Response of Sorghum Accessions from Four African Countries against Colletotrichum sublineolum, Causal Agent of Sorghum Anthracnose
Louis K. Prom, John Erpelding, Ramasamy Perumal, Thomas Isakeit, Hugo Cuevas
DOI: 10.4236/ajps.2012.31014   PDF   HTML   XML   4,520 Downloads   7,538 Views   Citations


Seventy-two sorghum accessions were randomly selected from the Ethiopia, Mali, Sudan, and Uganda germplasm collections maintained by the US National Plant Germplasm System to evaluate variation in anthracnose resistance. The accessions were planted in a randomized complete block design in College Station, Texas during the 2007 and 2008 growing seasons. Twenty-six accessions exhibited a resistant response across growing seasons with 8 accessions showing a susceptible response. Twenty-nine accessions showed variation in disease response within and between experiments. Seven accessions were rated as resistant in 2007 but showed a susceptible reaction in 2008. The frequency of resistant germplasm varied based on country of origin with 80% of the accessions from Mali, 48% of the accessions from Uganda, 24% of the accessions from Sudan, and 7% of the accessions from Ethiopia exhibiting a resistance response. When the same accessions were evaluated in Isabela, Puerto Rico, 100% of the accessions from Mali, 43% of the accessions from Uganda, and 28% of the accessions from Sudan exhibited a resistant response. All the accessions from Ethiopia were susceptible to anthracnose when evaluated in Isabela, Puerto Rico. In both locations, 22 accessions exhibited a resistant response. Four accessions rated as resistant in Texas were found to be susceptible in Puerto Rico; whereas, five accessions rated as resistant in Puerto Rico showed a susceptible response in Texas. These results indicated that the Mali, Sudan, and Uganda sorghum collections may be an important source of anthracnose resistance. However, the identification of anthracnose resistant germplasm from many diverse regions could result in the identification of new sources of genetic variation for resistance. Also, greater genetic variation for resistance could be present in regions with a high frequency of resistant germplasm.

Share and Cite:

L. Prom, J. Erpelding, R. Perumal, T. Isakeit and H. Cuevas, "Response of Sorghum Accessions from Four African Countries against Colletotrichum sublineolum, Causal Agent of Sorghum Anthracnose," American Journal of Plant Sciences, Vol. 3 No. 1, 2012, pp. 125-129. doi: 10.4236/ajps.2012.31014.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] M. E. K. Ali and H. L. Warren, “Physiological Races of Colletotrichum graminicola on Sorghum,” Plant Disease, Vol. 71, No. 5, 1987, pp. 402-404. doi:10.1094/PD-71-0402
[2] K. F. Cardwell, P. R. Hepperly and R. A. Frederiksen, “Pathotypes of Colletotrichum graminicola and Seed Transmission of Sorghum Anthracnose,” Plant Disease, Vol. 73, No. 3, 1989, pp. 255-257. doi:10.1094/PD-73-0255
[3] S. Pande, L. K. Mughogho, R. Bandyopadhyay and R. I. Karunakar, “Variation in Pathogenicity and Cultural Characteristics of Sorghum Isolates of Colletotrichum graminicola in India,” Plant Disease, Vol. 75, No. 8, 1991, pp. 778-783. doi:10.1094/PD-75-0778
[4] C. Sherriff, M. J. Whelan, G. M. Arnold and J. A. Bailey, “rDNA Sequence Analysis Confirms the Distinction between Colletotrichum graminicola and C. sublineolum,” Mycological Research, Vol. 99, No. 4, 1995, pp. 475-478. doi:10.1016/S0953-7562(09)80649-7
[5] R. P. Thakur and K. Mathur, “Anthracnose,” Compendium of Sorghum Diseases, The American Phytopathological Society, St. Paul, 2000, pp. 10-12.
[6] H. K. Ngugi, A. M. Julian, S. B. King and B. J. Peacocke, “Epidemiology of Sorghum Anthracnose (Colletotrichum sublineolum) and Leaf Blight (Exserohilum turcicum) in Kenya,” Plant Pathology, Vol. 49, No. 1, 2000, pp. 129-140. doi:10.1046/j.1365-3059.2000.00424.x
[7] C. R. Casela, A. S. Ferreira and R. E. Schaffert, “Physiological Races of Colletotrichum graminicola in Brazil,” Sorghum and Millets Diseases, International Crops Research Institute for the Semi-Arid Tropics, Patancheru, 1992, pp. 209-212.
[8] J. E. Erpelding and L. K. Prom, “Evaluation of Malian Sorghum Germplasm for Resistance against Anthracnose,” Plant Pathology Journal, Vol. 3, No. 2, 2004, pp. 65-71. doi:10.3923/ppj.2004.65.71
[9] L. K. Prom, R. Perumal, J. E. Erpelding, T. Isakeit, N. Montes-Garcia and C. Magill, “A pictorial Technique for Mass Screening of Sorghum Germplasm for Anthracnose (Colletotrichum sublineolum) Resistance,” The Open Agriculture Journal, Vol. 3, 2009, pp. 20-25.
[10] A. Chala, T. Alemu, L. K. Prom and A. M. Tronsmo, “Effect of Host Genotypes and Weather Variables on the Severity and Temporal Dynamics of Sorghum Anthracnose in Ethiopia,” Plant Pathology Journal, Vol. 9, No. 1, 2010, pp. 39-46. doi:10.3923/ppj.2010.39.46
[11] J. E. Erpelding and L. K. Prom, “Variation for Anthracnose Resistance within the Sorghum Germplasm Collection from Mozambique, Africa,” Plant Pathology Journal, Vol. 5, No. 1, 2006, pp. 28-34. doi:10.3923/ppj.2006.28.34
[12] J. E. Erpelding and L. K. Prom, “Response to Anthracnose Infection for a Subset of Ethiopian Sorghum Germplasm,” Journal of Agriculture of the University of Puerto Rico, Vol. 93, No. 3-4, 2009, pp. 195-206.

Copyright © 2022 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.