Two plant growth promoting bacterial Bacillus strains possess different mechanisms in adsorption and resistance to cadmium

2020 ◽  
Vol 741 ◽  
pp. 140422 ◽  
Author(s):  
Yaowei Chi ◽  
Yueyuan Huang ◽  
Juncai Wang ◽  
Xunfeng Chen ◽  
Shaohua Chu ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Bacillus Strains

In Vitro and In Vivo Characterization of Plant Growth Promoting Bacillus Strains Isolated from Extreme Environments of Eastern Algeria

2013 ◽  
Vol 172 (4) ◽  
pp. 1735-1746 ◽  
Author(s):  
Asma Ait-Kaki ◽  
Noreddine Kacem-Chaouche ◽  
Marc Ongena ◽  
Mounira Kara-Ali ◽  
Laid Dehimat ◽  
...  
Keyword(s):  
Plant Growth ◽  
Extreme Environments ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Eastern Algeria ◽  
In Vivo Characterization ◽  
Bacillus Strains

Characterization of plant growth-promoting alkalotolerant Alcaligenes and Bacillus strains for mitigating the alkaline stress in Zea mays

2020 ◽  
Vol 113 (7) ◽  
pp. 889-905 ◽  
Author(s):  
Vijay Kant Dixit ◽  
Sankalp Misra ◽  
Shashank Kumar Mishra ◽  
Shri Krishna Tewari ◽  
Namita Joshi ◽  
...  
Keyword(s):  
Zea Mays ◽  
Plant Growth ◽  
Alkaline Stress ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Bacillus Strains

Termitarium-inhabitingBacillus endophyticusTSH42 andBacillus cereusTSH77 colonizingCurcuma longaL.: isolation, characterization, and evaluation of their biocontrol and plant-growth-promoting activities

2016 ◽  
Vol 62 (10) ◽  
pp. 880-892 ◽  
Author(s):  
Ankit Kumar Chauhan ◽  
Dinesh Kumar Maheshwari ◽  
Kangmin Kim ◽  
Vivek K. Bajpai
Keyword(s):  
Antifungal Activity ◽  
Plant Growth ◽  
Curcuma Longa ◽  
Pathogenic Fungus ◽  
Mass Spectrometry Analysis ◽  
In Vitro Assays ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Rhizome Rot ◽  
Bacillus Strains

Bacillus strains were isolated from termitarium soil and screened for their antifungal activity through the production of diffusible and volatile metabolites. Further, the bacterial strains that showed antifungal activity were evaluated for their biocontrol potential on the basis of their plant-growth-promoting attributes. Termitarium-inhabiting Bacillus strains TSH42 and TSH77 significantly reduced the growth of pathogenic fungus Fusarium solani, controlled the symptoms of rhizome rot in turmeric (Curcuma longa L.), and demonstrated various plant-growth-promoting traits in different in vitro assays. On the basis of morphological, physiological, biochemical, and 16S rDNA characteristics, isolates TSH42 and TSH77 were identified as Bacillus endophyticus (KT379993) and Bacillus cereus (KT379994), respectively. Through liquid chromatography – mass spectrometry analysis, acidified cell-free culture filtrate (CFCF) of B. cereus TSH77 was shown to contain surfactin and fengycin, while CFCF of B. endophyticus TSH42 contained iturin in addition to surfactin and fengycin. Treatment of the turmeric (C. longa L.) plants with TSH42 and TSH77 significantly reduced the percentage incidence of rhizome rot disease caused by F. solani. The same treatment also increased the fresh rhizome biomass and plant growth in greenhouse conditions.

scholarly journals Genome-guided insights of tropical Bacillus strains efficient in maize growth promotion

2020 ◽  
Vol 96 (9) ◽  
Author(s):  
Camila Cristina Vieira Velloso ◽  
Christiane Abreu de Oliveira ◽  
Eliane Aparecida Gomes ◽  
Ubiraci Gomes de Paula Lana ◽  
Chainheny Gomes de Carvalho ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth Promotion ◽  
Dry Weight ◽  
Phenotypic Characterization ◽  
Plant Growth Promoting Bacteria ◽  
Maize Genotypes ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Bacillus Strains

ABSTRACT Plant growth promoting bacteria (PGPB) are an efficient and sustainable alternative to mitigate biotic and abiotic stresses in maize. This work aimed to sequence the genome of two Bacillus strains (B116 and B119) and to evaluate their plant growth-promoting (PGP) potential in vitro and their capacity to trigger specific responses in different maize genotypes. Analysis of the genomic sequences revealed the presence of genes related to PGP activities. Both strains were able to produce biofilm and exopolysaccharides, and solubilize phosphate. The strain B119 produced higher amounts of IAA-like molecules and phytase, whereas B116 was capable to produce more acid phosphatase. Maize seedlings inoculated with either strains were submitted to polyethylene glycol-induced osmotic stress and showed an increase of thicker roots, which resulted in a higher root dry weight. The inoculation also increased the total dry weight and modified the root morphology of 16 out of 21 maize genotypes, indicating that the bacteria triggered specific responses depending on plant genotype background. Maize root remodeling was related to growth promotion mechanisms found in genomic prediction and confirmed by in vitro analysis. Overall, the genomic and phenotypic characterization brought new insights to the mechanisms of PGP in tropical Bacillus.

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