Microbial Mediated Zinc Solubilization in Legumes for Sustainable Agriculture

Saini, Pawan; Nagpal, Sharon; Saini, Pooja; Kumar, Arun; Gani, Mudasir

doi:10.1002/9781119644798.ch14

Cited by 6 publications

(6 citation statements)

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“…The reason for this might be the structural role of bacteria in different metabolic, enzymatic, and biochemical processes [50], which should proactively increase Zn and other nutrients availability to plants [44]. Plantsmicrobe interaction in root rhizosphere increased Zn solubilization and availability in the plant tissues of legume crops [51]. Previous studies have shown that the sequencing of bacterial inoculants (especially Bacillus sp.)…”

Section: Discussionmentioning

confidence: 99%

Common Bean Yield and Zinc Use Efficiency in Association with Diazotrophic Bacteria Co-Inoculations

et al. 2021

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Enrichment of staple food with zinc (Zn) along with solubilizing bacteria is a sustainable and practical approach to overcome Zn malnutrition in human beings by improving plant nutrition, nutrient use efficiency, and productivity. Common bean (Phaseolus vulgaris L.) is one of a staple food of global population and has a prospective role in agronomic Zn biofortification. In this context, we evaluated the effect of diazotrophic bacterial co-inoculations (No inoculation, Rhizobium tropici, R. tropici + Azospirillum brasilense, R. tropici + Bacillus subtilis, R. tropici + Pseudomonas fluorescens, R. tropici + A. brasilense + B. subtilis, and R. tropici + A. brasilense + P. fluorescens) in association with soil Zn application (without and with 8 kg Zn ha−1) on Zn nutrition, growth, yield, and Zn use efficiencies in common bean in the 2019 and 2020 crop seasons. Soil Zn application in combination with R. tropici + B. subtilis improved Zn accumulation in shoot and grains with greater shoot dry matter, grain yield, and estimated Zn intake. Zinc use efficiency, recovery, and utilization were also increased with co-inoculation of R. tropici + B. subtilis, whereas agro-physiological efficiency was increased with triple co-inoculation of R. tropici + A. brasilense + P. fluorescens. Therefore, co-inoculation of R. tropici + B. subtilis in association with Zn application is recommended for biofortification and higher Zn use efficiencies in common bean in the tropical savannah of Brazil.

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Section: Discussionmentioning

confidence: 99%

Common Bean Yield and Zinc Use Efficiency in Association with Diazotrophic Bacteria Co-Inoculations

et al. 2021

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“…In the recent past, a lot of attention has been directed towards the potential of zinc solubilization by soil microbial communities (Khanghahi et al, 2018;Kushwaha et al, 2020;Saini et al, 2021) to remedy soil zinc deficiency. The soil microbes that are capable of solubilizing zinc from the insoluble sources are generally referred to as zinc solubilizing microbes (ZSMs) (Kushwaha et al, 2020;Rani et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…The soil microbes that are capable of solubilizing zinc from the insoluble sources are generally referred to as zinc solubilizing microbes (ZSMs) (Kushwaha et al, 2020;Rani et al, 2020). In addition to zinc solubilization, ZSMs can also enhance the capabilities of plants to uptake Zn from the soil, thus improving enrichment of Zn in the edible plant parts (Khanghahi et al, 2018;Kushwaha et al, 2020;Rani et al, 2020;Saini et al, 2021). The ZSMs, existing either in bacteria or fungal nature, may increase bioavailability of Zn to plants from the insoluble sources (Dhaked et al, 2017;Hussain et al, 2018) by employing different biological processes involving chelation, chemical transformation and production of organic acids (Fasim et al, 2002;Saravan et al, 2004;Mumtaz et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Influence of Farmyard Manure Application on Potential Zinc Solubilizing Microbial Species Abundance in a Ferralsol of Western Kenya

Bolo,

Mucheru-Muna,

Kachiuru

et al. 2023

Preprint

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Zinc is an important nutrient for plant growth and development. Its availability is influenced by zinc solubilizing microbes (ZSM). Effects of commonly promoted agronomic practices on the abundance of ZSM are so far not well understood. In this study, we assessed the effects of farmyard manure (FYM) application, either sole, or in combination with residue and/or inorganic fertilizer inputs on ZSM community structure using 11 treatments in a long-term (17 years) integrated soil fertility management experiment located in western Kenya, The study was conducted in 2019. Bacterial and fungal community composition (at 0-15 cm depth) was evaluated by amplicon sequencing on an Illumina Miseq platform following the manufacturer’s guidelines. Microbial diversity indices (Shannon, Simpson and Chao1) and statistical analyses were computed using R project packages. Putative ZSM (i.e., the ZSM generally considered to possess the zinc solubilizing capabilities) were clustered in two major clades based on either application or no application of FYM. Sole application of FYM significantly (P<0.05) increased the abundance of several ZSM under maize-tephrosia rotation. In addition, systems with combined application of FYM with other inputs generally showed significantly increasing trends for some ZSM under maize-tephrosia rotation. Moreover, combined application of FYM and P rather than P only significantly increased abundance of some ZSM under maize-monocropping systems. Furthermore, besides affecting ZSM abundance, soil chemical variables involving soil organic carbon (SOC), total N and Olsen P significantly increased with FYM application. This study indicated that management practices like application of FYM that increase SOC, and other soil chemical parameters, also/concomitantly increase ZSM abundance; implying enhanced capacities for microbial-linked zinc availability.

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“…In the recent past, a lot of attention has been directed towards the potential of zinc solubilization by soil microbial communities [12][13][14][15] to remedy soil zinc deficiency. The soil microbes that are capable of solubilizing zinc from insoluble sources are generally referred to as zinc solubilizing microbes (ZSMs) [12,14].…”

Section: Introductionmentioning

confidence: 99%

“…The soil microbes that are capable of solubilizing zinc from insoluble sources are generally referred to as zinc solubilizing microbes (ZSMs) [12,14]. In addition to zinc solubilization, ZSMs can enhance the capabilities of plants to uptake Zn from the soil, thus improving the enrichment of Zn in the edible plant parts [12][13][14][15]. The ZSMs, existing either in bacteria or fungal nature, may increase the bioavailability of Zn to plants from insoluble sources [16,17] by employing different biological processes involving chelation, chemical transformation and the production of organic acids [1,18,19].…”

Section: Introductionmentioning

confidence: 99%

Influence of Farmyard Manure Application on Potential Zinc Solubilizing Microbial Species Abundance in a Ferralsol of Western Kenya

Bolo,

Mucheru-Muna,

Mwirichia

et al. 2023

Agriculture

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Zinc is an important nutrient for plant growth and development. Its availability is influenced by zinc solubilizing microbes (ZSMs). The effects of commonly promoted agronomic practices on the abundance of ZSMs are so far not well understood. In this study, conducted in 2019, we assessed the effects of farmyard manure (FYM) application, either sole or in combination with residue and/or inorganic fertilizer inputs, on ZSM community structure using 11 treatments in a long-term (17 years) integrated soil fertility management experiment located in Western Kenya. Bacterial and fungal community composition were evaluated by amplicon sequencing on an Illumina MiSeq platform. The results showed that putative ZSMs (i.e., the ZSMs generally considered to possess the zinc solubilizing capabilities) were clustered in two major clades based on either the application or no application of FYM. Sole application of FYM significantly (p < 0.05) increased the abundance of several ZSMs under a maize–Tephrosia rotation. In addition, systems with the combined application of FYM with other inputs generally showed significantly increasing trends for some ZSMs under a maize–Tephrosia rotation. Moreover, the combined application of FYM and P rather than only P significantly increased the abundance of some ZSMs under maize monocropping systems. Furthermore, as well as affecting ZSM abundance, soil chemical variables involving soil organic carbon (SOC), total N and Olsen P significantly increased with FYM application. This study indicated that management practices such as the application of FYM that increase SOC, and other soil chemical parameters, also/concomitantly increase ZSM abundance. These results imply enhanced capacities for microbial-linked zinc availability with FYM application.

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Microbial Mediated Zinc Solubilization in Legumes for Sustainable Agriculture

Cited by 6 publications

References 106 publications

Common Bean Yield and Zinc Use Efficiency in Association with Diazotrophic Bacteria Co-Inoculations

Common Bean Yield and Zinc Use Efficiency in Association with Diazotrophic Bacteria Co-Inoculations

Influence of Farmyard Manure Application on Potential Zinc Solubilizing Microbial Species Abundance in a Ferralsol of Western Kenya

Influence of Farmyard Manure Application on Potential Zinc Solubilizing Microbial Species Abundance in a Ferralsol of Western Kenya

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