Potential Plant Growth-promoting Activity of Pseudomonas spp. and Bacillus spp. as Biocontrol Agents Against Damping-off in Alfalfa

2014 ◽  
Vol 13 (1) ◽  
pp. 8-17 ◽  
Author(s):  
Ehab A.D. Sarhan ◽  
Heba Sh. Shehata
Keyword(s):  
Plant Growth ◽  
Biocontrol Agents ◽  
Damping Off ◽  
Pseudomonas Spp ◽  
Bacillus Spp ◽  
Plant Growth Promoting ◽  
Plant Growth Promoting Activity ◽  
Growth Promoting

scholarly journals A prospectus of plant growth promoting endophytic bacterium from orchid (Vanda cristata)

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Sujit Shah ◽  
Krishna Chand ◽  
Bhagwan Rekadwad ◽  
Yogesh S. Shouche ◽  
Jyotsna Sharma ◽  
...  
Keyword(s):  
Plant Growth ◽  
Root Colonization ◽  
Endophytic Bacterium ◽  
Epifluorescence Microscopy ◽  
In Vitro Cultivation ◽  
Rrna Gene ◽  
Bacillus Spp ◽  
Plant Growth Promoting ◽  
Growth Promoting

Abstract Background A plant growth-promoting endophytic bacterium PVL1 isolated from the leaf of Vanda cristata has the ability to colonize with roots of plants and protect the plant. PVL1 was isolated using laboratory synthetic media. 16S rRNA gene sequencing method has been employed for identification before and after root colonization ability. Results Original isolated and remunerated strain from colonized roots were identified as Bacillus spp. as per EzBiocloud database. The presence of bacteria in the root section of the plantlet was confirmed through Epifluorescence microscopy of colonized roots. The in-vitro plantlet colonized by PVL1 as well as DLMB attained higher growth than the control. PVL1 capable of producing plant beneficial phytohormone under in vitro cultivation. HPLC and GC-MS analysis suggest that colonized plants contain Indole Acetic Acid (IAA). The methanol extract of Bacillus spp., contains 0.015 μg in 1 μl concentration of IAA. PVL1 has the ability to produce antimicrobial compounds such as ethyl iso-allocholate, which exhibits immune restoring property. One-way ANOVA shows that results were statistically significant at P ≤ 0.05 level. Conclusions Hence, it has been concluded that Bacillus spp. PVL1 can promote plant growth through secretion of IAA during root colonization and ethyl iso-allocholate to protect plants from foreign infections. Thus, this study supports to support Koch’s postulates of bacteria establishment.

scholarly journals Lettuce Production under Reduced Levels of N-fertilizer in the Presence of Plant Growth-promoting Bacillus spp. Bacteria

2019 ◽  
Vol 13 (4) ◽  
pp. 1941-1952
Author(s):  
Wilson Story Venancio ◽  
Juliana Marcolino Gomes ◽  
Andre Shigueyoshi Nakatani ◽  
Mariangela Hungria ◽  
Ricardo Silva Araujo
Keyword(s):  
Plant Growth ◽  
N Fertilizer ◽  
Bacillus Spp ◽  
Plant Growth Promoting ◽  
Growth Promoting

Effect of osmotic stress on plant growth promoting Pseudomonas spp.

2010 ◽  
Vol 192 (10) ◽  
pp. 867-876 ◽  
Author(s):  
V. Sandhya ◽  
Sk. Z. Ali ◽  
B. Venkateswarlu ◽  
Gopal Reddy ◽  
Minakshi Grover
Keyword(s):  
Plant Growth ◽  
Osmotic Stress ◽  
Pseudomonas Spp ◽  
Plant Growth Promoting ◽  
Growth Promoting
Sign in / Sign up

Export Citation Format

Share Document