9 documents found, page 1 of 1
Multi-Marker Approach for the Identification of Different Heterodera Species (N...
Camacho, Maria João; Inácio, Maria L.; Andrade, Eugénia deCyst nematodes of the genus Heterodera are important plant-parasitic nematodes that cause significant crop losses worldwide but are often overlooked due to their non-specific symptoms and complex biology. This study assessed Heterodera diversity in Portugal using an integrative molecular approach based on four genetic markers (mtCOI, 18S rDNA, ITS, and 28S rDNA). Five valid species were identified: Heterodera c...
Root-knot nematode assessment: species identification, distribution, and new ho...
Rusinque, Leidy; Camacho, Maria João; Serra, Clara; Nóbrega, Filomena; Inácio, Maria L.Considered one of the most devastating plant parasitic nematodes worldwide, Meloidogyne spp. (commonly known as the root-knot nematodes (RKNs)) are obligate sedentary endoparasites that establish in the roots, causing hyperplasia and hypertrophy of surrounding cells, triggering the formation of galls. These galls will affect root development and physiology, leading to substantial yield losses. During 2017-2022,...
Plant-nematode co-cultures in the screening of sustainable nematicides against ...
Faria, Jorge M. S.; Vicente, Cláudia S. L.; Rusinque, Leidy; Camacho, Maria João; Inácio, Maria LThe diseases caused by plant parasitic nematodes are still a serious constraint to modern global crop production. An increasing number of active compounds in commercial nematicidal formulations is being banned from use by common policies of pest management. Farmer communities report a low efficiency for the replacement pesticides, which reflects on crop yield and productivity. Novel sustainable biopesticides ar...
Os nemátodes como bioindicadores do status do solo: o projeto MaisSolo
Inácio, Maria Lurdes; Camacho, Maria João; Rusinque, Leidy; Nóbrega, Filomena; Matos, Susete; Almeida, Maria Lurdes; Nunes, Ana PaulaOs sistemas de produção intensivos hortoindustrais do Ribatejo (centro de Portugal) baseiam-se no recurso à monocultura e num elevado grau de intervenções culturais. O projeto MaisSolo, um consórcio formado por agricultores, associações de produtores, investigadores e a academia, teve por objetivo demonstrar que a introdução de culturas de cobertura contribui para a melhoria da estrutura do solo e da sua capaci...
The fight against plant-parasitic nematodes: current status of bacterial and fu...
Pires, David; Vicente, Cláudia; Menéndez, Esther; Faria, Jorge; Rusinque, Leidy; Camacho, Maria João; Inácio, LurdesPlant-parasitic nematodes (PPNs) are among the most notorious and underrated threats to food security and plant health worldwide, compromising crop yields and causing billions of dollars of losses annually. Chemical control strategies rely heavily on synthetic chemical nematicides to reduce PPN population densities, but their use is being progressively restricted due to environmental and human health concerns, ...
First report of Pratylenchus penetrans (Nematoda: Pratylenchidae) associated wi...
Runsique, Leidy; Vicente, Claudia Sofia; Inácio, Maria de Lurdes; Nóbrega, Filomena; Camacho, Maria João; Lima, A; Ramos, Ana PaulaThe world flower business is a highly dynamic industry and in Portugal yields around EUR 500 million a year (INE 2013). Root lesion nematodes (RLNs), Pratylenchus spp., are considered the third most important group of plant parasitic nematodes (PPNs) worldwide due to their large distribution, wide host range, and impact on economically important crops (Castillo and Vovlas 2007). The most recent report of RLNs p...
Nemátode-dos-citrinos: prevenir o declínio lento do pomar
Inácio, Maria de Lurdes; Rusinque, Leidy; Vicente, Claudia; Camacho, Maria JoãoOs citrinos são as fruteiras mais importantes em termos de produção a nível mundial, com cerca de 130 milhões de toneladas produzidas (World Citrus Organisation, 2020), repartin- do-se por mais de 125 países localizados entre os 40° de latitude a norte e a sul do Equador. Entre as várias ameaças à produção citrícola contam-se os nemátodes fitoparasitas. Os nemátodes fitoparasitas são pequenos animais, de aspeto...
Potato Cyst Nematodes: geographical distribution, phylogenetic relationships an...
Camacho, Maria João; Andrade, Eugénia; Mota, Manuel; Nobrega, Filomena; Vicente, Claudia; Rusinque, Leidy; Inácio, Maria LurdesThe identification and phylogenetic relationships of potato cyst nematodes (PCN) were studied to assess the potential value of geographical distribution information for integrated pest management of potato production in Portugal. This research focused on PCN species, Globodera pallida and Globodera rostochiensis. From 2013 until 2019, 748 soil samples from the rhizosphere of different potato cultivars were surv...
NEMÁTODES DE QUISTO DA BATATEIRA – O USO DE VARIEDADES RESISTENTES COMO ESTRATÉ...
Camacho, Maria João; Andrade, Eugénia; Rusinque, Leidy; Vicente, Claudia; Inácio, Maria de LurdesPotato cyst nematodes (PCN), Globodera rostochiensis and G. pallida, are considered harmful quarantine organisms and can be devastating to potato fields if not controlled in a timely manner. Its designation derives from the fact that the female body, after their death, turns into a spherical cyst con- taining the eggs, which are protected from adverse conditions even in the absence of hosts. PCN are present in ...