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Bioprospection of Cationic and Anionic Antimicrobial Peptides from Bell Pepper Leaves for Inhibition of Ralstonia solanacearum and Clavibacter michiganensis ssp. michiganensis Growth
Author(s) -
Teixeira F. R.,
Lima M. C. O. P.,
Almeida H. O.,
Romeiro R. S.,
Silva D. J. H.,
Pereira P. R. G.,
Fontes E. P. B.,
BaracatPereira M. C.
Publication year - 2006
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.2006.01119.x
Subject(s) - ralstonia solanacearum , clavibacter michiganensis , pepper , biology , antimicrobial , microbiology and biotechnology , botany , horticulture , pathogen
Bioprospection of natural compounds to be used as plant protection offers exciting possibilities in agribusiness. ‘Samara’ (SM) and ‘Sunshine’ (SH) cultivars of bell pepper are resistant against some plant pathogens, and leaf antimicrobial peptides could account for their defence system. In the present study, 5–7 kDa peptides were partially purified from cell wall extract (CWE) of bell pepper leaves and further resolved by ion‐exchange chromatography. The cationic and anionic peptide‐enriched fractions from both SM‐CWE and SH‐CWE strongly inhibited in vitro growth of Ralstonia solanacearum and Clavibacter michiganensis ssp. michiganensis .