Mechanism by whichBacillus-Derived 2-Aminobenzoic acid inhibits the growth ofArabidopsis thaliana Roots

Hoang, Lam; Song, Kyung Sik; Rhee, In Koo; Kim, Jeong Hoe; Lee, Sangman

doi:10.1007/bf03030692

Cited by 7 publications

(5 citation statements)

References 10 publications

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“…Different responses to folic acid derivatives have been reported in different plant species (Hoang et al, 2007;Yang et al, 2011). In arabidopsis, MABA and PABA did not affect root growth, whereas OABA significantly inhibited root growth in a dose-dependent manner (Hoang et al, 2007). Under similar in vitro conditions, 1 mM MABA was sufficient to inhibit the growth of tobacco seedlings while 18 mM OABA and PABA were ineffective (Yang et al, 2011).…”

Section: Discussionmentioning

confidence: 98%

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The folate precursor para-aminobenzoic acid elicits induced resistance against Cucumber mosaic virus and Xanthomonas axonopodis

2013

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

The folate precursor para-aminobenzoic acid elicits induced resistance against Cucumber mosaic virus and Xanthomonas axonopodis

2013

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“…5). In another viewpoint, 2-AB is known to be a growth inhibitor of roots in Arabidopsis thaliana (Hoang et al 2007), in which 2-AB is converted to indole acetic acid. This phenomenon gives rise to increased ethylene content within plant, which would express ethylene-dependent genes to induce systemic resistance to plant pathogens Spencer et al 2003).…”

Section: Discussionmentioning

confidence: 99%

2-Aminobenzoic acid of Bacillus sp. BS107 as an ISR determinant against Pectobacterium carotovorum subsp. carotovotrum SCC1 in tobacco

et al. 2010

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Root drench-treatment of tobacco seedlings with Bacillus sp. BS107 (BS107) suppressed disease development caused by the pathogen Pectobacterium carotovorum subsp. carotovotrum SCC1 (SCC1). A determinant of BS107 involved in induced systemic resistance (ISR) against SCC1 was isolated from cell-free culture. ISR bioassay-guided isolation was involved in determining active fractions during chromatography. Mass spectrometry and NMR analyses of the isolated metabolite identified 2-aminobenzoic acid (2-AB) as a main ISR determinant. 2-AB at 2.3 mM suppressed significantly disease development and exhibited no direct contact inhibition of pathogen. Reverse Transcriptase (RT)-PCR analyses of tobacco leaves revealed up-regulation of the induced resistance marker genes such as PR1a, PR1c, PR2 and PR4 by application of 2-AB on the root. Among aminobenzoic acids tested, 2-and 4-aminobenzoic acids showed ISR activity against soft-rot pathogen, but 3-aminobenzoic acid did not. This is the first report that 2-AB exhibits the ISR against SCC1in tobacco. BS107 can play a role in promoting plant defences by secretion of bacterial determinants including 2-AB for elicitation of ISR.

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“…Our results are also in agreement with previous findings that increasing concentrations of L-tryptophan also enhanced IAA production by bacteria (Ahmad et al 2008 followed by increase in lateral root number indicated the conversion of L-tryptophan into IAA. Hoang et al (2007) reported that root growth inhibition by B. cereus is mainly mediated by in vitro production of increased level of IAA. It is generally agreed that auxin production is the major factor responsible for the stimulation of plant growth by bacteria.…”

Section: Discussionmentioning

confidence: 99%

Quantification of indole-3-acetic acid from plant associated Bacillus spp. and their phytostimulatory effect on Vigna radiata (L.)

Ali

Sabri

Ljung

et al. 2008

World J Microbiol Biotechnol

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Sixteen Bacillus strains isolated from rhizosphere, histoplane and phyllosphere of different plant species were identified by 16S rDNA gene sequencing and evaluated for in vitro auxin production as well as growth stimulation of Vigna radiata (L.) Wilczek. Auxin production by Bacillus spp. in L-broth medium supplemented with 1,000 lg ml -1 L-tryptophan ranges from 0.60 to 3.0 lg IAA ml -1 as revealed by gas chromatography and mass spectrometric (GC-MS) analysis. Rhizospheric isolates exhibit relatively more IAA synthesis than histoplane and phyllosphere isolates. Plant microbe interaction experiments conducted under gnotobiotic conditions recorded 55.55, 46.46 and 46.20% increase in shoot length with Bacillus megaterium MiR-4, B. pumilus NpR-1 and B. subtilis TpP-1, respectively, over control. Bacillus inoculations also increased shoot fresh weight with B. megaterium MiR-4 (60.94%) and B. pumilus NpR-1 (37.76%). Highly significant positive correlation between auxin production analyzed by GC-MS and shoot length (r = 0.687**, P = 0.01) and shoot fresh weight (r = 0.703**, P = 0.01) was noted under gnotobiotic conditions. Similarly, significant correlation was also found between auxin production by Bacillus spp.(GC-MS analysis) and different growth parameters such as shoot length (r = 0.495*, P = 0.05), number of pods (r = 0.498*, P = 0.05) and grain weight (r = 0.537*, P = 0.05) at full maturity under natural wire house conditions. Results showed that auxin production potential of plant associated Bacillus spp. can be effectively exploited to enhance the growth and yield of V. radiata.

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Mechanism by whichBacillus-Derived 2-Aminobenzoic acid inhibits the growth ofArabidopsis thaliana Roots

Cited by 7 publications

References 10 publications

The folate precursor para-aminobenzoic acid elicits induced resistance against Cucumber mosaic virus and Xanthomonas axonopodis

The folate precursor para-aminobenzoic acid elicits induced resistance against Cucumber mosaic virus and Xanthomonas axonopodis

2-Aminobenzoic acid of Bacillus sp. BS107 as an ISR determinant against Pectobacterium carotovorum subsp. carotovotrum SCC1 in tobacco

Quantification of indole-3-acetic acid from plant associated Bacillus spp. and their phytostimulatory effect on Vigna radiata (L.)

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