Anthracnose: The sophisticated rot

Date
2015-12-01
Authors
Vaillancourt, Lisa
Torres, Maria
Ghaffari, Noushin
Buiate, Ester
Schwartz, Scott
Johnson, Charles
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The mold fungus Colletotrichum graminicola causes anthracnose, one of the most economically damaging corn diseases worldwide. Anthracnose can occur either as a stalk rot (ASR), or a leaf blight (ALB) (4; 27). The leaf blight phase is generally insignificant in North America as a cause of yield loss, although in the tropics and subtropics it is much more important. Resistance to ASR is usually not correlated with resistance to ALB, complicating efforts to breed resistant corn varieties (2; 4). Resistance to ASR and ALB is mostly quantitative, although sources of major gene resistance have been described (10; 29). Hybrids containing some of these major-gene resistance sources are likely to become available for management of ASR in the near future.

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