Zinc solubilizing bacteria from the rhizosphere of rice as prospective modulator of zinc biofortification in rice

Gontia‐Mishra, Iti; Sapre, Swapnil; Tiwari, Sharad

doi:10.1016/j.rhisph.2017.04.013

Cited by 104 publications

(41 citation statements)

References 28 publications

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“…Inaquosorum. Previous reports demonstrate the ability of bacteria from the genus Pseudomonas to solubilize zinc from various insoluble zinc compounds (Di Simine and Sayer, 1998;Gontia-Mishra et al, 2017). The creation of acidic conditions in liquid media by bacteria isolates from the production of different organic acids has been also reported, similar to phosphorus, as the major cause of zinc solubilization (Saravanan et al, 2003;Ramesh et al, 2014).…”

Section: Discussionmentioning

confidence: 95%

“…In this sense, the isolates AP-JNFb-3-2 and RO-LGI.P-3-2, which were identified as belonging to the genus Pseudomonas, presented the greatest potential to act as agents of phosphorus solubilization. Zinc is a nutrient required by plants as a component of enzymatic reactions, carbohydrate metabolism, auxin synthesis and also plays a vital role in regulation of the gene expression needed for tolerance to environmental stresses (Gontia-Mishra et al, 2017). Zinc deficiency in crops is due to its low solubility rather than low availability in soil (Iqbal et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…Particularly in Brazilian agriculture, the success experienced with atmospheric nitrogen-fixing microorganisms in recent decades has encouraged the development and use of MI. Besides nitrogen fixation, MI may promote plant growth by increasing the production of organic acids and chelating substances, resulting in higher solubility of poor soil-soluble phosphorus and zinc (Chen YO et al, 2006;Gontia-Mishra et al, 2017). They also produce growth regulators such as auxins, cytokinins and gibberellins (Groppa et al, 2012) which can modulate root development and increase water and nutrient absorption by plants, as well as enhance disease control due to production of antibiotics or cell wall lytic enzymes (Sarma et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Many bacteria genera have been evaluated as MI, showing significant increases in plant-growth and yields. However, most of these studies have been screened and performed on annual crops (Groppa et al, 2012;Sarma et al, 2015;Gontia-Mishra et al, 2017), and there is a lack of knowledge with respect to long cycle plants. C. brasiliensis is a woody plant that has been gaining prominence due its economic importance for farmers, vigorous growth ability in degraded areas and its potential for the implantation of agroforestry systems.…”

Section: Introductionmentioning

confidence: 99%

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Screening of beneficial bacteria associated with Calophyllum brasiliense Cambess so as to develop microbial inoculants for agriculture

et al. 2019

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Beneficial bacteria belong to a group of microorganisms that are able to enhance plant growth by several mechanisms. In this study, phosphorus and zinc solubilizing, nitrogen-fixing and indole acetic acid (IAA) producing bacteria associated with C. brasiliensis were screened to develop microbial inoculants (MI) for use in agriculture. Characterization and identification of screened bacteria were also performed. A total of thirty-one nitrogen-fixing bacteria isolates were obtained, of which 28 showed the ability to solubilize phosphorus and 25 to solubilize zinc. The isolate AP-JNFb-3-2, belonging to the genus Pseudomonas, presented the highest value of solubilized phosphorus (100.4 µg mL-1). The isolates AP-JNFb-3-2 and RHI-JMVL-3-1, associated with the genera Pseudomonas and Enterobacter, respectively, showed the highest values for zinc solubilization (147.8 and 147.7 µg mL-1). Isolate RO-LGI.P-3-2, belonging to the genus Pseudomonas, was the most promising for IAA production (0.52 µg mL-1). The results obtained showed the presence of a large diversity of beneficial bacteria associated with C. brasiliensis, which may be explored as MI in agriculture.

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Screening of beneficial bacteria associated with Calophyllum brasiliense Cambess so as to develop microbial inoculants for agriculture

et al. 2019

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“…The plant biofortification mainly is used in micronutrient malnutrition or enriching plants with desirable nutrients or against hidden hunger (El-Ramady et al 2016b;Singh et al 2016;de Valença et al 2017;Díaz-Gómez et al 2017). This biofortification process also could cover several strategic or staple crops such as rice (Boldrin et al 2013;Shivay et al 2016;Chen et al 2017;Gontia-Mishra et al 2017), wheat (Shaikh and Saraf 2017), maize (Halilu et al 2016;Liu et al 2017;Sharma et al 2017), barley (Bityutskii et al 2017), beside other crops like Brassica sp. (Barrameda-Medina et al 2017), pea (Poblaciones and Rengel 2016), common bean (Ram et al 2016), potato (Kromann et al 2017;White et al 2017) and sweet potato (Laurie et al 2015).…”

Section: Foliar Nutrition As An Agrotechnique For Biofortificationmentioning

confidence: 99%

Foliar application: from plant nutrition to biofortification

Alshaal

El-Ramady

2017

EBSS

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IT is well known that, sustainable agriculture is an important part of sustainable development. This sustainable agriculture should lead to achieve food security and maintain the biodiversity of natural ecosystems. Sustainable agriculture also should have definitely a global perspective. The conservation of both soil and water resources, therefore, is considered an essential prerequisite as well as the efficient use of mineral and organic fertilizers. This could be achieved by improving agro-technology and better understanding of the essential processes in soils. Foliar application of agrochemicals including fertilizers should be improved seeking for the sustainability of agriculture. The present review will focus on the effects of foliar application of nutrients for plant nutrition and its biofortification. Proper timing of foliar application, endo-, exogenous and environmental factors affecting foliar nutrition, influence of mineral fertilizer nutritional quality of staple food crops and finally nano-foliar nutrition as well as postharvest quality of crops will be also highlighted.

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Efficacy evaluation of newly isolated zinc solubilizing bacteria for their potential effect on maize (Zea mays L.) under zinc deficient soil conditions

et al. 2023

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Zinc solubilizing bacteria (ZSB) induces the conversion of fixed and unavailable soil zinc to readily available zinc contributes plant zinc nutrition and fortification. The present research intended to determine the screening of plant growth‐promoting (PGP) traits of potent ZSB, biochemical and molecular characterization of ZSB, and assessment of potent ZSB for crop yield at the field level. Therefore, in the present study, molecular and functional characterization of native ZSB isolates was done to examine their response to plant growth performance and yield, mobilization of zinc, and acquisition by maize plants. Zinc solubilizing bacterial isolates namely, ZSB1, and ZSB 17 were solubilized insoluble zinc namely, ZnCO3, ZnO, Zn3(PO4)2 and significantly induced growth performance of maize crop at field conditions. A biochemical study revealed that both ZSB isolates were positive for catalase and urease production. Isolates ZSB1 & ZSB17 showed different PGP attributes like production of Indole‐3‐acetic acid (IAA), siderophore, NH3, and HCN. Both isolates were solubilized phosphate, potassium, and silica and showed 1‐aminocyclopropane‐1‐carboxylate (ACC)‐deaminase activity. 16S rRNA amplification and sequence study of ZSB1 and ZSB17 revealed that both the isolates were Cupriavidus sp. and Pantoea agglomerans, respectively, and novel. The results elucidated from pot studies demonstrated that both ZSB1 & ZSB17 were the more suitable isolates than other ZSB isolates, and these isolates were further tested for field studies. Cupriavidus sp. and Pantoea agglomerans strains increased Zn‐translocation toward grains and yield of Maize (cv: P3441) by 19.01% and 17.64%, respectively. We conclude that the novel indigenous ZSB strains substantially heightened zinc mobilization, the yield of maize crop, restore soil health, and can be suitable for biofortification and biofertilizers technology.

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Zinc solubilizing bacteria from the rhizosphere of rice as prospective modulator of zinc biofortification in rice

Cited by 104 publications

References 28 publications

Screening of beneficial bacteria associated with Calophyllum brasiliense Cambess so as to develop microbial inoculants for agriculture

Screening of beneficial bacteria associated with Calophyllum brasiliense Cambess so as to develop microbial inoculants for agriculture

Foliar application: from plant nutrition to biofortification

Efficacy evaluation of newly isolated zinc solubilizing bacteria for their potential effect on maize (Zea mays L.) under zinc deficient soil conditions

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