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Changes in the Aggressiveness and Fecundity of Hot Pepper Anthracnose Pathogen (Colletotricum acutatum) under Elevated CO2 and Temperature over 100 Infection Cycles
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  • Journal title : The Plant Pathology Journal
  • Volume 32, Issue 3,  2016, pp.260-265
  • Publisher : Korean Society of Plant Pathology
  • DOI : 10.5423/PPJ.NT.09.2015.0183
 Title & Authors
Changes in the Aggressiveness and Fecundity of Hot Pepper Anthracnose Pathogen (Colletotricum acutatum) under Elevated CO2 and Temperature over 100 Infection Cycles
Koo, Tae-Hoon; Hong, Sung-Jun; Yun, Sung-Chul;
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We observed the changes in aggressiveness and fecundity of the anthracnose pathogen Colletotrichum acutatum on hot pepper, under the ambient and the twice-ambient treatments. Artificial infection was repeated over 100 cycles for ambient ( ) and twice-ambient ( ) growth chamber conditions, over 3 years. During repeated infection cycles (ICs) on green-pepper fruits, the aggressiveness (incidence [% of diseased fruits among 20 inoculated fruits] and severity [lesion length in mm] of infection) and fecundity (the average number of spores per five lesions) of the pathogen were measured in each cycle and compared between the ambient and twice-ambient treatments, and also between the early (ICs 31-50) and late (ICs 81-100) generations. In summary, the pathogen's aggressiveness and fecundity were significantly lower in the late generation. It is likely that aggressiveness and fecundity of C. acutatum may be reduced as global and temperatures increase.
ambient ;climate change;pathogenicity;reproductive fitness;twice-ambient ;
 Cited by
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