Concepts in plant disease resistance

Vale, Francisco; Parlevliet, J.E.; Zambolim, Laércio

doi:10.1590/s0100-41582001000300001

Cited by 95 publications

(43 citation statements)

References 62 publications

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“…In general, the rapid evolution of new virulent pathotypes, on previously resistant cultivars, forced breeders into producing replacement cultivars with new R genes (Pink, 2002). Thus, although this type of resistance is the most frequently deployed in plant breeding, the great disadvantage is that it is often non-durable (Vale et al, 2001;Lindhout, 2002;Niks and Rubiales, 2002;Parlevliet, 2002).…”

Section: Specificity Of Host Resistancementioning

confidence: 99%

Coffee resistance to the main diseases: leaf rust and coffee berry disease

Silva

Várzea

Guerra‐Guimarães

et al. 2006

Braz. J. Plant Physiol.

176

141

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Considerable success has been obtained in the use of classical breeding to control economically important plant diseases, such as the coffee leaf rust and the coffee berry disease (CBD). There is a strong consensus that growing genetically resistant varieties is the most appropriate cost effective means of managing plant diseases and is one of the key components of crop improvement. It has also been recognized that a better knowledge of both, the pathogens and the plant defence mechanisms will allow the development of novel approaches to enhance the durability of resistance. After a brief description of concepts in the field of plant disease resistance, we attempt to give a view of the research progress on coffee leaf rust and CBD concerned with the pathogens infection and variability, coffee breeding for resistance and coffee resistance mechanisms. Key words: Coffea, Colletotrichum kahawae, Hemileia vastatrix, coffee breeding, resistance.Resistência do cafeeiro para suas principais doenças: ferrugem alaranjada das folhas e antracnose dos frutos: Sucesso considerável tem sido obtido no uso do melhoramento clássico para o controle de doenças de plantas economicamente importantes, tais como a ferrugem alaranjada das folhas e a antracnose dos frutos do cafeeiro (CBD). Há um grande consenso de que o uso de plantas geneticamente resistentes é o meio mais apropriado e eficaz em termos de custos do controle das doenças das plantas, sendo também um dos elementos chave do melhoramento da produção agrícola. Tem sido também reconhecido que um melhor conhecimento do agente patogênico e dos mecanismos de defesa das plantas permitirá o desenvolvimento de novas abordagens no sentido de aumentar a durabilidade da resistência. Após uma breve descrição de conceitos na área da resistência das plantas às doenças, nesta revisão tentou-se dar uma idéia do progresso na investigação da ferrugem alaranjada do cafeeiro e do CBD relativamente ao processo de infecção e variabilidade dos agentes patogênicos, melhoramento do cafeeiro para a resistência e mecanismos de resistência do cafeeiro. Palavras-chave: Coffea, Colletotrichum kahawae, Hemileia vastatrix, melhoramento do cafeeiro, resistência.

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Section: Specificity Of Host Resistancementioning

confidence: 99%

Coffee resistance to the main diseases: leaf rust and coffee berry disease

Silva

Várzea

Guerra‐Guimarães

et al. 2006

Braz. J. Plant Physiol.

176

141

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“…The second type is incomplete (or partial) resistance, which leads to the development of red brown (RB) lesions. According Parlevliet [47] and Ribeiro Do Vale [48], incomplete resistance allows some growth or reproduction of the pathogen in the host tissues. Finally, the tan colored lesions (TAN), indicative of susceptibility [49].…”

Section: Resistancementioning

confidence: 99%

Asian Soybean Rust Resistance: An Overview

Rosa¹

2015

J Plant Pathol Microbiol

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“…The elicitors bind specifically to the plant Pattern Recognition Receptors (PRRs). This activates the PRRs and triggers a signal-transduction pathway leading to expression of the plant R gene to be expressed [44]. This ultimately results in recognition of the pathogen by the plant to be destroyed.…”

Section: Introductionmentioning

confidence: 99%

Identification, Mapping and Pyramiding of Genes/Quantitative Trait Loci (QTLs) for Durable Resistance of Crops to Biotic Stresses

Mekonnen¹,

Haileselassie²,

Tesfaye³

2017

J Plant Pathol Microbiol

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Biotic stresses significantly limit global crop production. Identification and use of resistant cultivars is currently seen as the best strategy, cheapest, durable and environmentally friendly method to manage biotic stresses. However, resistance gained through single gene/quantitative trait loci (QTLs) transfer leads to resistance breakdown within a short period. Hence, current breeding programs targeted at developing durable and/ broad spectrum resistant cultivars by pyramiding multiple resistant genes/QTLs. Despite its significant contributions to crop improvement, gene pyramiding through conventional breeding suffers from being laborious, time consuming, costly and less efficient. Recently, the use of modern molecular tools like molecular markers and genetic engineering has dramatically enhanced the gene pyramiding strategy for biotic stress resistance. Molecular markers are very helpful for precise identification, mapping and introgression of multiple desirable genes/QTLs underlying trait of interest. Moreover, Genetic engineering has enabled scientists to transfer novel genes from any source into plants in a single generation to develop cultivars with the desired agronomic traits. Therefore, the current paper targeted to review the different types of biotic stress resistance in plants and the methodologies for identification, mapping and pyramiding of resistance genes/QTLs to develop durable and/or broad spectrum biotic stress resistant cultivars. So far, numerous crops with durable/broad spectrum resistance to pathogens, insect pests and herbicides have been developed by pyramiding multiple resistant genes/QTLs using marker assisted selection and genetic engineering techniques to contribute to increased crop production and productivity to maintain food security globally.

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Concepts in plant disease resistance

Cited by 95 publications

References 62 publications

Coffee resistance to the main diseases: leaf rust and coffee berry disease

Coffee resistance to the main diseases: leaf rust and coffee berry disease

Asian Soybean Rust Resistance: An Overview

Identification, Mapping and Pyramiding of Genes/Quantitative Trait Loci (QTLs) for Durable Resistance of Crops to Biotic Stresses

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