Isolation and characterization of three new PGPR and their effects on the growth of <i>Arabidopsis</i> and <i>Datura</i> plants

Rahmoune, Bilal; Morsli, Abdelkader; Khelifi-Slaoui, Majda; Khelifi, Lakhdar; Strueh, Andrew; Erban, Alexander; Kopka, Joachim; Prell, Jürgen; Dongen, Joost T. van

doi:10.1080/17429145.2016.1269215

Cited by 49 publications

(33 citation statements)

References 35 publications

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“…PGPR had direct mechanisms through facilitating nutrient uptake or increasing nutrient availability by nitrogen fixation, solubilization of nutrients, mineralization of organic compounds and production of phytohormones (Bhardwaj, Ansari, Sahoo, & Tuteja, 2014). PGPR supported plant growth also through production of siderophore (low molecular weight iron-chelating compound) (Rahmoune et al, 2017), of which the plant can take up iron in large number (Sujatha & Ammani, 2013) and phytohormone (Zahedi & Abbasi, 2015). Siderophoer as a sole source allowed the plant to take up iron in large number (Sujatha & Ammani, 2013) and enhanced plant chlorophyll content (Sharma & Johri.…”

Section: Plant Growth Improvement and White Rust Incidencementioning

confidence: 99%

Application of PGPR and Antagonist Fungi-based Biofungicide for White Rust Disease Control and Its Economyc Analysis in Chrysanthemum Production

Hanudin¹,

Budiarto²,

Marwoto³

2017

Agrivita.J.Agr.Sci

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Plant growth promoting rhizobacteria (PGPR) application in combination with other antagonist microbes as biopesticide have been considered in many crops. Our research was conducted to evaluate the efficacy of these useful combinations with the carrying agent for growth promotion, thus lowering white rust incidence in chrysanthemum production. The experiment was carried out at three cooperative farmer sites located in Cipanas, Cianjur, West Java, Indonesia from January to December 2016. The production process was arranged in a paired treatment; a combination of PGPR and antagonist fungi (without supplemental chemical fertilizers and fungicide), furtherly called biofungicide and common farmer practices. The results showed that the application of biofungicide promoted equal plant growth quality as common practices. White rust incidency was lower at biofungicide treatment sites, thus increased the markertable flowers quantity. The production cost was considered more efficient in biofungicide sites, due to cheaper price of biofungicide than chemical fertilizers and fungicide. The increase of marketable stalks and cost efficiency led to an increase of net income of biofungicide based production as also viewed from higher Revenue Cost Ratio (R/C) than common farmer practices.

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Section: Plant Growth Improvement and White Rust Incidencementioning

confidence: 99%

Application of PGPR and Antagonist Fungi-based Biofungicide for White Rust Disease Control and Its Economyc Analysis in Chrysanthemum Production

Hanudin¹,

Budiarto²,

Marwoto³

2017

Agrivita.J.Agr.Sci

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“…Bacillus and Pseudomonas were the two main genera we found, with Pseudomonas being better represented in group G3B and Bacillus in group G1. In general, all the genera identified include at least one species that has been reported in other studies as s plant growth promoter [53][54][55][56][57][58][59][60].…”

Section: Plos Onementioning

confidence: 86%

Characterization of plant growth-promoting bacteria associated with avocado trees (Persea americana Miller) and their potential use in the biocontrol of Scirtothrips perseae (avocado thrips)

et al. 2020

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Plants interact with a great variety of microorganisms that inhabit the rhizosphere or the epiphytic and endophytic phyllosphere and that play critical roles in plant growth as well as the biocontrol of phytopathogens and insect pests. Avocado fruit damage caused by the thrips species Scirtothrips perseae leads to economic losses of 12-51% in many countries. In this study, a screening of bacteria associated with the rhizosphere or endophytic phyllosphere of avocado roots was performed to identify bacterial isolates with plant growth-promoting activity in vitro assays with Arabidopsis seedlings and to assess the biocontrol activity of the isolates against Scirtothrips perseae. The isolates with beneficial, pathogenic and/or neutral effects on Arabidopsis seedlings were identified. The plant growth-promoting bacteria were clustered in two different groups (G1 and G3B) based on their effects on root architecture and auxin responses, particularly bacteria of the Pseudomonas genus (MRf4-2, MRf4-4 and TRf2-7) and one Serratia sp. (TS3-6). Twenty strains were selected based on their plant growth promotion characteristics to evaluate their potential as thrips biocontrol agents. Analyzing the biocontrol activity of S. perseae, it was identified that Chryseobacterium sp. shows an entomopathogenic effect on avocado thrips survival. Through the metabolic profiling of compounds produced by bacteria with plant growth promotion activity, bioactive cyclodipeptides (CDPs) that could be responsible for the plant growth-promoting activity in Arabidopsis were identified in Pseudomonas, Serratia and Stenotrophomonas. This study unravels the diversity of bacteria from the avocado rhizosphere and highlights the potential of a unique isolate to achieve the biocontrol of S. perseae.

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“…Three Mycobacerium spp.-Etri N1, Etri 09, and Etri 10-had 100% consensus rates, and three Pseudomonas spp.-Tric N1, Tric N3 and Tric 06-also had 100% consensus rate, indicating the robustness of the tree. plant-promoting ability [37,38], and P. granadensis was reported to be isolated from 15 pharmaceutical applied soil [39]. From previous research, several strains from the Bacillus and…”

Section: Endophytes' Isolation With Application Of Fungicidesmentioning

confidence: 99%

“…and Pseudomonas spp., including B. fortis and B. marisflavi, P. baetica, P. plecoglossicida, and P. granadensis. Among them, P. plecoglossicida was reported to be equipped with bioremediation potential and plant-promoting ability [37,38], and P. granadensis was reported to be isolated from pharmaceutical applied soil [39]. From previous research, several strains from the Bacillus and Pseudomonas genera were also found to use insecticide phorate and thiamethoxam as sole carbon source at the same time [40].…”

mentioning

confidence: 99%

Screening of Rice Endophytic Biofertilizers with Fungicide Tolerance and Plant Growth-Promoting Characteristics

et al. 2019

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The application of pesticides is unavoidable in conventional agricultural practice. To develop effective biofertilizers, bacterial strains with both pesticide tolerance and plant growth-promoting (PGP) traits were isolated for further testing. Seedlings of rice (Oryza sativa) were planted in soil with 1, 5, or 10 times the recommended rates of the fungicides etridiazole, metalaxyl, and tricyclazole. Endophytic bacteria were isolated from roots of rice seedlings. The bacterial 16S rDNA sequences and related PGP characteristics including potential nitrogen fixation, phosphorus-solubilizing and indole acetic acid (IAA) production ability were further examined. In all, 17 different strains were obtained from rice seedling roots; five strains with both nitrogen fixation potential and IAA production ability included Rhizobium larrymoorei E2, Bacillus aryabhattai E7, Bacillus aryabhattai MN1, Pseudomonas granadensis T6, and Bacillus fortis T9. Except for T9, all strains could tolerate two or more fungicides. We inoculated rice roots with the endophytic bacteria and all conferred rice growth-promoting ability. Bacillus aryabhattai MN1 was further tested and showed high tryptophan dose-dependent IAA production ability, tolerance towards etridiazole and metalaxyl application and should be considered a potential bacterial biofertilizer.

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Isolation and characterization of three new PGPR and their effects on the growth of Arabidopsis and Datura plants

Cited by 49 publications

References 35 publications

Application of PGPR and Antagonist Fungi-based Biofungicide for White Rust Disease Control and Its Economyc Analysis in Chrysanthemum Production

Application of PGPR and Antagonist Fungi-based Biofungicide for White Rust Disease Control and Its Economyc Analysis in Chrysanthemum Production

Characterization of plant growth-promoting bacteria associated with avocado trees (Persea americana Miller) and their potential use in the biocontrol of Scirtothrips perseae (avocado thrips)

Screening of Rice Endophytic Biofertilizers with Fungicide Tolerance and Plant Growth-Promoting Characteristics

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