work with: Avigdor Scherz, Yoram Salomon

yoram.salomon@weizmann.ac.il

Affiliation Department of Biological Regulation, The Weizmann Institute of Science, Rehovot, Israel

Competing Interests

Y.S. and A.S. are the inventors of Tookad; patent owned by the Weizmann Institute of Science, Rehovot, Israel, licensed to STEBA biotech, France (Scherz A, Salomon Y, Scheer H, Brandis A (2003) Palladium-substituted bacteriochlorophyll derivatives and use thereof, US patent 6569846, reference #20 in the manuscript). A.S. and Y.S. serve as consultants to STEBA biotech. This does not alter adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: NMB AS YS. Performed the experiments: NMB CTB VK. Analyzed the data: NMB CTB VK OB AS YS. Wrote the paper: NMB DV AS YS.