Proven and potential involvement of vitamins in interactions of plants with plant growth-promoting bacteria—an overview

Palacios, Oskar A.; Bashan, Yoav; de‐Bashan, Luz E.

doi:10.1007/s00374-013-0894-3

Cited by 115 publications

(82 citation statements)

References 171 publications

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“…Examples include antibiotics; lytic enzymes, such as chitinases, cellulases, 1,3-glucanases, proteases and lipases; siderophore production; competition between pathogens and non-pathogens; induced systemic resistance; and modulation of environmental stress effects (Ahemad and Kibret, 2014). Although the mechanisms used by rhizobacteria are well known, their impact on photosynthetic metabolism remains unclear (Shi et al, 2010;Stefan et al, 2013a;Palacios et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Bacillus spp. inoculation improves photosystem II efficiency and enhances photosynthesis in pepper plants

Samaniego-Gámez¹,

Garruña-Hernández²,

Tun-Suárez³

et al. 2016

Chilean J. Agric. Res.

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Bacillus is one of the main rhizobacteria to have been used as a study model for understanding many processes. However, their impact on photosynthetic metabolism has been poorly studied. The aim of this study was to evaluate the physiological parameters of pepper (Capsicum chinense Jacq.) plants inoculated with Bacillus spp. strains. Pepper seeds were inoculated with Bacillus cereus (K46 strain) and Bacillus spp. (M9 strain; a mixture of B. subtilis and B. amyloliquefaciens), chlorophyll fluorescence and gas exchange were evaluated. The ANOVA (P ≤ 0.05) showed that the maximum photochemical quantum yield of photosystem II (PSII) (F v /F m ) in plants inoculated with the M9 strain (0.784) increased with respect to other treatments (K46: 0.744 and Control: 0.739). Inoculated plants with M9 and K46 strains exhibited an increase of both photochemical quenching (qP) (by 27% and 24%, respectively) and CO 2 assimilation rate (photosynthesis) (by 20% and 16%, respectively), when compared with non-inoculated plants. Furthermore, plants inoculated with M9 and K46 showed decreased transpiration (61% and 57%, respectively) with respect to controls. Likewise, both electron transport rate of PSII (ETR) and PSII operating efficiency (Φ PSII ) increased in inoculated plants. However, only plants inoculated with the M9 strain showed enhancements on all growth characteristics. Our results therefore show that inoculating plants with M9 strain positively influenced the performance of the photosynthetic mechanism in pepper plants to increase chlorophyll fluorescence and gas exchange parameters. Promotion of photosynthetic capacity in pepper was due to increased ETR in the thylakoid membranes, which was promoted by the bacteria. M9 strain could even be used in sustainable agriculture programs.

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Section: Introductionmentioning

confidence: 99%

Bacillus spp. inoculation improves photosystem II efficiency and enhances photosynthesis in pepper plants

Samaniego-Gámez¹,

Garruña-Hernández²,

Tun-Suárez³

et al. 2016

Chilean J. Agric. Res.

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“…PQQ administration results in considerable improvements in span of sleep, improvements in total duration of sleep, avoid of awakenings at night but not for nightmares ( Figure 11), [122] being treated with 20mg PQQ for 8 weeks in 17 persons [123]. The insomnia might be attributed to fatigue and stress which are indirectly involved with oxidative stress and ROS.…”

Section: Pqq Link To Oxidative Stress Tolerance and Sleepmentioning

confidence: 99%

The Life History of Pyrroloquinoline Quinone (PQQ): A Versatile Molecule with Novel Impacts on Living Systems

Naveed¹

2016

IJMBOA

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Pyrroloquinoline quinone (PQQ) acting as redox cofactor of Glucose dehydrogenase is orthocyclic antioxidant acting under multifarious environmental stress and rich conditions in prokaryotes as well as eukaryotes. Microbes are the exclusive source of PQQ biosynthesis and for biocatalysis of glucose into gluconic acid and 2-ketogluconic acid by gram positive and negative bacteria. This study focus to describe PQQ biography highlighted its applications acts as biocatalyst by enhanced production of NADH from pqqC, involved in several important mechanisms like bacterial energy transduction by m-ATPase, production of biocontrol substances, growth stimulating activities and DNA repair. PQQ acting as anti-neurological, anti-degenerative, anti-melanogenic and anti-cancer agent due to its antioxidant nature by scavenging free radicals. PQQ is modulator of immunity by CD4 cells count and IL-2, sleep maintenance by PGC-1 alpha pathway and inflammation due to ROS. The mineral phosphate solubilization results in plant growth promotional, biocontrol, antifungal and ISR activities. PQQ nanoparticles used for production of Biofuels cells and sulfonated polymers. It acts as a modulator of diverse signaling pathways like STAT, MAPK, JAK, JNK, P13K/Akt, mTOR, EGFR and Raps for cell proliferation, differentiation, apoptosis, Box translocation and metabolic pathways by phosphorylation of ADP and suppression of reactive oxygen species. It protects from oxidative stress by acting as Alpha AA modulator of lysine metabolism, TrxR1 in selenium metabolism, low density lipoprotein in lipid metabolism, ATP production in Energy, Glucose and carbohydrate metabolism. It has been structurally characterized with bioinformatics tools and future perspectives being molecular modeling and docking for analytical drug design.

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“…Not only rhizobia, but many other microorganisms, concentrated in the rhizospere of plants are described as plant growth promoting bacteria (PGPB) [8]. Several studies have reported many of the beneficial aspects induced by PGPB to the growth of plants [9] and to the entire community [10]; such benefits include the increase in growth, N and P-uptake by plants, increased photosynthesis and decreased carbon construction costs, through the inoculation of elite strains in pot experiments [11] and under field conditions [12,13,7]. PGPB can also increase the growth of plants thorugh the production of phyto-hormones such as Indole acetic acid (IAA) [14]which are well known to be plant growth promoters.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Plant Performance in <em>Cicer arietinum</em> L. due to the Addition of Combination of Plant Growth Promoting Bacteria

Pérez‐Fernández¹,

Alexander²

2017

Preprint

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Six bacterial strains with differing abilities to produce varying concentrations of Indole Acetic Acid were tested individually and in consortia for plant growth promoting and fitness related traits of Cicer arietinum. In all experiments the presence of the nitrogen fixer Mesorhizobium ciceri resulted in increased biomass production. In the absence of this strain, IAA Psedomonas putida and Bacillus megaterium hinder plant growth and fitness related traits. The application of mixes of the three strains always resulted in better plant performance when M. ciceri was present. Whereas P. putida has a noticeable plant growth-promoting effect B. megaterium resulted less effective. The low levels of IAA produced by the selected strains had a significantly greater positive effect on plant biomass accumulation, flower, pods and seed production as well as on total plant nitrogen and nitrogen concentration in seed than high IAA producer strains.

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Proven and potential involvement of vitamins in interactions of plants with plant growth-promoting bacteria—an overview

Cited by 115 publications

References 171 publications

Bacillus spp. inoculation improves photosystem II efficiency and enhances photosynthesis in pepper plants

Bacillus spp. inoculation improves photosystem II efficiency and enhances photosynthesis in pepper plants

The Life History of Pyrroloquinoline Quinone (PQQ): A Versatile Molecule with Novel Impacts on Living Systems

Enhanced Plant Performance in <em>Cicer arietinum</em> L. due to the Addition of Combination of Plant Growth Promoting Bacteria

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