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Scientifically advanced solutions for chestnut ink disease

On the north regions of Portugal and Spain, the Castanea sativa Mill. culture is extremely important. The biggest productivity and yield break occurs due to the ink disease, the causal agent being the oomycete Phytophthora cinnamomi. This oomycete is also responsible for the decline of many other plant species in Europe and worldwide. P. cinnamomi and Phytophthora cambivora are considered, by the generality of ...

Cloning, characterization and in vitro and in planta expression of a glucanase ...

Oomycetes from the genus Phytophthora are fungus-like plant pathogens that are devastating for agriculture and natural ecosystems. They are able to secrete a glucanase inhibitor protein (GIP) that inhibits the activity of endoglucanases (EGases) involved in defense responses against infection. One of the most widely distributed and aggressive Phytophthora species, with more than 1,000 host plants is P. cinnamom...

Transglutaminases: recent achievements and new sources

Transglutaminases are a family of enzymes (EC 2.3.2.13), widely distributed in various organs, tissues, and body fluids, that catalyze the formation of a covalent bond between a free amine group and the γ-carboxamide group of protein or peptide-bound glutamine. Besides forming these bonds, that exhibit high resistance to proteolytic degradation, transglutaminases also form extensively cross-linked, generally in...

Methodological deepening for flood-risk analysis in cross-border regions : a ca...

Le Conseil du 23 novembre 2006 a approuvé la directive du Parlement Européen relative à l’évaluation et à la gestion des risques d’inondation. Le Conseil admet que « les crues sont des phénomènes naturels qui peuvent être évités » et reconnaît la nécessité de réduire les risques associés aux inondations, spécialement pour la santé, l’environnement, le patrimoine culturel, les activités économiques et les infras...

Isolation and Sequencing of Actin1, Actin2 and Tubulin1 Genes Involved in Cytos...

Oomycetes from the genus Phytophthora are fungus-like plant pathogens that are devastating for agriculture and natural ecosystems. On the Nordeste Transmontano region (northeast Portugal), the Castanea sativa chestnut culture is extremely important. The biggest productivity and yield break occurs due to the ink disease, caused by Phytophthora cinnamomi which is one of the most widely distributed Phytophthora sp...

Characterization of molecular factors from plants pathogen Phytophthora cinnamo...

The culture of the chestnut tree is extremely important in the northern region of Portugal, occupying a significant proportion of useful agricultural area. The annual average chestnut production in Portugal can reach 20 000 tons. New plantation areas have increased in the last few decades. However the ink disease caused by the oomycete Phytophthora cinnamomi has damage and killed many trees and up to now no con...

Isolation and characterization of necrosis-inducing phytophthora protein 1 (npp...

Oomycetes from the genus Phytophthora are fungus-like plant pathogens that are devastating for agriculture and natural ecosystems. Due to their particular physiological characteristics, no efficient treatments against diseases caused by these microorganisms are presently available. To develop such treatments, it appears essential to dissect the molecular mechanisms that determine the interaction between Phytoph...

Cloning and expression analysis of glucanase genes from Phytophthora cinnamomi

Cloning and expression analysis of glucanase genes from Phytophthora cinnamomi

Phytophthora cinnamomi is one among the most destructive species of Phytophthora associated to the decline of forestry, ornamental and fruit species. Associated with this oomycete is the ink disease of Castanea sativa Mill. Glucan endo-1,3-β-D-glucosidase catalyzes the hydrolysis of 1,3-β-D-glucoside linkages in callose, laminarin and several carbohydrates found in the cell wall of plants and fungi. It is gener...

Characterization of transglutaminase elicitor precursor from plants pathogen P...

The oomycetes form a phylogenetically distinct group of eukaryotic microorganisms that includes some of the most notorious pathogens of plants. Among these, members of the genus Phytophthora cause enormous economic losses on crop species as well as environmental damage in natural ecosystems. Phytophthora cinnamomi is the most widely distributed Phytophthora species, with nearly 1000 host species.