Polyacrylamide-Entrapped
            <i>Rhizobium</i>
            as an Inoculant for Legumes

Dommergues, Yvon; Diem, Hoang Gia; Diviès, Charles

doi:10.1128/aem.37.4.779-781.1979

Cited by 102 publications

(28 citation statements)

References 2 publications

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“…In addition, the viability of most organisms tested hitherto decreased appreciably with storage time. On the other hand, studies with entrapped Rhizobium in various nonsterile polymer gels by nonsterile procedures (9,14) showed that the entrapping process did not significantly decrease either the number of bacteria or their viability as shown in the present study and in the work of Fravel et al (11).…”

Section: -77a 1985)supporting

confidence: 64%

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Alginate Beads as Synthetic Inoculant Carriers for Slow Release of Bacteria That Affect Plant Growth

Bashan

1986

Appl Environ Microbiol

277

106

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Uniform synthetic beads were developed as carriers for the bacterial inoculation of plants. The beads are made of sodium alginate and skim milk and contain a large reservoir of bacterial culture which releases the bacteria at a slow and constant rate. The beads are biodegradable and produce no environmental pollution. The strength of the beads, the rate of bacterial release, and the time of their survival in the soil can be controlled by several hardening treatments. The final product, lyophilized beads, is simple to use and is applied to the seeds concomitantly with sowing. The released bacteria are available for root colonization immediately at seed germination. Dry beads containing bacteria can be stored at ambient temperature over a long period without loss of bacterial content; storage requires a limited space, and the quality control of a number of bacteria in the bead is simple. The level of plant inoculation with beads was similar to that with previously used peat inoculants, but the former method yielded more consistent results, as the frequency of inoculated plants was much higher. The former method provides a different approach for inoculation of plants with beneficial rhizosphere bacteria.

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Section: -77a 1985)supporting

confidence: 64%

“…Release of the immobilized living material was considered a disadvantage of the system (4,5,7,8,12,13,16,20,21,26). A few reports suggested the use of several polymer gels for entrapping fungi and bacteria for use as agricultural inoculants (9,11,14,19).…”

mentioning

confidence: 99%

Alginate Beads as Synthetic Inoculant Carriers for Slow Release of Bacteria That Affect Plant Growth

Bashan

1986

Appl Environ Microbiol

277

106

View full text Add to dashboard Cite

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“…These gel-based inoculants compared favourably with a peat-based inoculant. Drying these inoculants prevents the multiplication of contaminants, renders inoculants more easy to handle in the field but lowers the final concentration of rhizobia, and in the case of polyacrylamide decreases the effectiveness of rhizobia (Dommergues et al 1979).…”

Section: Introductionmentioning

confidence: 99%

Production and survival during storage of spray‐dried Bradyrhizobium japonicum cell concentrates

Mary

Moschetto

Tailliez

1993

Journal of Applied Bacteriology

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Production of Bradyrhizobium japonicum cell concentrates by spray‐drying in skim milk plus sucrose medium and the feasability of storing dried inocula over long periods were investigated. Storage of spray‐dried cells under mild vacuum was equivalent to storage under nitrogen. Oxygen and ambient temperature were found detrimental for survival of dried cells. High initial cell concentration and storage under low relative humidities (< 23% RH) at 4°C increased the longevity of the inocula (> 109 cfu g‐1 during at least a 25 week storage period) without altering the symbiotic properties of B. japonicum.

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“…is important efficiency character being taken into consideration while formulating the biofertilizers. (Kloepper and Schroth, 1981), compost, coconut shell powder, peat (Temprano et al 2002), talc (Dommergues et al 1979), perlite (Bashan,1986), zeolite, vermiculite, perlite, rice bran, wheat bran, polyacrylamide (Cassidy et al 1996), charcoal, sawdust, organic manure are used for production of biofertilizers. These carriers provide support to the microbial culture and help in the survival capacity of microorganism.…”

Section: Types Of Bioformulations Availablementioning

confidence: 99%

Biological alternates to synthetic fertilizers: efficiency and future scopes

Kaur

2018

IJARe

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The nutrient availability to plants is major limiting factor determining the crop production. Chemical fertilizers are, no doubt, a milestone to fulfill the nutrient deficiency but presently mankind is facing a huge threat of environment damage as well as resource depletion. At the same time population explosion is also a major concern. To feed such a large population (8.5 × 109 in 2025) unexploited resources should be used to enhance the crop production and to improve quality of soil. The various plant specific nitrogen fixing, phosphate solubilizing, potassium solubilizing and zinc mobilizing microorganisms can be used to enhance the bioavailability of nutrients to plants. This biological method is not only sustainable for long run but also economical and thus can be used as biofertilizers. These microorganisms can be commercially made available to farmers in the form of carrier based, liquid or encapsulated formulations containing latent or active forms. Apart from nutrient mobilization, they can also act as bioenhancers and biopesticides. However, efficiency and acceptance of biofertilizer among farmers is still a big concern. This review article focuses on efficiency of biofertilizers to replace or supplement the synthetic fertilizers for soil fertilization.

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Polyacrylamide-Entrapped Rhizobium as an Inoculant for Legumes

Abstract: Pot experiments showed that Rhizobium japonicum cells entrapped in a polyacrylamide gel could be used as an inoculant for soybeans and compared favorably to laboratory-made peat base inoculant containing the same bacterial strain.

Cited by 102 publications

References 2 publications

Alginate Beads as Synthetic Inoculant Carriers for Slow Release of Bacteria That Affect Plant Growth

Alginate Beads as Synthetic Inoculant Carriers for Slow Release of Bacteria That Affect Plant Growth

Production and survival during storage of spray‐dried Bradyrhizobium japonicum cell concentrates

Biological alternates to synthetic fertilizers: efficiency and future scopes

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