16 documents found, page 1 of 2
Endophytic Fungi as Potential Biological Control Agents against Grapevine Trunk...
Almeida, Ãngela; Concas, Johnatan; Campos, Maria; Materatski, Patrick; Varanda, Carla; Patanita, Mariana; Murolo, sergio; Felix, MariaGrapevine trunk diseases (GTDs) are the most widespread fungal diseases, affecting grapevines in all the major growing regions of the world, and their complete eradication is still not possible. Aiming to search alternatives to avoid the spread and high incidence of these diseases, the present work intended to molecularly identify the grapevine endophytic community, the phytopathogenic fungi associated with GTD...
Metagenomic analysis of fungal microbiota associated to grapevine trunk disease...
Patanita, Mariana; Campos, Maria; Albuquerque, Andre; Varanda, Carla; Materatski, Patrick; Felix, MariaGrapevine trunk diseases (GTDs) are considered among the most important problems affecting the longevity and productivity of vineyards in all the major growing regions of the world, causing important economic losses. They are caused by wood inhabiting fungi, namely by 133 species belonging to 9 families and 34 genera, with similar life cycles and epidemiology. Until now, no effective treatments are known. Aimin...
The dual role of Plant Viruses in CRISPR
Varanda, Carla; Felix, Maria; Campos, Maria; Patanita, Mariana; Materatski, PatrickPlant viruses cause devastating diseases in many agriculture systems, being a serious threat for the provision of adequate nourishment to a continuous growing population. At the present there are no chemical products that directly target the viruses, and their control rely mainly on preventive sanitary measures to reduce viral infections that, although important, have proved to be far from enough. The current m...
Tomato - a model plant to study molecular resistance mechanisms to pathogens
Campos, Maria; Felix, Maria; Patanita, Mariana; Materatski, Patrick; Varanda, CarlaTomato (Solanum lycopersicum) is one of the most economically important vegetable throughout the world. It is one of the best studied cultivated dicotyledonous plants, often used as model system for plant research into classical genetics, cytogenetics, molecular genetics and molecular biology. Tomato cultivation has been limited by an abundance of infectious diseases, that reduce yield and affect product qualit...
Antagonism of Trichoderma on the control of Fusarium spp. on Phaseolus lunatus L
Barreto, G; Santos, A; Porcino, M; Materatski, Patrick; Varanda, Carla; Felix, Maria; Nascimento, LucianaBiological control strategies have become an important tool in the sustainable management of plant diseases. This paper aims to report the Fusarium species that affect fava beans (Phaseolus lunatus L.) grown in Para ba, Brazil, and determines the potential of Trichoderma isolates to control these fungi. Two Trichoderma and ten Fusarium isolates from fava bean seeds were selected. The beans were obtained from cu...
First Report of Wilt of Syzygium malaccensis Caused by a Member of the Fusarium...
Farias, Otilia; Cruz, J; Veloso, J; Silva, H; Oliveira, M; Felix, Maria; Varanda, Carla; Materatski, patrick; Podesta, G; Nascimento, LucianaMalay apple trees (Syzygium malaccensis [L.] Merryl & Perry) are a plant species widely distributed throughout the north and northeast of Brazil, where they contribute to smallholder farmers’ income. In November 2017, a disease caused the death of several Malay apple plants in Areia, Para ıba state, Brazil. The disease symptoms included darkening of the vascular bundles, root rot, wilt, and defoliation followed...
An Overview of the Application of Viruses to Biotechnology
Varanda, Carla; Felix, Maria; Campos, Maria; Materatski, PatrickViruses may cause devastating diseases in several organisms; however, they are simple systems that can be manipulated to be beneficial and useful for many purposes in different areas. In medicine, viruses have been used for a long time in vaccines and are now being used as vectors to carry materials for the treatment of diseases, such as cancer, being able to target specific cells. In agriculture, viruses are b...
A Bipartite Geminivirus with a Highly Divergent Genomic Organization Identified...
Materatski, Patrick; Jones, Susan; Patanita, Mariana; Campos, Maria; Dias, Antonio; Felix, Maria; Varanda, CarlaOlea europaea Geminivirus (OEGV) was recently identified in olive in Italy through HTS. In this work, we used HTS to show the presence of an OEGV isolate in Portuguese olive trees and suggest the evolution direction of OEGV. The bipartite genome (DNA-A and DNA-B) of the OEGV-PT is similar to Old World begomoviruses in length, but it lacks a pre-coat protein (AV2), which is a typical feature of NewWorld begomovi...
Plant Viruses: From Targets to Tools for CRISPR
Varanda, Carla; Felix, Maria; Campos, Maria; Patanita, Mariana; Materatski, PatrickPlant viruses cause devastating diseases in many agriculture systems, being a serious threat for the provision of adequate nourishment to a continuous growing population. At the present, there are no chemical products that directly target the viruses, and their control rely mainly on preventive sanitary measures to reduce viral infections that, although important, have proved to be far from enough. The current ...
Tomato spotted wilt virus genes expressed in antisense orientation and their ab...
Pires, Vanessa; Dandlen, Susan; Nolasco, Gustavo; Felix, Maria; Materatski, Patrick; Varanda, Carla; Marques, NataliaTomato spotted wilt virus (TSWV) is a member of the Tospoviridae family and is ranked among the top ten economically important viruses in the world. The genome of TSWV consists of three linear negative-sense or ambisense RNA segments, denoted as segments L, M and S. Segment S RNA encodes the silencing suppressor NSs, and the nucleocapsid protein N. Segment M RNA encodes the cell-to-cell movement protein NSm and...