Coffee resistance to Colletotrichum kahawae is associated with lignification, accumulation of phenols and cell death at infection sites
Histological and ultrastructural studies were undertaken to compare Colletotrichum kahawae growth and the sequence of responses it induced in resistant and susceptible coffee genotypes. Coffee resistance was characterized by a restricted fungal growth associated with hypersensitive-like cell death and early accumulation of phenolic compounds, such as flavonoids (cytoplasmic contents) and hydroxycinnamic acid derivatives (cell walls). This accumulation of phenols in the cell walls preceded their lignification and thickening. In the susceptible genotype, a late accumulation of hydroxycinnamic acid derivatives in a number of cell walls and the encasement of some intracellular hyphae were also observed, but these delayed host responses did not prevent fungal growth and sporulation.
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Subjects: | H20 - Maladies des plantes, Coffea arabica, Coffea canephora, Colletotrichum, composé phénolique, http://aims.fao.org/aos/agrovoc/c_1721, http://aims.fao.org/aos/agrovoc/c_1723, http://aims.fao.org/aos/agrovoc/c_1761, http://aims.fao.org/aos/agrovoc/c_5772, |
Online Access: | http://agritrop.cirad.fr/562243/ http://agritrop.cirad.fr/562243/1/document_562243.pdf |
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dig-cirad-fr-5622432024-01-28T19:48:56Z http://agritrop.cirad.fr/562243/ http://agritrop.cirad.fr/562243/ Coffee resistance to Colletotrichum kahawae is associated with lignification, accumulation of phenols and cell death at infection sites. Loureiro Andreia A., Nicole Michel, Varzea Victor, Moncada P., Bertrand Benoît, Silva M.C.. 2012. Physiological and Molecular Plant Pathology, 77 (1) : 23-32.https://doi.org/10.1016/j.pmpp.2011.11.002 <https://doi.org/10.1016/j.pmpp.2011.11.002> Coffee resistance to Colletotrichum kahawae is associated with lignification, accumulation of phenols and cell death at infection sites Loureiro, Andreia A. Nicole, Michel Varzea, Victor Moncada, P. Bertrand, Benoît Silva, M.C. eng 2012 Physiological and Molecular Plant Pathology H20 - Maladies des plantes Coffea arabica Coffea canephora Colletotrichum composé phénolique http://aims.fao.org/aos/agrovoc/c_1721 http://aims.fao.org/aos/agrovoc/c_1723 http://aims.fao.org/aos/agrovoc/c_1761 http://aims.fao.org/aos/agrovoc/c_5772 Histological and ultrastructural studies were undertaken to compare Colletotrichum kahawae growth and the sequence of responses it induced in resistant and susceptible coffee genotypes. Coffee resistance was characterized by a restricted fungal growth associated with hypersensitive-like cell death and early accumulation of phenolic compounds, such as flavonoids (cytoplasmic contents) and hydroxycinnamic acid derivatives (cell walls). This accumulation of phenols in the cell walls preceded their lignification and thickening. In the susceptible genotype, a late accumulation of hydroxycinnamic acid derivatives in a number of cell walls and the encasement of some intracellular hyphae were also observed, but these delayed host responses did not prevent fungal growth and sporulation. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/562243/1/document_562243.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.pmpp.2011.11.002 10.1016/j.pmpp.2011.11.002 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pmpp.2011.11.002 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.pmpp.2011.11.002 |
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H20 - Maladies des plantes Coffea arabica Coffea canephora Colletotrichum composé phénolique http://aims.fao.org/aos/agrovoc/c_1721 http://aims.fao.org/aos/agrovoc/c_1723 http://aims.fao.org/aos/agrovoc/c_1761 http://aims.fao.org/aos/agrovoc/c_5772 H20 - Maladies des plantes Coffea arabica Coffea canephora Colletotrichum composé phénolique http://aims.fao.org/aos/agrovoc/c_1721 http://aims.fao.org/aos/agrovoc/c_1723 http://aims.fao.org/aos/agrovoc/c_1761 http://aims.fao.org/aos/agrovoc/c_5772 |
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H20 - Maladies des plantes Coffea arabica Coffea canephora Colletotrichum composé phénolique http://aims.fao.org/aos/agrovoc/c_1721 http://aims.fao.org/aos/agrovoc/c_1723 http://aims.fao.org/aos/agrovoc/c_1761 http://aims.fao.org/aos/agrovoc/c_5772 H20 - Maladies des plantes Coffea arabica Coffea canephora Colletotrichum composé phénolique http://aims.fao.org/aos/agrovoc/c_1721 http://aims.fao.org/aos/agrovoc/c_1723 http://aims.fao.org/aos/agrovoc/c_1761 http://aims.fao.org/aos/agrovoc/c_5772 Loureiro, Andreia A. Nicole, Michel Varzea, Victor Moncada, P. Bertrand, Benoît Silva, M.C. Coffee resistance to Colletotrichum kahawae is associated with lignification, accumulation of phenols and cell death at infection sites |
description |
Histological and ultrastructural studies were undertaken to compare Colletotrichum kahawae growth and the sequence of responses it induced in resistant and susceptible coffee genotypes. Coffee resistance was characterized by a restricted fungal growth associated with hypersensitive-like cell death and early accumulation of phenolic compounds, such as flavonoids (cytoplasmic contents) and hydroxycinnamic acid derivatives (cell walls). This accumulation of phenols in the cell walls preceded their lignification and thickening. In the susceptible genotype, a late accumulation of hydroxycinnamic acid derivatives in a number of cell walls and the encasement of some intracellular hyphae were also observed, but these delayed host responses did not prevent fungal growth and sporulation. |
format |
article |
topic_facet |
H20 - Maladies des plantes Coffea arabica Coffea canephora Colletotrichum composé phénolique http://aims.fao.org/aos/agrovoc/c_1721 http://aims.fao.org/aos/agrovoc/c_1723 http://aims.fao.org/aos/agrovoc/c_1761 http://aims.fao.org/aos/agrovoc/c_5772 |
author |
Loureiro, Andreia A. Nicole, Michel Varzea, Victor Moncada, P. Bertrand, Benoît Silva, M.C. |
author_facet |
Loureiro, Andreia A. Nicole, Michel Varzea, Victor Moncada, P. Bertrand, Benoît Silva, M.C. |
author_sort |
Loureiro, Andreia A. |
title |
Coffee resistance to Colletotrichum kahawae is associated with lignification, accumulation of phenols and cell death at infection sites |
title_short |
Coffee resistance to Colletotrichum kahawae is associated with lignification, accumulation of phenols and cell death at infection sites |
title_full |
Coffee resistance to Colletotrichum kahawae is associated with lignification, accumulation of phenols and cell death at infection sites |
title_fullStr |
Coffee resistance to Colletotrichum kahawae is associated with lignification, accumulation of phenols and cell death at infection sites |
title_full_unstemmed |
Coffee resistance to Colletotrichum kahawae is associated with lignification, accumulation of phenols and cell death at infection sites |
title_sort |
coffee resistance to colletotrichum kahawae is associated with lignification, accumulation of phenols and cell death at infection sites |
url |
http://agritrop.cirad.fr/562243/ http://agritrop.cirad.fr/562243/1/document_562243.pdf |
work_keys_str_mv |
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1792497995912052736 |