Nitric oxide: an effective weapon of the plant or the pathogen?

Arasimowicz‐Jelonek, Magdalena; Floryszak‐Wieczorek, Jolanta

doi:10.1111/mpp.12095

Cited by 78 publications

(61 citation statements)

References 114 publications

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“…It is true that norB was increased by 44% by N fertilization, but norB codes for a component of cNOR and for qNOR, an enzyme that may relate to environmental NO detoxification rather than to denitrification (Hendriks et al ., ). Nitric oxide production is a defence mechanism not only used by microorganisms, but also by plants, and certain plant pathogenic bacteria detoxify NO using qNOR expression (Arasimowicz‐Jelonek and Floryszak‐Wieczorek, ). Thus, increased abundance of norB may reflect the intensification of antagonisms in N‐fertilized soil more than an increased potential for denitrification.…”

Section: Discussionmentioning

confidence: 99%

Long‐term effects of nitrogen and phosphorus fertilization on soil microbial community structure and function under continuous wheat production

Tremblay

Bainard

et al. 2019

Environmental Microbiology

104

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Summary Soil microorganisms play a critical role in the biosphere, and the influence of cropland fertilization on the evolution of soil as a living entity is being actively documented. In this study, we used a shotgun metagenomics approach to globally expose the effects of 50‐year N and P fertilization of wheat on soil microbial community structure and function, and their potential involvement in overall N cycling. Nitrogen (N) fertilization increased alpha diversity in archaea and fungi while reducing it in bacteria. Beta diversity of archaea, bacteria and fungi, as well as soil function, were also mainly driven by N fertilization. The abundance of archaea was negatively impacted by N fertilization while bacterial and fungal abundance was increased. The responses of N metabolism‐related genes to fertilization differed in archaea, bacteria and fungi. All archaeal N metabolic processes were decreased by N fertilization, while denitrification, assimilatory nitrate reduction and organic‐N metabolism were highly increased by N fertilization in bacteria. Nitrate assimilation was the main contribution of fungi to N cycling. Thaumarchaeota and Halobacteria in archaea; Actinobacteria, Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria and Deltaproteobacteria in bacteria; and Sordariomycetes in fungi participated dominantly and widely in soil N metabolic processes.

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Section: Discussionmentioning

confidence: 99%

Long‐term effects of nitrogen and phosphorus fertilization on soil microbial community structure and function under continuous wheat production

Tremblay

Bainard

et al. 2019

Environmental Microbiology

104

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“…Notably, the necrotrophy contact with pelargonium leaf tissue of a susceptible genotype conferred the capacity to trigger a transient NO burst, which helps to promote necrotic death of host cells and favors the disease's advancement. In addition, the reach of high levels of pathogen‐derived NO to plant cells also contributes to hypersensitive cell death, facilitating subsequent tissue colonization (Arasimowicz‐Jelonek & FloryszakWieczorek, ; Turrion‐Gomez & Benito, ). Thus, transient NO bursts in planta induced by the pathogen attack or originating both from pathogen and host plant might accelerate the infection progress, which constitutes an essential element governing the success of a necrotrophic growth.…”

Section: No For Fungal Infection and Colonization In Host Plantsmentioning

confidence: 99%

Nitric oxide as a developmental and metabolic signal in filamentous fungi

Zhao

Lim

et al. 2020

Molecular Microbiology

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The short‐lived hydrophobic gas nitric oxide (NO) is a broadly conserved signaling molecule in all domains of life, including the ubiquitous and versatile filamentous fungi (molds). Several studies have suggested that NO plays a vast and diverse signaling role in molds. In this review, we summarize NO‐mediated signaling and the biosynthesis and degradation of NO in molds, and highlight the recent advances in understanding the NO‐mediated regulation of morphological and physiological processes throughout the fungal life cycle. In particular, we describe the role of NO in molds as a signaling molecule that modulates asexual and sexual development, the formation of infection body appressorium, and the production of secondary metabolites (SMs). In addition, we also summarize NO detoxification and protective mechanisms against nitrooxidative stress.

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“…In plants, NO regulates developmental transitions such as seed germination1, photomorphogenesis23, flowering45), fruit ripening6 and leaf senescence78. NO is also a key regulatory molecule in the response of plants to environmental stress910. As a free radical, NO is prone to react with free radical oxygen species and also with metals11.…”

mentioning

confidence: 99%

Nitric oxide triggers a transient metabolic reprogramming in Arabidopsis

León

Costa

Castillo

2016

Sci Rep

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Nitric oxide (NO) regulates plant growth and development as well as responses to stress that enhanced its endogenous production. Arabidopsis plants exposed to a pulse of exogenous NO gas were used for untargeted global metabolomic analyses thus allowing the identification of metabolic processes affected by NO. At early time points after treatment, NO scavenged superoxide anion and induced the nitration and the S-nitrosylation of proteins. These events preceded an extensive though transient metabolic reprogramming at 6 h after NO treatment, which included enhanced levels of polyamines, lipid catabolism and accumulation of phospholipids, chlorophyll breakdown, protein and nucleic acid turnover and increased content of sugars. Accordingly, lipid-related structures such as root cell membranes and leaf cuticle altered their permeability upon NO treatment. Besides, NO-treated plants displayed degradation of starch granules, which is consistent with the increased sugar content observed in the metabolomic survey. The metabolic profile was restored to baseline levels at 24 h post-treatment, thus pointing up the plasticity of plant metabolism in response to nitroxidative stress conditions.

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Nitric oxide: an effective weapon of the plant or the pathogen?

Cited by 78 publications

References 114 publications

Long‐term effects of nitrogen and phosphorus fertilization on soil microbial community structure and function under continuous wheat production

Long‐term effects of nitrogen and phosphorus fertilization on soil microbial community structure and function under continuous wheat production

Nitric oxide as a developmental and metabolic signal in filamentous fungi

Nitric oxide triggers a transient metabolic reprogramming in Arabidopsis

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