Interactive effects of elevated ozone and carbon dioxide on growth and yield of leaf rust-infected versus non-infected wheat

Tiedemann, Andreas von; Firsching, K. H.

doi:10.1016/s0269-7491(99)00214-6

Cited by 87 publications

(55 citation statements)

References 21 publications

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“…At multiple scales, plant organs may increase in size: Increased leaf area, increased leaf thickness, higher numbers of leaves, higher total leaf area per plant, and stems and branches with greater diameter have been observed under elevated CO 2 (117). Enhanced photosynthesis, increased water use efficiency, and reduced damage from ozone are also reported under elevated CO 2 (139). Since many foliar pathogens benefit from denser plant growth and the resulting more humid microclimate (27), there is the potential for these changes in plant architecture to increase infection rates, all else being equal.…”

Section: Plant Responses In General: At the Level Of The Individualmentioning

confidence: 99%

“…But combining the direct effects of elevated CO 2 on plants with the effects on disease will make predictions of plant productivity even more challenging. For example, von Tiedemann & Firsching (139) found that benefits from elevated CO 2 counterbalanced negative effects from ozone but did not compensate for the effects of fungal infection. In a study of plant disease in tallgrass prairie, Mitchell et al (89,91) found that elevated CO 2 increased the pathogen load of C3 grasses, perhaps due to increased leaf longevity and photosynthetic rate.…”

Section: Host-pathogen Interaction Responses To Climate Change Gene Ementioning

confidence: 99%

See 1 more Smart Citation

Climate Change Effects on Plant Disease: Genomes to Ecosystems

Garrett

Dendy

Frank

et al. 2006

Annu. Rev. Phytopathol.

804

536

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Research in the effects of climate change on plant disease continues to be limited, but some striking progress has been made. At the genomic level, advances in technologies for the high-throughput analysis of gene expression have made it possible to begin discriminating responses to different biotic and abiotic stressors and potential trade-offs in responses. At the scale of the individual plant, enough experiments have been performed to begin synthesizing the effects of climate variables on infection rates, though pathosystemspecific characteristics make synthesis challenging. Models of plant disease have now been developed to incorporate more sophisticated climate predictions. At the population level, the adaptive potential of plant and pathogen populations may prove to be one of the most important predictors of the magnitude of climate change effects. Ecosystem ecologists are now addressing the role of plant disease in ecosystem processes and the challenge of scaling up from individual infection probabilities to epidemics and broader impacts.

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Section: Plant Responses In General: At the Level Of The Individualmentioning

confidence: 99%

Section: Host-pathogen Interaction Responses To Climate Change Gene Ementioning

confidence: 99%

Climate Change Effects on Plant Disease: Genomes to Ecosystems

Garrett

Dendy

Frank

et al. 2006

Annu. Rev. Phytopathol.

804

536

View full text Add to dashboard Cite

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“…The increase in the ozone (O 3 ) concentration was studied by Tiedemann & Firsching (2000) in combination with CO 2 increase, for spring wheat plants infected or not with leaf rust disease (Puccinia recondita f. sp. tritici).…”

Section: Atmospheric Carbon Dioxidementioning

confidence: 99%

Climate change and plant diseases

Ghini¹,

Hamada²,

Bettiol³

2008

Sci. agric. (Piracicaba, Braz.)

126

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Human activities are altering greenhouse gas concentrations in the atmosphere and causing global climate change. In the near future, there will certainly be changes in the Brazilian phytosanitary scenario attributed to global climate change. The impacts of climate change can be positive, negative or neutral, since these changes can decrease, increase or have no impact on diseases, depending on each region or period. These impacts will also be observed on plants and other organisms as well as on other agroecosystem components. However, these impacts are not easily determined, and consequently, specialists from several areas must go beyond their disciplinary boundaries and placing the climate change impacts in a broader context. This review focuses on the discussion of different aspects related to the effects of climate change on plant diseases. On the geographical and temporal distribution of diseases, a historical context is presented and recent studies using data of forecast models of future climate associated with disease simulation models are discussed in order to predict the distribution in future climate scenarios. Predicted future disease scenarios for some crops in Brazil are shown. On the effects of increasing concentrations of atmospheric CO 2 and other gases, important aspects are discussed of how diseases change under altered atmospheric gases conditions in the future. The consequences of these changes on the chemical and biological control of plant diseases are also discussed. Key words: CO 2 , global climate change, global warming, spatial analysis, control MUDANÇAS CLIMÁTICAS E DOENÇAS DE PLANTASRESUMO: As atividades antrópicas estão alterando as concentrações de gases de efeito estufa da atmosfera e causando mudanças no clima do planeta. Certamente, num futuro próximo, devido às mudanças climáticas globais, ocorrerão modificações no cenário fitossanitário brasileiro. Os impactos podem ser positivos, negativos ou neutros, pois as mudanças podem diminuir, aumentar ou não ter efeito sobre as doenças, em cada região ou época. Esses impactos também serão observados sobre as plantas e outros organismos, além de outros componentes do agroecossistema. Porém, esses impactos não são facilmente determinados e, desta forma, os especialistas das diferentes áreas precisam ir além de suas disciplinas e abordar os impactos das mudanças climáticas em um contexto mais amplo. Nessa revisão são discutidos os aspectos relacionados com os efeitos das mudanças climáticas sobre as doenças de plantas. Na distribuição geográfica e temporal das doenças, um contexto histórico é apresentado, incluindo estudos recentes utilizando dados de modelos de previsão do clima futuro associados com modelos de simulação da doença a fim de predizer a distribuição nos cenários climáticos futuros. Também são apresentados os cenários futuros de previsão de doenças de algumas culturas no Brasil. Sobre os efeitos do aumento da concentração de CO 2 atmosférico e outros gases são discutidos importantes aspectos do comportamento das doe...

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“…Second, there is only rudimentary information on the interactions of individual factors that collectively infl uence plant disease in a changing climate. For example, recent studies showed that the impacts of ozone in the fi eld cannot be estimated without considering the predisposing effects of fungal infections and the compensating effects derived from elevated CO 2 (von Tiedemann and Firsching 2000 ). Third, impacts on plant disease have largely been considered in small-scale experiments.…”

Section: Discussionmentioning

confidence: 99%

“…Researchers have reported both increased (Sandermann 2000 ) and decreased (Coleman et al 1988 ) disease susceptibility in plants after ozone exposure. According to von Tiedemann and Firsching ( 2000 ), ozone effects on plant disease susceptibility may be strongly altered by interfering factors such as plant developmental stage, nutrient supply, and other atmospheric trace gases. Most air pollutants indirectly infl uence diseases through their effect on host.…”

Section: Ozonementioning

confidence: 99%

Impacts on Plant Pathogens

Reddy

2014

Climate Resilient Agriculture for Ensuring Food Security

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Changes in atmospheric composition and global climate continue in the future as predicted, there will be relocation of crops and their diseases and impacts will be felt in economic terms from crop loss. Changes in levels of CO 2 , ozone, and UV-B will infl uence disease by modifying host physiology and resistance. In addition, changes in temperature, precipitation, and the frequency of extreme events will infl uence disease epidemiology. Changes in geographical distribution will potentially alter the relative importance and spectrum of diseases, and new disease complexes may arise. Evolution of pathogen populations may accelerate from enhanced UV-B radiation and/or increased fecundity in elevated CO 2 . As a result, host resistances may be overcome more rapidly. Disease management will be infl uenced due to altered effi cacy of biological and chemical control options. Given the multitude of atmospheric and climatic factors, possible change scenarios, and the number of disease systems, modeling approaches to impact assessment need to be strengthened. Changes in both mean temperature and its variability are equally important in predicting the potential impact of climate change. Given that climate change is a global issue, the focus needs to shift from paddock-based assessment on specifi c diseases to a more ecologically relevant spatial unit to consider climate with other associated changes in land use and vegetation cover, among others. Keywords Climate change • Impact on plant diseases • Geographical ranges • Adaptation • Mitigation 152Plant diseases are considered an important component of plant and environmental health and can be caused by infectious or biotic pathogens. Biotic plant diseases are caused by organisms such as fungi, bacteria, viruses, and phytoplasmas. Crop LossesAgricultural trends are infl uencing the incidence and importance of plant pathogens. First, the expansion of worldwide trade in food and plant products is spreading the impact of diseases. Second, changes in cultural techniques, particularly intensifi cation of cropping, reduction in crop rotations, and increase in monocultures, encourages the activity of pathogens. In extreme cases, pathogen damage can lead to severe impacts on society. In such cases, the climate conditions are conducive to widespread pathogen epidemics. The late blight of potato, caused by the fungus Phytophthora infestans , was a major factor in the Irish famine of the 1840s. Genetic uniformity of the potatoes was also a contributing factor. Late blight is still one of the most important diseases of potato and its epidemics continue to be highly correlated to weather conditions during sporulation. This disease presents a threat in the USA today.Plant diseases are signifi cant constraints to the production of some 25 crops that stand between the rapidly expanding world population and starvation (Wittwer 1995 ). Worldwide losses from diseases range from 9 to 16 % in rice, wheat, barley, maize, potato, soybean, cotton, and coffee, and in the USA alone, fungicide...

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Interactive effects of elevated ozone and carbon dioxide on growth and yield of leaf rust-infected versus non-infected wheat

Cited by 87 publications

References 21 publications

Climate Change Effects on Plant Disease: Genomes to Ecosystems

Climate Change Effects on Plant Disease: Genomes to Ecosystems

Climate change and plant diseases

Impacts on Plant Pathogens

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