Mineral composition modulates Erwinia amylovora resistance in pear based on path analysis

The effects of mineral composition (N, P, K, Mg, Fe, Cu, and Zn) against fire blight caused by Erwinia amylovora , the most devastating disease of pome fruits, was investigated in pear. Due to the transport physiology of minerals, the leaf contained higher concentrations of every mineral analyzed, e...

Full description

Saved in:
Bibliographic Details
Published in:European journal of plant pathology 2024-07, Vol.169 (3), p.593-599
Main Authors: Mertoğlu, Kerem, Evrenosoğlu, Yasemin, Akkurt, Emre, Yeşilbaş, Mücahit Furkan, Gülmezoğlu, Nurdilek
Format: Article
Language:English
Subjects:
Agriculture
Biomedical and Life Sciences
Blight
Composition
Copper
Disease resistance
Ecology
Erwinia amylovora
Fruits
Life Sciences
Magnesium
Mineral composition
Minerals
Nitrogen
Plant Pathology
Plant Sciences
Statistical analysis
Susceptibility
Zinc
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effects of mineral composition (N, P, K, Mg, Fe, Cu, and Zn) against fire blight caused by Erwinia amylovora , the most devastating disease of pome fruits, was investigated in pear. Due to the transport physiology of minerals, the leaf contained higher concentrations of every mineral analyzed, especially macro-minerals (N, P, K, and Mg) compared to the fruit. Minerals obtained from the leaves were not statistically correlated with resistance to fire blight, however all the minerals examined in the fruit, except for K, were found to be significant. Increased P and Mg concentrations were associated with disease resistance, while N, Zn, Fe, and Cu were associated with susceptibility. Nitrogen-causing susceptibility exerted 61% of this impact through itself directly and was sharply distinguished from other mineral compounds. Furthermore, the indirect effect of nitrogen on disease susceptibility through Cu (39%), Zn (33%), and Fe (30%) was even higher than the direct effect of these minerals (21%, 24%, and 29%, respectively). The direct effects of P (13%) and Mg (10%), which are associated with an increase in resistance, were lower than the indirect effects (19% and 29%, respectively) due to their negative correlation with nitrogen, showing that the main effect of these minerals was in suppressing the negative effects of nitrogen on susceptibility by maintaining mineral balance.
ISSN:0929-1873
1573-8469
DOI:10.1007/s10658-024-02858-5