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... The ultimate purpose of phytoextraction is not only to remove heavy metals from soil but also to improve soil quality. Here, we evaluated how the joint effect of Streptomyces pactum (strain Act12) and inorganic (Hoagland's solution) and organic (humic acid and peat) nutrients affected the phytoextraction practice of cadmium (Cd) and zinc (Zn) by potherb mustard, and the microbial community composi ...
rhizospherebacteria, etc ; plant development; rare species; rhizosphere; watermelons; Show all 5 Subjects
Abstract:
... Rare bacteria in rhizospheres from natural watermelon vs chimeric watermelon were investigated to understand the rare rhizobacteria assembling processes along with plant development and effects of rare species on functional stability. Over 80% of the total OTUs were defined as rare taxa (i.e., transient, permanent, and conditionally rare) in the rhizosphere. Among these three rarities, transient r ...
rhizospherebacteria, etc ; Bacillus subtilis; Phaseolus vulgaris; beans; biomass; heat stress; rhizosphere; Show all 7 Subjects
Abstract:
... Bacillus subtilis can mitigate crop growth and yield under heat stress. We studied whether these benefits can be reproduced in the common bean (Phaseolus vulgaris L.). We hypothesized that B. subtilis strains AP-3 and AP-12 could improve bean crop performance under heat stress. Heat stress consisted of cultivation at 35 °C compared to pots at 25 °C in controlled environment chambers. Treatments we ...
rhizospherebacteria, etc ; bacteriocins; drugs; food availability; phenotype; plant growth; plant pathogenic bacteria; Show all 7 Subjects
Abstract:
... AIMS: Phytopathogens are a global threat to the world’s food supply. The use of broad‐spectrum bactericides and antibiotics to limit or eliminate bacterial infections is becoming less effective as levels of resistance increase, while concurrently becoming less desirable from an ecological perspective due to their collateral damage to beneficial members of plant and soil microbiomes. Bacteria produ ...
rhizospherebacteria, etc ; Sedum; abscisic acid; bioaccumulation factor; heavy metals; hyperaccumulators; phytoaccumulation; polluted soils; Show all 8 Subjects
Abstract:
... The enhanced heavy metal (HM) phytoextraction efficiency of hyperaccumulating plants via plant-growth-promoting microbes has been proposed as an effective strategy to remove HMs from contaminated soil. Nevertheless, it remains unclear whether catabolizing the abscisic acid (ABA) in hyperaccumulating plants via rhizobacteria can facilitate HM phytoextraction. In the present study, a hyperaccumulato ...
rhizospherebacteria, etc ; Pseudomonas fluorescens; amylases; enzyme kinetics; metal tolerance; pH; rhizosphere; rice; seed germination; temperature; Show all 10 Subjects
Abstract:
... Seed germination is one of the most critical and complex physiological stages in the plant life cycle. It is highly affected by environmental stress. Priming is a promising tool for the improvement of the plant withstanding against different biotic and abiotic. Most studies that deal with the evaluation of the role of priming on germination evaluate the metabolic and biochemical reactions through ...
rhizospherebacteria, etc ; Coriandrum sativum; beneficial microorganisms; essential oils; linalool; lipid content; spices; vesicular arbuscular mycorrhizae; Show all 8 Subjects
Abstract:
... Coriander (Coriandrum sativum L.), one of the oldest spice plants globally, has wide usage, mainly owing to its essential oil content. This study investigated the effects of rhizobacteria, mycorrhizae, and their combination on the yield and essential oil profile of coriander. The treatments resulted in statistically higher yield properties and essential oil values than the control. The effects of ...
rhizospherebacteria, etc ; composts; pepper; phosphates; seed germination; seed treatment; seedling growth; siderophores; soil; viability; vigor; Show all 11 Subjects
Abstract:
... The aim of the research was to study the effects of biological seed treatment utilization rhizobacteria on seed germination and seedling growth, furthermore to figure out the competence of rhizobacteria isolates to dissolve phosphate, produce acetic indol acid (IAA) and siderophore. 18 rhizobacteria isolates used in this research, each isolates was anlayze in vitro; IAA, phosphate and siderophore. ...
... The combined eco-risks of Sb (widely presented in soils, especially nearing mining areas) and the engineering nanomaterials (ENMs) (applied in agriculture and soil remediation) still remain uncovered. The current study investigated the impacts of single and combined exposure of CuO, CeO₂ nanoparticles (NPs) and multi-walled carbon nanotube (MWCNTs) with Sb on rice growths and rhizosphere bacterial ...
rhizospherebacteria, etc ; Geobacter; Massilia; cadmium; cultivars; field experimentation; microbial communities; phosphates; polluted soils; rhizosphere; rice; China; Show all 12 Subjects
Abstract:
... The association between the rhizospheric microbial community and Cd accumulation in rice is poorly understood. A field trial was conducted to investigate the different rhizobacterial communities of two rice cultivars with high Cd accumulation (HA) and low Cd accumulation (LA) at four growth stages. Results showed that the Cd content in the roots of the HA cultivar was 1.23 - 27.53 higher than that ...
Amanda Michele Santos de Lima; Emídio Cantídio Almeida de Oliveira; Valeska Regina Silva Martins; Larissa Batista da Silva; Pedro Henrique Neves de Souza; Fernando José Freire
rhizospherebacteria, etc ; Stenotrophomonas; field experimentation; molybdenum; nitrogen; plant growth-promoting rhizobacteria; sugarcane; sugars; tillering; vegetative growth; Show all 10 Subjects
Abstract:
... Adequate nitrogen (N) supply plays an important role in sugarcane production. Efficiency of N fertilization can be enhanced through fertilization with molybdenum (Mo) and inoculation with plant growth-promoting rhizobacteria (PGPR). This study assessed the development of sugarcane inoculated with PGPR and fertilized with Mo and N. The field experiment was carried out in randomized blocks and facto ...
... BACKGROUND: Defining interactions of bacteria in the rhizosphere (encompassing the area near and on the plant root) is important to understand how they affect plant health. Some rhizosphere bacteria, including plant growth promoting rhizobacteria (PGPR) engage in the intraspecies communication known as quorum sensing (QS). Many species of Gram-negative bacteria use extracellular autoinducer signal ...
rhizospherebacteria, etc ; Rheum officinale; heavy metals; metal tolerance; phytoaccumulation; plant growth; rhizosphere; rhubarb; root systems; seed germination; Show all 10 Subjects
Abstract:
... Screening or breeding exceptional plant species for heavy metal phytoremediation is as important as adopting feasible measures to enhance phytoremediation efficiency, which are largely based on clarifying the mechanisms of heavy metal tolerance and accumulation by plants. In this study, cadmium (Cd) and lead (Pb) tolerance and accumulation characteristics of Rheum officinale, R. palmatum, and R. t ...
... HMs are bioaccumulative and non-biodegradable toxicants and can generate serious health risks to living organisms. The threat of low concentrations of HMs in soils is often overlooked. The BC-HMRPGPB-Plant association can provide a feasible green approach for remediation of HM-contaminated sites with low concentrations. In this study, strain AP-3 showed a high tolerance to several metals and exhib ...
... Two independent field experiments (2017 and 2019) were conducted to evaluate the effects of plant growth promoting rhizobacteria (PGPR), arbuscular mycorrhizal fungi (AMF; AMF1: Rhizophagus irregularis strain and AMF2: AMF consortium) and compost (Comp) in comparison to chemical NPK fertilizers on growth and yield of lettuce plants and soil properties. The biofertilizers-biostimulants were applied ...
... Industrial and agricultural activities have increased the amounts of heavy metals on the Earth's crust, risking organisms and ecosystem stability. Phytoremediation is a technique to remove heavy metals from contaminated sites. Soil phytoremediation involves many processes in which, not only plants participate, but also microorganisms present in the rhizosphere. Legumes form symbiotic associations ...
... Among the natural antagonistic microorganisms of plant-parasitic nematodes are rhizobacteria of the genus Serratia. Some species can produce a red pigment known as prodigiosin, which has shown to be antagonistic to different organisms. We analysed the nematicidal potential of this metabolite obtained from a Serratia marcescens strain on the nematode, Nacobbus celatus. In the first experiment, mort ...
... The plant pomological characteristics and physiological behaviors of genotypes in modern apple cultivation could be different depending on the use of rootstock, changing growth ecology and application of biological control agents. The aim of this research was to determine the effects of rhizobacteria application on leaf and fruit nutrient contents in different apple scion–rootstock combinations. T ...
... Fabaceans symbiotically interact with nitrogen-fixing rhizobacteria to form root nodules. Some fabacean specific proteins play important roles in the symbiosis. WRKY-related Protein (WRP) is a novel fabacean specific protein, whose functions have not been well characterized. In this study, MtWRP1 was functionally characterized in Medicago truncatula. It contains a WRKY domain at C-terminal and a n ...
... The quorum sensing (QS) system plays a significant role in the bacteria-bacteria or plant-bacteria relationships through signal molecules. However, little is known about the distribution and functional diversity of QS bacteria in the root environment of Suaeda glauca and Phragmites australis in coastal wetlands. We explored the bacterial community by amplicon sequencing and isolated 1050 strains f ...