scholarly journals Use of plant growth promoting rhizobacteria (PGPRs) in the mitigation of water deficiency of tomato plants (Solanum lycopersicum L.)

2021 ◽  
Vol 22 (1) ◽  
pp. 167-177
Author(s):  
Andras Nemenyi ◽  
Bulgan ANDRYEI ◽  
Kitti Zsuzsanna HORVÁTH ◽  
Stella AGYEMANG DUAH ◽  
Sándor TAKÁCS ◽  
...  
Keyword(s):  
Plant Growth ◽  
Solanum Lycopersicum ◽  
Plant Growth Promoting Rhizobacteria ◽  
Water Deficiency ◽  
Tomato Plants ◽  
Solanum Lycopersicum L ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Isolation and characterization of novel plant growth-promoting rhizobacteria (PGPR) isolates from tomato (Solanum lycopersicum L.) rhizospherical soil: A novel IAA producing bacteria

2021 ◽  
Vol 48 (2) ◽  
Author(s):  
Narjes H. Dashti ◽  
◽  
Nedaa Y. Ali Al-Sarraf ◽  
Vineetha M. Cherian ◽  
Magdy S. Montasser ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Plant Growth ◽  
Solanum Lycopersicum ◽  
Indole Acetic Acid ◽  
Plant Growth Promoting Rhizobacteria ◽  
Nucleotide Sequence Analysis ◽  
Iaa Production ◽  
Solanum Lycopersicum L ◽  
Plant Growth Promoting ◽  
Growth Promoting

Indole acetic acid (IAA) production is one of the distinctive traits of plant growth-promoting rhizobacteria (PGPR). Ten different rhizobacterial strains were isolated from the roots of tomato crops (Solanum lycopersicum L.), grown in Kuwait, and then screened for their plant growth-promoting abilities, with emphasis on IAA production. The isolated strains were identified by 16S partial r-RNA sequencing and further characterized by conventional biochemical tests. Based on the nucleotide sequence analysis and homology of the isolates, a phylogenetic tree was constructed. The plant growth-promoting abilities of the strains were determined by testing for ammonium production, hydrogen cyanide and acid production, growth in nitrogen-free media, phosphate solubilization, and IAA production. The potential IAA PGPRs were re-applied onto the rhizosphere of green-house grown tomato plants to determine their effects on tomato growth. The results have indicated that all isolated strains were able to produce indole acetic acid even without the presence of a tryptophan precursor.

scholarly journals Induction of Bacterial Canker Resistance in Tomato Plants Using Plant Growth Promoting Rhizobacteria

2019 ◽  
Vol 13 (1) ◽  
pp. 215-222 ◽  
Author(s):  
Yuliya Kolomiiets ◽  
Ivan Grygoryuk ◽  
Artur Likhanov ◽  
Lyudmila Butsenko ◽  
Yaroslav Blume
Keyword(s):  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Cell Suspensions ◽  
Systemic Resistance ◽  
Plant Growth Promoting Bacteria ◽  
Bacterial Canker ◽  
Tomato Plants ◽  
High Productivity ◽  
Plant Growth Promoting ◽  
Growth Promoting

Background: By inducing the production of inhibitory allelochemicals and mechanisms of systemic resistance plant growth promoting bacteria (PGPB) help plants to cope with stresses. Materials and Methods: In this study cell suspensions of Bacillus subtilis, Pseudomonas fluorescens or Azotobacter chroococcum were used to test the efficacy of these PGPB in inducing resistance in tomato (Lycopersicon esculentum Mill) against Clavibacter michiganensis subsp michiganensis, a bacteria known to cause canker disease. To test this hypothesis, seedlings of Chaika variety, characterized by short growing, early-ripening, high productivity and resistance against fusarium and the C. michiganensis strain ІZ-38 isolated in Kyiv were employed. Results and Conclusion: The use of cell suspensions of the PGPB B. subtilis, A. chroococcum or P. fluorescens induced an increment in the resistance of tomato plants against the causative agent of bacterial canker (C. michiganensis subsp. michiganensis) by 42–50%. PGPB in fact promoted in C. michiganensis infected tomato plants: i) the accumulation of chlorophyll a and b and carotenoids; ii) the thickening of the upper and lower epidermis of leaves; iii) the deposition of biopolymers with protective properties in epidermal cells; iv) the activity of the peroxidase enzyme and v) the net productivity of photosynthesis.

scholarly journals Transgenic tomato plants alter quorum sensing in plant growth-promoting rhizobacteria

2008 ◽  
Vol 6 (5) ◽  
pp. 442-452 ◽  
Author(s):  
Jorge Barriuso ◽  
Beatriz Ramos Solano ◽  
Rupert G. Fray ◽  
Miguel Cámara ◽  
Anton Hartmann ◽  
...  
Keyword(s):  
Quorum Sensing ◽  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Transgenic Tomato ◽  
Tomato Plants ◽  
Transgenic Tomato Plants ◽  
Plant Growth Promoting ◽  
Growth Promoting
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