DEFINITION OF INTERNAL MORPHOLOGY AND STRUCTURAL CHANGES DUE TO DEHYDRATION OF RADISH (<i>RAPHANUS SATIVUS</i> L. CV. SUPRELLA) USING MAGNETIC RESONANCE IMAGING SPECTROSCOPY

Salerno, Anna; Pierandrei, F.; Rea, Elvira; Sequi, P.; Valentini, Massimiliano

doi:10.1111/j.1745-4557.2005.00046.x

Cited by 17 publications

(13 citation statements)

References 25 publications

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“…The bulb is composed of a cortex and a central part with storage parenchyma and numerous secondary xylem elements (Figure 3c–e) associated with anomalous cambium‐producing tertiary phloem (Hayward, 1938). Structural changes due to dehydration that result in deterioration of radish quality have already been studied using MRI (Salerno et al. , 2005).…”

Section: Resultsmentioning

confidence: 99%

Combined MRI–PET dissects dynamic changes in plant structures and functions

et al. 2009

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SUMMARYUnravelling the factors determining the allocation of carbon to various plant organs is one of the great challenges of modern plant biology. Studying allocation under close to natural conditions requires noninvasive methods, which are now becoming available for measuring plants on a par with those developed for humans. By combining magnetic resonance imaging (MRI) and positron emission tomography (PET), we investigated three contrasting root/shoot systems growing in sand or soil, with respect to their structures, transport routes and the translocation dynamics of recently fixed photoassimilates labelled with the shortlived radioactive carbon isotope 11 C. Storage organs of sugar beet (Beta vulgaris) and radish plants (Raphanus sativus) were assessed using MRI, providing images of the internal structures of the organs with high spatial resolution, and while species-specific transport sectoralities, properties of assimilate allocation and unloading characteristics were measured using PET. Growth and carbon allocation within complex root systems were monitored in maize plants (Zea mays), and the results may be used to identify factors affecting root growth in natural substrates or in competition with roots of other plants. MRI-PET co-registration opens the door for non-invasive analysis of plant structures and transport processes that may change in response to genomic, developmental or environmental challenges. It is our aim to make the methods applicable for quantitative analyses of plant traits in phenotyping as well as in understanding the dynamics of key processes that are essential to plant performance.

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Section: Resultsmentioning

confidence: 99%

Combined MRI–PET dissects dynamic changes in plant structures and functions

et al. 2009

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“…Radish internal morphology modifications due to As contamination have been assessed by means of magnetic resonance imaging (MRI) [19,20], and inductively coupled plasma atomic emission spectroscopy (ICP-AES) was used to quantify the As uptake by radish [20]. Recently, the high-resolution magic angle spinning-nuclear magnetic resonance (HRMAS-NMR) tool has been proposed as a reliable system, based on NMR spectroscopy, for assessing the metabolome of foodstuff.…”

Section: Introductionmentioning

confidence: 99%

Use of Arsenic Contaminated Irrigation Water for Lettuce Cropping: Effects on Soil, Groundwater, and Vegetal

Beni

Marconi

Boccia³

et al. 2010

Biol Trace Elem Res

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The present study investigated the effects of using arsenic (As) contaminated irrigation water in Lactuca sativa L. cropping. Two different arsenic concentrations, i.e., 25 and 85 μg L(-1) and two different soils, i.e., sandy and clay loam, were taken into account. We determined the arsenic mobility in the different soil fractions, its amount in groundwater, and the phytotoxicity and genotoxicity. Nuclear magnetic resonance (NMR) and inductively coupled plasma (ICP) were used to assess the lettuce metabolic profile changes and the arsenic uptake by the plant, respectively, as a function of the various conditions studied, i.e., As content and type of soil. Data indicated that at both concentrations in sandy soil, arsenic is in part quickly leached and thus present in groundwater and in part absorbed by the vegetable, being therefore readily available for assimilation by consumption. NMR results reported a large modification of the metabolic pattern, which was depending on the pollutant amount. In clay loam soil, the groundwater had a low As content with respect to sandy soil, and NMR and ICP performed on the lettuce did not reveal severe changes related to As, most likely because the metalloid is bound to the colloidal fraction.

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“…The MRI images differ slightly from what has been reported previously [26], in terms of the regularity of the radial structures and the presence of dark spots. The outermost cell layer changed also; the latter consist of two concentric spherical crowns, the outer characterised by fast-moving water molecules, and the inner containing strongly bound water.…”

Section: Radish Tuber Analysis Mrimentioning

confidence: 37%

Effects of arsenic on soil–plant systems

Sturchio¹,

Boccia²,

Meconi³

et al. 2011

Chemistry and Ecology

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Arsenic is a highly toxic element and its presence in food composites is a matter of concern for the well-being of both humans and animals. The aim of this study was to evaluate the effects of arsenic on food vegetables and polluted soils. Vicia faba seedlings grown on polluted soils were used to evaluate the phytotoxic and genotoxic effects by comet assay. The results of these tests were dependent upon different types of soils. We studied different types of soils and contamination effects on Raphanus sativus L. and Lactuca sativa L. cropping by using magnetic resonance imaging (MRI) and nuclear magnetic resonance (NMR). For both analytical approaches, we found indicators correlated to As contamination, chemical for NMR, i.e. modification of composition, and morphological for MRI, i.e reorganisation of internal tissues. Samples of vegetables were collected to analyse their micro-and macronutrient contents and level of metals using inductively coupled plasma optical emission spectroscopy (ICP-OES) analysis, which confirms the results obtained by MRI.

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DEFINITION OF INTERNAL MORPHOLOGY AND STRUCTURAL CHANGES DUE TO DEHYDRATION OF RADISH (RAPHANUS SATIVUS L. CV. SUPRELLA) USING MAGNETIC RESONANCE IMAGING SPECTROSCOPY

Cited by 17 publications

References 25 publications

Combined MRI–PET dissects dynamic changes in plant structures and functions

Combined MRI–PET dissects dynamic changes in plant structures and functions

Use of Arsenic Contaminated Irrigation Water for Lettuce Cropping: Effects on Soil, Groundwater, and Vegetal

Effects of arsenic on soil–plant systems

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