Production of Indole Acetic Acid and Plant Growth Promotion by Rhizobacteria from a Less Studied Marine Ecosystem

Anbalagan, G.; Kumar, Vivek; Abideen, Jainul; Swarnakala, Swarnakala; Venkatramani, M.; Hussain, Adil

doi:10.13005/bbra/1408

Cited by 3 publications

(4 citation statements)

References 14 publications

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“…Rhizospheric soil of Calystegia soldanella (beach morning glory) and Elymus mollis (wild rye) found in South Korean dunes have been found to be enriched with 27 different established genera of bacteria [27]. A total of 47 rhizobacterial strains (including 22 fluorescent Pseudomonads ) could be isolated from 5 rhizosphere soil samples collected from the coastal sand dunes in Uthandi Beach, Chennai [7]. Abundant population of siderophores producing bacteria belonging to Bacillus spp., Streptomyces spp., Pseudomonas spp., Renibacterium spp., Corynebacterium , Azotobacter spp., Kurthia spp., Brochothrix spp., etc.…”

Section: Microorganisms Associated With Root and Rhizospherementioning

confidence: 99%

“…The environmental conditions prevailing in the sand dune ecosystems make the microorganisms and other living forms more competent and may have good potential of bioactivity. So bioprospecting of coastal sand dune microorganisms is a worthy one [7]. The proven ability to produce numerous secondary metabolites by various groups of microorganisms inhabiting coastal sand dunes has already shown the path to be exploited for use in agriculture, industries, and pharmaceuticals.…”

Section: Beneficial Biopotential Of Sand Dune Microbesmentioning

confidence: 99%

“…Diverse group of Plant Growth Promoting Rhizobacteria (PGPR) has been isolated from sand dunes in Chennai coast which were found to produce extracellular plant growth hormone indole acetic acid (IAA). These bacteria have demonstrated for their remarkable ability to increase seedling length and seedling weight of wheat, green gram, mustard, black gram, and kidney bean through seedling growth chamber studies [7, 8]. Rhizobia isolated from wild legumes growing in sand dunes of West coast India not only increased nodulation and nitrogen fixation, but also induced higher root and shoot mass when inoculated in cowpea ( Vigna unguiculata ), green gram ( Vigna radiata ), black gram ( Vigna mungo ), and horse gram ( Macrotyloma uniflorum ) [9].…”

Section: Beneficial Biopotential Of Sand Dune Microbesmentioning

confidence: 99%

“…However, due to unusual circumstances, this environment harbours atypical floral, faunal, and microbial diversity [6]. Coastal dunes have been reported to contain a larger diversity of agriculturally, industrially, and pharmaceutically important bacteria, fungi, actinomycetes, and other groups of microbes [7–15]. Despite these facts, unlike desert dunes, coastal dunes have generally been neglected and attracted little attention from investigators for study on their biodiversity.…”

Section: Introductionmentioning

confidence: 99%

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Potential of Microbial Diversity of Coastal Sand Dunes: Need for Exploration in Odisha Coast of India

Nayak

Behera

Dash

2019

The Scientific World Journal

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Coastal sand dunes are hips and strips formed by sand particles which are eroded and ground rock, derived from terrestrial and oceanic sources. This is considered as a specialized ecosystem characterized by conditions which are hostile for life forms like high salt, low moisture, and low organic matter content. However, dunes are also inhabited by diverse groups of flora, fauna, and microorganisms specifically adapted to these situations. Microbial groups like fungi, bacteria, and actinobacteria are quite abundant in the rhizosphere, phyllosphere, and inside plants which are very much essential for the integration of dunes. Microorganisms in this ecosystem have been found to produce a number of bioactive metabolites which are of great importance to agriculture and industries. Many species of arbuscular mycorrhizal fungi and Rhizobia associated with the roots of dune flora are prolific producers of plant growth promoting biochemicals like indole acetic acid. In addition to that bacteria belonging to Pseudomonas sp., Gammaproteobacteria have been found to have antagonistic activity towards plant pathogens like Rhizoctonia solani, Pythium ultimum, Fusarium oxysporum, and Botrytis cinerea. Many neutrophilic and alkaliphilic eubacterial species, endophytic fungi from dunes have proved their ability for the production of extracellular enzymes like cellulase, pectinase, amylase, protease, tannase, chitinase, etc., which are of great importance to various industries. In this context, it is relevant to observe that the state of Odisha in India has a 480km long coast having numerous sand dunes. These dunes are rich in floral and faunal diversity. However, a comprehensive study is yet to be taken up to explore the microbial diversity and their bioactive potential in this region. The current review sheds light on the enormous potential of sand dune microorganisms in the coast and surfaced the idea and need for such exploration in the state of Odisha, India.

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Section: Microorganisms Associated With Root and Rhizospherementioning

confidence: 99%

Section: Beneficial Biopotential Of Sand Dune Microbesmentioning

confidence: 99%

Section: Beneficial Biopotential Of Sand Dune Microbesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Potential of Microbial Diversity of Coastal Sand Dunes: Need for Exploration in Odisha Coast of India

Nayak

Behera

Dash

2019

The Scientific World Journal

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Plant-Microbial Symbioses in Coastal Systems: Their Ecological Importance and Role in Coastal Restoration

Farrer

Bael

Clay

et al. 2022

Estuaries and Coasts

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Coastal systems are immensely valuable to humans. They contain unique ecosystems that are biodiversity reservoirs and provide key ecosystem services as well as a wealth of cultural heritage. Despite their importance to humans, many coastal systems are experiencing degradation that threatens their integrity and provisioning of services. While much is known about the plant communities and associated wildlife in coastal areas, the importance of microorganisms represents a large knowledge gap. Here we review the ecology of plant-microbial symbioses in coastal systems, including mycorrhizae, nitrogen fixers, endophytes, rhizosphere microbes, and pathogens. We focus on four common coastal communities: sand dunes, marshes, mangroves, and forests/shrublands. We also assess recent research and the potential for using microbes in coastal restoration efforts to mitigate anthropogenic impacts. We find that microbial symbionts are largely responsible for the health of plants constituting the foundation of coastal communities by affecting plant establishment, growth, competitive ability, and stress tolerance, as well as modulating biogeochemical cycling in these stressful coastal systems. Current use of microbial symbionts to augment restoration of stressful and degraded coastal systems is still very much in its infancy; however, it holds great promise for increasing restoration success on the coast. Much research is still needed to test and develop microbial inocula for facilitating restoration of different coastal systems. This is an excellent opportunity for collaboration between restoration practitioners and microbial ecologists to work toward a common goal of enhancing resilience of our coastal ecosystems at a time when these systems are vulnerable to an increasing number of threats.

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Plant Growth Promotion of Vigna unguiculata in Arid Sandy Soil Using Bacterial Species from Coastal Sand Dune

Shet

Garg

2022

Agric Res

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Production of Indole Acetic Acid and Plant Growth Promotion by Rhizobacteria from a Less Studied Marine Ecosystem

Cited by 3 publications

References 14 publications

Potential of Microbial Diversity of Coastal Sand Dunes: Need for Exploration in Odisha Coast of India

Potential of Microbial Diversity of Coastal Sand Dunes: Need for Exploration in Odisha Coast of India

Plant-Microbial Symbioses in Coastal Systems: Their Ecological Importance and Role in Coastal Restoration

Plant Growth Promotion of Vigna unguiculata in Arid Sandy Soil Using Bacterial Species from Coastal Sand Dune

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