Publications by authors named "A Chahed"

Ink disease is considered one of the most significant causes contributing to the decline of chestnut orchards. The reduced yield of Mill can be attributed to two main species: and , with the first being the main pathogen responsible for ink disease in Portugal. is a highly aggressive and widely distributed plant pathogen, capable of infecting nearly 1000 host species.

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Background: Phytophthora cinnamomi is an Oomycetes associated with soil, this Oomycete is one of the most destructive species of Phytophthora, being responsible for the decline of more than 5000 ornamental, forest, or fruit plants. It can secrete a class of protein NPP1 (Phytophthora necrosis inducing protein 1), responsible for inducing necrosis in leaves and roots of plants, leading to their death.

Objective: This work will report the characterization of the Phytophthora cinnamomi NPP1 gene responsible for the infection of Castanea sativa roots and will characterize the mechanisms of interaction between Phytophthora cinnamomi and Castanea sativa, by gene silencing NPP1 from Phytophthora cinnamomi mediated by RNAi.

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Tagatose is a rare sugar that suppresses plant diseases, such as late blight of tomato, caused by . Tagatose can be metabolized by some microorganisms and no information is available on its persistence on tomato leaves. The aim of this study was to assess the persistence of tagatose on tomato leaves under commercial greenhouse conditions.

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Background: The increasing availability of multi-omics data is leading to regularly revised estimates of existing biodiversity data. In particular, the molecular data enable novel species to be characterized and the information linked to those already observed to be increased with new genomics data. For this reason, the management and visualization of existing molecular data, and their related metadata, through the implementation of easy-to-use IT tools have become a key point to design future research.

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Tagatose is a rare sugar with no negative impacts on human health and selective inhibitory effects on plant-associated microorganisms. Tagatose inhibited mycelial growth and negatively affected mitochondrial processes in , but not in . The aim of this study was to elucidate metabolic changes and transcriptional reprogramming activated by and in response to tagatose, in order to clarify the differential inhibitory mechanisms of tagatose and the species-specific reactions to this rare sugar.

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