Temperature dependent defence of Nicotiana tabacum against Cucumber mosaic virus and recovery occurs with the formation of dark green islands

Zhao, Fengyuan; Li, Yanan; Chen, Lijuan; Zhu, Lisha; Ren, Han; Lin, Honghui; Xi, Dehui

doi:10.1007/s12374-016-0035-2

Cited by 20 publications

(22 citation statements)

References 39 publications

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“…5(a). In several cases, bacterial and virus multiplications were enhanced in planta under TpE (Menna et al ., 2015; Zhao et al ., 2016; Huot et al ., 2017). TpE can also negatively affect pathogen multiplication, as reported with TuMV whose coat protein accumulation in planta is repressed by elevated temperatures (Chung et al ., 2015).…”

Section: Round Two: Effect Of Heat Stress On Plant–pathogen Interactionsmentioning

confidence: 99%

Fight hard or die trying: when plants face pathogens under heat stress

et al. 2020

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In their natural environment, plants are exposed to biotic or abiotic stresses occurring sequentially or simultaneously. Plant responses to these stresses have been widely studied and well characterized in simplified systems involving single plant species facing individual stresses. Temperature elevation is a major abiotic driver of climate change and scenarios predict an increase in the number and severity of epidemics. In this context we review the available data on the effect of heat stress on plant-pathogen interactions. Considering 45 studies performed on model or crop species, we discuss possible implications of the optimal growth temperature of plant hosts and pathogens, mode of stress application and temperature variation on resistance modulations. Alarmingly, the majority of identified resistances are altered under temperature elevation, regardless of the plant and pathogen species. Thereby, we list current knowledge on heatdependent plant immune mechanisms and pathogen thermo-sensory processes, mainly studied in animals and human pathogens, which could help understand the outcome of plant-pathogen interactions under elevated temperature. Based on a general overview of the mechanisms involved in plant responses to pathogens, and integrating multiple interactions with the biotic environment, we provide recommendations to optimize plant disease resistance under heat stress and to identify thermotolerant resistance mechanisms.

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Section: Round Two: Effect Of Heat Stress On Plant–pathogen Interactionsmentioning

confidence: 99%

Fight hard or die trying: when plants face pathogens under heat stress

et al. 2020

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“…Although temperature is an important environmental factor controlling plant growth, development, and immune response, the role of this factor in plant disease resistance is still unknown (Zhao et al ., 2016). Temperature is one of the most important environmental factors affecting various plant resistance pathways, including pattern‐triggered immunity, effector‐triggered immunity, RNA interference, and defence hormone networks (Velázquez et al ., 2010).…”

Section: Discussionmentioning

confidence: 99%

Temperature‐dependent resistance to potato virus M in potato (Solanum tuberosum)

et al. 2020

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Potato virus M (PVM) is present worldwide and the vast majority of potato cultivars are susceptible to PVM infection. The only source of PVM resistance intentionally introduced into potato cultivars is Solanum megistacrolobum, which is a donor of the Rm gene. However, differences in S. megistacrolobum‐derived resistance of potato clones have been observed. The aim of our study was to assess the influence of temperature on PVM infection of potato plants. The reaction of potato clones originating from S. megistacrolobum to inoculation with PVM and incubation at various temperature regimes (20 and 28°C) was evaluated. The presence of PVM in inoculated plants as well as in their tuber progeny was qualitatively detected by a double‐antibody sandwich (DAS)‐ELISA and quantitatively detected by quantitative reverse transcription PCR (RT‐qPCR). In the examined clones, three types of resistance reactions were observed: (a) Rm‐based resistance, (b) temperature‐dependent resistance, and (c) susceptibility. In potato clones with Rm‐based resistance, multiplication of PVM was completely inhibited regardless of incubation temperature. In the second group of clones, PVM resistance was dependent on temperature: in plants incubated at 20°C, the virus was present in inoculated plants as well as in tuber progeny plants, while in plants incubated at 28°C, complete inhibition of virus multiplication was observed. In the susceptible potato clones, PVM accumulated to a high level at both temperatures. We assume that S. megistacrolobum‐derived potato resistance to PVM infection is highly complex, and in addition to Rm‐based resistance, there are other resistance mechanisms, and resistance is at least partly based on temperature‐dependent reactions.

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“…As the current standard for the development of viral vectors for a new host is to bio-prospect for a virus that naturally occupies this sweet spot ( Pasin et al, 2019 ), a large fraction of vectors in use today have suboptimal aspects related to ease of infection or pathogenic symptoms. This balance is also affected by environmental conditions, potentially due to modulation of both replication rate and silencing by temperature ( Zhao et al, 2016 ). One avenue to engineer around this challenge is to use our current understanding of the processivity of RdRps ( Korneeva and Cameron, 2007 ; Draghici et al, 2009 ) and apply protein engineering techniques to tune replication speed.…”

Section: Engineering Viral Vector Replicationmentioning

confidence: 99%

RNA Viral Vectors for Accelerating Plant Synthetic Biology

Khakhar

Voytas

2021

Front. Plant Sci.

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The tools of synthetic biology have enormous potential to help us uncover the fundamental mechanisms controlling development and metabolism in plants. However, their effective utilization typically requires transgenesis, which is plagued by long timescales and high costs. In this review we explore how transgenesis can be minimized by delivering foreign genetic material to plants with systemically mobile and persistent vectors based on RNA viruses. We examine the progress that has been made thus far and highlight the hurdles that need to be overcome and some potential strategies to do so. We conclude with a discussion of biocontainment mechanisms to ensure these vectors can be used safely as well as how these vectors might expand the accessibility of plant synthetic biology techniques. RNA vectors stand poised to revolutionize plant synthetic biology by making genetic manipulation of plants cheaper and easier to deploy, as well as by accelerating experimental timescales from years to weeks.

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Temperature dependent defence of Nicotiana tabacum against Cucumber mosaic virus and recovery occurs with the formation of dark green islands

Cited by 20 publications

References 39 publications

Fight hard or die trying: when plants face pathogens under heat stress

Fight hard or die trying: when plants face pathogens under heat stress

Temperature‐dependent resistance to potato virus M in potato (Solanum tuberosum)

RNA Viral Vectors for Accelerating Plant Synthetic Biology

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