Perlite as a carrier for bacterial inoculants

Daza, A.; Santamarı́a, C.; Rodríguez-Navarro, Dulce N.; Camacho, M. E.; Orive, R.; Temprano, F.

doi:10.1016/s0038-0717(99)00185-6

Cited by 64 publications

(31 citation statements)

References 17 publications

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“…IAA production was assessed in the bacterial cultures before they were used in the assays. Bacterial solid peat inoculants were prepared as previously described (Daza et al, 2000). Viable PGPR cells from inoculants bags were estimated by plating 10-fold serial dilutions on NB agar and ranged from 0.5 to 1 × 10 9 CFU g -1 .…”

Section: Bacterial Strains Used and Culture Conditionsmentioning

confidence: 99%

Alternative rooting induction of semi-hardwood olive cuttings by several auxin-producing bacteria for organic agriculture systems

Montero‐Calasanz

Santamarı́a

Albareda

et al. 2013

Span. j. agric. res.

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Southern Spain is the largest olive oil producer region in the world. In recent years organic agriculture systems have grown exponentially so that new alternative systems to produce organic olive cuttings are needed. Several bacterial isolates, namely Pantoea sp. AG9, Chryseobacterium sp. AG13, Chryseobacterium sp. CT348, Pseudomonas sp. CT364 and Azospirillum brasilense Cd (ATCC 29729), have been used to induce rooting in olive semi-hardwood cuttings of Arbequina, Hojiblanca and Picual cultivars of olive (Olea europea L). The first four strains were previously selected as auxin-producing bacteria and by their ability to promote rooting in model plants. They have been classified on the basis of their 16S rDNA gene sequence. The known auxin producer A. brasilense Cd strain has been used as a reference. The inoculation of olive cuttings was performed in two different ways: (i) by dipping cuttings in a liquid bacterial culture or (ii) by immersing them in a paste made of solid bacterial inoculant and sterile water. Under nursery conditions all of the tested bacterial strains were able to induce the rooting of olive cuttings to a similar or greater extent than the control cuttings treated with indole-3-butyric acid (IBA). The olive cultivars responded differently depending on the bacterial strain and the inoculation method. The strain that consistently gave the best results was Pantoea sp. AG9, the only one of the tested bacterial strains to express the enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase. The results are also discussed in terms of potential commercial interest and nursery feasibility performance of these strains.

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Section: Bacterial Strains Used and Culture Conditionsmentioning

confidence: 99%

Alternative rooting induction of semi-hardwood olive cuttings by several auxin-producing bacteria for organic agriculture systems

Montero‐Calasanz

Santamarı́a

Albareda

et al. 2013

Span. j. agric. res.

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“…Therefore, a carrier or an appropriate formulation is of considerable importance for the viability of the inoculum. Several materials have been evaluated as potential carriers for bacterial inoculants, including alginate beads [29], peat [30], biochar [31], perlite [32] and vermiculite [33]. In our study, the survival and viability of the bacterial population differed in WBC, MBC and HTC-char carrier materials over a period of six weeks.…”

mentioning

confidence: 92%

Biochar-based Bradyrhizobium inoculum improves growth of lupin (Lupinus angustifolius L.) under drought stress

Egamberdieva

Reckling

Wirth

2017

European Journal of Soil Biology

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“…Expanded perlite has various physical properties with commercial applications including high porosity, low thermal conductivity, low bulk density, high sound absorption, high heat resistance, high surface area, and chemical inertness or stability. These properties make expanded perlite adaptable to applications in several industries including construction Işikdağ, 2007, 2008;Zukowski and Haese, 2010;Sengul et al, 2011;Celik et al, 2014), chemical (Vaou and Panias, 2010), air (Gutarowska et al, 2014) and liquid filtration (Chakir et al, 2002;Torab-Mostaedi et al, 2011;Akkaya, 2012), horticultural (Daza et al, 2000;Acuña et al, 2013;Asaduzzaman et al, 2013), and petrochemical (Perlite Institute). The specific uses of expanded perlite in several industries are shown in Figure S1 in the Supplementary Figures section.…”

Section: Introductionmentioning

confidence: 99%

Geology of the Selene perlite deposit in the northern Sierra Madre Occidental, northeastern Sonora, Mexico

Hinojosa-Prieto¹,

Vidal-Solano²,

Kibler³

et al. 2016

BSGM

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The Selene perlite ore deposit of northeastern Sonora, Mexico, lies at the southern edge of an extensive (85 × 35 km) assemblage of Early Oligocene-Miocene volcanic rocks. This fault-bounded and east-tilted volcanic assemblage is of variable composition and was erupted onto Cretaceous non-volcanic rocks. The volcanic ridge is located within the tectonically extended region of the northern Sierra Madre Occidental (SMO) silicic large igneous province. Geologic mapping reveals a faulted and uplifted bimodal volcanic sequence, dated as Late Oligocene, that contains more perlite outcrops than previously recognized and two new coplanar normal faults of Early Miocene age or younger that promoted the development of an adjacent, small half-graben filled by a volcaniclastic unit. The bimodal volcanic sequence comprises a basal Early Eocene rhyolitic lava and rhyolitic tuff overlain by a rhyolitic ignimbrite sheet, a middle flow-banded rhyolitic lava dome that hosts the Selene perlite flow, and the upper basalt on an erosional unconformity. The volcaniclastic unit rests in angular unconformity with the bimodal volcanic sequence, and was likely deposited in the Early Miocene. It comprises a lower fault breccia containing clasts of local eruptive products, a previously unidentified thin quartz arenite bed, and an upper, thick polymictic conglomerate containing clasts of perlite, rhyolite, andesite, and basalt. Potential sources for the bimodal (silicic and mafic) volcanic facies are distal and proximal-distal volcanic fissure vents, the locations of which were controlled by preexisting NW-SE and N-S normal faults and related fractures linked to the Mexican Basin and Range Extensional Province. This implies the bimodal volcanism to be synchronous with crustal extension, as recently shown for other areas of the SMO silicic large igneous province. Normal faulting in the area also influenced the formation, preservation, and exposure (uplift) of the Selene perlite flow. The structural discontinuities created a permeable uppermost crust that channeled meteoric water into the subsurface and promoted both the percolation and underground circulation of meteoric water and gases rising into the subsurface. The water-lava interactions led to the hydration of the flow-banded rhyolitic lava flow and the formation of huge amounts of perlite. The Selene perlite was partly preserved by the overlying basalt, but continued local normal faulting and subsequent erosion exposed the perlite ore at its current location.

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Perlite as a carrier for bacterial inoculants

Cited by 64 publications

References 17 publications

Alternative rooting induction of semi-hardwood olive cuttings by several auxin-producing bacteria for organic agriculture systems

Alternative rooting induction of semi-hardwood olive cuttings by several auxin-producing bacteria for organic agriculture systems

Biochar-based Bradyrhizobium inoculum improves growth of lupin (Lupinus angustifolius L.) under drought stress

Geology of the Selene perlite deposit in the northern Sierra Madre Occidental, northeastern Sonora, Mexico

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