Continuous production of indole-3-acetic acid by immobilized cells of Arthrobacter agilis

Özdal, Murat; Ozdal, Ozlem Gur; Sezen, Alev; Algur, Ömer Faruk; Kurbanoğlu, Esabı Başaran

doi:10.1007/s13205-017-0605-0

Cited by 35 publications

(23 citation statements)

References 28 publications

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“…IAA application promotes both root and shoot development and elongation, directs and controls cell division, expansion, differentiation, regulates enzyme activity and gene expression [2,3]. Thus, microbes that produce IAA could have value as biofertilizers [4]. Such studies are in progress to develop IAA-producing microbes to promote plant growth and protect sustainable agriculture [3].…”

Section: Introductionmentioning

confidence: 99%

Isolation and Properties of Enterobacter sp. LX3 Capable of Producing Indoleacetic Acid

et al. 2018

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Indoleacetic acid (IAA) can act as a phytohormone to modulate plant growth and development, thus persistent search for IAA-producing microbes is underway for a potential application in promoting plant growth. In this paper, an IAA-producing bacterium was obtained from maize rhizosphere in biochar-amending field. This strain is a Gram-negative and facultative anaerobic rod. Phenotypic examination and 16S rRNA gene sequencing suggest that this strain is a new strain of the Enterobacter species. We designated this strain LX3. LX3 produced up to 200 mg/L of IAA in nutrient broth and promoted barley development and increased plant chlorophyll level. This suggests that LX3 has potential as a biofertilizer.

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Section: Introductionmentioning

confidence: 99%

Isolation and Properties of Enterobacter sp. LX3 Capable of Producing Indoleacetic Acid

et al. 2018

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“…The synthesized chemicals were dissolved in dimethyl sulfoxide (DMSO, 80%) at a final concentration of 10 mg/mL. Antimicrobial activities of the synthesized chemicals were tested by disc diffusion method against Bacillus cereus BC-On [36], Arthrobacter agilis A17 [37], Pseudomonas aeruginosa OG1 [38], Xanthomonas campestris MO-03 [39], Candida albicans, Klebsiella oxytoca (clinical isolates), and Helicobacter pylori [40] (ATCC 43629). For this purpose, a suspension of the tested microorganism (0.1 mL of 10 8 cells per mL) was spread on the agar plates.…”

Section: Antimicrobial Activitymentioning

confidence: 99%

Syntheses and antibacterial activities of 4 linear nonphenolic diarylheptanoids

et al. 2020

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Four linear nonphenolic diarylheptanoids were synthesized and their antibacterial activities were studied. (S)-2-Me-CBS-catalysed reduction of alnustone with BH 3 .SMe 2 gave (R) (-)(4 E ,6 E)-1,7-diphenylhepta-4,6-dien-3-ol, a natural product. Reduction of alnustone with Na in t-BuOH at-15°C under NH 3 atm gave (E)-1,7-diphenylhept-5en-3-one as a Birch-type reduction product. t-BuOK catalysed condensation of benzalacetone with propionyl chloride gave (4 Z ,6 E)-5-hydroxy-1,7-diphenylhepta-4,6-dien-3-one, a natural product. (1 E ,4 Z ,6 E)-5-Hydroxy-4-phenethyl-1,7-diphenylhepta-1,4,6-trien-3-one, a curcuminoid, was synthesized starting from pentan-2,4-dione in 3 steps. The synthesized chemical compounds were applied against 2 gram-positive bacteria (Bacillus cereus and Arthrobacter agilis), 4 gram-negative bacteria (Pseudomonas aeruginosa, Xanthomonas campestris, Klebsiella oxytoca, and Helicobacter pylori), and 1 yeast (Candida albicans) by the disc diffusion method. All of the synthesized compound exhibited different degrees of antimicrobial activity at concentrations between 20-100 µg/disc against the test organisms.

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“…4). Different workers have optimized IAA production by different carbon sources as well as their combinations, eg., mannitol in B. subtilis WR-W2 [33], Arthrobacter agilis [6], sucrose in Acetobacter diazotrophicus L1 [35], mannitol and galactose [48] and mannitol and L-glutamic acid [49].…”

Section: ) Effect Of Carbon Sourcesmentioning

confidence: 99%

“…IAA acts as an important signal molecule in the regulation of plant development by initiation, cell division and cell enlargement [4]. The amino acid L-tryptophan, serves as a physiological precursor for biosynthesis of auxins in microbes and plants [5], [6]. Bacteria synthesize auxins to perturb host physiological processes for their own benefit by altering the auxin pool, depending upon the amount of IAA produced.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Indole-3-Acetic Acid Production by Diazotrophic B. subtilis DR2 (KP455653), Isolated from Rhizosphere of Eragrostis cynosuroides

Kumari¹,

Prabha²,

Singh³

et al. 2018

IJPMBS

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Diazotrophic rhizobacteria, trigger and enhance plant growth as well as yield through various mechanisms, so their use can reduce the application frequency of chemical fertilizers. Indole-3-acetic acid (IAA), a most common natural auxin influences several physiological processes of the plant's health. The present study is aimed to optimize the conditions for IAA production, along with assay for plant growth promoting traits of Bacillus subtilis DR2 (KP455653), which is a diazotrophic Gram positive, rod bacterium, isolated from rhizosphere of road side weed, Eragrostis cynosuroides from Danapur, Patna, Bihar, India. The screening for IAA production was done in JNFbˉ broth with tryptophan (1 g.l-1) and without tryptophan at pH 5.8, 30±2 °C temperature and 48 h incubation. 137.81 µg.ml-1 and 100.26 µg.ml-1 IAA was produced in Trp + and Trpmedia, respectively. Under various optimized conditions, maximum IAA was produced at 96 h incubation (137.81 µg.ml-1), 35 °C temperature (141.92 µg.ml-1), pH 7 (158.79 µg.ml-1), mannitol as carbon (160.85 µg.ml-1) and ammonium sulfate as nitrogen (162.93 µg.ml-1) sources with tryptophan at final concentration of 1.2 µg.ml-1 (168.09 µg.ml-1), which enhanced the production by 1.2 fold. The findings suggest that B. subtilis DR2 is a potent organism to be used as biofertilizer. 

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Continuous production of indole-3-acetic acid by immobilized cells of Arthrobacter agilis

Cited by 35 publications

References 28 publications

Isolation and Properties of Enterobacter sp. LX3 Capable of Producing Indoleacetic Acid

Isolation and Properties of Enterobacter sp. LX3 Capable of Producing Indoleacetic Acid

Syntheses and antibacterial activities of 4 linear nonphenolic diarylheptanoids

Optimization of Indole-3-Acetic Acid Production by Diazotrophic B. subtilis DR2 (KP455653), Isolated from Rhizosphere of Eragrostis cynosuroides

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