Open AccessAn attempt to determine the resistance of poplars to infection by Chondroplea populea (Sacc. Kłęb.) = Dothichiza populea Sacc. et Briard) on the basis of the composition of epiphytic bacterial microflora
Author(s) -
K. Danilewicz
Publication year - 2015
Publication title -
acta societatis botanicorum poloniae
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 29
eISSN - 2083-9480
pISSN - 0001-6977
DOI - 10.5586/asbp.1975.016
Subject(s) - bacteria , bark (sound) , botany , biology , lignin , epiphyte , composition (language) , pseudomonas putida , pseudomonas , food science , chemistry , microbiology and biotechnology , ecology , linguistics , philosophy , genetics
Epiphytic bacteria isolated from the bark of shoot nodes of two year poplar cuttings hydrolyse chitin whereas those isolated from the internodes do not show this property. The epiphytic microflora of the sensitive variety P. 'Robusta' embraces coryneform bacteria and Pseudomonas which can as a carbon source utilize o-OH benzoic acid, gentisic acid or trans-cinnamic acid in 10-2M concentration. The resistant variety P. 'NE-42' is featured by Pseudomonas capable of catabolizing only genetisic acid in 10-2M con-centration. The ability of the bacteria to grow media containing either water extracts from the bark or phenolic acids (lignin model precursors) is correlated which the aromatic compound composition of the bark and resistance to infection by fungi