Cercospora kikuchii

The purple speck disease of soybeans is caused by the fungus Cercospora kikuchii, and additional cash crops such as tobacco, com, sugar, and coffee are damaged by fungi from the genus Cercospora [3]. Cercosporin (3, Chart 7.1), initially isolated in 1957 from Cercospora kikuchii and subsequently from other Cercospora species, was found to be the phototoxin responsible for the destructive nature of the pathogen [4]. For these reasons, the natural product was extensively studied, yet its structure was not elucidated until the 1970s [5]. 

Cercospora kikuchii degrades lipoxygenase in the seed coat but not in the cotyledons (Velicheti et al., 1992). Seed infection by C. kikuchii may (Pathan et al., 1989 ... 

Fig. 4.3. Soybean seed with purple seed stain caused by Cercospora kikuchii. (Photo courtesy of S. Vann)...

Cai, G. R. Schneider. Vegetative compatibility groups in Cercospora kikuchii, the causal agent of Cercospora leaf blight and purple seed stain in soybean. Phytopathol. 2005, 95, 257-261. Chandrasekaran, A. K. Rajappan. Effect of Colletotrichum truncatum seed infection on seed weight and seedling vigor of soybean. Plant Dis. Res. 2002, 17,17,—Ti. 

Fujita, Y. Ecology and control of purple seed stain of soybean caused by Cercospora kikuchii. Bulletin of the Tohoku National Agricultural Experiment Station 1990, 51-109. 

Gain, J.A. R.D.C. Panizzi S.A. Fessel F. de Simoni M.F. Ito. Effect of Colletotrichum dematium var. truncata and Cercospora kikuchii on soybean seed germination. Revista Brasileira De Sementes 2005,27, 182-187. 

Jackson, E.W. P. Fenn P.Y. Chen. Inheritance of resistance to purple seed stain caused by Cercospora kikuchii in PI 80837 soybean. Crop Sci. 2006, 46, 1462—1466. 

Orth, C.E. W. Schuh. Resistance of 17 soybean cultivars to foliar, latent, and seed infection by Cercospora kikuchii. Plant Dis. 1994, 78, 661-664. 

Pathan, M.A. J.B. Sinclair R.D. McGlary. Effects of Cercospora kikuchii on soybean seed germination and quality. Plant Dis. 1989, 73, 720-723. 

Taira, H. H. Taira Y. Kokubu S. Otake. Suitability of food processing on purple specked soybean seeds by Cercospora kikuchii (in Japanese). National Food Res. Inst. Annual Report 1990, 36, 14-20. 

Upchurch, R. Genetic regulation of cercosporin production in Cercospora kikuchii. J. Am. Oil Chem. Soc. 1995, 72, 1435-1438. 

Velicheti, R. K. Kollipara J. Sinclair T. Hymowitz. Selective degradation of proteins by Cercospora kikuchii and Phomopsis longicolla in soybean seed coats and cotyledons. Plant Dis. 1992, 76, 779-782. 

Wilcox, J. T. Abney. Effects of Cercospora kikuchii on soybeans. Phytopathology 1973, 63, 796-... 

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