Nonsymbiotic and Symbiotic Bacteria Efficiency for Legume Growth Under Different Stress Conditions

Turan, Metin; Kıtır, Nurgül; Elkoca, Erdal; Uras, Deniz; Ünek, Ceren; Nikerel, Emrah; Özdemir, Bahar Soğutmaz; Tarhan, Leyla; Eşítken, Ahmet; Yıldırım, Ertan; Mokhtari, Negar Ebrahim Pour; Tüfenkçi, Şefik; Karaman, Mehmet; Güneş, Adem

doi:10.1007/978-3-319-59174-2_16

Cited by 5 publications

(7 citation statements)

References 105 publications

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“…The lack of microorganisms from Fabaceae could be related to the isolation methods used. While Fabaceae plants can associate with symbiotic (the members of Rhizobiae in legumes) and free-living rhizobacteria (Pseudomonas, Bacillus, and Azospirillum in grasses and other non-legumes) (Reginato et al, 2012), most studies focus on the isolation of endophytic bacteria from legumes (Reginato et al, 2012;Turan et al, 2017;Dubey et al, 2020). Also, differences in root architecture and structure could have influenced the isolation efficiency (Vacheron et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Amelioration of Saline Stress on Chia (Salvia hispanica L.) Seedlings Inoculated With Halotolerant Plant Growth-Promoting Bacteria Isolated From Hypersaline Environments

et al. 2021

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The rhizosphere and microbiome of halotolerant plants could be crucial for alleviating salinity stress during plant growth. The aims of this work were (1) to isolate bacteria from rhizosphere and bulk soil samples from the Salar del Hombre Muerto (Catamarca, Argentina), (2) to characterize different plant growth-promoting (PGP) activities produced by these bacterial isolates, and (3) to evaluate their effect on the initial growth of chia (Salvia hispanica L.) under saline stress. A total of 667 microorganisms were isolated, using different culture media with NaCl, and their abilities for nitrogen fixation, phosphate solubilization, siderophores production, and indole-3-acetic acid production were evaluated. Thirteen strains were selected for showing all the tested PGP activities; they belonged to the genera Kushneria, Halomonass, Pseudomonas, Planomicrobium, and Pseudarthrobacter. The strains Kushneria sp. and Halomonas sp. showed the highest salinity tolerance (from 50 to 2,000 mM NaCl) and biomass and biofilm production. Chia seeds were treated with six of the first 13 selected strains to evaluate their plant growth-promoting effect under saline stress (without and with 50 and 100 mM NaCl). Halomonas sp. 3R.12 and Kushneria sp. T3.7 produced heavier seedlings with a balanced shoot/root length ratio, while Pseudomonas sp. AN23 showed the best effect upon chia seedlings, with a morphological response similar to non-stressed seedlings. On the other hand, seedlings displayed no responses when inoculated with Planomicrobium sp. 3S.31 and Pseudarthrobacter sp. ER25. This study contributes to the knowledge on microorganisms from hypersaline environments as plant growth promoters for their use in the production of salt-sensitive crops, among other potential uses.

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Section: Discussionmentioning

confidence: 99%

Amelioration of Saline Stress on Chia (Salvia hispanica L.) Seedlings Inoculated With Halotolerant Plant Growth-Promoting Bacteria Isolated From Hypersaline Environments

et al. 2021

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“…The application of consortium of proper rhizobia together with plant growthpromoting microorganisms is an effective and environment-friendly approach helps to alleviate different stress conditions such as drought and salinity among others, increase the efficiency of the symbiotic processes and improve the crop yield by different mechanisms of actions under variable conditions [41,42]. The ability of these bacteria to withstand to high levels of stresses makes them valuable to enhance legume production in harsh environmental conditions [42].…”

Section: Using Legumes and Nodule Endophytic Bacteria To Mitigate Soil Stressmentioning

confidence: 99%

“…Soil salinity is increasing continuously due to continuous climate change, and it becomes limiting factor for crop productivity worldwide [3]. It is estimated that more than 6% of land area has affected by salinity [48] and about 10-20% of cultivated and 27-33% of irrigated agricultural lands are afflicted by high salinity [7,42]. This degradation of the soil results in decreasing the quality and productivity of crops worldwide [42], at the time world population increase which necessitates utilizing lands affected by salinity to meet the food needs [49].…”

Section: Salinitymentioning

confidence: 99%

“…During symbiosis process, it is found that rhizobia are more sensitive to acidity than legumes, this means incapability of rhizobia to persist and survive in acidic soils which reduces symbiosis effectiveness and legumes productivity. To overcome this problem, it is important to seek for indigenous acid or alkaline-tolerant rhizobia capable of nitrogen fixation and enhance legumes production under acidic or alkaline conditions [42,59].…”

Section: Acidity/alkalinitymentioning

confidence: 99%

“…This finding indicates that acdS gene is responsible for salt tolerance and its expression confers host plant the ability to afford salinity. In addition, to overcome salinity stress using of Sinorhizobium meliloti would be a useful method [42]. For bacteria induce nodules, genes encoding Nod factors are also included in salt stress.…”

Section: The Genetic Mechanisms Involved In Nodule Endophytic Bacteria-legume Interaction To Mitigate the Different Stressesmentioning

confidence: 99%

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Legumes and Nodule Associated Bacteria Interaction as Key Factor for Abiotic Stresses Impact Mitigation

Idris¹,

Noh²

2022

Legumes Research - Volume 1

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Due to climate change, different soil stresses are increasing continuously and they threat the world food security as they limit crop productivity. Therefore, this chapter aims at integrate information about the interaction between legumes and endophytes which will help to: deep understanding of the endophytes-legume relationship, draw attention to the possibilities to exploit this relationship in soil stress mitigation and unraveling what is need to be addressed in the future. The study reviewed the most recent previous scientific works in the field. For legumes tissue colonization, endophytes almost use the same routs which results in their presence in the same niches. Co-inoculation of these bacteria enhances plant growth directly and indirectly. Some endophytes characterized by stress tolerance which interact with legumes and mitigate the adverse effect of soil stresses like salinity, acidity/alkalinity, drought and heavy metal contamination. To reduce stress and enhance plant growth, legume-associated bacteria produce ACC deaminase and other compounds. The interaction process involves induction and expression of many legume-associated bacteria chromosomal and plasmid genes which indicates that this process is a genetic based. So isolation of stress tolerant legume-associated microbes and identification of the gene related to stress tolerance will aid in production of genetic engineered endophytes adaptive to different stresses. It is concluded that all soil stresses can be addressed by application of stress tolerant endophytes to the soil affected with environmental stresses which is sustainable and low cost approach. To maximize the benefit, searching for indigenous stress tolerant endophytes is recommended.

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Response of peanut (Arachis hypogaea L.) plant to bio-fertilizer and plant residues in sandy soil

El-Sherbeny

Mousa

Zhran

2022

Environ Geochem Health

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Nitrogen (N) fertilizer has been intensively used to improve peanut productivity. However, the high cost of N fertilizer, and the need for sustainable alternative fertilizer sources have increased the strategic importance of nitrogen fixation (NF). Thus, field experiments were conducted in an experimental farm with a drip irrigation system, at the Atomic Energy Authority, Inshas, Egypt, in order to measure the impact of efficiency symbiotic Bradyrhizobium sp. and asymbiotic Azotobacter sp. on NF, from air and soil, in the presence or absence of plant residues on the growth and yield of peanut plant. All treatments received nitrogen fertilizer at a rate of 72 kg N per hectare. Nitrogen dose was applied using ammonium sulphate 15N labeled of 10% atom excess from the peanut. Results indicated that the application of Bradyrhizobium sp. with plant residues significantly increased fresh and dry weight/m2, pod and seed weight/plant−1,100- seed weight, and biological yield kg ha−1, where the highest mean values of seed yield (4648 and 4529 kg ha−1), oil % (52.29 and 52.21%), seed protein percentage (16.09 and 15.89%), as well as nitrogen derived from air (63.14 and 66.20%) in the first and second seasons were recorded under the application of Bradyrhizobium sp, respectively. Bradyrhizobium sp. inoculation showed nearly close portions of Ndfa to those recorded with Azotobacter sp., in both the presence and absence of plant residue application through the two seasons. The investigated yield signs and their properties were significantly enhanced by bacterial inoculation with plant residue application. The present study shows that both possibility of NF of peanut, and nitrogen uptake in the soil are enhanced by field inoculation with effective Bradyrhizobium sp. with plant residue application. In practice, inoculation is a great strategy to improve soil fertility for subsequent planting, since it helps boost the import of nitrogen from plant biomass into the soil.

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Nonsymbiotic and Symbiotic Bacteria Efficiency for Legume Growth Under Different Stress Conditions

Cited by 5 publications

References 105 publications

Amelioration of Saline Stress on Chia (Salvia hispanica L.) Seedlings Inoculated With Halotolerant Plant Growth-Promoting Bacteria Isolated From Hypersaline Environments

Amelioration of Saline Stress on Chia (Salvia hispanica L.) Seedlings Inoculated With Halotolerant Plant Growth-Promoting Bacteria Isolated From Hypersaline Environments

Legumes and Nodule Associated Bacteria Interaction as Key Factor for Abiotic Stresses Impact Mitigation

Response of peanut (Arachis hypogaea L.) plant to bio-fertilizer and plant residues in sandy soil

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