Compatible Consortium of Endophytic Strains Cal.l.30 and Cal.f.4 Promotes Plant Growth and Induces Systemic Resistance against .

Evaluating microbial-based alternatives to conventional fungicides and biofertilizers enables us to gain a deeper understanding of the biocontrol and plant growth-promoting activities. Two genetically distinct strains (Cal.l.

-A Great Source of Plant Growth Promoting Endophytic Bacteria (PGPEB) and Biological Control Agents (BCA).

The application of beneficial bacteria may present an alternative approach to chemical plant protection and fertilization products as they enhance growth and resistance to biotic and abiotic stresses. Plant growth-promoting bacteria are found in the rhizosphere, epiphytically or endophytically (Plant Growth Promoting Endophytic Bacteria, PGPEB). In the present study, 36 out of 119 isolated endophytic bacterial strains from roots, leaves and flowers of the pharmaceutical plant were further identified and classified into , , , and genera.

Integrated Genomic and Metabolomic Analysis Illuminates Key Secreted Metabolites Produced by the Novel Endophyte Cal.l.30 Involved in Diverse Biological Control Activities.

The endophytic strain Cal.l.30, isolated from the medicinal plant , was selected among seven strains with plant growth promoting activity and strong biological potential against the postharvest fungal pathogen .

Genomic and Metabolomic Insights into Secondary Metabolites of the Novel Hil4, an Endophyte with Promising Antagonistic Activity against Gray Mold and Plant Growth Promoting Potential.

The endophytic bacterial strain Hil4 was isolated from leaves of the medicinal plant . It exhibited antifungal activity against and a plethora of plant growth promoting traits in vitro. Whole genome sequencing revealed that it belongs to and possesses numerous secondary metabolite biosynthetic gene clusters and genes involved in plant growth promotion, colonization, and plant defense elicitation.

Whole-genome sequence data of the proteolytic and bacteriocin producing strain PK23 isolated from the traditional Halitzia cheese produced in Cyprus.

Halitzia is a traditional white-brined cheese produced by a limited number of producers in Cyprus. During a survey of the microbiome of a number of different Halitzia samples, we identified a bacterial strain that exhibited enhanced proteolytic activity compared to the other isolates. The strain was further studied, and it was assigned as PK23.

Genomic Analysis and Secondary Metabolites Production of the Endophytic Bvel1: A Biocontrol Agent against Causing Bunch Rot in Post-Harvest Table Grapes.

Botrytis bunch rot caused by is one of the most economically significant post-harvest diseases of grapes. In the present study, we showed that the bacterial strain Bvel1 is phylogenetically affiliated to species. The strain Bvel1 and its secreted metabolites exerted an antifungal activity, under in vitro conditions, against .

Multi-Trait Wheat Rhizobacteria from Calcareous Soil with Biocontrol Activity Promote Plant Growth and Mitigate Salinity Stress.

Plant growth promoting rhizobacteria (PGPR) can be functional microbial fertilizers and/or biological control agents, contributing to an eco-spirit and safe solution for chemical replacement. Therefore, we have isolated rhizospheric arylsulfatase (ARS)-producing bacteria, belonging to and genus, from durum wheat crop grown on calcareous soil. These isolates harbouring plant growth promoting (PGP) traits were further evaluated in vitro for additional PGP traits, including indole compounds production and biocontrol activity against phytopathogens, limiting the group of multi-trait strains to eight.

Impact of Elemental Sulfur on the Rhizospheric Bacteria of Durum Wheat Crop Cultivated on a Calcareous Soil.

Previous experiments have shown that the application of fertilizer granules containing elemental sulfur (S) as an ingredient (FBS) in durum wheat crops produced a higher yield than that produced by conventional ones (F), provided that the soils of the experimental fields (F vs. FBS) were of comparable quality and with the Olsen P content of the field's soil above 8 mg kg. In this experiment the FBS treatment took place in soil with Olsen P at 7.

Structure-Function Analysis of the Periplasmic Escherichia coli Cyclophilin PpiA in Relation to Biofilm Formation.

The presence of peptidyl-prolyl cis/trans isomerases (PPIases, EC: 5.2.1.

Microbial cyclophilins: specialized functions in virulence and beyond.

Cyclophilins belong to the superfamily of peptidyl-prolyl cis/trans isomerases (PPIases, EC: 5.2.1.

Functional analysis of the cyclophilin PpiB role in bacterial cell division.

Escherichia coli PpiB is a peptidyl-prolyl cis/trans isomerase (PPIase, EC: 5.2.1.

Functional analysis of the two cyclophilin isoforms of Sinorhizobium meliloti.

The nitrogen fixing Sinorhizobium meliloti possesses two genes, ppiA and ppiB, encoding two cyclophilin isoforms which belong to the superfamily of peptidyl prolyl cis/trans isomerases (PPIase, EC: 5.2.1.

Structural and functional analysis of cyclophilin PpiB mutants supports an in vivo function not limited to prolyl isomerization activity.

Escherichia coli cyclophilin PpiB is a peptidyl-prolyl cis/trans isomerase (PPIase, EC: 5.2.1.

Cyclophilin PpiB is involved in motility and biofilm formation via its functional association with certain proteins.

PpiB belongs to the superfamily of peptidyl-prolyl cis/trans isomerases (PPIases, EC: 5.2.1.

Spatial and temporal distribution of genes involved in polyamine metabolism during tomato fruit development.

Polyamines are organic compounds involved in various biological roles in plants, including cell growth and organ development. In the present study, the expression profile, the accumulation of free polyamines and the transcript localisation of the genes involved in Put metabolism, such as Ornithine decarboxylase (ODC), Arginine decarboxylase (ADC) and copper containing Amine oxidase (CuAO), were examined during Solanum lycopersicum cv. Chiou fruit development and maturation.

Arbuscular mycorrhizal symbiosis alters the expression patterns of three key iron homeostasis genes, ZmNAS1, ZmNAS3, and ZmYS1, in S deprived maize plants.

Nicotianamine is an essential molecule for Fe homeostasis in plants, its primary precursor is the S-containing compound methionine, and it is biosynthesized by the enzyme family of nicotianamine synthases (NASs). In maize, a graminaceous plant that follows Strategy II for Fe uptake, ZmNAS genes can be subgrouped into two classes, according to their roles and tissue specific expression profiles. In roots, the genes of class I provide NA for the production of deoxymugineic acid (DMA), which is secreted to the rhizosphere and chelates Fe(III).

Low temperature storage affects the ascorbic acid metabolism of cherry tomato fruits.

Tomato fruits are an important source of l-Ascorbic acid, which is an essential compound of human diet. The effect of the widespread practice of cold storing (5-10 °C) tomato fruits was monitored to determine its impact on the concentration and redox status of l-Ascorbic acid. Total l-Ascorbic acid levels were well maintained in both attached fruits and cold treated fruits, while in other treatments its levels were considerably reduced.

The nitrogen-fixation island insertion site is conserved in diazotrophic Pseudomonas stutzeri and Pseudomonas sp. isolated from distal and close geographical regions.

The presence of nitrogen fixers within the genus Pseudomonas has been established and so far most isolated strains are phylogenetically affiliated to Pseudomonas stutzeri. A gene ortholog neighborhood analysis of the nitrogen fixation island (NFI) in four diazotrophic P. stutzeri strains and Pseudomonas azotifigens revealed that all are flanked by genes coding for cobalamin synthase (cobS) and glutathione peroxidise (gshP).

Cessation of photosynthesis in Lotus japonicus leaves leads to reprogramming of nodule metabolism.

Symbiotic nitrogen fixation (SNF) involves global changes in gene expression and metabolite accumulation in both rhizobia and the host plant. In order to study the metabolic changes mediated by leaf-root interaction, photosynthesis was limited in leaves by exposure of plants to darkness, and subsequently gene expression was profiled by real-time reverse transcription-PCR (RT-PCR) and metabolite levels by gas chromatography-mass spectrometry in the nodules of the model legume Lotus japonicus. Photosynthetic carbon deficiency caused by prolonged darkness affected many metabolic processes in L.

Functional interaction of Azotobacter vinelandii cytoplasmic cyclophilin with the biotin carboxylase subunit of acetyl-CoA carboxylase.

Cyclophilins (E.C. 5.

Biochemical characterization of two Azotobacter vinelandii FKBPs and analysis of their interaction with the small subunit of carbamoyl phosphate synthetase.

FK-506 binding proteins (FKBPs) belong to the peptidyl-prolyl cis/trans isomerase superfamily (PPIases, EC: 5.2.1.

The Caenorhabditis elegans parvulin gene subfamily and their expression under cold or heat stress along with the fkb subfamily.

Parvulins and FKBPs are members of the peptidyl-prolyl cis/trans isomerases (PPIase) enzyme family whose role is to catalyze the interconversion between the cis trans forms of a peptide bond preceding internal proline residues in a polypeptide substrate. Members of the parvulin subfamily have been found to be involved in a variety of diseases, including Alzheimer's disease and cancer and are also considered possible antiparasitic targets. Genes Y110A2AL.

Structure of a bacterial cytoplasmic cyclophilin A in complex with a tetrapeptide.

Cyclophilins constitute a class of peptidyl-prolyl isomerases which participate in processes related to protein folding, signalling and chaperoning. The crystal structure of the cytoplasmic cyclophilin A (CyPA) from the bacterium Azotobacter vinelandii complexed with a synthetic tetrapeptide was determined by molecular replacement at 2 resolution. The proline in the tetrapeptide is observed to adopt the cis-isomer conformation.

Functional characterization of NopT1 and NopT2, two type III effectors of Bradyrhizobium japonicum.

NopT1 and NopT2, putative type III effectors from the plant symbiotic bacterium Bradyrhizobium japonicum, are predicted to belong to a family of YopT/AvrPphB effectors, which are cysteine proteases. In the present study, we showed that both NopT1 and NopT2 indeed possess cysteine protease activity. When overexpressed in Escherichia coli, both NopT1 and NopT2 undergo autoproteolytic processing which is largely abolished in the presence of E-64, a papain family-specific inhibitor.

Transcriptional and biochemical characterization of two Azotobacter vinelandii FKBP family members.

Peptidyl-prolyl cis/trans isomerases (PPIases, EC: 5.2.1.