scholarly journals DETERMINATION OF THE EFFECT OF PLANT GROWTH PROMOTING BACTERIA ON WHEAT (TRITICUM AESTIVUM L.) DEVELOPMENT UNDER SALINITY STRESS CONDITIONS

2019 ◽  
Vol 17 (1) ◽  
pp. 1129-1141 ◽  
Author(s):  
S SÖĞÜT ◽  
F ÇIĞ
Keyword(s):  
Triticum Aestivum ◽  
Plant Growth ◽  
Salinity Stress ◽  
Triticum Aestivum L ◽  
Stress Conditions ◽  
Plant Growth Promoting Bacteria ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Functional abilities of cultivable plant growth promoting bacteria associated with wheat (Triticum aestivum L.) crops

2016 ◽  
Vol 39 (1) ◽  
pp. 111-121 ◽  
Author(s):  
Fernanda da S. Moreira ◽  
Pedro B. da Costa ◽  
Rocheli de Souza ◽  
Anelise Beneduzi ◽  
Bruno B. Lisboa ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Plant Growth ◽  
Triticum Aestivum L ◽  
Plant Growth Promoting Bacteria ◽  
Functional Abilities ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Modulation of Triticum aestivum L. tolerance to combined abiotic/biotic stresses by endophytic plant growth promoting bacteria Bacillus subtilis

2020 ◽  
Author(s):  
A.E. Ibragimov ◽  
◽  
D.Yu. Garshina ◽  
An. Kh. Baymiev ◽  
O.V. Lastochkina ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Bacillus Subtilis ◽  
Plant Growth ◽  
Host Plant ◽  
Triticum Aestivum L ◽  
Plant Growth Promoting Bacteria ◽  
Stress Effect ◽  
Biotic Stresses ◽  
Plant Growth Promoting ◽  
Growth Promoting

Wheat (Triticum aestivum L.) is one of the most important cereal food crops worldwide. Various abiotic and biotic stresses or their combinations lead to crop losses (up to 50-82%) and pose a serious threat to the agricultural industry and food security. Plant growth-promoting endophytic bacteria Bacillus subtilis are considered as a bioactive and eco-friendly strategy for plant protection. Earlier, we have shown B. subtilis 10-4 has a growth-promoting and anti-stress effect on wheat under water deficiency. Here, we investigated the effect of B. subtilis 10-4 and B. subtilis 10-4+salicylic acid (SA) on growth and tolerance of wheat (cv. ‘Omskaya-35’) to combined drought (12%PEG) and Fusarium culmorum. 12%PEG and F. culmorum led to yellowing of leaves (in addition to traces of the root damages). Inoculation with 10-4 and especially 10-4+SA reduced the fusarium development in wheat under drought. Similar effects were revealed for growth parameters. Also, 10-4 (especially 10-4+SA) reduces stress-induced lipid peroxidation (MDA). Such physiological effect may be connected with the ability of strain 10-4 to colonize the internal tissues of host-plant and regulate metabolism from the inside. The obtained construct based on the plasmid pHT01 and the green fluorescent protein (gfp) gene, by which was modified the strain 10-4, will allow revealing the nature of the symbiotic relationships between the strain 10-4 and host-plant. The findings indicate that application B. subtilis 10-4 and its composition with SA may be an effective strategy to increase wheat tolerance to the combined abiotic/biotic stresses.

Evaluation of ACC-deaminase-producing rhizobacteria to alleviate water-stress impacts in wheat (Triticum aestivum L.) plants

2019 ◽  
Vol 65 (5) ◽  
pp. 387-403 ◽  
Author(s):  
Dinesh Chandra ◽  
Rashmi Srivastava ◽  
Vadakattu V.S.R. Gupta ◽  
Christopher M.M. Franco ◽  
Anil Kumar Sharma
Keyword(s):  
Triticum Aestivum ◽  
Water Stress ◽  
Plant Growth ◽  
Acc Deaminase ◽  
Triticum Aestivum L ◽  
Stress Conditions ◽  
Nutrient Concentrations ◽  
Pgp Traits ◽  
Plant Growth Promoting ◽  
Growth Promoting

Application of plant-growth-promoting rhizobacteria (PGPR) is an environmentally sustainable option to reduce the effects of abiotic and biotic stresses on plant growth and productivity. Bacteria isolated from rain-fed agriculture field soils in the Central Himalaya Kumaun region, India, were evaluated for the production of 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase. Those producing ACC deaminase in high amounts were evaluated for their potential to improve wheat (Triticum aestivum L.) plant growth under irrigated and water-stress conditions in two glasshouse experiments. Some of the isolates also showed other plant-growth-promoting (PGP) traits, e.g., N2 fixation, siderophore production, and phosphate solubilization; however, strains with higher ACC deaminase activity showed the greatest effects. These were Variovorax paradoxus RAA3; Pseudomonas spp. DPC12, DPB13, DPB15, DPB16; Achromobacter spp. PSA7, PSB8; and Ochrobactrum anthropi DPC9. In both simulated irrigated and water-stress conditions, a single inoculation of RAA3 and a consortium of DPC9 + DPB13 + DPB15 + DPB16 significantly improved wheat plant growth and foliar nutrient concentrations and caused significant positive changes in antioxidant properties compared with noninoculated plants especially under water stress. These findings imply that PGPB having ACC deaminase activity together with other PGP traits could potentially be effective inoculants to improve the growth of wheat plants in water-stressed rain-fed environments.

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