Influence of hypoxia on phosphorus cycling in Alappuzha mud banks, southwest coast of India

Mathew, Dayana; Gireeshkumar, T.R.; Balachandran, K.K.; Udayakrishnan, P B; Shameem, K.; Deepulal, P M; Nair, M.; Madhu, N.V.; Muraleedharan, K. R.

doi:10.1016/j.rsma.2020.101083

Cited by 6 publications

(4 citation statements)

References 59 publications

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“…P i concentrations also decrease as a function of soil development, ranging from an average of 684 µg /g soil in Entisols, to between 200 and 430 µg/g soil in Ultisols and Oxisols [29]. P i exists in different forms and proportions in soil, which may leach into streams to deposit P in ocean sediments, or be taken up by plants or soil microorganisms in the secondary P o cycle [41]. After mineralization by plant structures (e.g., roots, stems, leaves), dead soil animals, and microorganisms, a large share of the assimilated P o returns to soils [42].…”

Section: Basic P Forms and P Cycling In The Soilmentioning

confidence: 99%

“…P i exists in different forms and proportions in soil, which may leach into streams to deposit P in ocean sediments, or be taken up by plants or soil microorganisms in the secondary P o cycle [ 41 ]. After mineralization by plant structures (e.g., roots, stems, leaves), dead soil animals, and microorganisms, a large share of the assimilated P o returns to soils [ 42 ].…”

Section: Basic P Forms and P Cycling In The Soilmentioning

confidence: 99%

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Roles of Phosphate Solubilizing Microorganisms from Managing Soil Phosphorus Deficiency to Mediating Biogeochemical P Cycle

Tian

Zhang

et al. 2021

Biology

233

102

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Phosphorus (P) is a vital element in biological molecules, and one of the main limiting elements for biomass production as plant-available P represents only a small fraction of total soil P. Increasing global food demand and modern agricultural consumption of P fertilizers could lead to excessive inputs of inorganic P in intensively managed croplands, consequently rising P losses and ongoing eutrophication of surface waters. Despite phosphate solubilizing microorganisms (PSMs) are widely accepted as eco-friendly P fertilizers for increasing agricultural productivity, a comprehensive and deeper understanding of the role of PSMs in P geochemical processes for managing P deficiency has received inadequate attention. In this review, we summarize the basic P forms and their geochemical and biological cycles in soil systems, how PSMs mediate soil P biogeochemical cycles, and the metabolic and enzymatic mechanisms behind these processes. We also highlight the important roles of PSMs in the biogeochemical P cycle and provide perspectives on several environmental issues to prioritize in future PSM applications.

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Section: Basic P Forms and P Cycling In The Soilmentioning

confidence: 99%

Section: Basic P Forms and P Cycling In The Soilmentioning

confidence: 99%

Roles of Phosphate Solubilizing Microorganisms from Managing Soil Phosphorus Deficiency to Mediating Biogeochemical P Cycle

Tian

Zhang

et al. 2021

Biology

233

102

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“…The upwelling induced hypoxic conditions in mudbank regions were studied by many, and these hypoxic conditions induced significant changes in the presence of the elements as carbon, phosphorus, iron, and manganese [49][50][51]. Fig 5 shows the seasonal variations in temperature, salinity and dissolved oxygen in madbank region of Alappuzha [52]. Results show the variations of the above parameters based on observations at three locations -(1) mudbank region (M2), (2) alongshore non-mudbank region (M1) and (3) offshore non-mudbank region (M3).…”

Section: Biogeochemical Processes In Mudbanksmentioning

confidence: 99%

Characteristics of Mudbanks along the Southwest Coast of India

2021

EESRR

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Mudbank is a unique phenomenon observed along the south-west coast of India among all the Indian coastal regions during the Southwest Monsoon Season. The scientific reasons behind the formation and its persistence are vague. Mudbank is considered as a boon to the fishermen of Kerala, as they are getting reasonable catches during the occurrence of mudbanks using indigenous boats from the calm sea, which otherwise is in a fury during the rough Southwest Monsoon Season. Since the region, the Arabian Sea, is significant as a carbon sink due to its very high productivity because of different coastal ocean features, variations in the smaller and highly restricted coastal processes due to climate change can have a significant impact on the rates of global warming. Here, we consolidate the previous publications on various aspects of mudbanks with the reports of the occurrence of mudbanks on the south-west coast of India. A model for the prediction of the formation and location of mudbanks, inclusive of all the intrinsic and extrinsic parameters involved, through an extensive study is much relevant as far as the socio-economic and food security significance is concerned. Here, we discuss the most conducive factors for the formation of mudbank and its characteristics with special reference to Alappuzha, where the frequency of occurrence of mudbanks is maximum among the Indian coastal regions.

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“…Inorganic P is present in soil in a variety of forms and proportions (Mathew et al, 2020). It may leach into rivers to store P in marine sediments, or absorbed by plants or soil microbes to participate in the secondary organic phosphorus cycle.…”

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confidence: 99%

The Role of Phosphate-Solubilizing Microorganisms in Soil Health and Phosphorus Cycle: A Review

Salsabila,

Fitriatin,

Hindersah

2023

IJLSAR

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The role of phosphate-solubilizing microorganisms (PSM) in soil health and Phosphorus (P) cycle is a crucial aspect of agricultural productivity. Recent research has emphasized the importance of microorganisms in maintaining soil health. Phosphorus is an essential macronutrient for plant growth and development and significantly affects crop productivity. The PSM solubilize phosphate by producing metabolites such as organic acids, inorganic acids, hydrogen sulphide, exopolysaccharide, and siderophore. Studies have shown that the combination of PSM with phosphate fertilizers increase the efficiency of the fertilizers in soils. The efforts have been made to integrate exogenous soil microorganisms into P cycling models. This review highlights the critical role of microorganisms in maintaining soil health and promoting P cycle, emphasizing the importance of incorporating them into soil management practices.

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Influence of hypoxia on phosphorus cycling in Alappuzha mud banks, southwest coast of India

Cited by 6 publications

References 59 publications

Roles of Phosphate Solubilizing Microorganisms from Managing Soil Phosphorus Deficiency to Mediating Biogeochemical P Cycle

Roles of Phosphate Solubilizing Microorganisms from Managing Soil Phosphorus Deficiency to Mediating Biogeochemical P Cycle

Characteristics of Mudbanks along the Southwest Coast of India

The Role of Phosphate-Solubilizing Microorganisms in Soil Health and Phosphorus Cycle: A Review

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