The International Workshop on Establishment of Microbial Inocula in Soils: Cooperative Research Project on Biological Resource Management of the Organization for Economic Cooperation and Development (OECD)

Elliott, L. F.; Lynch, J. M.

doi:10.1017/s0889189300006160

Cited by 50 publications

(25 citation statements)

References 102 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Microbial interactions play very important roles in sustainable agriculture through the integrated nutrient supply [6] . It is important to lay major emphasis on the application of efficient microbial inoculants [4] . Various commercial mono-culture inoculants being produced in India by various government/semi government or private agencies include: A. rhizobia and B. rhizobia, Azospirillum, Azotobacter, Bacillus megaterium, Bacillus polymyxa, mycorrhizal inoculants for forest trees and Pseudomonas as Plant Growth Promoting Rhizobacteria (PGPR) and bio control agent.…”

Section: Introductionmentioning

confidence: 99%

Development of Microbial Inoculants and the Impact of Soil Application on Rice Seedlings Growth

Al-Taweil

Osman

Hamid³

et al. 2009

American J. of Agricultural and Biological Sciences

View full text Add to dashboard Cite

Problem statement: The present study was undertaken to assess the Empty Fruit Bunches (EFB) as carrier of Biofertilizer and microbial inoculants interaction. A study in Malaysia had shown a strain of Trichoderma viride and Bacillus megaterium were isolated from the soil. Questions were raised whether the tow inoculants compatible to be mixed in same carrier? It is important to develop delivery system of the inoculants. The present study was undertaken to assess the Empty Fruit Bunches (EFB) as carrier of biofertilizers and microbial inoculants interaction and the impact on rice seedlings. Approach: Bacillus negaterium and Trichoderma viride were grown in their respective broth culture. Cells numbers in broth pr suspension were determined. EFB powder 200 g in polypropylene bags was sterilized. Inoculums from broth of suspension were added in EFB using sterilized syringe, moisture level in each packet was maintained by adding respective broth, 1 g was periodically withdraw from fomenters, soaked in 10 mL sterilized distal water, then serially diluted and plated out, the number of viable cells was expressed as cfu g −1 dry root. Twenty one-day-old rice seedlings of MR220 cultivar were grown under greenhouse conditions in autoclaved homogeneous soil, rice seedlings were treated with Trichoderma and Bacillus. Five replicates were used for each treatment. Rice seedlings height (cm), root length (cm), root numbers, root and shoot dray matter, parameters were measured during and after experiment. All data were analyzed at an alpha level of 0.05 or 0.10 using experimental design by completely randomized design model using the analysis of variance module (treatments × 3 R) all treatment means were separated using Fisher's protected least significant difference (LSD) mean separation. Results: Trichoderma growth in carrier reduces Bacillus growth as interaction effect of both in same carrier which indicated that Bacillus unable to develop on multi-inoculants biofertilizers with Trichoderma. Inoculation of rice seedlings with Bacillus megaterium and Trichoderma viride produced maximum shoots and roots dry matter, increased significantly root length numbers and seedlings height comparing with control and same action of NPK fertilizers. Conclusion: The present study showed the possibility to develop the delivery system of biofertilizers which contained Bacillus and Trichoderma as mono inoculums not as multi-inoculants due to incompatible of both in same carrier. Bacillus and Trichoderma also showed appositive effect with rice seedlings.

show abstract

Section: Introductionmentioning

confidence: 99%

Development of Microbial Inoculants and the Impact of Soil Application on Rice Seedlings Growth

Al-Taweil

Osman

Hamid³

et al. 2009

American J. of Agricultural and Biological Sciences

View full text Add to dashboard Cite

show abstract

“…Actinomycetes inhabit both the rhizoplane and rhizosphere (Solans and Vobis 2003;Frioni 2006) and are known to play some important ecological roles in soil nutrient cycling (Elliot and Lynch 1995), probiotics (Lievin et al 2000), bioremediation (Amoroso et al 2013), nitrogen fixation, and deterioration and decomposition of plant and animal residues and also provide many bioactive compounds such as vitamins, enzymes, and antibiotics (de Boer et al 2005;Busti et al 2006;Prapagdee et al 2008;Genilloud et al 2011). Apart from their beneficial impact, actinomycetes also cause some harmful effects such as they cause diseases and spoil different useful materials (Waksman 1950).…”

Section: Actinomycetes: An Ideal Candidate For Sustainablementioning

confidence: 99%

“…Among these, actinomycetes as P solubilizers (de Vasconcellos et al 2010;Hamdali et al 2012) have been less explored despite showing a better genetic and greater biodiversity potential (Pathom-Aree et al 2006;Thangapandian et al 2007). Also, they represent heterogeneous and abundant microbial populations and hugely affect cycling of nutrient in soil ecosystems (Elliot and Lynch 1995;Figueiredo et al 2010). Recently, the role of actinomycetes in sustainable agriculture (Johansson et al 2004; Strap 2011) via P supply to plants has been identified.…”

Section: Introductionmentioning

confidence: 99%

Role of Phosphate-Solubilizing Actinomycetes in Plant Growth Promotion: Current Perspective

Saif

Khan

Zaidi

et al. 2014

Phosphate Solubilizing Microorganisms

View full text Add to dashboard Cite

Phosphorus (P), an essential plant nutrient, is a nonrenewable resource whose availability depends exclusively on mined rock phosphates. Deficiency of P in soil results in reduction in food production since all plants require an adequate supply of P for its growth and development. Even though synthetic phosphatic fertilizer has played some major roles in enhancing crop production, its excessive use has also dark sides to it where it has been found to damage the environment, destruct soil fertility, and, via food chain, seriously affect the human health. Considering the nuisance of overuse of P, there is an urgent demand by the agriculture practitioners to find nonhazardous strategy that can overcome/reduce the use of agrochemicals in agricultural practices and, hence, may preserve the very integrity of soil ecosystems. In this context, actinobacteria, a group of Grampositive bacteria, ubiquitous in soils, are likely to play some important roles in supplying soluble P to plants by solubilizing/mineralizing complex P resources of soils. Additionally, the extracellular metabolites produced by actinomycetes may inhibit phytopathogens and, sometimes such metabolic compounds may also act as plant growth regulators. These qualities, among others, make actinobacteria an ideal candidate for developing as microbial inoculants for ultimate use in agriculture production system. The potential roles of actinomycetes as phosphate solubilizers in enhancing crop production are discussed.

show abstract

“…As a result, many biocontrol agents only showed impressive control efficacy in suppressing the growth of the pathogen at the laboratory stage, or at best, the glasshouse stage [6] . One of the main reasons for the failure of biocontrol agents to exhibit efficient control is their poor viability in the soil, resulting from soils which are too acidic under water-logged conditions [10] , or due to the intense competition with the indigenous microflora in the soil to establish their own niche and existence in the soil environment.…”

Section: Introductionmentioning

confidence: 99%

Assessment on the Effect of Formulative Materials on the Viability and Efficacy of Serratia marcescens-a Biocontrol Agent Against Fusarium oxysporum F. sp. cubense race 4

Ting¹,

Fang²,

Tee³

2009

American J. of Agricultural and Biological Sciences

View full text Add to dashboard Cite

Problem statement: Application of biocontrol agents to the field in pre-existing free-cell forms often results in poor cell viability which subsequently affects their efficacy in suppressing pathogen development. There is therefore a need to bioformulate these biocontrol agents not just to enhance their field potential, but for easy storage, delivery and application as well. Approach: In this study, the bioformulations for a biocontrol bacterium Serratia marcescens, was developed using bentonite clay as carrier material with various combinations of enrichment and additive materials. The most suitable bioformulation was determined by assessing the compatibility of the formulative materials in preserving cell viability during storage, the resulting appearance of the bioformulation, the protection confered to cells upon sunlight exposure and the efficacy of the formulated cells (with and without sunlight exposure) in inhibiting the growth of the pathogenic Fusarium oxysporum F. sp. cubense race 4 (FocR4). Results: Bioformulation benefited the cells when exposed to sunlight (UV rays). The benefits of bioformulation were attributed to the carrier material (bentonite clay) and the enhancement materials (NFSM and sucrose). They confer UV-protectant effects as well as providing nutrient source for the formulated cells. The additive material PABA was observed to have antimicrobial effect on the formulated cells. Formulative materials however has no impact on the efficacy of the cells in inhibiting FocR4 as no significant differences in percentages of FocR4 inhibition were observed between bioformulations with and without exposure to sunlight. Conclusion: Present study observed that incorporation of sucrose into Bentonite (BS) has the most potential for large-scale testing as it showed good viability and efficacy results.

show abstract

The International Workshop on Establishment of Microbial Inocula in Soils: Cooperative Research Project on Biological Resource Management of the Organization for Economic Cooperation and Development (OECD)

Cited by 50 publications

References 102 publications

Development of Microbial Inoculants and the Impact of Soil Application on Rice Seedlings Growth

Development of Microbial Inoculants and the Impact of Soil Application on Rice Seedlings Growth

Role of Phosphate-Solubilizing Actinomycetes in Plant Growth Promotion: Current Perspective

Assessment on the Effect of Formulative Materials on the Viability and Efficacy of Serratia marcescens-a Biocontrol Agent Against Fusarium oxysporum F. sp. cubense race 4

Contact Info

Product

Resources

About