We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Adhesion of decay-causing fungal conidia in wounds of Malus ×domestica 'Golden Delicious' apple fruit is influenced by wound age.
- Authors
Filonow, Alexander B.
- Abstract
Wounds are the primary site in apple fruit for infection by conidia of Botrytis cinerea Pers.:Fr. and Penicil lium expansum Link & Thom. The effects of wound shape, wound age, and chemical properties of the wound on conidial adhesion in wounds of Malus ×domestica Borkh. 'Golden Delicious' fruit were investigated. Adhesion was measured after dislodging conidia from wounds using a sonication probe above the wound. In all experiments, conidial adhesion responses were similar for both fungi. Conidial adhesion in puncture wounds was not different from adhesion in slice wounds. Wound age, however, profoundly affected conidial adhesion. Conidia of both fungi exhibited 78.1%–91.9% adhesion in freshly made wounds of both shapes compared with 37.7%–56.6% in 1-d-old wounds. Conidial adhesion increased as wound age increased from 1 to 5 d. Exposure of 1- and 2-d-old wounds to butyl acetate, a volatile constituent of apple fruit, increased conidial adhesion compared with nonexposed wounds. This finding, in addition to results from the histochemical analyses of wounds, the quantification of sugars and total phenolics in water diffusates from wounds, and the measurement of conidial adhesion to wound diffusates, suggested that conidial adhesion in wounds was influenced by altered surface chemistry of wounds as they aged.
- Subjects
APPLE diseases &; pests; PLANT injuries; CONIDIA; ADHESION; BOTRYTIS cinerea; ACETATES
- Publication
Canadian Journal of Botany, 2004, Vol 82, Issue 2, p265
- ISSN
0008-4026
- Publication type
Article
- DOI
10.1139/b03-149