scholarly journals Isolation and Evaluation of Bacteria Exhibiting Multiple Plant Growth Traits in the Rhizosphere of Yellow Bell Pepper (Capsicum chinense)

2019 ◽  
pp. 1-6
Author(s):  
E. C. Chinakwe ◽  
N. U. Nwogwugwu ◽  
V. I. Ibekwe ◽  
P. O. Chinakwe ◽  
E. O. Egbadon ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Plant Growth ◽  
Rhizosphere Soil ◽  
Growth Traits ◽  
Soil Samples ◽  
Bell Pepper ◽  
Capsicum Chinense ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Plant Growth Promoting Traits

Aim: The study identified and evaluated bacteria exhibiting multiple plant growth traits in the Rhizosphere of Yellow Bell Pepper (Capsicum chinense).                                                              Study Design: Seeds of Capsicum chinense were planted in a soil and allowed to grow. After five eeks of planting, soil samples from the rhizosphere were collected and the bacterial community present in the rhizosphere soil of Capsicum chinense was studied. The isolated organisms were assessed for their ability to produce plant growth promoting traits. Place and Duration of Study: This study was carried out at an agricultural research farmland in the Federal University of Technology, Owerri, Nigeria. Methodology: Seeds of Capiscum chinense were planted in the soil samples in a greenhouse. Rhizosphere soil was collected for analysis to identify the bacterial composition of the rhizosphere soil.                                                                                                                                               Results: In this study the presence of Bacillus cereus, Staphylococcus aureus, Corynebacterium sp, Enterococcus feacalis and Bacillus polymyxa were evident in the rhizosphere samples collected. All isolates showed multiple plant growth promoting traits except Staphylococcus aureushich was positive for hydrogen cyanide production only. Conclusion: The results from this study showed that the bacterial community present in the soil can be used to effect significant vegetative crop yield and agricultural production. The isolated rhizobacteria can be formulated as bio-fertilizers or bioinnoculants, etc.

Bacterial communities associated with sugarcane under different agricultural management exhibit a diversity of plant growth-promoting traits and evidence of synergistic effect

2021 ◽  
pp. 126729
Author(s):  
Luis Guillermo Teheran-Sierra ◽  
Michelli Inácio Gonçalves Funnicelli ◽  
Lucas Amoroso Lopes de Carvalho ◽  
Maria Inês Tiraboschi Ferro ◽  
Marcos Antônio Soares ◽  
...  
Keyword(s):  
Plant Growth ◽  
Synergistic Effect ◽  
Bacterial Communities ◽  
Agricultural Management ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Plant Growth Promoting Traits

Assessing the Plant Growth-promoting Traits and Host Specificity of Endophytic Bacteria of Pulse Crops

2021 ◽  
Author(s):  
R. Thamizh Vendan ◽  
D. Balachandar
Keyword(s):  
Plant Growth ◽  
Endophytic Bacteria ◽  
Gene Sequencing ◽  
16S Rrna Gene Sequencing ◽  
Growth And Yield ◽  
Rrna Gene ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Rrna Gene Sequencing ◽  
Plant Growth Promoting Traits

Background: Symbiotic associations between legumes and Rhizobia are ancient and fundamental. However, the plant growth-promoting endophytes other than Rhizobia are not yet fully explored for pulses productivity. The present study was aimed to isolate efficient endophytic bacteria from pulses, assess their diversity, screen their plant growth-promoting activities and to test their potential as bio inoculants for pulses.Methods: We have isolated several endophytic bacteria from pulse crops more specifically from blackgram (Vigna mungo) and greengram (Vigna radiata). After careful screening, 15 promising endophytic isolates were selected for this study. The identification of endophytic bacterial isolates was performed by 16S rRNA gene sequencing. The isolates were tested for their potential for the plant growth-promoting traits such as nitrogen fixation, phosphate solubilization, indole-3-acetic acid production, siderophore secretion and antifungal activity. Pot culture experiments were conducted with the screened potential endophytic cultures.Result: The 16S rRNA gene sequencing revealed that species of Enterobacter, Bacillus, Pantoea, Pseudomonas, Acromobacter, Ocrobacterium were found as endophytes in blackgram and greengram. The in vitro screening identified Bacillus pumilus (BG-E6), Pseudomonas fluorescens (BG-E5) and Bacillus licheniformis (BG-E3) from blackgram and Pseudomonas chlororaphis (GG-E2) and Bacillus thuringiensis (GG-E7) from greengram as potential plant growth-promoting endophytes. These strains showed antagonism against plant pathogenic fungi. Upon inoculation of these endophytic PGPR strains, the blackgram and greengram growth and yield got increased. Among the strains, BG-E6 recorded 14.7% increased yield in blackgram and GG-E2 accounted for a 19.5% yield increase in greengram compared to respective uninoculated control. The experimental results showed that there was a host specificity found among the endophytic bacterial cultures with pulses. The cross inoculation of endophytic strains did not perform well to enhance the growth and yield of their alternate hosts. 

scholarly journals Evaluation of Pseudomonas isolates from wheat for some important plant growth promoting traits

2014 ◽  
Vol 8 (27) ◽  
pp. 2604-2608 ◽  
Author(s):  
Kumar Adesh ◽  
Kumar Shukla Umesh ◽  
Singh Anshu ◽  
Kumar Poonam Arun ◽  
Prasad Shambhoo ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Plant Growth Promoting Traits
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