Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/59138
Type: Artigo de periódico
Title: Pathogenicity of two Pratylenchus coffeae populations from Brazil on coffee plants
Author: Inomoto, MM
Kubo, RK
Silva, RA
Oliveira, CMG
Tomazini, MDT
Mazzafera, PM
Abstract: There is limited information on the influence of Pratylenchus coffeae on the growth and development of coffee plants, in spite of the widespread occurrence of this nematode in coffee plantations. In addition, populations of P. coffeae vary in morphological and molecular features, as well as reproductive fitness and pathological potential. The objective of the present study was to compare the pathogenicity of two Brazilian P. coffeae populations, K-5 from Coffea arabica roots and M-2 from Aglaonema sp. roots, in terms of their influence on the plant growth and photosynthesis of Arabian coffee (C. arabica). Five experiments were conducted in controlled conditions, and the results demonstrated that K-5 is pathogenic on coffee, as it can reproduce and causes obvious damage on the plant. Moreover K-5 proved to be very virulent on Arabian coffee, considering its effects on seedling mortality, plant growth and photosynthesis. By contrast, M-2 was considered to be of low virulence, or even non-pathogenic, on coffee because it failed to reproduce. Thus, the results indicate that K-5 and M-2 may be distinct species, supporting the hypothesis of previous authors.
Subject: Coffea arabica
diversity
pathogenicity
photosynthesis
plant growth
root-lesion nematode
Country: Holanda
Editor: Brill Academic Publishers
Rights: aberto
Identifier DOI: 10.1163/156854107782331144
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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