Nasser Aliasgharzad

• Professor
• Professor (Full) at University of Tabriz

Introduction The apple (Malus domestica Borkh.), a cornerstone of Iran's agricultural exports, plays an important role in the nation's economy. The cultivation of this fruit, however, is frequently exposed to a multitude of pests and diseases, especially fungi from the Botryosphaeriaceae family emerging as a significant threat. Among these, Diplodi...

The fungi in Glomeromycota are mutualistic symbionts of plant roots and produce a special glycoprotein called “glomalin” on their spores and mycelium cell wall. The glomalin enters adjacent soil after cell wall death and decomposition. It contains 3–5% nitrogen and 36–59% carbon with considerable amounts of iron (0.8–8%). Glomalin is considered a r...

Fungi harboring lignocellulolytic activity accelerate the composting process of agricultural wastes; however, using thermophilic fungal isolates for this process has been paid little attention. Moreover, exogenous nitrogen sources may differently affect fungal lignocellulolytic activity. A total of 250 thermophilic fungi were isolated from local co...

Abstract Introduction: Bacterial soft rot caused by Pectobacterium species is one of the important and common diseases in Potatoes and vegetables. Disinfection of tubers or seeds with chemicals is one of the methods of disease management. Copper nanoparticles, like silver and gold nanoparticles, have a strong inhibitory effect on bacterial cells, b...

In recent decades, agricultural production has relied heavily on the use of chemical inputs, which has led to major environmental problems. The use of chemical fertilizers and pesticides has led to the destruction of water and soil resources, reducing the population and diversity of soil microbes, water, and air pollution, increasing the resistance...

Selenium (Se) is a beneficial element for higher plants; however, its involvement in improving the plants availability to soil nutrients has not been adequately addressed. Onion (Allium cepa L.) plants were grown under the sufficient (2 mM) and deficient (0.05 mM) phosphorus (P) supply and inoculated with an arbuscular mycorrhizal fungus (AMF, Dive...

Plant growth promoting rhizobacteria (PGPR) can attenuate the adverse effects of water deficit on plant growth. Since drought stress tolerance of bacteria has earlier been associated to biofilm formation, we aimed to investigate the role of bacterial biofilm formation in their PGPR activity upon drought stress. To this end, a biofilm-forming bacter...

Agricultural practices affect arbuscular mycorrhizal fungal (AMF) hyphae growth and glomalin production, which is a recalcitrant carbon (C) source in soil. Since the spatial distribution of glomalin is an interesting issue for agronomists in terms of carbon sequestration, digital maps are a cost-free and useful approach. For this study, a set of 12...

This research was conducted to evaluate the inhibitory effect of endophytic bacteria isolated from some common weeds of stone fruits orchards on Pseudomonas syringae pv. syringae (Pss). Weeds samples were collected from stone-fruit orchards in the northwest of Iran during the year 2017-2019. Bacterial strains were isolated from the plant samples us...

Using a nitrogen-free media, 232 bacteria were isolated from 50 soil samples collected in the provinces East Azerbaijan, Gilan and Ardabil in North of Iran. Plant growth-promoting traits of selected isolates were assessed under in vitro conditions. Moreover, PCR–RFLP analysis of the 16S rDNA and nifH genes was applied to investigate their genetic d...

PGPB play an important role in agricultural systems, and contain broad range of bacterial genera. Therefore, in this study, seeds of wheat were inoculated with 18 rhizobacteria strains belonging to Azotobacter chroococcum (14SPI, 44SP-2, 16SP-2, 14SP2-1), Pseudomonas sp. (24A-1, 34A-2, 34SPIII, 35SP-2), Agrobacterium sp. (14A-4, 22SP-1), Rhizobium...

Background and Objectives: Due to the impossibility of producing arbuscular mycorrhizal fungi as biofertilizer in laboratory conditions and some disadvantages of soil inoculant, in this study, the pot production of this inoculant with non-soil substrates was evaluated. Materials and Methods: In this experiment, seven species of mycorrhizal fungi we...

In the present work, the influence of feedstock composition (high and low lignin percentage) and addition of lignocellulose degrading bacterial isolates on final compost quality has been studied. The evaluation is based on respiration activity, temperature, nitrate and humic acid concentrations, elemental analysis, C/N ratio, pH, humic acids’ funct...

Siderophores are low molecular weight organic chelators which mostly expressed under iron deficiency to chelate Fe (III) metal ions in order to regulate iron based activities. Cyanobacteria, which are Gram-negative photoautotrophic prokaryotic organisms, hydroxamate type of siderophore predominates. The objective of this investigation was to determ...

Arbuscular mycorrhizal fungi play a vital role in the development of healthy agriculture and environmental protection. Therefore, the native production of these fungi is important. The type of substrate has a great effect on increasing the efficiency of the inoculum. Accordingly, in this study, the effect of different substrates on Arbuscular mycor...

Arbuscular mycorrhizal fungi can symbiosis with 80% of plants. The positive effects of these fungi on plant growth, health and soil regeneration have been well established. Due to the importance of these fungi, their production is increasing. Accordingly, in this study, the effect of different substrates to evaluate the Effective symbiosis of Glomu...

Abstract: As the population grows, the amount of waste products in human societies is growing rapidly and among the various methods of waste management, composting has been considered due to low operating costs and social and environmental benefits. But compost production and consumption are associated with problems such as greenhouse gas emissions...

Disadvantages of compost production and consumption include greenhouse gas emissions, nitrogen and carbon loss, which lead to climate change. The purpose of this article is to review the studies of the effect of biochar on greenhouse gas emissions (CH4, CO2 and N2O), carbon sequestration and nitrogen changes because there is no published report in...

The use of manure for agricultural applications is believed to be an important factor in the proliferation of antibiotic-resistant bacteria and can affect natural soil microbial communities. The goal of this study was to determine if the application of manure on cultivated fields would result in the proliferation of antibiotic-resistant bacteria an...

The products from medicinal plants are directly used for human consumption or used in the formulation of drugs. Therefore, in addition to quantity, their quality is also considered. Water deficit stress could affect the quality and quantity of the active substance in these plants. It has been reported that the use of Piriformospora indica as an end...

Background & Objective: Using the potential of soil microbes such as mycorrhizal fungi in the form of biofertilizers is an environmental friendly way to help reduce the use of chemical inputs and reduce the damage to the environment and humans. In this study, the effect of inoculation of coriander with two species of mycorrhizal fungi (Diversispora...

Introduction: Some of plant growth-promoting rhizobacteria (PGPR) are endophytic bacteria that exist in the endo-rhizosphere and are able to promote plant growth via different mechanisms. Materials and methods: Twenty four endophytic bacteria were isolated from the roots of grasses such as rice, wheat and barley using semi-solid nitrogen-free bromo...

This study aimed to evaluate the effect of lignin content and thermophilic lignocellulolytic bacteria bioaugmentation on composting process. Treatments including bioaugmentation with thermophilic lignocellulolytic bacteria isolates such as Paenibacillus validus, Paenibacillus koreensis, Bacillus nealsonii, a mixture of the three mentioned bacterial...

In this study, Pb was added to the soil at rates of 0, 100, 200, 300, 400, and 500 mg kg⁻¹ as Pb (NO3)2 and then incubate at 27 ºC and soil moisture of 0.7 field capacity for 180 d. Soil biological characteristics including acid and alkaline phosphomonoesterases (ACP and ALP), nitrate reductase (NR), and urease (UA) activities, microbial biomass ca...

Eggplant (Solanum melongena L.) is a thermophilic species susceptible to cold stress. The potential of arbuscular mycorrhizal fungi (AMF) for the amelioration of cold stress in this species has not been investigated so far. This study was conducted to examine some of the physiological functions through which the AMF colonization may improve cold st...

The interactions between arbuscular mycorrhizal fungi (AMF) and non-host species are poorly studied. Particularly scarce is information on members of the Amaranthaceae/Chenopodiaceae family. Sugar beet (Beta vulgaris) plants were co-cultivated with a host species (Hordeum vulgare) in the presence (+AMF) or absence of Rhizophagus intraradices to exp...

Tomato roots can be colonized by both mycorrhizal fungi and the endophytic fungus Serendipita indica. This study was aimed at assessment of the impact of single or dual inoculation with R. irregularis and S. indica on tomato growth under saline conditions. We used signature compounds to estimate the abundance of each of these two fungi (fatty acid...

Symbiosis between arbuscular mycorrhizal fungi and host plant roots may improve water and nutrient uptake by host plants. To evaluate this, a field experiment was carried out for 2 years. In both years, the experiment was arranged in a split plot system based on randomized complete block design with three replications. Irrigation regimes, as irriga...

Increasing levels of hazardous heavy metals, which enter soil and water ecosystems have had a detrimental effect on global living organisms and needs special attention. The effect of inoculation with three Glomus mycorrhizal fungi (G. mosseae, G. etunicatum and G. constrictum) on hemp growth and some biological properties was evaluated in a soil co...

Tillage not only affects the quantity of soil organic carbon, SOC, but also its quality. Therefore, an investigation was conducted to see how a five-year (2011–2016) implementation of conventional tillage, CT, and conservation tillage practices, CTP’s, under dryland vetch – wheat farming system can affect the total organic carbon, TOC, of soil and...

The fungal species belonging to the Trichoderma genus are the most promising microorganisms which improve plant growth by enhancing nutrient uptake and preventing them against environmental biotic and abiotic stresses. This study was aimed to evaluate the effects of three efficient Trichoderma isolates on tomato growth under water-deficit stress. T...

Nutritional status of medicinal plants is important due to their direct involvement in human dietary. Also, water deficit stress may adversely affect nutrient uptake and biomass production of these plants. There are evidences indicating that endophytic fungus Piriformospora indica improves nutrients uptake and mitigates water deficit stress in plan...

Given the negative environmental impacts of chemical fertilizers, application of phosphate solubilizing bacteria (PSB) as an ecofriendly and safe approach are becoming increasingly popular as substitute to chemical P fertilizers. Nowadays phosphatic microbial fertilizers (PMF) which are formulated by integration of rock phosphate (RP), organic resi...

در این تحقیق اثربخشی کودهای میکروبی فسفاته تهیه شده از هفت باکتری به نام‌های (Pantoea agglomerans P5، Pseudomonas fluorescens Tabriz، P. putida Tabriz، Pseudomnas sp. C16-2O، Enterobacter sp. S16-3، Bacillus megaterium JK6 و B. firmus) بر بستر پایه ﺧﺎك ﻓﺴﻔﺎت (45 ﮔﺮم) ، ﮔﻮﮔﺮد (15ﮔﺮم) و باگاس (30 ﮔﺮم) مورد ارزیابی قرار گرفت. در این آزمایش، باکتری P....

Introduction: Chemical fertilizers can supply all the nutrients required by plants, but their high consumptions cause environmental pollution and increased agricultural production costs. Organic fertilizers can improve the biological, physical, and chemical properties of soil and improve soil fertility and productivity. However, these fertilizers a...

Cyanobacteria are the simplest and one of the most visible photosynthetic organisms that have been present in fossils about two billion years ago. This research aimed the isolation of local Anabaena under cultivation of paddy field in Gilan province and their potential growth promoting-ability. After isolation, 10 isolates selected and their abilit...

Assessing the amount of released K from minerals in bacterial liquid culture is the main process for screening and isolation of efficient potassium releasing bacteria (KRB). This study was aimed to determine the amount of released K in solution phase or supernatant (SK) as well as microbial biomass K (MBK). Therefore, 20 different bacterial isolate...

Phosphorus is one of the most important and essential elements for plant growth, which most of the soil has enough reserves, but its usable amount for plants is negligible. One of the methods for supplying phosphorus needed in rice conditions is the use of phosphate solubilizing cyanobacteria, because most of the strains of this group, having good...

Water shortage is one of the most important limiting factors for plant growth around the world. To cope with this phenomenon, several solutions have been proposed, including the use of microorganism with plant growth promoting traits such as Trichoderma. Accordingly, an experiment was conducted to investigate the effect of three fungal species on t...

Bacteria with high phosphate solubilization ability and resistant to high temperatures are good candidates for using in phosphatic microbial fertilizers (PMF). Accordingly, in this study the dissolution of phosphate, thermal tolerance and viability of seven PSB (Pantoea agglomerans P5, Pseudomonas fluorescens Tabriz, P. putida Tabriz, Pseudomonas s...

Elemental and microbial enrichment of compost are basic solutions to increase its quality. The addition of beneficial bacteria and plant growth promoters are confirmed by various environmental aspects. The pH of compost is a critical factor affecting bacterial persistence. In this study, the municipal compost was sterilized and divided into two par...

Silicon (Si) is a beneficial element that alleviates the effects of stress factors including drought (D). Strawberry is a Si-accumulator species sensitive to D; however, the function of Si in this species is obscure. This study was conducted to examine the effect of Si and inoculation with an arbuscular mycorrhizal fungus (AMF) on physiological and...

Barley (Hordeum vulgare L.) is cultivated globally under a wide range of climatic conditions and is subjected to chilling and freezing stresses under temperate and cold climatic conditions. As a mycorrhizal crop, barley may benefit from this association for increasing cold resistance. In order to investigate the effects of inoculation with arbuscul...

Biochar as a stable carbon source can affect soil properties including microbiological attributes. The effects of biochar may also be influenced by plant growth and water deficit stress. In a greenhouse study, the biochar at three levels of 0, 1 and 2% w/w was thoroughly mixed with soil. Half of pots were planted with corn seeds (Zea mays L. Single...

Influence of Arbuscular Mycorrhizal Fungi on some Physical Properties and Nutrient Uptake in a Sandy Loam Soil under Growth of Tomato

Nitrification is one of the most active biological processes in the soils receiving ammonium nitrogen. The rate of this process is under the influence of several factors and their interactions. In this study, the effects of ammonium concentration and moisture content on the extent of nitrification in two soil samples named A (Loam) and B (Clay loam...

The application of potassium (K)‐releasing microorganisms is a promising approach for increasing K availability in soil. The objectives of this study were to isolate and characterize the K‐releasing bacteria (KRB) and to evaluate their contribution to the solubilization of K from muscovite and biotite, and to the assimilation of released K by tomat...

Nowadays the use of chemical, organic and biological fertilizers is an integral part of agriculture, and providing the phosphorus element is necessary for agricultural production. Application of chemical and organic carrier and its integration with useful microorganisms including phosphate solubilizing bacteria (PSB) are known as phosphatic microbi...

Phosphatic microbial fertilizers (PMF) which are formulated by integration of rock phosphate (RP), organic residues and efficient microorganisms including phosphate solubilizing bacteria (PSB) are being used as biofertilizers to meet plant phosphorus demand. PMFs of seven PSBs were prepared by adding PSB to the substrate consisting of RP, sulfur po...

Effect of silicon (Si) on the response of strawberry (Fragaria × ananassa var. Parus) plants to arbuscular mycorrhizal fungus (AMF) was studied under growth chamber conditions. Plants were grown in perlite irrigated with nutrient solution without (− Si) or with (+ Si) 3 mmol L−1 Si (~ 84 mg L−1 Si as Na2SiO3) in the absence (− AMF) or presence (+ A...

Microorganisms with cellulolytic and ligninolytic activities have important roles in the composting process but they may not tolerate thermophilic phase. Using thermophilic microbes possessing lignocellulolytic activity could facilitate the composting process. In this study, soil and compost samples were collected from different regions of Iran. Th...

In this chapter, we attempt to present the status of soil biology, the corresponding research activities, and the biological properties of the soils of Iran. After a brief history, biological characteristics associated with soil characteristics, climate, and vegetation are presented. Then, the biological properties of the dominant soils of the coun...

Soil pollution with heavy metals (HM) such as Pb in human societies is one of the major environmental problems that in addition to reducing the yield and product quality, threatens to endanger sustainable agricultural production and the health of organisms. In some studies it has been observed that fungus with stabilize the toxic metals in soil and...

This study was performed to isolate thermophilic microorganisms possessing cellulase activity from different soils and Different stages of production.

This study was performed to isolate thermophilic microorganisms possessing ligninase activity.

Abstract Glomalin is a glycoprotein identified in and extracted from cell walls of hyphae and spores of Glomeral fungi. It deposites on soil particles and acts as a glue which leads to the formation and stabilization of soil aggregates. Water deficit stress by affecting mycorrizal symbiosis can alter glomalin production. This study was conducted as...

The original version of this article, unfortunately, contained error. The family name of the corresponding author was incorrectly spelled as BAliasgharzadeh^. The correct spelling is BAliasgharzad^ and is now presented correctly in this article.

Phosphatic microbial fertilizers (PMFs) which produced from organic (Bagasse) and chemical (Rock phosphate and Sulfur) materials with combination of phosphate solubilizing bacteria (PSB) are taking more concerns in recent researches. These products are being used in two forms; granular or powder, to meet plant P demand. But application of sulfur in...

Glomalin is a specific fungal glycoprotein produced by arbuscular mycorrhizal (AM) fungi belonging to the Glomerales which could efficiently sequestrate heavy metals. The glomalin has been introduced as a heat shock protein and there are evidences that increasing levels of heavy metals could enhance its production. We examined the influence of Cd c...

Soil water and nutrients are important factors controlling plants growth. Legumes inoculation with nitrogen fixing bacteria and phosphorus (P) fertilization can improve plants growth in drought stress conditions. The effects of Sinorhizobium meliloti inoculation, soil water and P levels on leaf chlorophyll index, nitrogen (N) and P concentrations i...

In arid and semi-arid regions, plants frequently encounter with several stresses including drought stress during the growing season. The effects of Ensifer meliloti inoculation, soil water and P fertilizer on the growth characteristics of alfalfa (Medicago sativa cv. Ghareyonjeh), were studied by conducting an experiment at greenhouse conditions. T...

Paraquat is a herbicide which frequently used in agricultural systems for weeds control. Paraquat, relatively with long half-life, forms strong bonds with soil particles and persists in soil for a long time as a pollutant. Recently, various methods have been proposed for the removal or reduction of pesticides from soils. Bioremediation is an enviro...

Glomalin is the most abundant gylcoprotein in soil which produces by glomeral fungi in symbiosis with plant roots. It improves soil physical, chemical and biological properties. Assimilated plant C which is allocated to the mycorrhizal fungus, appears as a recalcitrant glycoprotein (glomalin) in cell walls of hyphae and spores. Considering global w...

Cyanobacteria represent a less investigated group of prokaryotes, in terms of their effect on plant growth, especially in relation with the production of phytohormones. The present research was aimed at evaluating Indole Acetic Acid (IAA) production potential of cyanobacteria strains isolated from Guilan paddy fields through the two quantitative an...

The objective of this investigation was to determine the potentials of some indigenous cyanobacteria for siderophore production in Tabarestan Biotechnology Institute in 2014. For this purpose, 30 strains of cyanobacteria were isolated from Guilan paddy field. Potentials of these strains for siderophore production were evaluated by chrome azorel-S a...

In this research, kinetics of Cr(VI) reduction by iron filings was investigated through a batch study in seven different soils. Chromate reduction experiments were carried out for initial Cr(VI) concentrations ranging from 20 to 100 mgkg−1 and iron filings dosage of 0 to 5% w/w. The experimental data were analyzed using various kinetic models inclu...

Lake Urmia in north-western Iran is one of the largest hypersaline lakes in the world, and agricultural production in the surrounding area is limited by soil salinity. We investigated the effects of salinity on belowground microbial communities in soils collected from fi elds of cultivated onions (Allium cepa L.) and lucerne (Medicago sativa L.), an...

Lake Urmia in north-western Iran is one of the largest hypersaline lakes in the world, and agricultural production in the surrounding area is limited by soil salinity. We investigated the effects of salinity on belowground microbial communities in soils collected from fi elds of cultivated onions (Allium cepa L.) and lucerne (Medicago sativa L.), an...

Lake Urmia in north-western Iran is one of the largest hypersaline lakes in the world, and agricultural production in the surrounding area is limited by soil salinity. We investigated the effects of salinity on belowground microbial communities in soils collected from fields of cultivated onions (Allium cepa L.) and lucerne (Medicago sativa L.), an...

Lake Urmia in north-western Iran is one of the largest hypersaline lakes in the world, and agricultural production in the surrounding area is limited by soil salinity. We investigated the effects of salinity on belowground microbial communities in soils collected from fi elds of cultivated onions (Allium cepa L.) and lucerne (Medicago sativa L.), an...

Lake Urmia in north-western Iran is one of the largest hypersaline lakes in the world, and agricultural production in the surrounding area is limited by soil salinity. We investigated the effects of salinity on belowground microbial communities in soils collected from fi elds of cultivated onions (Allium cepa L.) and lucerne (Medicago sativa L.), an...

Lake Urmia in north-western Iran is one of the largest hypersaline lakes in the world, and agricultural production in the surrounding area is limited by soil salinity. We investigated the effects of salinity on belowground microbial communities in soils collected from fi elds of cultivated onions (Allium cepa L.) and lucerne (Medicago sativa L.), an...

Lake Urmia in north-western Iran is one of the largest hypersaline lakes in the world, and agricultural production in the surrounding area is limited by soil salinity. We investigated the effects of salinity on belowground microbial communities in soils collected from fi elds of cultivated onions (Allium cepa L.) and lucerne (Medicago sativa L.), an...

The halophytic C4 grass, Aeluropus littoralis, was cultivated under low (50 mM) and high (200 mM) NaCl salinity and inoculated with the arbuscular mycorrhizal fungi (AMF) Claroideoglomus etunicatum in a sand culture medium for 20 weeks. Shoot and root dry mass increased under salinity conditions up to 24 and 86%, respectively. Although the root col...

This study was undertaken to investigate the factors explaining the results of our previous study revealing that selenium (Se) may enhance the nodulation of alfalfa (Medicago sativa L.) via improved carbohydrate metabolism. Symbiotic and non-symbiotic alfalfa plants were cultivated without or with low (1 µM) Se addition at low (2 mM) and adequate (...

Soil is a vital resource for producing the food needed to support an increasing world population. Land uses can increase or decrease soil quality dependent on management type. This research work was carried out by investigation of different land use (alfalfa, corn, and apple) effect on soil quality and their comparison with bare soil as a control i...

Onion (Allium cepa L.) is one of the most important vegetables in the diet of Iranian people. Considering the importance of the organic crops production with high nutritional value, an experiment was conducted to study of the effect of mycorrhizal fungi on the antioxidant capacity of Onion (Allium cepa L.). Antioxidant activity of five cultivars of...

Quality control of biofertilizers has several aspects that attention to properties of plant growth promoting of bacteria which used in biofertilizers as part of their quality control is taken into consideration. In this study, four kinds of biofertilizer commonly used in the Iran, including Nitroxin, Supernitroplus, Biosuperphosphate (industrial bi...

The benefits of biofertilizers in agriculture depend on the use of effective strains with desirable motivating plant growth characteristics. The quality control of the biofertilizers, especially in terms of investigating and proving the genus and species of the bacteria used in them is one of the most important criteria. Therefore, in this study, i...

Responses of Puccinellia distans, a halophytic grass to low (50 mM) and high (200 mM) NaCl salinity, were studied in a sand culture experiment without or with inoculation by arbuscular mycorrhizal fungus (AMF), Claroideoglomus etunicatum isolated from its saline habitat. Plant biomass was not influenced by salinity levels, while a tendency to a hig...

Mycorrhizal fungi are important symbionts in plants and play key roles in nutrients acquisition and enhancing plant tolerance against environmental stresses. A factorial experiment was conducted with maize plant in a completely-randomized design with four replications in greenhouse conditions. The factors were NaCl salinity with three levels ( 1.34...

Interaction between mycorrhizal fungi and plants under heavy metal polluted condition can alleviate stress condition for plants. This may be due to the better nutrition in mycorrhizal plants than non-mycorrhizal ones. In this study we assayed the chlorophyll content, leaf area, proline concentration, phosphate and lead contents, mycorrhizal depende...

Glomalin is a glycoprotein produced by arbuscular mycorrhizal (AM) fungi, and is a major component of soil organic matter, which plays an important role in soil aggregation and carbon sequestration. Glomalin is produced only by the AM fungi. On the other hand, stressful environments such as salinity can affect the AM fungi .The purpose of this stud...

Water deficit stress usually diminishes nitrogen uptake by plants. There are evidences that some nitrogen fixing bacteria can alleviate this stress by supplying nitrogen and improving its metabolism in plants. Four Azospirillum strains, A. lipoferum AC45-II, A. brasilense AC46-I, A. irakense AC49-VII and A. irakense AC51-VI were tested for nitrate...

Background and Aims Selenium (Se) is an essential micronutrient for humans and animals, but its role in plants remains unclear. Selenium enters the food chain via crops, and thus, plants constitute an essential source of Se in human nutrition. As a N2-fixing plant of high nutritive value, alfalfa (Medicago sativa L.) is an important forage legume f...

The ability of a few soil bacteria to transform unavailable forms of potassium (K) to an available form is an important feature in plant growth-promoting bacteria for increasing plant yields of high-K-demand crops. In this research, isolation, screening, and characterization of six isolates of K solubilizing bacteria (KSB) from some Iranian soils w...

Over 100 endophytic bacterial isolates were isolated from surface-sterilised roots of the Fabaceae family in East Azerbaijan farms. These isolates were screened for their in vitro biocontrol activity against Colletotrichum lindemuthianum by dual culture technique using potato dextrose agar (PDA) medium. Eight bacterial isolates (Bacillus subtilis s...

The objective of this study is to find out the effect of urea and level of soil moisture (submergence and un-submergence) on availability of Zn and Cu nutrients in both loamy sand and clay loam soils in vitro. This investigation is factorial experiment in a Completely Randomized design (CRD) with two replications. Factors include moisture condition...

Saline soils around Lake Urmia in northern Iran constitute a stressed environment for plants and microbial communities, including arbuscular mycorrhizal (AM) fungi. Soil and root samples were collected from fields cultivated with the glycophytes Allium cepa L. and Medicago sativa L., and sites dominated by the halophyte Salicornia europaea L. Soil...