Root colonization with arbuscular mycorrhizal fungi (AMF) improves plant tolerance against soil-borne pathogens. The purpose of the present study was to explore the efficacy of the AMF Rhizophagus intraradices (N.C. Schenck & G.S. Sm.) as a biocontrol agent against Fusarium pseudograminearum (O'Donnell and Aoki) in wheat plants grown under greenhouse conditions. Parameters here analyzed included disease

Peanut is an important oil crop in the world. A full understanding of the rhizosphere and peanut pods bacterial communities and function are still lacking. In this study, we found the bacterial collections isolated from the peanut pods promoted the germination of peanut seeds. The bacteria community around rhizosphere and pods of peanut were further analyzed by 16S rRNA amplicon sequencing. The bacteria

The Brazilian Cerrado represents an important hotspot of biodiversity but how different Cerrado physiognomies shape the arbuscular mycorrhizal (AM) community remain poorly understood. We hypothesize that differences in plants and soil properties found across the Cerrado physiognomies would influence the AM community. Thus, soil samples were collected from different physiognomies of Cerrado as follows:

Soil micro-ecological imbalance is one of the critical factors associated with peach replanting issues. In an effort to understand the primary driving force in shaping soil microbial community, we analyzed soil nutrient, pH value, and autotoxin benzoic acid (BA) content, as well as rhizosphere microbial structure of peach seedlings grown in replanted soil (RS) and non-replanted soil (NS), both of which

Arbuscular mycorrhizal (AM) fungi are ubiquitous symbionts of most terrestrial plants that can augment plant defences against insect herbivores. A clearer understanding of the mechanisms underpinning community-specific effects of AM fungi on plant resistance to herbivores is needed. Here, we report how plant (Triticum aestivum) phenolic-based resistance to an insect herbivore is differentially affected

Mycorrhizal fungus is one of the most common and widespread symbiosis formed in the rhizosphere of plants which enhances the diversity and abundance of bacteria in the rhizosphere soil of plants on the basis of promoting plant growth, increasing its yield and saving costs. As an important group of soil microorganisms, bacteria can effectively promote soil material circulation and energy flow. Bacterial

This study aims to evaluate the efficiency of the co-inoculation of arbuscular mycorrhizal fungi (AMF) and mycorrhizal helper bacteria (MHB) to promote the growth of siamese rosewood and burma padauk seedlings. The experiment was carried out in the pot experiment for 120 days. Three different species of AMF, Glomus clarum KKU−CLD−1, Clomus proliferum PC2−2 and Acaulospora mellea KKU−NBP−NB−2, were

The present study has been designed to identify the impact of various supplements on the profile of volatile organic compounds (VOCs) produced by two rhizospheric Pseudomonas spp. For this, selected organisms were cultured in presence of tomato root extract, organic acids and sugars. From the culture extract, detection and identification of VOCs were carried out by GC-MS. Results of the study revealed

To analyze the crop yield there is need to estimate the crop production. However, it is challenging task to control the crop production response because of different inputs. Fertilizer has a notable impact on crop yield. In order to analyze the fertilizers, it is suitable to establish a predictive approach to obtain optimal parameter for the best fertilizers. The main goal of the study was to establish

Rhizobacteria able to express multiple plant growth-promoting (PGP) traits has been frequently failed to enhance the chickpea-Mesorhizobium symbiosis possibly because a relatively large amount of organic acids exudated by chickpea root to form an acid rhizosphere reduced the survival and colonisation of plant growth-promoting rhizobacteria (PGPR). Therefore, this study was initiated to screen rhizobacteria

Understanding the community composition and diversity of arbuscular mycorrhizal fungi (AMF) in agricultural ecosystems is important for exploring their potential for use in sustainable crop production. In this study, we collected rice root samples from upland rice fields under different agricultural practices in four districts of Bangladesh (Khagrachori, Rangamati, Chattogram, and Bandarban) to estimate

Inoculation with Rhizobium tropici and Rhizobium freirei can partially supply the nitrogen demand required for normal development and high productivity of common bean (Phaseolus vulgaris L.). Here, a simple and low-cost approach was used to select R. tropici sodium azide-resistant mutants with improved efficiency as microsymbiont of common bean. We mutagenized R. tropici CIAT889 by treatment with methyl

The 1D radial solute transport model with non-linear inner boundary condition is widely used for simulating nutrient uptake by plant roots. When included into an architectural root model, this local model has to be solved for a high number of root segments, e. g. 105 – 106 segments for large root systems. Each root segment comes with its own local parameter set in heterogeneous root architectural models

Root biomass and productivity research provide valuable information for understanding the ecological processes that occur within mangroves. The data reported by different studies on belowground biomass suggest a high spatial variability, which local factors can control. In this study, the productivity and biomass of belowground roots and pneumatophores of arid mangroves were measured along with sediment

The Purna alluvial basin of central India, infilled largely with areno-argillaceous sediments of Quaternary age, is also marked by occurrences of both pedogenic and non pedogenic calcretes of diverse shape and size. The previous includes nodular, laminar, hardpan and root calcretes along with rhizolith balls and rhizospheres, whereas non pedogenic type is represented by groundwater calcretes. These

This study was conducted to improve alfalfa seed germination under stress conditions, elevated chromium concentrations or Fusarium infection by seed inoculation. The new Bacillus pseudomycoides strain BM1 was selected as the inoculant according to its ability to suppress plants pathogens and tolerate increased chromium concentrations. This rhizobacteria was isolated and identified based on 16S rDNA

It is widely claimed that common mycorrhizal networks (CMN) play significant roles in facilitated transfer of nutrients between plants. This experiment investigated the role of a common mycorrhizal network with a C3 legume and a C4 grass under drought-stressed conditions, and assessed whether there was an interaction between water and plant species on rhizosphere bacterial DNA community profile. Shoot

Fusarium oxysporum f.sp. cubense Tropical Race 4 (FOC TR4), is one of the newly emerged dreaded pathogens of banana with an established global presence. Fungicides have not been effective in controlling the disease. There are very few effective antagonistic microbes reported for the biological management of this pathogen. In the present study, suppressive soil was selected for isolation of potential

Chromium (VI) [Cr(VI)] is the predominant environmental pollutant, which adversely affects the growth, physiology and molecular behaviour of the plants. Mitigation of Cr(VI) toxicity in plant by plant growth promoting rhizobacteria (PGPR) is an efficient inexpensive approach. Hence, the present study was designed to elucidate the influence of Cellulosimicrobium funkei AR6 strain on the growth, physico-chemical

The goal of this study was to better understand the resilience of rhizosphere microbial communities located in riparian wetlands subjected to high nutrient loads following effluent or runoff exposure. Specifically, this research monitored functional profiles of mesocosm communities during an artificial high nitrogen load exposure following adaptation to high or low water quality conditions. Based on

Replacing conventional monocultures with high diversity agroecosystems can positively impact environmental quality, but their adoption is limited, in part, due to inadequate understanding of how these systems operate regarding belowground competition. We examined how root competition between breadfruit (Artocarpus altilis) and māmaki (Pipturus albidus) affected aboveground performance under three different

Pigmented Serratia spp. have antibacterial, antimalarial, antimycotic, immunomodulatory and antitumor activities. Here, a pigmented Rhizobacteria, Serratia spp. isolated from medicinal plant Plumbago indica was studied for its inhibitory effect towards Pythium myriotylum. Upon microscopic analysis, the pigment extract prepared from isolated Serratia spp. was found to cause remarkable distortion on

The potential of Bacillus subtilis in promoting soybean growth under conditions of low availability of nutrients was assessed in a pot experiment. The experiment was carried out in a completely randomized design with five treatments, as follow: (T1) Bradyrhizobium japonicum; (T2) B. japonicum + non-inoculated organic fertilizer; (T3) B. japonicum + inoculated organic fertilizer; (T4) B. japonicum + B

There is considerable evidence to increase diosgenin and other medicinally useful compounds production in fenugreek with microbial inoculations. Fenugreek (Trigonella foenum-graecum L.), as an annual medicinal plant, is extensively cultivated in most regions of the world. In the present study we evaluate the role of plant growth-promoting rhizobacteria (PGPR) inocula (Pseudomonas putida and Bradyrhizobium

This study aimed at analyzing the proportion of root and seed mucilage components and their functions in the rhizosphere. In total, polysaccharides (78.4%), proteins (7.3%), minerals (5.6%), and lipids (3.1%) constitute 94.3% of the mucilage composition. Mucilage polysaccharides are an energy source for microorganisms, absorb water, exchange cations, and adhere to solid surfaces in the rhizosphere

The plant growth promoting rhizobacterium (PGPR) Bacillus amyloliquefaciens (strain GB03) augments Arabidopsis glucosinolate defenses targeting the generalist herbivore Spodoptera exigua. With the goal to transfer such technology to an agricultural crop, bacterial-defense induction was monitored in the closely related species, Eruca sativa (arugula). Plant growth promotion and leaf protection against

Soil salinity limits wheat growth, but several fungal species can promote the productivity under saline conditions. This study investigated how Arbuscular mycorrhizal fungi (AMF), and Penicillium funiculosum and Fusarium oxysporum (PFFO) affected wheat growth under saline conditions. Wheat, inoculated with AMF, or PFFO, or with AMF and PFFO, was stressed with 75, or 150 mM NaCl in the soil. AMF colonization

Soil pollution with polycyclic aromatic hydrocarbons (PAH) such as phenanthrene is extremely detrimental to the environment and to all living organisms, which is why appropriate remediation techniques are required. Here we tested single and combination effects of the arbuscular mycorrhizal fungus (AMF) Rhizophagus irregularis BEG 87 and a soil amendment that results from the fermentation of organic

Pseudomonas rhizosphaerae OA2 is a rhizobacterium species characterized as plant growth-promoter isolated from the rhizosphere of maize grown in the research field of North-West University, South Africa. The whole genomic sequencing of Pseudomonas rhizosphaerae was perform using Illumina-based and the read length obtained from the sequencing data was 88,559,000 bp. The purpose of this article is to

Lotus spp. are a plant of great importance as a forage to improve pastures, to restore degraded soils and the inoculation with best rhizobial strains is widely used in many countries. The aim of this work was to analyze the phylogeny of bacteria nodulating Lotus creticus collected from sandy alkaline saline soil in Tangier province Northern Morocco and determine their identity. Out of 44 bacterial

The percentage of germination and the vigor of seeds are major determinants for an efficient seedling production to successfully establishment a crop. Some Capsicum annuum germinate within a few days, but others take until 21 days. Pepper seeds have significant amounts of free and bound polyphenols that are modified during the germination process. Phenolic compounds are used by seed to scavenge free

Diosgenin is the most important steroidal saponin in fenugreek, with multiple medicinal properties. Increasing the production of diosgenin in fenugreek requires stimulating the production of saponins. The production of saponins or secondary metabolites is affected by biological and non-biological elicitors. The main aims of this study were investigate whether cobalt nanoparticles as an abiotic elicitor

The rhizosphere microbiome is critical for plant growth and protection against plant pathogens. However, rhizosphere microbial communities are likely to be restructured upon plant infection by fungal pathogens. Our objective was to determine the shifts in rhizosphere bacterial communities of avocado trees (Persea americana Mill.) after Fusarium dieback (FD), a disease triggered by the symbiotic fungi

Intercropping, the co-cultivation of two or more plant species in the same field, has several advantages over growing only one plant species, however, the role of plant-microbe interactions in such a setup is poorly understood. To investigate the influence of rhizosphere colonization by plant growth-promoting rhizobacteria (PGPR) in an intercropping system, a model legume-cereal intercropping system

Some fungal isolates affect soil by solubilizing nutrients and promoting plant growth; however, little is known about the effects of applications of these isolates on soil biology and fertility. Thus, the aim of the present study was to identify the effect of five well-known fungal endophytes, namely, Beauveria bassiana, Trichoderma asperellum, Metarhizium anisopliae, Purpureocillium lilacinum and

Protein typically represents the largest input of organic nitrogen (N) into soil. Proteases subsequently make this protein available for use by both plants and microorganisms, however, the factors that regulate protein breakdown in the rhizosphere remain limited. Root exudation of carbon (C) and N into soil promotes microbial growth and thus enzyme production, which is further enhanced by root morphological

There are few reports on the use of arbuscular mycorrhizal fungi (AMF) to promote growth and stress tolerance of soybean (Glycine max L.) in agricultural soils contaminated with heavy metals. The present study evaluated the role of AMF in promoting tolerance and growth, as well as uptake of heavy metals in shoots of soybean plants. Soybean plants were inoculated with AMF (Funneliformis mosseae) in

This study was designed to highlight the impact of calcium chloride (CaCl2) seed priming on faba bean nodulation and root nodule oleosomes under cadmium stress. In the un-primed plants, high Cd exposure (50 μM) led to a decrease in nodule number and dry weight by 63% and 76% respectively as compared to control. Furthermore, metal supply resulted in a decrease (by 46%) in lipid content and the level

Plant fine roots affect the amount of soil inorganic nitrogen (N) via their N uptake and their effects on organic matter decomposition and N mineralization. However, the effects of the fine roots of canopy trees on N availability in forest soil remain largely unknown owing to the limitations of in-situ measurements. Therefore, to reveal the effects of the fine roots of canopy trees on forest soil N

Diverse cyanobacteria play an important role in improving local environments in desert ecosystems by forming biocrusts. Seasonal changes can directly or indirectly affect the structure of microbial communities through changes in temperature and precipitation; however, the impact of seasonal changes on the cyanobacterial communities in biocrusts is poorly understood. We characterized the cyanobacterial

High demand for therapeutic honey is driving establishment of Leptospermum (Myrtaceae) nectar plantations. Leptospermum seeds are often difficult to extract or germinate, and so methods have been sought to propagate Leptospermum from cuttings. We assessed the amenability of two high-value species, L. polygalifolium and L. scoparium, to propagation as rooted cuttings with or without the application

Resistance induction involves the activation of latent defense mechanisms existing in plants in response to treatment with biotic or abiotic agents. The plants have an inducible defense system, in order to save energy. Resistance induced in natural conditions will only cost in the presence of the pathogen. During the evolutionary process, plants acquired a sophisticated defensive strategy to “perceive”

Chemotaxis plays an important role in food-finding, mate-finding, response to host plants and other aspects of nematode interactions. In this study, chemotaxis responses of Meloidogyne incognita second-stage juveniles (J2) to seven plant hosts were investigated. Chemotaxis volatiles from root exudates were analyzed by gas chromatography-mass spectrometry, from which four attractive compounds were identified

Plant stem cutting are commonly used for vegetative propagation, and it can be used to obtain equal bio-types of Veronica dahurica Steven and the rare species Veronica pusanensis Y.N.Lee. Here, we compared the effects of three concentrations of indole-3-butyric acid (IBA) and α-naphthalene acetic acid (NAA) on the cuttings of V. dahurica and V. pusanensis. The effect of IBA treatment on the root quality

Rhizosphere microbiomes are influenced by abiotic stresses, but we know a little about their response to combinations of stresses. In this study we tested: (i) if drought and heat stress influence the maize rhizosphere microbial community; (ii) if the combination of drought and heat has a different outcome compared to a single stress; (iii) if rhizosphere microbiota clusters according to root class

This study investigates the optimization of various environmental and nutritional factors for the best indole acetic acid (IAA) producing isolate using Box-Behnken Design (BBD) with Response Surface Method (RSM) and examines its effects on early plant growth parameters of Cicer arietinum (chickpea). Firstly, the screening of putative Bacillus isolates based on IAA producing capability and analysis

Salinity is the major environmental stress affecting growth and physiological processes in plants. Glycyrrhiza glabra (licorice) is a perennial medicinal plant having many secondary metabolites. The effects of 0, 100, 200, 400, 600, and 800 mM NaCl on growth parameters, leaf relative water content, chlorophyll index, gas exchange parameters, membrane stability index, antioxidant activity, phenolic

An increased plant capacity to efficiently use the poorly available pools will be very helpful in citrus production. Information on the various mechanisms evolved by citrus rootstocks to optimize soil phosphorus (P) access is limited. Thus, the objectives of this study were: To evaluate P acquisition efficiency (PAE) in Thomson Navel Orange (Citrus sinensis L. Osbeck.) plants grafted on three rootstocks

Drought is an unavoidable abiotic stress that restricts the growth rate of many crops in arid regions. Potassium (K) is an essential nutrient and the most abundant cation in the plant, which is critical to decreasing the adverse effects of drought stress. K is supplied naturally by mica and other K-bearing primary minerals in the soil. This paper aimed to investigate the ability of barley roots (without

Temperate grasslands are affected by nutrient deficiency and this deficiency is one of the main limiting factors for forage production, such as the grasslands of the Salado River Basin (Argentina), which exhibit low-P availability for plant growth. Alternatives to increase forage production include the selection of plant species adapted to grow under P deficiency, P fertilization, and arbuscular mycorrhizal

Vineyards in southern Brazil have high copper levels due to the application of products to control fungal diseases. High soil concentrations of this element can have toxicity to young plants. Arbuscular mycorrhizal fungi (AMF) can alleviate this effect, but the beneficial effect depends on the plant and AMF. AMF have different ecological strategies and respond differently to environmental and management

Root nodules offer habitat not only for Rhizobium also for a wide variety of endophytic bacteria that have a positive impact on growth and nutrient status of the plant. To evaluate this statement, the present study was aimed to reveal the cultivable Rhizobium (R) and passenger endophytes (PE) of groundnut nodule and explored their impact on plant growth parameters. Two groundnut phenotypes, bunch (cv

Strategies to enhance the production of secondary metabolites, derived from medicinal and agriculturally important plants have been the subject of exploration to enable effective utilization of these biorepositories. Through symbiosis, arbuscular mycorrhizal fungi (AMF), modify plant primary and secondary metabolite biosynthesis. The relationship thus offers the opportunity to exploit combinations

Due to its increasing economical values, sunchoke is widely planted including in Northeast Thailand where insufficient water supply recurs. This work then aimed to investigate the efficiency of 5 different AMF species to enhance growth of sunchoke under drought stress conditions. Factorial experiments in a randomized complete block design (RCBD) were conducted with four replications under two conditions