M. M. EL-Sheekh, H. M. Kotkat, and H. E. Hammouda, “Atrazine herbicide on growth, photosynthesis, protein synthesis, and fatty acid composition in the unicellular green algae Chlorella Kessler,” Ecotocxicol Environ Safety, Vol. 29, pp. 349–358, 1994.
 Z. J. Fan, C. F. Qian, and H. B. Dang, “Study on the bio-assay of maiguning and safety assessment of maiguning to different maize (Zea mays L.),” Chinese Journal of Pesticide Science, Vol.2, pp. 63–70, 2000.
 H. Abou-Waly, M. M. Abou-Setta, H. N. Nigg, and L. L. Mallory, “Growth response of freshwater algae, Ana-baena flos-aquae and Selenastrum capricornutum, to atrazine and hexazinone herbicides,” Bull Environ Con-tam Toxicol, Vol.46, pp. 223–229, 1991.
 K. K. Schrader, M. Q. Regt, P. D. Tidwell, C. S. Tucker, and S. O. Duke, “Compounds with selective toxicity to-wards the off-flavor metabolite-producing cyanobacte-rium Oscillatoria cf. chalybea,” Aquaculture, Vol. 163, pp. 85 91, 1998.
 K. K. Schrader, M. Q. Regt, P. D. Tidwell, C. S.Tucker, and S. O. Duke, “Compounds with selective toxicity to-wards the off-flavor metabolite-producing cyanobacte-rium Oscillatoria cf. chalybea,” Aquaculture, Vol. 163, pp. 85–91, 1998.
 A. Jenssen, “Chlorophyll and carotenoids,” In: Handbook of Phycological Methods. Physiological & Biochemical Methods (Ed. By J. A. Hellebust & J. S. Craigie), Cam-bridge University Press, Cambridge, UK, pp. 59–70, 1978.
 J. Y. Shen and Y. T. Lu, “Effects of herbicides on biodi-versity of rice fields in China,” Pages 56 67 in Proc. Im-pact Assessment of Farm Chemicals Run Off from Paddy Conference, Japan: National Institute for Agro-Environ-mental Sciences, Japan (NIAES) and National Institute of Agricultural Science and Technology, Korea (NIAST), 2005.
 B. Prithiviraj, L. G. Perry, D. V. Badri, and J. M. Vivanco, “Chemical facilitation and induced pathogen resistance mediated by a root-secreted phytotoxin,” New Phytol. Vol. 173, pp. 852–860, 2007.
 J. Y. Shen, Y. T. Lu, and G. H. Cheng, “Effects of chemical herbicides on toxicity of non-target nitrogen- fixing Cyanobacteria in paddy fields,” Pages 665-670 in Proc. 20th Asian-Pacific Weed Science Conference Vietnam: Weed Science Society, Asian-Pacific, 2005.
 A. K. Bhunia, N. K. Basu, D. Roy, A. Chakrabarti, and S. K. Banerjee, “Growth, chlorophyll a content, nitro-gen-fixing ability, and certain metabolic activities of Nostoc muscorum: effect of methylparathion and ben-thiocarb,” Bull Environ Contam Toxicol, Vol. 471, pp. 43–50, 1991.
 Z. J. Fan, J. Y. Hu, Y. W. Ai, C. F. Qian, W. Q. Yu, and Z. M. Li, “Residue analysis and dissipation of monosul-furon in soil and wheat,” Journal Environmental Science (China), Vol. 16, pp. 717–721, 2004.
 J. Y. Shen, D. T. Antonio, M. Q. Shen, W. Luo and Z. M. Li, “Molecular basis for differential metabolic responses to monosulfuron in three nitrogen-fixing cyanobacteria,” Weed Science, Vol. 57, pp. 178 188, 2009.
 G. A. Armstrong, B. S. Hundle, and J. E. Hearst, “Evolu-tionary conservation and structural similarities of carote-noid biosynthesis gene products for photosynthetic and nonphotosynthetic organisms,” Methods Enzymol, Vol. 214, pp. 297–311, 1993.
 P. J. Harrison, P. A. Thompson, and G. S. Calderwood, “Effects of nutrient and light limitation on the biochemi-cal composition of phytoplankton,” Journal of Applied Phycology, Vol. 2, pp. 45 46, 1990.
 E. Marco, F. Martinez, and M. I. Orus, “Physiological alterations induced by the organophosphorus insecticide trichlofon in Anabaena PCC 7119 grown with nitrates,” Environmental and Experimental Botany, Vol. 30, pp. 119–126, 1990.