Plant-growth-promoting rhizobacteria isolated from a Calcisol in a semi-arid region of Uzbekistan: biochemical characterization and effectiveness

2005 ◽  
Vol 168 (1) ◽  
pp. 94-99 ◽  
Author(s):  
Dilfuza Egamberdiyeva
Keyword(s):  
Plant Growth ◽  
Arid Region ◽  
Biochemical Characterization ◽  
Plant Growth Promoting Rhizobacteria ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Semi Arid Region ◽  
Semi Arid

scholarly journals Bioinoculants in Technological Alleviation of Climatic Stress in Plants

2021 ◽  
Author(s):  
Rafia Younas ◽  
Shiza Gul ◽  
Rehan Ahmad ◽  
Ali Raza Khan ◽  
Mumtaz Khan ◽  
...  
Keyword(s):  
Plant Growth ◽  
Cold Stress ◽  
Stress Proteins ◽  
Global Climate ◽  
Agricultural Practices ◽  
Plant Growth Promoting Rhizobacteria ◽  
Growth And Yield ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Semi Arid

Global climate change is leading to a series of frequent onset of environmental stresses such as prolonged drought periods, dynamic precipitation patterns, heat stress, and cold stress on plants and commercial crops. The increasing severity of such stresses is not only making agriculture and related economic sector vulnerable but also negatively influences plant diversity patterns. The global temperature of planet Earth has risen to 1.1°C since the last 19th century. An increase in surface temperature leads to an increase in soil temperature which ultimately reduces water content in the soil, thereby, reducing crop growth and yield. Moreover, this situation is becoming more intense for agricultural practices in arid and semi-arid regions. To overcome climatically induced stresses, acclimatization of plant species via bioinoculation with Plant Growth Promoting Rhizobacteria (PGPR) is becoming an effective approach. The PGPR are capable of colonizing rhizosphere (exophytes) as well as plant organs (endophytes), where they trigger an accumulation of osmolytes for osmoregulation or improving gene expression of heat or cold stress proteins, or by signaling the synthesis of phytohormones, metabolites, proteins, and antioxidants to scavenge reactive oxygen species. Thus, PGPR exhibiting multiple plant growth-promoting traits can be employed via bioinoculants to improve the plant’s tolerance against unfavorable stress conditions.

Physiological and biochemical characterization ofAzospirillum brasilensestrains commonly used as plant growth-promoting rhizobacteria

2014 ◽  
Vol 54 (12) ◽  
pp. 1310-1321 ◽  
Author(s):  
Luciana P. Di Salvo ◽  
Esdras Silva ◽  
Kátia R.S. Teixeira ◽  
Rosalba Esquivel Cote ◽  
M. Alejandra Pereyra ◽  
...  
Keyword(s):  
Plant Growth ◽  
Biochemical Characterization ◽  
Plant Growth Promoting Rhizobacteria ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Physiological And Biochemical

scholarly journals Characterization and Identification of Plant Growth Promoting Traits of a Rhizobacteria: Pantoea Agglomerans 20-19

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Kahkahi RE ◽  
◽  
Moustaine M ◽  
Mouhajir A ◽  
Zouhair R ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Arid Area ◽  
Pantoea Agglomerans ◽  
Ammonia Production ◽  
Rdna Sequences ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Semi Arid

Plant Growth Promoting Rhizobacteria (PGPR) are known to influence positively plant growth by various direct or indirect mechanisms. The objective of this study was to characterize and identified a bacterium was isolated from the wheat rhizosphere of an semi arid area Meknes (Morocco). The studied strain possess several PGPR trais such as nitrogen fixation ability, phosphate solubilization, production of auxins and Ammonia production. Based on their 16S rDNA sequences, the strain were identified as Pantoea agglomerans 20- 19. This Pantoea agglomerans 20-19 is capable of IAA, ammonia production, nitrogen fixation and solubilization phosphorus. These results showed that Pantoea agglomerans 20-19 with its PGPR traits could consitute a good biofertilizer in semi arid area.

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