Tolerance of potentially diazotrophic bacteria to adverse environmental conditions and plant growth-promotion in sugarcane

Lima, Danúbia Ramos Moreira de; Santos, Isaneli Batista dos; Oliveira, João Tiago Correia; Barbosa, Jesimiel Gomes; Diniz, Williane Patrícia da Silva; Farias, Andreza Raquel Barbosa de; Freire, Fernando José; Sobral, Júlia

doi:10.1080/03650340.2018.1443212

Cited by 12 publications

(4 citation statements)

References 26 publications

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“…On the other hand, the B. yuanmingense-like ESA 366 and the B. elkanii-like ESA 366 (among other isolates) were considered low tolerant both to salt and pH stresses but were remarkable to the auxin biosynthesis. This behavior is commonly observed in rhizobia and other plant growth-promoting bacteria (Brigido et al 2017;de Lima et al 2018) reinforcing the necessity for continuous surveys to obtain both stress-tolerant and plant growth-promoting rhizobia.…”

Section: Discussionmentioning

confidence: 78%

“…Rhizobia with higher tolerance to salt stress may exhibit greater symbiotic efficiency under stress conditions (Dong et al 2017). But negative correlations between growth promotion and salt stress tolerance for plant growth-promoting bacteria of non-legumes (de Lima et al 2018). Thus, the evaluation of tolerance to abiotic stresses should be carefully related to symbiotic efficiency.…”

Section: Discussionmentioning

confidence: 99%

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Molecular, Physiological, and Symbiotic Characterization of Cowpea Rhizobia from Soils Under Different Agricultural Systems in the Semiarid Region of Brazil

Sena

Nascimento

Lino

et al. 2020

J Soil Sci Plant Nutr

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The objectives of this study were to characterize the genetic diversity and evaluate the ability to tolerate stress as well as to assess the symbiotic efficiency of bacteria from cowpea nodules in agricultural soils with different uses in the semiarid region of Bahia state (Brazil). Soil samples were collected from six crop lands and one from the pristine Caatinga biome. After a trap-host experiment, the bacteria were isolated and culturally characterized. Isolates with typical characteristics of Bradyrhizobium were subjected to the nodC symbiotic gene amplification and those positive were evaluated by 16S-23S IGS-RFLP. Twenty-seven isolates belonging to different genetic clusters were selected for 16S-23S IGS sequencing. In additions, the selected bacteria were characterized biochemically and symbiotically. Among 420 characterized isolates, approximately 60% (251 isolates) displayed typical Bradyrhizobium cultural features. A total of 161, out of 251 isolates, showed positive amplification of the nodC gene fragment. The IGS-RFLP profiles analysis generated 33 groups and 27 were selected for further analysis. The fertility of the soils influenced the distribution of the isolates in the IGS-RFLP clusters. The bacteria were assigned to two genera, Bradyrhizobium and Microvirga, with 26 and 1 representative bacteria, respectively. Some isolates were able to tolerate NaCl as well as acidic and alkaline pH. In addition, isolates showed the abilities to produce biofilm under stress and to produce indole compounds, as well as efficient nodulation and nitrogen fixation. The isolates displayed great genetic, biochemical, and symbiotic variability with promising biotechnological potential.

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Section: Discussionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Molecular, Physiological, and Symbiotic Characterization of Cowpea Rhizobia from Soils Under Different Agricultural Systems in the Semiarid Region of Brazil

Sena

Nascimento

Lino

et al. 2020

J Soil Sci Plant Nutr

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“…Moreover, we also found that some dominant endophytic bacterial genera, such as Pantoea , Bacillus , Streptomyces , Lechevalieria , Pseudomonas , Nocardioides and unclassified_f__Comamonadaceae enriched in cane roots growing from TC seedlings. As previous studies had confirmed that Pantoea , Bacillus , Streptomyces , Lechevalieria , Pseudomonas , Nocardioides and unclassified_f__Comamonadaceae were all the nitrogen fixing bacteria in facilitating nutrient uptake by sugarcane [ 52 – 54 ]. Furthermore, Pantoea also had various functions in promoting plant growth, such as synthesis of plant hormones like IAA, cytokinins, abscisic acid and gibberellins, synthesis of iron carriers and solubilization of phosphatases [ 55 ].…”

Section: Discussionmentioning

confidence: 96%

Can endophytic microbial compositions in cane roots be shaped by different propagation methods

et al. 2023

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In practical production, cane stems with buds are generally used as seed for propagation. However, long-terms cane stems only easily lead to some problems such as disease sensitivity, quality loss, etc. Recently, cane seedings, which are produced by tissue culture were used in sugarcane production, but few studies on cane health related to tissue culture seedings. Therefore, to evaluate the immunity and health of sugarcanes growing from different reproduction modes, the endophytic microbial compositions in cane roots between stem and tissue culture seedlings were analyzed using high-throughput techniques. The results showed that the endophytic microbial compositions in cane roots were significant differences between stem and tissue culture seedlings. At the genus level, Pantoea, Bacillus, Streptomyces, Lechevalieria, Pseudomonas, Nocardioides, unclassified_f__Comamonadaceae enriched as the dominant endophytic bacterial genera, and Rhizoctonia, Sarocladium, Scytalidium, Wongia, Fusarium, unclassified_f__Phaeosphaer, unclassified_c__Sordariom, unclassified_f__Stachybot, Poaceascoma, Microdochium, Arnium, Echria, Mycena and Exophiala enriched as the dominant endophytic fungal genera in cane roots growing from the tissue culture seedlings. In contrast, Mycobacterium, Massilia, Ralstonia, unclassified_f__Pseudonocardiacea, norank_f__Micropepsaceae, Leptothrix and Bryobacter were the dominant endophytic bacterial genera, and unclassified_k__Fungi, unclassified_f__Marasmiaceae, Talaromyces, unclassified_c__Sordariomycetes and Trichocladium were the dominant endophytic fungal genera in cane roots growing from stem seedlings. Additionally, the numbers of bacterial and fungal operational taxonomic units (OTUs) in cane roots growing from tissue culture seedlings were significantly higher than those of stem seedlings. It indicates that not only the endophytic microbial compositions in cane roots can be shaped by different propagation methods, but also the stress resistance of sugarcanes can be improved by the tissue culture propagation method.

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“…The synthesis of phytohormones and the isolates' capacity to x nitrogen were both highlighted in this investigation. Enterobacter is one of the powerful culturable bacteria that is suggested to be utilized as biofertilizer in the rice environment due to its ability to enhance rice plant growth (Lima et al, 2018). According to the models, which suggest improvements in the growth parameters viz.…”

Section: Effect Of Biofertilizer Samples On Plant Growth Promotion (P...mentioning

confidence: 99%

Enrichment of the Waste Effluents of Handmade Paper Industry for Biofertilizer Use in Green Chili Plants

Narayana,

Rajesh,

Mishra

et al. 2024

Preprint

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Effluents pose a great concern for each and every industry including the paper mills. The effluents of papermaking industry need attention due to their dark colors and alkaline nature which on disposal may destroy the biodiversity and aesthetic value of any water body. Due to the non-woody raw materials with minimum chemicals, effluents of handmade paper industry are rich in organic matter and less toxic and less harmful compared to the conventional paper mills. Therefore, the present study was taken up with an aim to utilize effluents of handmade papermaking from cow dung as liquid biofertilizers. For this, the effluent was enriched with selected Plant Growth Promoting Rhizobacteria (PGPR) and then used to study its plant growth promoting traits with the seeds of NU1919 variety in Green chilli (Capsicum frutescens) plants using four treatments in triplicates with the Random Block Design. The results of plant growth promotion (viz. number of fruits per plant, average pedicel, average fruit length, fruit yield per plant and average plant height) were found to be best in Set D where a consortium of Azotobacter sp and Enterobacter sps was used along with un-autoclaved effluent (RL). However, average girth and average fruit weight (fresh and dry weight) were maximum in Set B where Azotobacter and Bacillus megaterium were used for modifying RL. On analysis of biochemical attributes of chilli harvest, Vitamin A was found to be maximum in the case of Set A where RL (as such) was used as a biofertilizer, whereas, Vitamin C was found to be almost equal in Set A (167.79 mg/100gm) and Set D (167.30 mg/100gm). The Set C (Bacillus + Azotobacter) showed maximum capsaicinoid content (67,793.18 SHU). Thus the handmade paper industry effluents have been found to be suitable for their biofertilizer use in cultivation of chilli (Capsicum frutescence) plants.

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Tolerance of potentially diazotrophic bacteria to adverse environmental conditions and plant growth-promotion in sugarcane

Cited by 12 publications

References 26 publications

Molecular, Physiological, and Symbiotic Characterization of Cowpea Rhizobia from Soils Under Different Agricultural Systems in the Semiarid Region of Brazil

Molecular, Physiological, and Symbiotic Characterization of Cowpea Rhizobia from Soils Under Different Agricultural Systems in the Semiarid Region of Brazil

Can endophytic microbial compositions in cane roots be shaped by different propagation methods

Enrichment of the Waste Effluents of Handmade Paper Industry for Biofertilizer Use in Green Chili Plants

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