Resistance to gummosis in wild cashew genotypes in northern Brazil

Moreira, Renato Cesar; Lima, Joílson Silva; Silva, L.G.C.; Cardoso, J. E.

doi:10.1016/j.cropro.2013.04.008

Cited by 11 publications

(9 citation statements)

References 8 publications

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“…Brazilian production in 2013 reached 259 900 t, from a production area of 708 430 ha. In 2016, 12 165 t of cashew nuts were exported generating about US$ 79 M. The north-eastern region of Brazil is responsible for 99 % of the country's production (Agrianual 2015), with the cashew industry in rural areas recognized to be of considerable socio-economic importance (Moreira et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Of the numerous diseases that compromise cashew production, cashew gummosis, which is caused by Lasiodiplodia theobromae, is considered one of the most important diseases for the cashew industry (Cysne et al 2010). This fungal species was first reported on cashew in 1990 (Freire 1991), and was soon recognized as one of the most important diseases of the crop in north-eastern Brazil (Freire et al 2002;Moreira et al 2013). The main symptoms of this disease comprise the appearance of cankers along the trunk or branches, which develop over time and release a characteristic resin-like gum.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of phylogeny, distribution, and pathogenicity of Botryosphaeriaceae species associated with gummosis of Anacardium in Brazil, with a new species of Lasiodiplodia

et al. 2017

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Netto, M. S. B., Lima, W. G., Correia, K. C., da Silva, C. F. B., Thon, M., Martins, R. B., Miller, R. N. G., Michereff, S. J., and Câmara, M. P. S. 2016. Analysis of phylogeny, distribution, and pathogenicity of Botryosphaeriaceae species associated with gummosis of Anacardium in Brazil, with a new species of Lasiodiplodia. We identified Botryosphaeriaceae species associated with gummosis on Anacardium in Brazil. Isolates were sampled and identified on the basis morphology and phylogeny, through analysis of a partial translation elongation factor 1-α sequence, ribosomal DNA internal transcribed spacers, and β-tubulin gene sequence. Ten taxa were identified, namely, Lasiodiplodia brasiliense, L. euphorbicola, L. gonubiensis, L. iraniensis, L. jatrophicola, L. gravistriata sp. nov., L. pseudotheobromae, L. theobromae, Neofusicoccum batangarum, and Pseudofusicoccum stromaticum. Lasiodiplodia theobromae has been previously reported in cashew and is the most prevalent species observed. All the other species are reported here for the first time on this host. All species of Botryosphaeriaceae were pathogenic on detached green cashew shoots. Differences in aggressiveness were observed among the species, with N. batangarum, L. iraniensis, L. jatrophicola, and L. gravistriata characterized as the most aggressive species, whilst L. euphorbicola and L. pseudotheobromae were identified as the least aggressive.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of phylogeny, distribution, and pathogenicity of Botryosphaeriaceae species associated with gummosis of Anacardium in Brazil, with a new species of Lasiodiplodia

et al. 2017

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“…Lasiodiplodia theobromae has been described as a causal agent of cashew gummosis, which has become the most important disease impacting cashew orchards in the semi‐arid conditions of northeastern Brazil. This disease causes damage of up to 30% stand losses in localized orchards in the states of Ceará and Piauí (Cardoso et al ., ), infecting commercial clones of cashew trees (Moreira et al ., ) and causing nut decay (Freire, ). In Spondias , this fungus has been reported affecting all cultivated species at different levels of disease severity, depending on host susceptibility (Lima et al ., ), and it is a seedborne pathogen of soursop (Cardoso et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Diversity of genus Lasiodiplodia associated with perennial tropical fruit plants in northeastern Brazil

et al. 2016

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Until now, only Lasiodiplodia theobromae has been reported in association with gummosis and dieback of cashew plants and other tropical fruit plants in northeastern Brazil. This study aims to identify and characterize species of Lasiodiplodia associated with gummosis and dieback on tropical fruit plants grown in Cear a, Para ıba, Pernambuco, Piau ı and Rio Grande do Norte States in northeastern Brazil with a description of two new species: Lasiodiplodia caatinguensis sp. nov. and Lasiodiplodia pontae sp. nov. Fungal identification was accomplished using a combination of morphophysiological and pathogenic characteristics, together with phylogenetic analyses based on partial translation elongation factor 1-a sequence (TEF1-a), internal transcribed spacer (ITS) and b-tubulin (b-tub). Six species of Lasiodiplodia were identified as being associated with several tropical fruit species: Lasiodiplodia brasiliense (Manilkara zapota, Mangifera indica and Spondias purpurea), L. caatinguensis sp. nov. (Anacardium occidentale, Citrus sinensis, S. purpurea and S. lutea), L. euphorbicola (Annona muricata and Cocos nucifera), L. pontae sp. nov. (A. occidentale and S. purpurea), L. pseudotheobromae (A. occidentale, S. purpurea and Tamarindus indica) and L. theobromae (A. occidentale, S. purpurea and Talisia esculenta). This is the first study to use molecular data of Lasiodiplodia taken from the stems and branches of Annona spp., A. occidentale, M. zapota, T. indica, T. esculenta and Spondias spp. After L. caatinguensis sp. nov., the species L. pseudotheobromae and L. theobromae were the second most frequent species. All identified species were able to cause necrotic lesions at different levels of severity when inoculated on mango fruits and young plants of Annona spp., cashew and Spondias spp.

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“…The cashew areas (Anacardium occidentale L.) are expanding mainly by its great agronomic potential in Brazil and for its potential use of co-products (Moreira et al 2013). The cashew tree is a tree native from Tropical America, producer of edible nuts and succulent stems (pseudofruits) widely consumed by the population of many countries (Leitão et al 2013;Muianga et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Removal of Cd(II), Pb(II) and Cr(III) from water using modified residues of Anacardium occidentale L.

et al. 2018

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The pollution of water has been one of the greatest problems faced by the modern society, due to industrialization and urban growth. Rivers, lakes and seas have been continually suffering from the rising concentration of various pollutants, especially toxic elements. This study aimed to evaluate the use of cashew nut shell (Anacardium occidentale) (CNS), after chemical modification with H 2 O 2 , H 2 SO 4 and NaOH, as an new and renewable adsorbent material, for the removal of metals Cd 2+ , Pb 2+ and Cr 3+ in aqueous medium. The adsorbents were characterized by its chemical constitution, structure, infrared spectroscopy, morphology, by means of scanning electron microscopy, determination of the point of zero charge, thermogravimetrical analysis and porosimetry assessments. Tests were conducted to determine the optimal conditions (pH vs. adsorbent mass) for adsorption, by means of multivariate analysis using a central composite design. The adsorption kinetics was evaluated by models of pseudo-first order, pseudo-second order, Elovich and intraparticle diffusion, while adsorption isotherms were linearized by Langmuir, Freundlich and Dubinin-Radushkevich. The effect of initial concentration, temperature and desorption was also performed. The adsorbents exhibited irregular, spongy and heterogeneous structure. FTIR analysis confirms the presence of hydroxyl, aliphatic, phenolic and carboxylic acid groups, which are favorable adsorption characteristics. The pH PZC of adsorbent is 4.35, 2.50 e 6.92, respectively, for CNS H 2 O 2 , H 2 SO 4 and NaOH. The optimum adsorption conditions were as follows: pH 5.0; relation of adsorbent mass/volume of water: 4 g L −1 ; 40 min of contact time for reaching the equilibration. Results suggest the predominance of chemisorption of Cd 2+ and Cr 3+ . Most of biosorbents exhibited good fit by Langmuir and Freundlich, suggesting the occurrence of adsorption on mono-and multilayers. The adsorbents of cashew nut shell exhibited high removal efficiency of Cd, Pb and Cr from waters.

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Resistance to gummosis in wild cashew genotypes in northern Brazil

Cited by 11 publications

References 8 publications

Analysis of phylogeny, distribution, and pathogenicity of Botryosphaeriaceae species associated with gummosis of Anacardium in Brazil, with a new species of Lasiodiplodia

Analysis of phylogeny, distribution, and pathogenicity of Botryosphaeriaceae species associated with gummosis of Anacardium in Brazil, with a new species of Lasiodiplodia

Diversity of genus Lasiodiplodia associated with perennial tropical fruit plants in northeastern Brazil

Removal of Cd(II), Pb(II) and Cr(III) from water using modified residues of Anacardium occidentale L.

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