Effects of Fertilization on Epicuticular Wax Formation and on the Susceptibility to Lophodermella sulcigena of Scots Pine : Shoot and Foliage Diseases in Forest Trees. Proceedings of a Joint Meeting of the Working Parties Canker and Shoot Blight of Conifers (S2.06.02) Foliage Diseases (S2.06.04)

Florenz

Universita degli Studi di Firenze

1995

S. 57-61

9 Lit. Ang.

Bandaufführung

77393

Shoot and Foliage Diseases in Forest Trees : Proceedings of a Joint Meeting of the Working Parties Canker and Shoot Blight of Conifers (S2.06.02) Foliage Diseases (S2.06.04) : Shoot and Foliage Diseases in Forest Trees, S. 57-61

Epicuticular wax of Scots pine needles supplied with different fertilizers were studied with scanning electron microscope. Lophodermella sulcigena had infected pines. Degradation of the wax was observed especially in the epistomatal chambers of the needles of diseased trees. Amorphous wax may enable penetration of Lophodermella sulcingena by keeping stomatas open. Independent of the infection, quantity of epicuticular wax was more altered than the quality. Thus the nutrient status of the trees may have affected the activity of wax synthesis.