Resistência genética à mancha-bacteriana em genótipos de pimentão

Costa, Renato da Gama-Rosa; Rodrigues, Rosana; Sudré, Cláudia Pombo

doi:10.1590/s0102-05362002000100016

Cited by 11 publications

(8 citation statements)

References 5 publications

(7 reference statements)

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“…Accession UENF 1421 (not pungent) is susceptible to bacterial spot and has characteristics of fruit production and quality that meet market standards. Accession UENF 1381 (pungent) is a C. annuum pepper and has been used as resistance source to bacterial spot in a sweet pepper breeding program of the Centro de Ciências e Tecnologias Agropecuárias (CCTA) of the Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF) (Costa et al 2002, Riva et al 2004) . The generation sequence was developed from F 2 by the Single Seed Descent (SSD) method (Brim 1966, Bueno et al 2001, Borém 2001.…”

Section: Methodsmentioning

confidence: 99%

“…One microliter (μL) was withdrawn and added to 100 mL of distilled water, adjusting the concentration to 10 5 ufc μL -1 . The plants were inoculated 56 days after transplanting, by the method of infiltration of bacterial suspension into the mesophyll (Bongiolo Neto et al 1986, Costa et al 2002, Riva et al 2004.…”

Section: Methodsmentioning

confidence: 99%

“…Studies on resistance to bacterial spot in sweet pepper, involving knowledge on genetic control, the identification of resistance sources and search for resistant cultivars have been carried out abroad and in Brazil (Cook and Stall 1963, Stall and Cook 1966, Costa et al 2002, Riva et al 2004Juhász et al 2006, RivaSouza et al 2007.…”

Section: Introductionmentioning

confidence: 99%

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Genetic parameters and selection for resistance to bacterial spot in recombinant F6 lines of Capsicum annuum

Riva-Souza¹,

Rodrigues²,

Sudré³

et al. 2009

CBAB

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Genetic parameters and selection for resistance to bacterial spot in recombinant F6 lines of Capsicum annuum

Riva-Souza¹,

Rodrigues²,

Sudré³

et al. 2009

CBAB

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“…When assessing the resistance to BS, accession UENF 1381 (Costa et al, 2002;RivaSouza et al, 2007) was used as a resistance standard, and Jalapeño M as a susceptible cultivar (control) . For resistance to anthracnose, we only used the susceptible cultivar, 'Ikeda', as a control since there are no C. gloeosporioides resistant genotypes (Diao et al, 2017).…”

Section: Genotypesmentioning

confidence: 99%

“…The latter is the most effective among the control measures. Several studies have aimed to understand the interaction between Capsicum and Xanthomonas (Jones et al, 2004;Vallejos et al, 2010;Ryan et al, 2011;Potnis et al, 2012), seeking for resistance sources (Costa et al, 2002;Riva-Souza et al, 2009;Moreira et al, 2013) by characterization of the gene expression (Jones et al, 1998;Riva et al, 2004b;Kiss et al, 2016), genetic inheritance (Riva et al, 2004a), developing molecular markers for resistance genes (Holdsworth and Mazourek, 2015), and use of transgenics (Zipfel and Jones, 2015). Despite these studies, few pure line cultivars that are resistant to BS are available in the seed market.…”

Section: Introductionmentioning

confidence: 99%

Research Article Multiple genetic resistances in Capsicum spp.

Bento¹,

Souza²,

Sudré³

et al. 2017

Genet. Mol. Res.

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ABSTRACT. This study aimed to identify Capsicum genotypes with resistance to bacterial spot (BS), anthracnose and Pepper yellow mosaic virus (PepYMV). Fifty-four genotypes of Capsicum spp were evaluated. Resistance reaction against BS was evaluated using three replicates, testing hypersensitivity and quantitative resistance in leaves. After evaluation, inoculated leaves were detached from the plants, being then cultivated until reproductive stage for evaluations anthracnose resistance in immature and mature fruit, totalizing 18 fruits per genotype. For PepYMV resistance was performed with five replications. Each genotype reaction was evaluated by a scoring scale, using the area under the disease progress curve for each pathosystem, and incubation period for the three systems. The latent period was evaluated only for the pathosystem Capsicum-Colletotrichum gloeosporioides. Means were grouped by the Scott-Knott test. Measures of dissimilarity matrix among the genotypes were obtained by Gower's algorithm and the grouping was obtained by the UPGMA clustering method. The accessions belonging to the Capsicum frutescens were the most susceptible to the three diseases. At least one genotype of Capsicum baccatum var. pendulum, Capsicum annuum, and Capsicum chinense showed resistance potential to BS and PepYMV, for use in breeding programs. The accession UENF 1381 (C. annuum) was resistant to the three pathogens.

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Biotive protease inhibitor from leaves of Capsicum annuum L.: Potential use as an antifungal molecule against Colletotrichum scovillei

et al. 2023

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Background: A diverse set of antimicrobial molecules have been found mainly in the seeds and fruits of Capsicum annuum UENF1381, accession resistant to different phytopathogenic microorganisms, like bacteria of the genus Xanthomonas and fungi of the genus Colletotrichum. However, there is little information about the defense mechanisms in other plant organs. The work aimed to study the induction of resistance in leaves and roots of C. annuum through the identification and characterization of antimicrobial peptides against Colletotrichum scovillei, one of the main pathogens of the crop.Results: Based on the results of differential protein expression in response to infection, the extracts, LC 48 (Control Leaf mock inoculated 48 h), and RC 48 (Control Root mock inoculated 48 h) were selected. Analysis on the HPLC system resulted in 23 fractions (L1 to L23) obtained from the LC 48 extract and 27 fractions from the RC 48 extract (R1 to R27). Our results show that 10 μg mL À1 of the L1 fraction is able to inhibit 88.4% of fungal growth, causing cell membrane permeabilization, endogenous reactive oxygen species induction and mitochondrial activity reduction. The peptide in the L1 fraction, named CaLPI, showed similarities with different sequences of proteinase inhibitors. Conclusion:The study provides information on the diversity of antimicrobial proteins and peptides present in the leaves and roots of C. annuum UENF1381. With these results, we hope to contribute to the use of peptides as potential molecules in microbial control.

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Resistência genética à mancha-bacteriana em genótipos de pimentão

Cited by 11 publications

References 5 publications

Genetic parameters and selection for resistance to bacterial spot in recombinant F6 lines of Capsicum annuum

Genetic parameters and selection for resistance to bacterial spot in recombinant F6 lines of Capsicum annuum

Research Article Multiple genetic resistances in Capsicum spp.

Biotive protease inhibitor from leaves of Capsicum annuum L.: Potential use as an antifungal molecule against Colletotrichum scovillei

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