Production of Phytosiderophores

Takagi, S.

doi:10.1016/b978-0-12-079870-4.50009-0

Cited by 72 publications

(41 citation statements)

References 44 publications

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“…Shi et al (1988) reported that the concentration of MA in the rhizosphere of barley at a distance of I mm from the root surface was in the range of 10-6 M. Takagi (1993), however, reported that the amount of MAs accumulated in the roots of Fe-deficient barley plants often amounted to 20 mg MAs g-l root (dry weight) per day, and that a greater proportion of MAs was secreted from the roots in a limited period under the control of a circadian clock. Based on the data reported by Takagi (1993), it was inferred that the concentration of MA should be higher in the rhizosphere closer to the root surface, and that the concentration of MA used in this study (100,uM) may be realistic. Figure 3 suggests that FeMA may be related to the amount of short-range ordered Fe minerals such as ferrihydrite.…”

Section: Discussionmentioning

confidence: 99%

“…Fine crystals of MA were obtained from the solutions containing pure MA (Takemoto et al 1978;Takagi 1993). The Fe-chelating activity was determined by using the 0-phenanthroline method (Takagi 1976(Takagi , 1993. The chemical structure of the purified MA was confirmed by comparing the Infra-red spectrum with that of a standard sample.…”

Section: Methodsmentioning

confidence: 99%

“…Gel filtration (Sephadex G-lO, Pharmacia Fine Chemicals) of the fractions with a Fe-chelating activity yielded pure MA. Fine crystals of MA were obtained from the solutions containing pure MA (Takemoto et al 1978;Takagi 1993). The Fe-chelating activity was determined by using the 0-phenanthroline method (Takagi 1976(Takagi , 1993.…”

Section: Methodsmentioning

confidence: 99%

“…Inoue et al (1993) reported that when MA was added to the aqueous suspension of ferrihydrite (F-5), the concentrations of MA and MAFe changed markedly within 2 h followed by a slight change afterwards. Therefore, the first fast reaction between MA and Fe (hydr)oxide is likely to end after 4 h. Mugineic acid and its derivatives are secreted periodically every morning from roots of Fe-deficient graminaceous plants (Takagi 1993) and degraded rapidly by microorganisms in soils (Watanabe and Wada 1989). Therefore, a 4-h reaction time in this study may be realistic.…”

Section: Distribution Of Ma Added To Fe (Hydr)oxidesmentioning

confidence: 99%

“…In these soils, mugineic acid (MA; Fig. 1) and its derivatives (MAs) are secreted from the roots of some graminaceous plants, and these compounds solubilize Fe(III) in soils by forming MAs-Fe(III) complexes (Takagi 1976(Takagi , 1993. In these complexes the availability of Fe to graminaceous plants is higher than in synthetic complexan-Fe complexes such as DTPA-Fe or microbially produced siderophore-Fe complexes, such as ferrichrome ).…”

mentioning

confidence: 99%

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Dissolution of iron from iron (Hydr)Oxides by mugineic acid

Hiradate

Inoue

1998

Soil Science and Plant Nutrition

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Distribution Of Ma Added To Fe (Hydr)oxidesmentioning

confidence: 99%

mentioning

confidence: 99%

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Dissolution of iron from iron (Hydr)Oxides by mugineic acid

Hiradate

Inoue

1998

Soil Science and Plant Nutrition

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Plant Probiotics for Nutrient Acquisition by Agriculturally Important Grasses: A Comprehensive Review of the Science and the Application

Swift

Denton

Melino

2019

Annual Plant Reviews Online

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Intensification of agricultural land and the overuse of inorganic fertilisers has led to soil acidification, depletion of organic matter, and environmental pollution. Approaches to protect soil health, including the enhancement of microbial diversity, are integral to improving crop productivity and food security. Metagenomics has rapidly improved our understanding of soil microbial diversity and function, while genetic techniques have helped to dissect the complex signal exchange between microorganisms and plants. This article presents and evaluates reported beneficial effects of plant growth‐promoting bacteria (PGPB), focussing on those capable of mobilising or solubilising nutrients and/or stimulating plant growth when applied to agriculturally important grasses. The agricultural industry has capitalised on these scientific advancements, generating microbial formulations for specific crop responses. However, scientific methodologies must be applied in order to overcome inherent limitations of many PGPBs including their inability to be cultured, their poorly defined or multiple modes of action, a low level of integration with the crop partner, and an unpredictability in translating beneficial plant responses to the field. Novel approaches such as engineered rhizospheres, enhancing endophytic systems, cereal nodule development, and the use of inoculant consortiums will be necessary to sustain growth in the biofertiliser industry.

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Accurate LC‐ESI‐MS/MS quantification of 2′‐deoxymugineic acid in soil and root related samples employing porous graphitic carbon as stationary phase and a ¹³C₄‐labeled internal standard

et al. 2014

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For the first time the phytosiderophore 2'-deoxymugineic acid (DMA) could be accurately quantified by LC-MS/MS in plant and soil related samples. For this purpose a novel chromatographic method employing porous graphitic carbon as stationary phase combined with ESI-MS/MS detection in selected reaction monitoring was developed. Isotope dilution was implemented by using in-house synthesized DMA as external calibrant and ¹³C₄-labeled DMA as internal standard (concentration levels of standards 0.1-80 μM, determination coefficient of linear regression R² > 0.9995). Sample preparation involved acidification of the samples in order to obtain complete dissociation of metal-DMA complexes. Excellent matrix related LOD and LOQ depending on different experimental setups were obtained in the range of 3-34 nM and 11-113 nM, respectively. Standard addition experiments and the implementation of the internal ¹³C₄-DMA standard proved the accuracy of the quantification strategy even in complex matrices such as soil solution. The repeatability of the method, including sample preparation, expressed as short- and long term precision was below 4 and 5% RSD, respectively. Finally, application in the context of plant and soil research to samples from rhizosphere sampling via micro suction cups, from soil solutions and soil adsorption/extraction studies revealed a DMA concentration range from 0.1 to 235 μM.

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Production of Phytosiderophores

Cited by 72 publications

References 44 publications

Dissolution of iron from iron (Hydr)Oxides by mugineic acid

Dissolution of iron from iron (Hydr)Oxides by mugineic acid

Plant Probiotics for Nutrient Acquisition by Agriculturally Important Grasses: A Comprehensive Review of the Science and the Application

Accurate LC‐ESI‐MS/MS quantification of 2′‐deoxymugineic acid in soil and root related samples employing porous graphitic carbon as stationary phase and a ¹³C₄‐labeled internal standard

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Production of Phytosiderophores

Cited by 72 publications

References 44 publications

Dissolution of iron from iron (Hydr)Oxides by mugineic acid

Dissolution of iron from iron (Hydr)Oxides by mugineic acid

Plant Probiotics for Nutrient Acquisition by Agriculturally Important Grasses: A Comprehensive Review of the Science and the Application

Accurate LC‐ESI‐MS/MS quantification of 2′‐deoxymugineic acid in soil and root related samples employing porous graphitic carbon as stationary phase and a 13C4‐labeled internal standard

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Accurate LC‐ESI‐MS/MS quantification of 2′‐deoxymugineic acid in soil and root related samples employing porous graphitic carbon as stationary phase and a ¹³C₄‐labeled internal standard