Content of indoleacetic acid and its metabolism in root nodules ofMelilotus alba

Datta, C.; Basu, P. S.

doi:10.1007/bf02818586

Cited by 9 publications

(4 citation statements)

References 17 publications

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“…ranging from 1.0 to 1.5% [13,16]. The key role of the carbon sources in the rhizobial IAA production was also reported by Datta and Basu [8] and Ghosh and Basu [12,13]. In Table 4, the one-way ANOVA revealed significant differences in growth for different carbon sources (between carbon sources, CS: (1)7, 24 = 0.745; < 0.01) and no significant differences were observed in their interactions.…”

Section: Optimization Of Cultural Requirements For Iaa Productionsupporting

confidence: 56%

“…Phenol content was also higher in the nodules than roots ( Table 2). Similarly, the IAA content was found to be higher in nodules than root of other legumes where it was below the level of detection [8,12]. The high tryptophan pool in the nodule was utilized for synthesis of higher amount of IAA that might have helped in legume-Rhizobium symbiosis [11,13].…”

Section: Content Of Iaa Tryptophan and Phenol In Root Andmentioning

confidence: 98%

“…The IAA productions by the symbiont in nodules were investigated in some agricultural herb legumes [12][13][14], in shrubs [8,10], or in some trees [15][16][17]. The IAA production of symbiont isolated from aquatic legume plants was not reported earlier.…”

Section: Introductionmentioning

confidence: 99%

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Production and Metabolism of Indole Acetic Acid in Root Nodules and Symbiont (Rhizobium undicola) Isolated from Root Nodule of Aquatic Medicinal LegumeNeptunia oleraceaLour.

Ghosh

Maiti

2015

Journal of Botany

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Indole acetic acid is a phytohormone which plays a vital role in plant growth and development. The purpose of this study was to shed some light on the production of IAA in roots, nodules, and symbionts of an aquatic legume Neptunia oleracea and its possible role in nodular symbiosis. The symbiont (N37) was isolated from nodules of this plant and identified as Rhizobium undicola based on biochemical characteristics, 16S rDNA sequence homology, and DNA-DNA hybridization results. The root nodules were found to contain more IAA and tryptophan than root; however, no detectable amount of IAA was found in root. The IAA metabolizing enzymes IAA oxidase, IAA peroxidase (E.C.1.11.1.7), and polyphenol oxidase (E.C.1.14.18.1) were higher in root than nodule but total phenol and IAA content were reversed. The strain N37 was found to produce copious amount of IAA in YEM broth medium with tryptophan and reached its stationary phase at 20 h. An enrichment of the medium with mannitol, ammonium sulphate, B12, and 4-hydroxybenzaldehyde was found to promote the IAA production. The presence of IAA metabolizing enzymes and IAA production with PGPR traits including ACC deaminase activity of the symbionts was essential for plant microbe interaction and nodule function.

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Section: Optimization Of Cultural Requirements For Iaa Productionsupporting

confidence: 56%

Section: Content Of Iaa Tryptophan and Phenol In Root Andmentioning

confidence: 98%

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Production and Metabolism of Indole Acetic Acid in Root Nodules and Symbiont (Rhizobium undicola) Isolated from Root Nodule of Aquatic Medicinal LegumeNeptunia oleraceaLour.

Ghosh

Maiti

2015

Journal of Botany

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“…Nodules of a range of legumes, with determinate ( Chakraborty and Mandal, 2008 ; Mandal et al, 2009 ; Bargaz et al, 2013 ; Webb et al, 2013 ) or indeterminate ( Datta and Basu, 1998 ; Glyan’ko et al, 2007 ; Webb et al, 2013 ) growth morphologies have measurable PPO activity. In the indeterminate nodules of red clover, PPO activity is high and is detected in specific cells and tissues ( Webb et al, 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Polyphenol oxidase affects normal nodule development in red clover (Trifolium pratense L.)

et al. 2014

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Polyphenol oxidase (PPO) may have multiple functions in tissues depending on its cellular or tissue localization. Here we use PPO RNAi transformants of red clover (Trifolium pratense) to determine the role PPO plays in normal development of plants, and especially in N2-fixing nodules. In red clover, PPO was not essential for either growth or nodule production, or for nodule function in plants grown under optimal, N-free conditions. However, absence of PPO resulted in a more reduced environment in all tissues, as measured by redox potential, and caused subtle developmental changes in nodules. Leaves and, to a lesser extent nodules, lacking PPO tended to accumulate phenolic compounds. A comparison of nodules of two representative contrasting clones by microscopy revealed that nodules lacking PPO were morphologically and anatomically subtly altered, and that phenolics accumulated in different cells and tissues. Developing nodules lacking PPO were longer, and there were more cell layers within the squashed cell layer (SCL), but the walls of these cells were less thickened and the cells were less squashed. Within the N2-fixing zone, bacteroids appeared more granular and were less tightly packed together, and were similar to developmentally compromised bacteroids elicited by catalase mutant rhizobia reported elsewhere.

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Relationship between production of 3-indoleacetic acid and peroxidase-laccase activities depending on the culture periods inFunalia trogii (Trametes trogii)

2001

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The relationship between production of 3-indoleacetic acid (IAA) and peroxidase and laccase activity was investigated in white-rot fungus Funalia trogii (Trametes trogii). F. trogii produced IAA and peroxidase and laccase as both primary metabolite and secondary metabolite; the levels of IAA may be influenced by peroxidase and laccase. A correlation exists between the levels of IAA and peroxidase-laccase activity.

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Content of indoleacetic acid and its metabolism in root nodules ofMelilotus alba

Cited by 9 publications

References 17 publications

Production and Metabolism of Indole Acetic Acid in Root Nodules and Symbiont (Rhizobium undicola) Isolated from Root Nodule of Aquatic Medicinal LegumeNeptunia oleraceaLour.

Production and Metabolism of Indole Acetic Acid in Root Nodules and Symbiont (Rhizobium undicola) Isolated from Root Nodule of Aquatic Medicinal LegumeNeptunia oleraceaLour.

Polyphenol oxidase affects normal nodule development in red clover (Trifolium pratense L.)

Relationship between production of 3-indoleacetic acid and peroxidase-laccase activities depending on the culture periods inFunalia trogii (Trametes trogii)

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