Halotolerant rhizobacteria: beneficial plant metabolites and growth enhancement of<i>Triticum aestivum</i>L. in salt-amended soils

Raheem, Asif; Ali, Basharat

doi:10.1080/03650340.2015.1036044

Cited by 27 publications

(15 citation statements)

References 46 publications

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“…Charcoal-based formulations of rhizobacteria with auxin-production ability have been shown to enhance the vegetative and yield parameters of wheat [36]. Previously, we also reported the growth and yield improvement of plants grown under different salinity and water stresses by auxin-producing rhizobacteria [9,33]. Defez et al [37] demonstrated the role of bacterial auxin in the upregulation of nitrogenase activity of inoculated rice plants.…”

Section: Discussionmentioning

confidence: 99%

“…Bacterial auxin has also been shown to alleviate the salt stress of plants grown under saline conditions. For instance, halotolerant bacteria from saline habitats stimulated plant growth by mitigating osmotic stress [9,39]. Similarly, salt-tolerant rhizobacteria exhibiting multiple plant-growth-promoting traits stimulated the growth of wheat in salt-affected soils [40].…”

Section: Discussionmentioning

confidence: 99%

“…Extreme habitats have been reported to be colonized by a variety of microorganisms that are well adapted to these environments [29][30][31]. Natural plant settings growing in these localities may harbor beneficial microbes for agricultural applications under saline conditions [9]. S. fruticosa is a halophytic plant that mainly colonizes saline habitats.…”

Section: Discussionmentioning

confidence: 99%

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Halotolerant Bacterial Diversity Associated with Suaeda fruticosa (L.) Forssk. Improved Growth of Maize under Salinity Stress

Aslam

Ali

2018

Agronomy

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Abstract:Halotolerant bacterial strains associated with the rhizosphere and phytoplane of Suaeda fruticosa (L.) Forssk. growing in saline habitats were isolated to mitigate the salinity stress of Zea mays L. 16S rRNA gene sequencing confirmed the presence of strains that belong to Gracilibacillus, Staphylococcus, Virgibacillus, Salinicoccus, Bacillus, Zhihengliuella, Brevibacterium, Oceanobacillus, Exiguobacterium, Pseudomonas, Arthrobacter, and Halomonas genera. Strains were screened for auxin production, 1-aminocyclopropane-1-carboxylate (ACC)-deaminase, and biofilm formation. Bacterial auxin production ranged from 14 to 215 µg mL −1 . Moreover, several bacterial isolates were also recorded as positive for ACC-deaminase activity, phosphate solubilization, and biofilm formation. In pot trials, bacterial strains significantly mitigated the salinity stress of Z. mays seedlings. For instance, at 200 and 400 mM NaCl, a significant increase of shoot and root length (up to onefold) was recorded for Staphylococcus jettensis F-11. At 200 mM, Zhihengliuella flava F-9 (45%) and Bacillus megaterium F-58 (42%) exhibited significant improvements for fresh weight. For dry weight, S. jettensis F-11 and S. arlettae F-71 recorded up to a threefold increase at 200 mM over the respective control. The results of this study suggest that natural plant settings of saline habitats are a good source for the isolation of beneficial salt-tolerant bacteria to grow crops under saline conditions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Halotolerant Bacterial Diversity Associated with Suaeda fruticosa (L.) Forssk. Improved Growth of Maize under Salinity Stress

Aslam

Ali

2018

Agronomy

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“…Raheem and Ali isolated rhizobacteria that were producing beneficial plant growth-promoting metabolites such as IAA and ACC-deaminase activity [138]. The isolation of indigenous microorganisms from the stress-affected soils and screening on the basis of their stress tolerance and PGP traits may be useful in the rapid selection of efficient strains that could be used as bio-inoculants for stressed crops [139,140].…”

Section: Salinitymentioning

confidence: 99%

The Role of Soil Beneficial Bacteria in Wheat Production: A Review

Çakmakçı¹,

Turan²,

Kıtır³

et al. 2017

Wheat Improvement, Management and Utilization

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Free-living plant growth-promoting rhizobacteria (PGPR) have favourable effect on plant growth, tolerance against stresses and are considered as a promising alternative to inorganic fertilizer for promoting plant growth, yield and quality. PGPR colonize at the plant root, increase germination rates, promote root growth, yield, leaf area, chlorophyll content, nitrogen content, protein content, tolerance to drought, shoot and root weight, and delayed leaf senescence. Several important bacterial characteristics, such as biological nitrogen fixation, solubilization of inorganic phosphate and mineralization of organic phosphate, nutrient uptake, 1-aminocydopropane-1-carboxylic acid (ACC) deaminase activity and production of siderophores and phytohormones, can be assessed as plant growth promotion traits. By efficient use, PGPR is expected to contribute to agronomic efficiency, chiefly by decreasing costs and environmental pollution, by eliminating harmful chemicals. This review discusses various bacteria acting as PGPR, their genetic diversity, screening strategies, working principles, applications for wheat and future aspects in terms of efficiency, mechanisms and the desirable properties. The elucidation of the diverse mechanisms will enable microorganisms developing agriculture further.

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“…Sejalan dengan penelitian Raheem & Ali (2015) yang melaporkan bahwa panjang tunas gandum yang diinokulasi P. stutzeri lebih besar dibanding kontrol. Azmat (2014) melaporkan bahwa inokulasi P. stutzeri pada benih kacang hijau menyebabkan penurunan panjang akar.…”

Section: Salmonella Bongori Sl9unclassified

Deteksi Bakteri Patogen Terbawa Benih Akor (Acacia Auriculiformis A. Cunn. Ex Benth.)

Suharti

Joko

Arwiyanto

2017

JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA

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Detection of seed-borne pathogenic bacteria of northern black wattle (Acacia auriculiformis A. Cunn. ex Benth.). Intensive research of seed-borne pathogen of A. mangium and A. crassicarpa which have been established in industrial timber estate (HTI), while plantings development of northern black wattle in Indonesia 1990 have not recent been established in the 1990s. Very limited information available on northern black wattle diseases especially seed-borne diseases. The objectives of this study were to identify seed-borne pathogenic bacteria of northern black wattle and the effects on seed germination. Methods for the isolation of bacteria were by seed soaking, seed griding, blotter test, growing-on test on paper and soil. Identification of bacteria by PCR used 63F/1387R primer. The results showed that seed-borne bacteria of northern black wattle were Paenochrobactrum sp., Ralstonia sp., Burkholderia cepacia complex, Pseudomonas stutzeri, Acinetobacter sp., Alcaligenes faecalis, Salmonella bongori, Escherichia hermannii while pathogenic bacteria cause seedling leafspot were Micrococcus luteus and Burkholderia cepacia complex. Burkholderia cepacia complex, A. faecalis, Acinetobater sp., P. stutzeri, S. bongori and Ralstonia sp. reduced seed germination and increased rotten seed, suggested that they were the pathogenic bacteria of northern black wattle seed. Ralstonia sp. significantly increased the percentage of rotten seed and decreased shoot length and root length. P. stutzeri and S. bongori significantly inhibited the root growth. Paenochrobactrum sp. and E. hermannii were assumed as pathogen with weak virulence due to seed germination, the percentage of rotten seed and vigour index were relatively similar to untreated seed.

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Halotolerant rhizobacteria: beneficial plant metabolites and growth enhancement ofTriticum aestivumL. in salt-amended soils

Cited by 27 publications

References 46 publications

Halotolerant Bacterial Diversity Associated with Suaeda fruticosa (L.) Forssk. Improved Growth of Maize under Salinity Stress

Halotolerant Bacterial Diversity Associated with Suaeda fruticosa (L.) Forssk. Improved Growth of Maize under Salinity Stress

The Role of Soil Beneficial Bacteria in Wheat Production: A Review

Deteksi Bakteri Patogen Terbawa Benih Akor (Acacia Auriculiformis A. Cunn. Ex Benth.)

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