Arabidopsis thaliana natural variation reveals connections between UV radiation stress and plant pathogen-like defense responses

Piofczyk, Thomas; Jeena, Ganga; Pečinka, Aleš

doi:10.1016/j.plaphy.2015.01.011

Cited by 23 publications

(20 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…164,165 The mechanism (and consequences) of this response remain to be established, however it is possible that the response is mediated by ROS, produced in response to UV-B radiation, in a scenario analogous to herbivory damage. 166 This outcome would also be consistent with reports of UV-B-enhanced plant defence against herbivory operating via UVR8. [167][168][169] If verified, it is conceivable that plants could use this mechanism to systemically transmit information about their UV environment.…”

Section: Photochemical and Photobiological Sciences Perspectivesupporting

confidence: 88%

A perspective on ecologically relevant plant-UV research and its practical application

Robson

Aphalo

Banaś

et al. 2019

Photochem Photobiol Sci

View full text Add to dashboard Cite

Plants perceive ultraviolet-B (UV-B) radiation through the UV-B photoreceptor UV RESISTANCE LOCUS 8 (UVR8), and initiate regulatory responses via associated signalling networks, gene expression and metabolic pathways. Various regulatory adaptations to UV-B radiation enable plants to harvest information about fluctuations in UV-B irradiance and spectral composition in natural environments, and to defend themselves against UV-B exposure. Given that UVR8 is present across plant organs and tissues, knowledge of the systemic signalling involved in its activation and function throughout the plant is important for understanding the context of specific responses. Fine-scale understanding of both UV-B irradiance and perception within tissues and cells requires improved application of knowledge about UV-attenuation in leaves and canopies, warranting greater consideration when designing experiments. In this context, reciprocal crosstalk among photoreceptor-induced pathways also needs to be considered, as this appears to produce particularly complex patterns of physiological and morphological response. Through crosstalk, plant responses to UV-B radiation go beyond simply UV-protection or amelioration of damage, but may give cross-protection over a suite of environmental stressors. Overall, there is emerging knowledgeshowing how information captured by UVR8 is used to regulate molecular and physiological processes, although understanding of upscaling to higher levels of organisation, i.e. organisms, canopies and communities remains poor. Achieving this will require further studies using model plant species beyond Arabidopsis, and that represent a broad range of functional types. More attention should also be given to plants in natural environments in all their complexity, as such studies are needed to acquire an improved understanding of the impact of climate change in the context of plant-UV responses. Furthermore, broadening the scope of experiments into the regulation of plant-UV responses will facilitate the application of UV radiation in commercial plant production. By considering the progress made in plant-UV research, this perspective highlights prescient topics in plant-UV photobiology where future research efforts can profitably be focussed. This perspective also emphasises burgeoning interdisciplinary links that will assist in understanding of UV-B effects across organisational scales and gaps in knowledge that need to be filled so as to achieve an integrated vision of plant responses to UV-radiation.

show abstract

Section: Photochemical and Photobiological Sciences Perspectivesupporting

confidence: 88%

A perspective on ecologically relevant plant-UV research and its practical application

Robson

Aphalo

Banaś

et al. 2019

Photochem Photobiol Sci

View full text Add to dashboard Cite

show abstract

“…6b . In addition, supporting the potential importance of chitin(−like) elicitors of mite feeding and involvement of LRR-receptor-like proteins (RLP), two receptor kinases, LYSM-CONTAINING RECEPTOR-LIKE KINASE 4 (LYK4 ) and SUPPRESSOR OF BIR1-1 (SOBIR1 ) were up-regulated across plant species, as well as the kinase encoded by ortholog of uncharacterized AT1G76360 locus that was recently linked to plant responses to UV radiation [ 32 – 35 ]. Further, core includes orthologous genes encoding METHIONINE GAMMA-LYASE ( MGL ), involved in cellular methionine homeostasis and biosynthesis of isoleucine (Ile), and AROGENATE DEHYDRATASE ( ADT6 ) that catalyzes the final step in phenylalanine (Phe) biosynthesis [ 36 , 37 ].…”

Section: Resultsmentioning

confidence: 99%

Comparative genome-wide transcriptome analysis of Vitis vinifera responses to adapted and non-adapted strains of two-spotted spider mite, Tetranyhus urticae

et al. 2016

View full text Add to dashboard Cite

BackgroundThe two-spotted spider mite, Tetranychus urticae, is an extreme generalist plant pest. Even though mites can feed on many plant species, local mite populations form host races that do not perform equally well on all potential hosts. An acquisition of the ability to evade plant defenses is fundamental for mite’s ability to use a particular plant as a host. Thus, understanding the interactions between the plant and mites with different host adaptation status allows the identification of functional plant defenses and ways mites can evolve to avoid them.ResultsThe grapevine genome-wide transcriptional responses to spider mite strains that are non-adapted and adapted to grapevine as a host were examined. Comparative transcriptome analysis of grapevine responses to these mite strains identified the existence of weak responses induced by the feeding of the non-adapted strain. In contrast, strong but ineffective induced defenses were triggered upon feeding of the adapted strain. A comparative meta-analysis of Arabidopsis, tomato and grapevine responses to mite feeding identified a core of 36 highly conserved genes involved in the perception, regulation and metabolism that were commonly induced in all three species by mite herbivory.ConclusionsThis study describes the genome-wide grapevine transcriptional responses to herbivory of mite strains that differ in their ability to use grapevine as a host. It raises hypotheses whose testing will lead to our understanding of grapevine defenses and mite adaptations to them.Electronic supplementary materialThe online version of this article (doi:10.1186/s12864-016-2401-3) contains supplementary material, which is available to authorized users.

show abstract

“…Leaf senescence-related changes in the secretome, along with variations in the AF volume and pH resemble pathogen attack responses, that in turn involve the induction of many Senescence Associated Genes, SAGs genes (Little et al, 2007;Schippers et al, 2015). PR5 markedly accumulates in the apoplast in response to a variety of biotic and abiotic stresses (Piofczyk et al, 2015;Lambertucci et al, 2019), suggesting a role in a possible universal stress response, or in a crosstalk point where different stress responses converge. It would be plausible that stress-related and senescence programs trigger common mechanisms under conditions requiring recycling.…”

Section: Discussionmentioning

confidence: 99%

Physiological and Proteomic Changes in the Apoplast Accompany Leaf Senescence in Arabidopsis

et al. 2020

View full text Add to dashboard Cite

The apoplast, i.e. the cellular compartment external to the plasma membrane, undergoes important changes during senescence. Apoplastic fluid volume increases quite significantly in senescing leaves, thereby diluting its contents. Its pH elevates by about 0.8 units, similar to the apoplast alkalization in response to abiotic stresses. The levels of 159 proteins decrease, whereas 24 proteins increase in relative abundance in the apoplast of senescing leaves. Around half of the apoplastic proteins of non-senescent leaves contain a N-terminal signal peptide for secretion, while all the identified senescence-associated apoplastic proteins contain the signal peptide. Several of the apoplastic proteins that accumulate during senescence also accumulate in stress responses, suggesting that the apoplast may constitute a compartment where developmental and stress-related programs overlap. Other senescence-related apoplastic proteins are involved in cell wall modifications, proteolysis, carbohydrate, ROS and amino acid metabolism, signaling, lipid transport, etc. The most abundant senescence-associated apoplastic proteins, PR2 and PR5 (e.g. pathogenesis related proteins PR2 and PR5) are related to leaf aging rather than to the chloroplast degradation program, as their levels increase only in leaves undergoing developmental senescence, but not in dark-induced senescent leaves. Changes in the apoplastic space may be relevant for signaling and molecular trafficking underlying senescence.

show abstract

Arabidopsis thaliana natural variation reveals connections between UV radiation stress and plant pathogen-like defense responses

Cited by 23 publications

References 58 publications

A perspective on ecologically relevant plant-UV research and its practical application

A perspective on ecologically relevant plant-UV research and its practical application

Comparative genome-wide transcriptome analysis of Vitis vinifera responses to adapted and non-adapted strains of two-spotted spider mite, Tetranyhus urticae

Physiological and Proteomic Changes in the Apoplast Accompany Leaf Senescence in Arabidopsis

Contact Info

Product

Resources

About