Erzinger GS, Wohllebe S, Vollrath F, Souza SC, Richter P, Lebert M, Häder DP (2011)
Publication Status: Published
Publication Type: Journal article
Publication year: 2011
Publisher: Springer Verlag (Germany)
Book Volume: 109
Pages Range: 781-786
Journal Issue: 3
DOI: 10.1007/s00436-011-2322-7
Recently, it was demonstrated that mosquito larvae can be killed by means of photodynamic processes after the larvae have incorporated the photosensitizer chlorophyllin or pheophorbid, and were treated with light. The water-soluble substances were applied to and incorporated by the larvae in darkness. With Chaoborus sp. a dark incubation of about 3 h is sufficient to yield mortality of about 90% and a parts per thousand yen6 h resulted in almost 100% mortality during subsequent illumination. Temperature did not influence mortality of the larvae significantly in a treatment of 6 h dark incubation and subsequent 3 h illumination. At 10A degrees C, 20A degrees C, or 30A degrees C, between 80% and 100% of the treated larvae died when the light intensity from a solar simulator was above 30 W/m(2). Lower irradiances were less effective. The LD(50) value of magnesium chlorophyllin was about 22.25 mg/l and for Zn chlorophyll 17.53 mg/l, while Cu chlorophyll (LD(50) 0.1 mg/l) was shown to be toxic also without light. Chlorophyllin, which was lyophilized immediately after extraction, was far more lethal to the larvae (LD(50) 14.88 mg/l) than air-dried Mg chlorophyllin.
APA:
Erzinger, G.S., Wohllebe, S., Vollrath, F., Souza, S.C., Richter, P., Lebert, M., & Häder, D.-P. (2011). Optimizing conditions for the use of chlorophyll derivatives for photodynamic control of parasites in aquatic ecosystems. Parasitology Research, 109(3), 781-786. https://doi.org/10.1007/s00436-011-2322-7
MLA:
Erzinger, Gilmar Sidnei, et al. "Optimizing conditions for the use of chlorophyll derivatives for photodynamic control of parasites in aquatic ecosystems." Parasitology Research 109.3 (2011): 781-786.
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