Nitric Oxide and Plant Growth Promoting Rhizobacteria: Common Features Influencing Root Growth and Development

Molina‐Favero, Celeste; Creus, Cecilia M.; Lanteri, María Luciana; Correa‐Aragunde, Natalia; Lombardo, María Cristina; Barassi, Carlos A.; Lamattina, Lorenzo

doi:10.1016/s0065-2296(07)46001-3

Cited by 49 publications

(17 citation statements)

References 142 publications

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“…In this context, questions arise as to whether increased NO fluxes derived from N fertilization may affect growth and development, influence plant nutrition, and also affect a range of other plant responses (Lamattina et al, 2003). On the other hand, associative or symbiotic relationships between roots and microorganisms may contribute to NO production, and could also influence NO synthesis on each other (Molina-Favero et al, 2007).…”

Section: Nitric Oxide Synthesis In Plant Cellsmentioning

confidence: 99%

An Update on Nitric Oxide Production and Role Under Phosphorus Scarcity in Plants

et al. 2020

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Section: Nitric Oxide Synthesis In Plant Cellsmentioning

confidence: 99%

An Update on Nitric Oxide Production and Role Under Phosphorus Scarcity in Plants

et al. 2020

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“…Nitric oxide (NO) produced by plant growth promoting rhizobacteria (PGPR), which enhance plant growth by direct and indirect mechanisms, is an intermediary in auxin-regulated signaling cascades influencing root growth and developmental processes, namely the induction of adventitious root formation ( Molina-Favero et al, 2007 ). On the other hand, NO is implicated in the virulence of bacterial pathogens, with evidence for the role of microbial generated NO in the activation/deactivation of phytotoxins ( Wach et al, 2005 ) and in the defense against immune oxidative burst.…”

Section: The Dualism Of Nitric Oxidementioning

confidence: 99%

“…In summary, NO (and ROS) dualistic nature regards their ability in signaling either the promotion of stress defense or pathogenesis. The NO level is determinant for pathogenesis, an ability for a high NO level synthesis from the pathogen might stimulate disease, whereas a lower level synthesis by a PGPR might be determinant in plant development process, for instance in root growth ( Molina-Favero et al, 2007 ). The importance of the NO level in an evolutionary background is described in the sections below, where possible chronological events leading to the actual intricate NO–ROS interplay and NO signaling are presented.…”

Section: The Dualism Of Nitric Oxidementioning

confidence: 99%

Nitric Oxide Accumulation: The Evolutionary Trigger for Phytopathogenesis

2017

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Many publications highlight the importance of nitric oxide (NO) in plant–bacteria interactions, either in the promotion of health and plant growth or in pathogenesis. However, the role of NO in the signaling between bacteria and plants and in the fate of their interaction, as well as the reconstruction of their interactive evolution, remains largely unknown. Despite the complexity of the evolution of life on Earth, we explore the hypothesis that denitrification and aerobic respiration were responsible for local NO accumulation, which triggered primordial antagonistic biotic interactions, namely the first phytopathogenic interactions. N-oxides, including NO, could globally accumulate via lightning synthesis in the early anoxic ocean and constitute pools for the evolution of denitrification, considered an early step of the biological nitrogen cycle. Interestingly, a common evolution may be proposed for components of denitrification and aerobic respiration pathways, namely for NO and oxygen reductases, a theory compatible with the presence of low amounts of oxygen before the great oxygenation event (GOE), which was generated by Cyanobacteria. During GOE, the increase in oxygen caused the decrease of Earth’s temperature and the consequent increase of oxygen dissolution and availability, making aerobic respiration an increasingly dominant trait of the expanding mesophilic lifestyle. Horizontal gene transfer was certainly important in the joint expansion of mesophily and aerobic respiration. First denitrification steps lead to NO formation through nitrite reductase activity, and NO may further accumulate when oxygen binds NO reductase, resulting in denitrification blockage. The consequent transient NO surplus in an oxic niche could have been a key factor for a successful outcome of an early denitrifying prokaryote able to scavenge oxygen by NO/oxygen reductase or by an independent heterotrophic aerobic respiration pathway. In fact, NO surplus could result in toxicity causing “the first disease” in oxygen-producing Cyanobacteria. We inspected in bacteria the presence of sequences similar to the NO-producing nitrite reductase nirS gene of Thermus thermophilus, an extreme thermophilic aerobe of the Thermus/Deinococcus group, which constitutes an ancient lineage related to Cyanobacteria. In silico analysis revealed the relationship between the presence of nirS genes and phytopathogenicity in Gram-negative bacteria.

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“…The latter can be achieved by multiple possible pathways, such as aerobic denitrification and heterotrophic nitrification. NO is produced during the middle and late logarithmic phases of growth (Molina-Favero et al 2007. The NO production in A. brasilense Sp245 induces morphological changes in tomato roots regardless of the full bacterial capacity to synthesize IAA.…”

Section: Nitric Oxide and Azospirillum Sp Productionmentioning

confidence: 99%

Basic and Technological Aspects of Phytohormone Production by Microorganisms: Azospirillum sp. as a Model of Plant Growth Promoting Rhizobacteria

Cassán

Perrig

Sgroy

et al. 2011

Bacteria in Agrobiology: Plant Nutrient Management

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Nitric Oxide and Plant Growth Promoting Rhizobacteria: Common Features Influencing Root Growth and Development

Cited by 49 publications

References 142 publications

An Update on Nitric Oxide Production and Role Under Phosphorus Scarcity in Plants

An Update on Nitric Oxide Production and Role Under Phosphorus Scarcity in Plants

Nitric Oxide Accumulation: The Evolutionary Trigger for Phytopathogenesis

Basic and Technological Aspects of Phytohormone Production by Microorganisms: Azospirillum sp. as a Model of Plant Growth Promoting Rhizobacteria

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