| presence of natural genetic resistance in fraxinus excelsior (oleraceae) to chalara fraxinea (ascomycota): an emerging infectious disease. | fraxinus excelsior, common ash native to europe, is threatened by a recently identified pathogenic fungus chalara fraxinea, which causes extensive damage on ash trees across europe. in denmark, most stands are severely affected leaving many trees with dead crowns. however, single trees show notably fewer symptoms. in this study, the impact of the emerging infectious disease on native danish ash trees is assessed by estimating presence of inherent resistance in natural populations. disease sympto ... | 2011 | 20823903 |