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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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