scholarly journals Isolation of Bacillus amyloliquefaciens MJ-3 and Its Effect on the Early Growth Promotion of Red Pepper Plug Seedlings in Compost

2003 ◽  
Vol 13 (5) ◽  
pp. 582-589 ◽  
Keyword(s):  
Bacillus Amyloliquefaciens ◽  
Growth Promotion ◽  
Early Growth ◽  
Red Pepper

scholarly journals Biohardening of Tissue Cultured Banana Plantlets of cv. Ney Poovan for the Management of Fusarium wilt of Banana with Bacillus amyloliquefaciens (VB7) Triggers Defence Gene Products and Growth Promotion

2020 ◽  
pp. 352-366
Author(s):  
C. Y. Shalini Udaya ◽  
S. Nakkeeran ◽  
K. Soorianathasundaram
Keyword(s):  
Fusarium Wilt ◽  
Untreated Control ◽  
Bacillus Amyloliquefaciens ◽  
Growth Promotion ◽  
Bacterial Endophytes ◽  
Leaf Production ◽  
Control Activity ◽  
Ney Poovan ◽  
Fusarium Wilt Of Banana

Fusarium wilt of banana is the most devastating disease caused by Fusarium oxysporum f.sp. cubense (Foc). In order to combat the early onset of Fusarium wilt disease, an experiment was carried out on biohardening of tissue cultured plantlets. Six bacterial endophytes were observed to inhibit the growth of Foc in vitro. Among the six bacterial endophytes, Bacillus amyloliquefaciens (VB7) inhibited mycelial growth of Foc to an extent of 70.58% over control. Further, these bacterial endophytes were used for biohardening of the tissue cultured banana plantlets cv. Ney Poovan (AB) during primary and secondary hardening stages. Among the bacterial endophytes, B. amyloliquefaciens was found to significantly enhance plant height, leaf production, root numbers and root length compared to untreated control. Activity of defense enzymes were  also enhanced and such increase in activity was observed to be to an  extent of 93.67% in peroxidase, 92.39% polyphenol oxidase, 97.60% phenylalanine ammonia lyase  and 26.23% in β-1, 3-glucanase defence enzymes in plants biohardened with B. amyloliquefaciens (VB7) over untreated control after inoculation of Foc. Tissue cultured plants of Ney Poovan biohardened with B. amyloliquefaciens   (VB7),   B.   paraconglomeratum   (YEB   PT2) and S. maltophilia (YEB RH2) were completely free from wilt incidence symptoms upto planting stage when challenged with Foc inoculum under pot culture conditions. As among these three endophytes, B. amyloliquefaciens (VB7) also influenced favourable growth promotion, it can serve as a potential biocontrol agent for management of Fusarium wilt of banana.

Effects of the Applications of Clay Minerals on the Early Growth of Red Pepper in Growing Medium

2012 ◽  
Vol 30 (4) ◽  
pp. 463-470 ◽  
Author(s):  
Dong-Gi Lee ◽  
Seok-Eon Lee ◽  
Deok-Hyun Kim ◽  
Hyeon-Ki Hong ◽  
Ju-Hyun Nam ◽  
...  
Keyword(s):  
Clay Minerals ◽  
Early Growth ◽  
Red Pepper ◽  
Growing Medium

Biocontrol potential of the endophytic Bacillus amyloliquefaciens YN201732 against tobacco powdery mildew and its growth promotion

2020 ◽  
Vol 143 ◽  
pp. 104160 ◽  
Author(s):  
Rong Jiao ◽  
Shahzad Munir ◽  
Pengfei He ◽  
Huanwen Yang ◽  
Yixin Wu ◽  
...  
Keyword(s):  
Powdery Mildew ◽  
Bacillus Amyloliquefaciens ◽  
Growth Promotion ◽  
Biocontrol Potential

scholarly journals Comparative Genome Analysis of Bacillus amyloliquefaciens Focusing on Phylogenomics, Functional Traits, and Prevalence of Antimicrobial and Virulence Genes

2021 ◽  
Vol 12 ◽  
Author(s):  
Hualin Liu ◽  
Vimalkumar Prajapati ◽  
Shobha Prajapati ◽  
Harsh Bais ◽  
Jianguo Lu
Keyword(s):  
Functional Traits ◽  
Genome Analysis ◽  
Bacillus Amyloliquefaciens ◽  
Virulence Genes ◽  
Growth Promotion ◽  
Sequence Similarity ◽  
Genome Database ◽  
Depth Analysis ◽  
Clade 1 ◽  
Core Genes

Bacillus amyloliquefaciens is a gram-positive, nonpathogenic, endospore-forming, member of a group of free-living soil bacteria with a variety of traits including plant growth promotion, production of antifungal and antibacterial metabolites, and production of industrially important enzymes. We have attempted to reconstruct the biogeographical structure according to functional traits and the evolutionary lineage of B. amyloliquefaciens using comparative genomics analysis. All the available 96 genomes of B. amyloliquefaciens strains were curated from the NCBI genome database, having a variety of important functionalities in all sectors keeping a high focus on agricultural aspects. In-depth analysis was carried out to deduce the orthologous gene groups and whole-genome similarity. Pan genome analysis revealed that shell genes, soft core genes, core genes, and cloud genes comprise 17.09, 5.48, 8.96, and 68.47%, respectively, which demonstrates that genomes are very different in the gene content. It also indicates that the strains may have flexible environmental adaptability or versatile functions. Phylogenetic analysis showed that B. amyloliquefaciens is divided into two clades, and clade 2 is further dived into two different clusters. This reflects the difference in the sequence similarity and diversification that happened in the B. amyloliquefaciens genome. The majority of plant-associated strains of B. amyloliquefaciens were grouped in clade 2 (73 strains), while food-associated strains were in clade 1 (23 strains). Genome mining has been adopted to deduce antimicrobial resistance and virulence genes and their prevalence among all strains. The genes tmrB and yuaB codes for tunicamycin resistance protein and hydrophobic coat forming protein only exist in clade 2, while clpP, which codes for serine proteases, is only in clade 1. Genome plasticity of all strains of B. amyloliquefaciens reflects their adaption to different niches.

scholarly journals Optimizing the Fermentation Conditions and Determining the Disease Control and Growth Promotion Function of Bacillus Amyloliquefaciens 3-5

2021 ◽  
Author(s):  
Ting Ma ◽  
Chengde Yang ◽  
Fengfeng Cai ◽  
Lingxiao Cui ◽  
Zhezhe Li ◽  
...  
Keyword(s):  
Bacillus Amyloliquefaciens ◽  
Corn Starch ◽  
Growth Promotion ◽  
Plant Diseases ◽  
Rice Hull ◽  
Control Effect ◽  
Fermentation Time ◽  
Fermentation Conditions ◽  
Initial Ph ◽  
Solids Content

Abstract Bacillus spp. are helping to develop towards sustainable agriculture and have become a research hotspot in the field of plant pathology because they have great development potential such as control fungal plant diseases. Bacillus Amyloliquefaciens 3-5 was used as antagonistic bacteria in this experiment. The optimal medium for solid-state fermentation of B. amyloliquefaciens 3-5 contained bran (35%), rice hull powder (40%), corn gluten (20%), bean flour (15%), corn starch (1.5%), beef extract (2.5%) and MgSO4 (1.5%), and the optimal fermentation conditions included an inoculum of 6%, a solids content of 36 g/L, a feed-to-water ratio of 1:1, a fermentation temperature of 32 ℃, an initial pH of 7.0 and fermentation time of 44 h. When the dosage of the B. amyloliquefaciens 3-5 agent was 10%, the thick stems, root length and plant height of cucumber were significantly higher than those of the control (P＜0.05), and the growth rates were 77.45 %, 35.77 %, and 53.33 %, respectively in pot experiments. Compared with the control, and the preventive effect and therapeutic effect on cucumber Fusarium wilt were 72.09 % and 48.83 % by the application of B. amyloliquefaciens 3-5 agent，which showed that cucumber Fusarium wilt was successfully controlled by a newly isolated strain of B. Amyloliquefaciens 3-5. These results suggested that the prevention and control effect of B. amyloliquefaciens 3-5 agent on cucumber Fusarium wilt could not be underestimated.

Growth promotion of red pepper plug seedlings and the production of gibberellins by Bacillus cereus, Bacillus macroides and Bacillus pumilus

2004 ◽  
Vol 26 (6) ◽  
pp. 487-491 ◽  
Author(s):  
Gil-Jae Joo ◽  
Young-Mog Kim ◽  
In-Jung Lee ◽  
Kyung-Sik Song ◽  
In-Koo Rhee
Keyword(s):  
Bacillus Cereus ◽  
Bacillus Pumilus ◽  
Growth Promotion ◽  
Red Pepper
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