Plant growth promoting rhizobacteria in sustainable agriculture: from theoretical to pragmatic approach

Mustafa, S. E. S.; Kabir, Saba; Shabbir, Umbreen; Batool, Rida

doi:10.1007/s13199-019-00602-w

Cited by 66 publications

(30 citation statements)

References 68 publications

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“…Several genera have been described as having antagonistic behavior to one or more plant pathogen, such as Bacillus (Heidarzadeh and Baghaee-Ravari, 2015), Azospirillum (Tortora et al, 2011), Pseudomonas, Coniothyrium, Pythium (Woo and Lorito, 2007), Serratia, Burkholderia and Staphylococcus (Opelt et al, 2007). The use of these microorganisms has shown good results on improving plant growth over time when colonization of rhizosphere is successful (Backer et al, 2018;Mustafa et al, 2019;Tabassum et al, 2017).…”

Section: Pathogen Antagonismmentioning

confidence: 99%

“…It is forecast that PGPB market share will reach USD 1.66 billion by 2022 (Timmusk et al, 2017). Market ready mixes of bacteria and/or fungi exists, such as mixes of Bacillus amyloliquefaciens with Trichoderma virens or the combination of Trichoderma with Bradyrhizobium (Backer et al, 2018), and more PGPB based products are available commercially, as listed by Mustafa et al (2019).…”

Section: Introductionmentioning

confidence: 99%

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Promising bacterial genera for agricultural practices: An insight on plant growth-promoting properties and microbial safety aspects

Ferreira

Soares

2019

Science of The Total Environment

168

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In order to address the ever-increasing problem of the world's population food needs, the optimization of farming crops yield, the combat of iron deficiency in plants (chlorosis) and the elimination/reduction of crop pathogens are of key challenges to solve. Traditional ways of solving these problems are either unpractical on a large scale (e.g. use of manure) or are not environmental friendly (e.g. application of iron-synthetic fertilizers or indiscriminate use of pesticides). Therefore, the search for greener substitutes, such as the application of siderophores of bacterial source or the use of plant-growth promoting bacteria (PGPB), is presented as a very promising alternative to enhance yield of crops and performance. However, the use of microorganisms is not a risk-free solution and the potential biohazards associated with the utilization of bacteria in agriculture should be considered. The present work gives a current overview of the main mechanisms associated with the use of bacteria in the promotion of plant growth. The potentiality of several bacterial genera (Azotobacter, Azospirillum, Bacillus, Pantoea, Pseudomonas and Rhizobium) regarding to siderophore production capacity and other plant growth-promoting properties are presented. In addition, the field performance of these bacteria genera as well as the biosafety aspects related with their use for agricultural proposes are reviewed and discussed.

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Section: Pathogen Antagonismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Promising bacterial genera for agricultural practices: An insight on plant growth-promoting properties and microbial safety aspects

Ferreira

Soares

2019

Science of The Total Environment

168

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“…Furthermore, several reports have shown that diversity and composition of soil microbial community are critical to the maintenance of soil health and productivity [ 8 , 9 ]. In particular, some taxa could directly or indirectly affect soil productivity by producing plant growth hormones, solubilizing soil P and enhancing nitrogen fixation [ 10 ], such as Bacillus [ 11 ], Pseudomonas [ 12 ] and arbuscular mycorrhizal fungi (AMF) [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Intercropping with Potato-Onion Enhanced the Soil Microbial Diversity of Tomato

Gao

Zhou

et al. 2020

Microorganisms

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Intercropping can achieve sustainable agricultural development by increasing plant diversity. In this study, we investigated the effects of tomato monoculture and tomato/potato-onion intercropping systems on tomato seedling growth and changes of soil microbial communities in greenhouse conditions. Results showed that the intercropping with potato-onion increased tomato seedling biomass. Compared with monoculture system, the alpha diversity of soil bacterial and fungal communities, beta diversity and abundance of bacterial community were increased in the intercropping system. Nevertheless, the beta-diversity and abundance of fungal community had no difference between the intercropping and monoculture systems. The relative abundances of some taxa (i.e., Acidobacteria-Subgroup-6, Arthrobacter, Bacillus, Pseudomonas) and several OTUs with the potential to promote plant growth were increased, while the relative abundances of some potential plant pathogens (i.e., Cladosporium) were decreased in the intercropping system. Redundancy analysis indicated that bacterial community structure was significantly influenced by soil organic carbon and pH, the fungal community structure was related to changes in soil organic carbon and available phosphorus. Overall, our results suggested that the tomato/potato-onion intercropping system altered soil microbial communities and improved the soil environment, which may be the main factor in promoting tomato growth.

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“…The available studies have revealed correlations between IAA and the root growth. IAA promotes root initiation, cell division, and cell enlargement, thereby increasing root surface area by enhancing the formation of lateral and adventitious roots (Kudoyarova et al 2017;Gao et al 2019;Mustafa et al 2019) and subsequently increases nutrients uptake by plant (Carrillo et al 2002). We observed that among the monoculture treatments, M. arborescens exhibited a maximum increase in root dry weight, followed by E. hormaechei, because of their ability to produce high levels of IAA.…”

Section: Discussionmentioning

confidence: 76%

Role of Dominant Phyllosphere Bacteria with Plant Growth–Promoting Characteristics on Growth and Nutrition of Maize (Zea mays L.)

Abadi

Sepehri

Rahmani³

et al. 2020

J Soil Sci Plant Nutr

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Plant growth-promoting bacteria (PGPB) inhabiting the phyllosphere improve the growth and yield of plants by producing natural growth regulators. The objectives of this study were to identify and characterize the indigenous PGPB of maize phyllosphere and to evaluate their ability to improve growth and nutritional status of maize (Zea mays L.). The bacteria were isolated from phyllosphere of maize in the fields located at different geographical locations and screened for various plant growth-promoting (PGP) traits. The most promising PGPB were identified by 16S rRNA gene sequence analysis. A greenhouse experiment was carried out in a completely randomized design with the foliar application of 15 different bacterial treatments. It was found that members of genera Bacillus, Pseudomonas, Microbacterium, Stenotrophomonas, Enterobacter, Pseudarthrobacter, and Kocuria were the most dominant PGPB in maize phyllosphere. Foliar spray of M. arborescens, B. subtilis + S. maltophilia, S. maltophilia, B. megaterium, and E. hormaechei significantly increased the shoot dry weight by 10.40, 9.53, 8.86, 8.73, and 6.00% compared with the control, respectively. M. arborescens and S. maltophilia isolates with the ability to produce indole-3-acetic acid (IAA) had positive effects on dry weight of the shoot. E. hormaechei showed a marked nitrogenase activity, phosphate solubilization, and IAA production and was the most effective treatment in improving the uptake of most nutrients. The nitrogenase activity and IAA production were generally considered to be the most important PGP traits of the bacteria when applied via foliar spray. Overall, the findings presented in this study indicate that the foliar application of the leaf-colonizing PGPB enhanced the growth and nutritional status of maize.

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Plant growth promoting rhizobacteria in sustainable agriculture: from theoretical to pragmatic approach

Cited by 66 publications

References 68 publications

Promising bacterial genera for agricultural practices: An insight on plant growth-promoting properties and microbial safety aspects

Promising bacterial genera for agricultural practices: An insight on plant growth-promoting properties and microbial safety aspects

Intercropping with Potato-Onion Enhanced the Soil Microbial Diversity of Tomato

Role of Dominant Phyllosphere Bacteria with Plant Growth–Promoting Characteristics on Growth and Nutrition of Maize (Zea mays L.)

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