Mineral nutrient mobilization by plants from rock: influence of rock type and arbuscular mycorrhiza

Burghelea, Carmen I.; Zaharescu, Dragos G.; Dontsova, Katerina; Maier, Raina M.; Huxman, Travis E.; Chorover, Jon

doi:10.1007/s10533-015-0092-5

Cited by 68 publications

(44 citation statements)

References 52 publications

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“…Results from the first four months of the experiment showed that major nutrient mobilization (denudation and uptake in the vascular plant) is governed by element supply from parent mineral and plant physiological requirements 47 . Therefore, given similar biotic consortia in all rocks, the observed biotic differences in exchangeable fraction among rocks must be directly connected to biological response to major nutrient balances of each rock.…”

Section: Ree Uptake and Distribution In Plant As Affected By Rock Andmentioning

confidence: 99%

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Ecosystem Composition Controls the Early Fate of Rare Earth Elements during Incipient Soil Genesis

Zaharescu

Burghelea

Dontsova

et al. 2016

Preprint

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We used a model rock-biota system to demonstrate that ecosystem composition (microbial and plant) regulates the fate of REE during early biota-rock interactions.Graphical abstract: word cloud with article keywords, Buffalograss, and X-ray diffractogram. Main Manuscript 2The rare earth elements (REE) are of increasing importance in a variety of science and economic fields, including (bio)geosciences, paleoecology, astrobiology, and mining. Despite their great promise, REE fractionation in early plant-microbe-rock systems has largely remained elusive. We tested the hypothesis that REE mass-partitioning during the incipient weathering of basalt, rhyolite, granite and schist depends on the activity of microbes, plant, and arbuscular mycorrhiza.Pore-water element abundances reflected a rapid transition from abiotic to biotic weathering, the latter associated with lower aqueous loss and higher uptake. Abiotic dissolution contributed 38.6±19% to total denudation. Microbes incremented denudation, particularly in rhyolite, this effect associating with decreased bioavailable solid fractions in this rock. Total mobilization (aqueous+uptake) was ten times greater in planted treatments compared to abiotic control, REE masses in plant generally exceeding those in water. Plants of larger biomass further increased solid fractions, consistent with soil genesis. Mycorrhiza had a generally positive effect on total mobilization. The incipient REE weathering was dominated by inorganic dissolution enhanced by biotic respiration, the patterns of denudation largely dictated by mineralogy. A consistent biotic signature was observed in La:phosphate, mobilization:solid fraction in all rocks, as well as in the general pattern of denudation and uptake.The transformation of rock to soil supports Earth's terrestrial life. Soil genesis and evolution have been under scientific scrutiny for over a century. With recent advances in analytical chemistry, molecular/evolutionary biology, hydrology, ecology and remote sensing we are only now beginning to understand how different components of geosphere, hydrosphere, atmosphere, and biosphere work together at different scales to shape the surface of Earth and transform parent rock into soil that sustains the ecosystem 1,22,3,1,4,5 . Among the most reactive phases in the transformation of crustal rock are the earliest stages of mineral weathering when first microbial and plant communities interact with bedrock and spark the flow of energy and nutrients that feed into major biogeochemical cycles. The igneous rock-Earth's nutrient store, exhibits its largest thermodynamic disequilibrium at surface pressure and temperatures, where the oxic aqueous environment makes it highly susceptible to weathering. Rapid mineral transformations of crustal rock often accompany the earliest stages of weathering, and they are intensified under mineral colonization by microbiota and plant roots. Studying these early interactions in the natural soil-forming system has classically been focused on nutrients that Main Manuscript...

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Section: Ree Uptake and Distribution In Plant As Affected By Rock Andmentioning

confidence: 99%

“…rock weight) and planted with dehusked and pre-sterilized germinated grass seeds (20 per column, 2cm depth; purchased from Western Native Seed, Colorado, USA)47 . Control samples were inoculated with a sterilized inoculum to retain a consistent chemical elemental composition.…”

mentioning

confidence: 99%

Ecosystem Composition Controls the Early Fate of Rare Earth Elements during Incipient Soil Genesis

Zaharescu

Burghelea

Dontsova

et al. 2016

Preprint

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“…Basalts are among the most studied rocks because it provides nutrients for plants, especially calcium (Ca), magnesium (Mg), potassium (K) and micronutrients, such as boron (B), copper (Cu), manganese (Mn) and zinc (Zn) (Anda et al, 2015;Chathurika et al, 2015;Ramos et al, 2015). Plants rhizosphere and their associated microbial populations play a major role in the silicate minerals weathering (bioweathering) by increasing acidity, absorbing and releasing elements and organic ligands, as well as siderophores (Burghelea et al, 2015). Plant roots, ultimately, contribute to increase the dissolution rates of Ca and Mg silicates present in basaltic minerals (Akter and Akagi, 2005;Anda et al, 2015;Hinsinger et al, 2001;Silva et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Successive off take of elements by maize grown in pure basalt powder

Krahl¹,

Paz²,

AngÃ©lica³

et al. 2020

Afr. J. Agric. Res.

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Basalt powder wastes from mining activities have potential to be used as a natural fertilizer. Basalt minerals in agricultural soils may release plant nutrients and increase soil negative charge. In this work, the weathering of basalt promoted by maize rhizosphere was investigated. We studied the chemical and mineralogical composition of basalt, including cation exchange capacity, as well as the rate of elements offtake by maize grown in a pure basalt powder during seven successive growth cycles. A pot experiment was carried out under controlled environmental conditions; plant and rock materials were evaluated at the end of successive growth cycles. X-ray powder diffraction analysis showed diopside and andesine as main minerals of basalt, and smectite. Scanning electron microscopy images evidenced new amorphous components resulting from rhizosphere-induced weathering. The elements K, Ca, Mg, Al, B, Cu, Fe, Mn and Zn were measured in plant tissue, and related to the weathering of basalt minerals. The studied basalt, therefore, provides nutrients to plants and exhibits physicochemical properties, such as cation exchange capacity, especially important for highly weathered soils presenting low cation exchange capacity, such as Oxisols.

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“…Interactions between physical, chemical and biological processes enable the weathering of bedrock and the build‐up of soil, providing inorganic nutrients to terrestrial biota (Vitousek, ; Walker & Syers, ). Once roots have entered rock via a joint or crack, biochemical weathering is enhanced by moisture fluxes along the root, root respiration, low‐molecular‐weight organic acid exudation and other rhizosphere processes (Brantley et al, ; Burghelea et al, ; Chorover, Kretzschmar, Garcia‐Pichel, & Sparks, ; Pawlik, Phillips, & Šamonil, ). The rhizosphere processes include rhizodeposition, which comprises the release of carbon compounds from living and dying roots into the soil or rock which enhances nutrient release (Burghelea et al, ; Hinsinger, ; Lambers et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…Once roots have entered rock via a joint or crack, biochemical weathering is enhanced by moisture fluxes along the root, root respiration, low‐molecular‐weight organic acid exudation and other rhizosphere processes (Brantley et al, ; Burghelea et al, ; Chorover, Kretzschmar, Garcia‐Pichel, & Sparks, ; Pawlik, Phillips, & Šamonil, ). The rhizosphere processes include rhizodeposition, which comprises the release of carbon compounds from living and dying roots into the soil or rock which enhances nutrient release (Burghelea et al, ; Hinsinger, ; Lambers et al, ). Rock weathering is an important source of phosphorus (P) in young, nutrient‐rich landscapes (Walker & Syers, ); however, little is known on this process in old and nutrient‐impoverished landscapes.…”

Section: Introductionmentioning

confidence: 99%

Specialized roots of Velloziaceae weather quartzite rock while mobilizing phosphorus using carboxylates

et al. 2019

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Campos rupestres is an extremely phosphorus (P)‐impoverished rocky ecosystem in Brazil. Velloziaceae is an important plant family in this environment, and some species colonize exposed quartzite rock. However, we know virtually nothing about their root development and nutrient acquisition within the rock outcrops and their possible role in rock weathering and landscape formation. We tested the hypothesis that Velloziaceae dissolve P from the rock, enhancing rock weathering. The study was carried out with two Barbacenia species (Velloziaceae) that colonize quartzite rocks. We assessed the root specializations and exudates, and determined the mineralogical composition of the rocks. The quartzite rocks contained a low concentration of total P in a matrix composed predominantly of silica. Using transmission electron microscopy, we show root growth perpendicular to the rock‐bedding planes. A micro‐XRF set‐up at the XRF beamline of a synchrotron evidenced root‐associated rock dissolution. The investigated roots show novel morphological and physiological specializations, coined vellozioid roots, which are highly effective at P acquisition. These carboxylate‐releasing roots function like other specialized roots in nutrient‐depleted soils. The rocks represent a barrier for most species, but due to their chemical and physical actions inside the rocks, vellozioid roots play a pivotal role in rock weathering, contributing to shaping the campos rupestres landscapes. A plain language summary is available for this article.

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Mineral nutrient mobilization by plants from rock: influence of rock type and arbuscular mycorrhiza

Cited by 68 publications

References 52 publications

Ecosystem Composition Controls the Early Fate of Rare Earth Elements during Incipient Soil Genesis

Ecosystem Composition Controls the Early Fate of Rare Earth Elements during Incipient Soil Genesis

Successive off take of elements by maize grown in pure basalt powder

Specialized roots of Velloziaceae weather quartzite rock while mobilizing phosphorus using carboxylates

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