Inorganic Phosphorus Forms in Soufrière Hills Volcanic Ash and Volcanic Ash-Derived Soil

Ranatunga, Thilini D.; Taylor, Robert W.; Bhat, Kamala N.; Reddy, Seshadri S.; Senwo, Zachary N.; Jackson, B. L. J.

doi:10.1097/ss.0b013e3181b6deab

Cited by 7 publications

(5 citation statements)

References 24 publications

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“…Huang and Lapeyrie (49) observed that L. bicolor S238N mobilized more Al-P in rhizosphere soil of Pseudotsuga menziesii seedlings than was seen in soil of ϪECM seedlings receiving -Al treatment. Several studies have shown that both Al-P and Ca-P in acidic soil are the active IP fractions that can be used by plants, but the O-P fraction is an inactive fraction that is hardly used by plants (9,48,50). In contrast, the present study confirmed that L. bicolor mobilized not only the active Ca-P and/or Al-P fractions but also the inactive IP fraction (O-P) in yellow acidic soil with ϩAl treatment (Fig.…”

Section: Mobilization Of Ip By Ecm Inoculationmentioning

confidence: 99%

“…1a), mainly by inhibiting root elongation (4) and subsequently reducing the area of root contact with soil and nutrients (5). In addition, the activated Al fractions, which are often considered exchangeable Al (Al 3ϩ ) and hydroxyl Al [Al(OH) 2ϩ and Al(OH) 2 ϩ ] (6), may precipitate further with phosphate, leading to a decrease in phosphorus availability (7)(8)(9). This reaction exacerbates P deficiency in acidic soil, where P is easily adsorbed onto soil mineral surfaces and hardly mobilized after precipitation by iron and Al oxide minerals (9-12), although total P (TP) is adequate for plant growth and development.…”

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confidence: 99%

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Laccaria bicolor Mobilizes both Labile Aluminum and Inorganic Phosphate in Rhizosphere Soil of Pinus massoniana Seedlings Field Grown in a Yellow Acidic Soil

Wang

et al. 2020

Appl Environ Microbiol

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Plant growth is often limited by highly activated aluminum (Al) and low available phosphorus (P) in acidic soil. Ectomycorrhizal (ECM) fungi can improve their host plants’ Al tolerance by increasing P availability while decreasing Al activity in vitro or in hydroponic or sand culture systems. However, the effect of ECM fungi on inorganic P (IP) and labile Al in acidic soil in the field, particularly in conjunction with Al treatment, remains poorly understood. The present study aimed to determine the influence of ECM fungal association on the mobilization of IP and labile Al in rhizosphere soil of host plants grown in the field with external Al treatment and the underlying nutritional mechanism in plant Al tolerance. To do so, 4-week-old Pinus massoniana seedlings were inoculated with three ECM isolates (Laccaria bicolor 270, L. bicolor S238A, and L. bicolor S238N) and grown in a Haplic Alisol field with or without Al treatment for 12 weeks. Results showed that L. bicolor association enhanced the available P depletion and facilitated the mobilization of IP and labile Al, in turn improving the capacity of host plant to use Al-bound P, Ca-bound P, and occluded P, particularly when P. massoniana seedlings were inoculated with L. bicolor S238A. Inoculation with L. bicolor isolates also enhanced the solubility of labile Al and facilitated the conversion of acid-soluble Al into exchangeable Al. Our findings suggested that ECM inoculation could enhance plant Al tolerance in the field by mobilizing IP to improve the P bioavailability but not by decreasing Al activity. IMPORTANCE Here, we reveal the underlying nutritional mechanism in plant Al tolerance conferred by ectomycorrhizal (ECM)-fungus inoculation in the field and report the screening of a promising ECM isolate to assist phytoremediation and afforestation using Pinus massoniana in acidic soil in southern China. This study advances our understanding of the contribution of ECM fungi to plant–ECM-fungus symbiosis and highlights the vital role of ECM-fungus inoculation in plant Al tolerance. In addition, the results described in the present study confirm the importance of carrying out studies in the field rather than only in vitro studies. Our findings strengthen our understanding of the role of ECM-fungus association in detecting, utilizing, and transporting unavailable nutrients in the soil to enhance host plant growth and adaptability in response to adverse habitats.

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Section: Mobilization Of Ip By Ecm Inoculationmentioning

confidence: 99%

mentioning

confidence: 99%

Laccaria bicolor Mobilizes both Labile Aluminum and Inorganic Phosphate in Rhizosphere Soil of Pinus massoniana Seedlings Field Grown in a Yellow Acidic Soil

Wang

et al. 2020

Appl Environ Microbiol

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“…Установлено, что в фосфорном питании риса большая роль принадлежит окисному железу (Fe 3+ ), которое при условиях затопления переходит в более легко усваиваемую форму (Fe 2+ ) [10]. В фазе кущения максимальное содержание железофосфатов обнаруживалось по предшественнику ОПМТ (до 500 мг/кг в варианте Р120).…”

Section: водорастворимый алюмофосфатыunclassified

Influence of Precursors on the Content of Mineral Phosphorus Fractions in the Soils of Rice Fields in the Rostov Region.

Kuleshova¹,

Kasakova²,

Tatyanchenko³

2020

STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS. In the Frame of the XXIII Agribusiness Forum of the South of Russia and the Ex

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The article is devoted to the problem of phosphoric nutrition of rice on chestnut soils of the northernmost zone of rice cultivation in Russia. The paper reveals the role of water-soluble fractions of phosphorus, aluminosilicates, iron phosphates and calcium phosphates in the nutrition of rice plants during the growing season. The influence of the previous culture on the content and consumption of these fractions was established.

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“…In particular, the partial replacement of Portland cement by pyroclastic products in mortars and concrete, when available, may lead to a cheaper solution [ 10 ]. Moreover, in countries with active volcanoes, such as Southern Italy, pyroclastic products could be used to supply nutrients and reduce CO 2 from the atmosphere [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Multivariate Statistics, Mineralogy, and Radiological Hazards Assessment Due to the Natural Radioactivity Content in Pyroclastic Products from Mt. Etna, Sicily, Southern Italy

Caridi

Spoto

Mottese

et al. 2022

IJERPH

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In this article, an investigation of the natural radioactivity content of pyroclastic products from Mt. Etna, eastern Sicily, Southern Italy, was carried out. In particular, the assessment of the average activity concentration of the investigated radionuclides, related to the mineralogical phase composition of the analyzed samples, and the radiological health risk for the population, was performed. High Purity Germanium (HPGe) gamma-ray spectrometry was employed in order to quantify the average specific activity of 226Ra, 232Th, and 40K natural radioisotopes. The absorbed gamma dose rate (D), the radium equivalent activity (Raeq), the hazard indices (Hin and Hex), the annual effective dose equivalent outdoor (AEDEout), and the excess lifetime cancer risk (ELCR) were also estimated in order to assess any possible radiological hazard for the population. In our case, they were found to be lower than the maximum recommended values for the population members, thus reasonably excluding radiological hazard effects. Moreover, the identification of the source of the aforementioned naturally occurring radionuclides was attempted by X-ray Diffraction (XRD) and Micro-Raman Scattering (MRS), thereby recognizing the main radioisotope-bearing minerals present in the investigated pyroclastic products. Finally, Pearson correlation, Principal Component Analysis (PCA), and Hierarchical Cluster Analysis (HCA) were performed by processing observed radioactivity and radiological parameters in order to determine their correlation with the sampling locations.

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Inorganic Phosphorus Forms in Soufrière Hills Volcanic Ash and Volcanic Ash-Derived Soil

Cited by 7 publications

References 24 publications

Laccaria bicolor Mobilizes both Labile Aluminum and Inorganic Phosphate in Rhizosphere Soil of Pinus massoniana Seedlings Field Grown in a Yellow Acidic Soil

Laccaria bicolor Mobilizes both Labile Aluminum and Inorganic Phosphate in Rhizosphere Soil of Pinus massoniana Seedlings Field Grown in a Yellow Acidic Soil

Influence of Precursors on the Content of Mineral Phosphorus Fractions in the Soils of Rice Fields in the Rostov Region.

Multivariate Statistics, Mineralogy, and Radiological Hazards Assessment Due to the Natural Radioactivity Content in Pyroclastic Products from Mt. Etna, Sicily, Southern Italy

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