Mining alfalfa (Medicago sativa L.) nodules for salinity tolerant non-rhizobial bacteria to improve growth of alfalfa under salinity stress

Noori, Fatemeh; Etesami, Hassan; Zarini, Hamid Najafi; Khoshkholghsima, Nayer Azam; Salekdeh, Ghasem Hosseini; Alishahi, Farshad

doi:10.1016/j.ecoenv.2018.06.092

Cited by 81 publications

(36 citation statements)

References 48 publications

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“…Our results were similar to Noori et al (2018)'s results. Noori et al (2018) showed that PGPB significantly increased alfalfa plant growth indices in the absence of rhizobial strains. Moreover, PGPB could even provide plant nitrogen in the absence of rhizobial strains and nitrogen in the soil.…”

Section: Discussionmentioning

confidence: 96%

“…One biological method for decreasing deleterious effects of salinity is application of plant growth-promoting bacteria (PGPB) (Bacilio et al 2004;Shrivastava and Kumar 2015;Trdan et al 2019). Alleviation of salt stress by PGPB has been reported in alfalfa (Noori et al 2018;Wang et al 2016), legume (Zahran 1999), barley (Suarez et al 2015 okra (Habib et al 2016), lettuce (Han and Lee 2005), and pepper (Del Amor and Cuadra-Crespo 2012). Recent studies emphasize on the mitigating effect of PGPB on plants growth by nutrient solubilization, nitrogen fixation, and phytohormone production mechanisms (Dodd, and Pérez-Alfocea 2012;Paul and Lade 2014).…”

Section: Introductionmentioning

confidence: 99%

“…With regard to high water need of alfalfa production among plants, and also water shortages in many areas, the need to use saline or wastewater for alfalfa irrigation increases every day. Reports show that PGPB has improving effects on alfalfa germination indices and growth aspects under salinity (Bertrand et al 2015;Ansari et al 2017;Noori et al 2018). Bertrand et al (2015) showed that combining salt-tolerant rhizobial strains with salt-tolerant alfalfa cultivars was an effective strategy to improve alfalfa productivity under salinity.…”

Section: Introductionmentioning

confidence: 99%

“…Bertrand et al (2015) showed that combining salt-tolerant rhizobial strains with salt-tolerant alfalfa cultivars was an effective strategy to improve alfalfa productivity under salinity. Noori et al (2018) showed that nodule non-rhizobial strains in alfalfa plants had PGPB abilities and could use for improving salinity tolerance as a Rhizobium bio-fertilizers in salinity conditions.…”

Section: Introductionmentioning

confidence: 99%

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Salt-tolerant plant growth-promoting bacteria enhanced salinity tolerance of salt-tolerant alfalfa (Medicago sativa L.) cultivars at high salinity

et al. 2019

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Alfalfa (Medicago sativa L.) plant growth decreases when cultivated under salinity or irrigated with salty water. Inoculation with plant growth-promoting bacteria (PGPB) is a method for mitigating the harmful effects of salinity on plants growth. To investigate salt-tolerant PGPB with salt-tolerant and salt-sensitive alfalfa cultivar interactions under salinity, some physiological and agronomical aspects were investigated. The inoculated plants of alfalfa cultivars with Hartmannibacter. diazotrophicus and Pseudomonas sp. bacteria were compared with non-inoculated plants. Plants were grown in growth room and irrigated with tap water until 6-7 weeks, and then, salinity stress imposed by irrigating with tap water (control), 10 dS m −1 and 20 dS m −1 NaCl. Salinity reduced relative water content (RWC), membrane stability index (MSI), K + , photosynthesis rate (Pn) and stomatal conductance (gs), leaf number, height, and dry weight, and increased sodium in all cultivars. Inoculation of cultivars with both PGPB mitigated the negative effects of salinity on plants growth by increasing the root length and weight, nodule number, chlorophyll pigments, RWC, MSI, Pn, and gs. Chlorophyll pigments, plant height and leaf number, Na + , K + /Na + , and nodule number improved more pronounced through inoculating with Pseudomonas sp., whereas K + , carotenoids, and RWC improved more pronounced through H. diazotrophicus under salinity. The results showed inoculation with two bacteria improved growth performance in salt-tolerant and salt-sensitive cultivars under 10 dS m −1 , but at high salinity (20 dS m −1), inoculation was successful only in salt-tolerant alfalfa cultivars.

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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Salt-tolerant plant growth-promoting bacteria enhanced salinity tolerance of salt-tolerant alfalfa (Medicago sativa L.) cultivars at high salinity

et al. 2019

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“…Nutrients, salt concentration, water availability, temperature change, and pH are the main abiotic factors that directly influence plant growth in agricultural fields (Kumar and Verma, 2018). Many researchers (Mahmood et al, 2016;Etesami and Maheshwari, 2018;Noori et al, 2018) observed and revealed the use of beneficial microorganisms in agricultural fields to combat the increase in salt tolerance in plants, which can be utilized as a substitute method for farming in susceptible salt fields. PGPR are bacteria that reside in soil near the plant roots and effectively participate in plant growth and development, and abiotic stress tolerance.…”

Section: Isolation Of Bacterial Endophytesmentioning

confidence: 99%

Assessment of plant growth-promoting stress-tolerant endophytes screened from Bougainvillea glabra for the growth of Triticum aestivum L. and Zea mays

Karnwal

2020

bta

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Globally, more than 5.2 billion hectares of farming fields are damaged through erosion, salinity, and soil deterioration. Salt stress-tolerant bacteria have plant growth-promoting (PGP) characteristics that can be used to overcome environmental stresses. Isolation and screening of salt-tolerant endophytes from Bougainvillea glabra were achieved through surface sterilization of leaves, followed by their cultivation on 0.5% NaCl-supplemented media. The performance of isolates for indole acetic acid (IAA) production, phosphate solubilization, ACC deaminase activity, ammonia production, siderophore production, and stress tolerance was determined. In the present study, 5 morphologically distinct salt-tolerant endophytic bacteria were cultured. Out of 5 isolates, 60% salt-tolerant endophytes showed phosphate solubilization, 100% IAA production, 40% ACC-deaminase activity, 100% siderophore production, 40% ammonia production and 60% HCN production. Dendrogram generated based on stress tolerance showed three clusters: clusters 1 and 2 containing two isolates and cluster 3 containing 1 isolate. Based on the highest PGP activities, BoGl17 and BoGl21 isolates were chosen and further tested for wheat and corn growth promotion. The isolates increased wheat shoot and root dry weight by 40% and 80%, and by 69% and 126% for BoGl17 and BoGl21, respectively. The bacterial isolates identified as Pseudomonas reidholzensis BoGl17 had 95.59% identity with Pseudomonas reidholzensis strain ID3, while the isolate Bacillus aerius BoGl21 had 90.96% identity with Bacillus aerius strain 24K based on phenotypic features and 16S rRNA gene sequencing results. Both isolates significantly improved plant growth as compared to uninoculated plants.

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Alleviation of Stress-Induced Ethylene-Mediated Negative Impact on Crop Plants by Bacterial ACC Deaminase: Perspectives and Applications in Stressed Agriculture Management

Etesami

Noori

Ebadi

et al. 2020

Sustainable Development and Biodiversity

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Mining alfalfa (Medicago sativa L.) nodules for salinity tolerant non-rhizobial bacteria to improve growth of alfalfa under salinity stress

Cited by 81 publications

References 48 publications

Salt-tolerant plant growth-promoting bacteria enhanced salinity tolerance of salt-tolerant alfalfa (Medicago sativa L.) cultivars at high salinity

Salt-tolerant plant growth-promoting bacteria enhanced salinity tolerance of salt-tolerant alfalfa (Medicago sativa L.) cultivars at high salinity

Assessment of plant growth-promoting stress-tolerant endophytes screened from Bougainvillea glabra for the growth of Triticum aestivum L. and Zea mays

Alleviation of Stress-Induced Ethylene-Mediated Negative Impact on Crop Plants by Bacterial ACC Deaminase: Perspectives and Applications in Stressed Agriculture Management

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