Cobalt in soils: sources, fate, bioavailability, plant uptake, remediation, and management

Srivastava, Prashant; Bolan, Nanthi; Casagrande, Verônica; Benjamin, Joshua; Adejumo, Sifau A.; Ṣābir, Muḥammad; Farooqi, Zia-ur-Rehman; Saifullah, -

doi:10.1016/b978-0-323-85621-8.00007-8

Cited by 4 publications

(2 citation statements)

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“…Uncertainty surrounds the direct involvement of cobalt in plant metabolism. Insufficient evidence exists for both Co's direct impact on plants and its bioactive form [1]. Moreover, the mechanisms of Co-mediated beneficial effects on plants are not well-elucidated.…”

Section: Beneficial Effects Of Co On Plantsmentioning

confidence: 99%

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Cobalt in Soil-Plant-Human System: A Data-Analysis Review

Khalid,

Shahid,

Naz

et al. 2023

Preprint

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Cobalt (Co) is a transition metal and is classified as a beneficial metal for plants, but its benefits for plants remain obscure. Cobalt has been reported to negatively affect plant physiochemical processes both at higher (toxic) and lower (deficient) applied levels. High concentrations of cobalt in plant organs cause irreversible changes to the plant cells, mainly via enhanced production of reactive radicals. Moreover, Co and its compound play an essential role in humans as they are the central atoms of cobalamin, a co-enzyme precursor whose absence causes anemia. Hence, the optimum Co supply to plants is critical for customary plant metabolic workings. Henceforth, monitoring Co behavior in the soil-plant-human system is highly imperative. This review highlighted the latest literature on (i) Co in soil and plants; (ii) its mobility and phyto-availability in soil; (iii) phytouptake and translocation towards shoot tissues; (iv) toxic and deficient effects of Co on plants; (v) plant detoxification mechanisms under increased Co levels inside plants; and (v) its role in the human body. For this purpose, 1026 plant observations from literature data were analyzed related to Co biogeochemical behavior in the soil-plant system. The data analysis revealed an overall increase in 567 observations and a decrease in 381 observations. However, these general trends in plant responses vary significantly for different types of plant species and physiological attributes. Overall, the current review delineates an updated and critical representation of the biogeochemical behavior of Co in the soil-plant-human system, supported by up-to-date 9 main tables, 14 supporting tables, and 3 figures. The authors believe that the literature presented here can be of great interest to scientists, researchers, policymakers, and graduate-level students.

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Section: Beneficial Effects Of Co On Plantsmentioning

confidence: 99%

“…Cobalt (Co) is classified as a transition/heavy/trace metal. It is considered a beneficial component to the metabolism of all animals, including humans, and the prokaryotes [1]. This metal is a key constituent of cobalamin, also identified as vitamin B12, which is required for human and animal nutrition [2].…”

Section: Introductionmentioning

confidence: 99%

Cobalt in Soil-Plant-Human System: A Data-Analysis Review

Khalid,

Shahid,

Naz

et al. 2023

Preprint

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Soil contribution to the cobalamin (vitamin B12) supply of terrestrial organisms

Jörgensen,

Joergensen

2024

Biol Fertil Soils

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Cobalamin (Vitamin B12) is a cofactor for many enzymes, including those in bacteria, archaea, algae, and mammals. In humans, cobalamin deficiency can lead to pernicious anaemia as well as gastrointestinal and neurological disorders. In contrast to marine ecosystems, there is a great paucity of information on the role of soils and terrestrial plants in the supply of cobalt and cobalamin to microorganisms and animals. The content of cobalt cations in most soils is usually sufficient to maintain growth, and the density of cobalamin-producing soil prokaryotes is high in comparison to water bodies. The cobalt content of most soils is usually sufficient in comparison with water, and the density of cobalamin-producing soil prokaryotes is high. Therefore, terrestrial plants are an important cobalt source for cobalamin-producing rumen and gut prokaryotes. The major source of cobalamin for most other animals is the meat of ruminants as well as other animal-derived products, bacteria in insects, and coprophagy, e.g., by rodents. In addition, faecal deposits, and fertilizers as well as soil bacteria add to the cobalamin supply. However, those archaea and bacteria that do not produce cobalamin obtain this coenzyme or its analogues from the environment. Therefore, presence or absence of cobalamin-producing species in soil affects the whole soil microbiome. However, our knowledge concerning microbial producers and consumers of cobalamin in soils is still limited, despite some recent advances. The main reasons are a low cobalamin content in soils and challenging methods of determination. In this regard, advanced analytical knowledge and technical equipment are required, which are usually unavailable in soil laboratories. This review provides relevant methodological information on sample homogenization, extraction, concentration, and purification as well as analysis of cobalamin.

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