Isolation, plant growth-promoting traits, antagonistic effects on clinical and plant pathogenic organisms and identification of actinomycetes from olive rhizosphere

Dede, Alper; Güven, Kıymet; Şahi̇n, Nevzat

doi:10.1016/j.micpath.2020.104134

Cited by 25 publications

(9 citation statements)

References 49 publications

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“…Similarly, several workers across the globe isolated the numerous potential plant health promoting and antagonistic microbes like Azotobacter spp., Bacillus spp., Klebsiella spp., Pseudomonas spp., Streptomyces spp., etc. from different types of plants 13,20,22,48,49 . Table 2.…”

Section: Discussionmentioning

confidence: 99%

Effect of silver nanoparticles and Bacillus cereus LPR2 on the growth of Zea mays

Kumar

Pahal

Gupta³

et al. 2020

Sci Rep

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The effect of Plant Growth Promoting Rhizobacteria (Bacillus sp.) and silver nanoparticles on Zea mays was evaluated. The silver nanoparticles were synthesized from Tagetes erecta (Marigold) leaf and flower extracts, whereas PGPR isolated from spinach rhizosphere. The silver nanoparticles (AgNPs) were purified using ultra centrifugation and were characterized using UV–Vis spectroscopy at gradient wavelength and also by High Resolution Transmission Electron microscopy (HRTEM). The average particles size of AgNPs was recorded approximately 60 nm. Almost all potential isolates were able to produce Indole Acetic Acid (IAA), ammonia and Hydrogen cyanide (HCN), solubilized tricalcium phosphate and inhibited the growth of Macrophomina phaseolina in vitro but the isolate LPR2 was found the best among all. On the basis of 16S rRNA gene sequence, the isolate LPR2 was characterized as Bacillus cereus LPR2. The maize seeds bacterized with LPR2 and AgNPs individually showed a significant increase in germination (87.5%) followed by LPR2 + AgNPs (75%). But the maximum growth of root and shoot of maize plant was observed in seeds coated with LPR2 followed by AgNPs and a combination of both. Bacillus cereus LPR2 and silver nanoparticles enhanced the plant growth and LPR2 strongly inhibited the growth of deleterious fungal pathogen. Therefore, LPR2 and AgNPs could be utilized as bioinoculant and growth stimulator, respectively for maize.

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Section: Discussionmentioning

confidence: 99%

Effect of silver nanoparticles and Bacillus cereus LPR2 on the growth of Zea mays

Kumar

Pahal

Gupta³

et al. 2020

Sci Rep

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“…Actinomycetes are one of the important components of soil microorganisms, and they are widely known for producing diverse antibacterial and antitumor active substances. In recent years, it has been reported that Streptomyces strains isolated from rhizosphere soil of chickpea, Humulus lupulus and olive plants, which had multiple growth-promoting properties of producing IAA, secreting siderophores, dissolving phosphate, fixing nitrogen, and inhibiting pathogens (Sreevidya et al 2016;Özdemir et al 2019;Dede et al 2020), could promote the growth of tomatoes, eucalyptus and wheat were isolated from leaf, stem, and root samples of 15 tea cultivars, the dominant bacteria was Streptomyces, and IAA production and 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase activities were recorded in 93.5% and 21.7% of all isolates respectively, the results indicated that endophytic actinomycetes from tea plants also had the potential to promote plant growth (Shan et al 2018). However, rare actinobacteria containing growth-promoting properties has seldom been reported (Bundale et al 2019).…”

Section: Discussionmentioning

confidence: 99%

Identification of a Phosphorus-Solubilizing Tsukamurella Tyrosinosolvens Strain and its Effect on the Bacterial Diversity of the Rhizosphere Soil of Peanuts Growth-Promoting

Han

Zhang

2021

Preprint

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Phosphate Solubilizing Microorganisms widely exist in plant rhizosphere soil, but report about the P solubilization and multiple growth-promoting properties of rare actinomycetes are scarce. In this paper, a phosphate solubilizing Tsukamurella tyrosinosolvens P9 strain was isolated from the rhizosphere soil of tea plants. Phosphorus-dissolving abilities of this strain were different under different carbon and nitrogen sources, the soluble phosphorus content was 442.41 mg/L with glucose and potassium nitrate as nutrient sources. The secretion of various organic acids, such as lactic acid, maleic acid, oxalic acid, etc, was the main mechanism for P solubilization and pH value in culture was very significant negative correlation with soluble P content. In addition, this strain had multiple growth-promoting characteristics with 37.26 μg/mL of IAA and 72.01% of siderophore relative content. Under pot experiments, P9 strain improved obviously the growth of peanut seedlings. The bacterial communities of peanut rhizoshpere soil were assessed after inoculated with P9 strain. It showed that there was no significant difference in alpha-diversity indices between the inoculation and control groups, but the P9 treatment group changed the composition of bacterial communities, which increased the relative abundance of beneficial and functional microbes, which relative abundances of Chitinophagaceae and Beijerinckiaceae at the family level, and of Flavihumibacter , Ramlibacter and Microvirga at the genus level, were all siginificant increased. Specially, Tsukamurella tyrosinosolvens were only detected in the rhizosphere of the inoculated group. This study not only founded growth-promoting properties of T . tyrosinosolvens P9 strain and its possible phosphate solublizing mechanism, but also expected to afford an excellent strain resource in biological fertilizers.

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“…About 500 g of the samples were collected and placed in a plastic bag and then stored in a cool box. Actinomycetes from mangrove sediment were isolated based on the method by Dede et al (2020) and Kavitha and Vimala (2020). Samples were serially diluted.…”

Section: Sampling and Actinomycetes Isolationmentioning

confidence: 99%

“…Actinomycetes are the most widely distributed in mangrove sediments (Suresh et al 2020). Actinomycetes exhibit antagonistic properties (Tistechok et al 2019;Dede et al 2020;Talpur et al 2020). They can survive in a dynamic mangrove environment, such as changes in salinity, oxygen, temperature, pH, etc.…”

Section: Introductionmentioning

confidence: 99%

Short Communication: Antibacterial potential of Actinomycetes isolated from mangrove sediment in Tanjung Api-Api, South Sumatra, Indonesia

2020

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Abstract. Rozirwan, Muda HI, Ulqodry TZ. 2020. Short Communication: Antibacterial potential of Actinomycetes isolated from mangrove sediment in Tanjung Api-Api, South Sumatra, Indonesia. Biodiversitas 21: 5723-5728. Actinomycetes play an important role in the decomposition process of organic matter in mangrove sediments. This study was carried out to identify and evaluate the antagonistic activity of actinomycetes from mangrove sediment against Escherichia coli and Staphylococcus aureus. Identification of actinomycetes was performed based on morphological dan physiological characters. The antagonistic test was carried out against Escherichia coli and Staphylococcus aureus. A total of ten isolates had been successfully isolated and grouped into eight genera, including; Oerskovia H1, Micrococcus H2, Nocardia H3, Sporichtya H5, Corynebacterium H6, Jonesia H7, Actinomyces H10, and Streptomyces H8, H11, H12. Actinomycetes from mangrove sediment were gram-positive bacillus. The shape of the colony varied from circular to filamentous and irregular, with medium and large colony sizes. The colony appears white or yellow. The surface is convex and flat, aerobes and facultative anaerobes; capable of fermenting glucose. Five isolates have very strong growth inhibition activity against E. coli: Nocardia H3 (27.81mm ± 1.39), Actinomycetes H10 (27.75mm ± 2.48), Corynebacterium H6 (27.69mm ± 2.39), Micrococcus H2 (18.55mm ± 2.44), and Streptomyces H8 (17.92mm ± 2.70) while Streptomyces H8 (24.83mm ± 2.08), and Actinomycetes H10 (16.06mm ± 2.49) were active against S. aureus.

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Isolation, plant growth-promoting traits, antagonistic effects on clinical and plant pathogenic organisms and identification of actinomycetes from olive rhizosphere

Cited by 25 publications

References 49 publications

Effect of silver nanoparticles and Bacillus cereus LPR2 on the growth of Zea mays

Effect of silver nanoparticles and Bacillus cereus LPR2 on the growth of Zea mays

Identification of a Phosphorus-Solubilizing Tsukamurella Tyrosinosolvens Strain and its Effect on the Bacterial Diversity of the Rhizosphere Soil of Peanuts Growth-Promoting

Short Communication: Antibacterial potential of Actinomycetes isolated from mangrove sediment in Tanjung Api-Api, South Sumatra, Indonesia

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Isolation, plant growth-promoting traits, antagonistic effects on clinical and plant pathogenic organisms and identification of actinomycetes from olive rhizosphere

Cited by 25 publications

References 49 publications

Effect of silver nanoparticles and Bacillus cereus LPR2 on the growth of Zea mays

Effect of silver nanoparticles and Bacillus cereus LPR2 on the growth of Zea mays

Identification&nbsp;of a Phosphorus-Solubilizing Tsukamurella Tyrosinosolvens&nbsp;Strain and its Effect on the Bacterial Diversity of the Rhizosphere Soil of Peanuts Growth-Promoting

Short Communication: Antibacterial potential of Actinomycetes isolated from mangrove sediment in Tanjung Api-Api, South Sumatra, Indonesia

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Identification of a Phosphorus-Solubilizing Tsukamurella Tyrosinosolvens Strain and its Effect on the Bacterial Diversity of the Rhizosphere Soil of Peanuts Growth-Promoting