Growth promotion effects of bacillus subtilis on bletilla striata seedlings

2021 ◽  
Vol 0 (0) ◽  
pp. 0
Author(s):  
Bi-Sheng Huang ◽  
Di Liu ◽  
Jian Chen ◽  
Hui Yang ◽  
Zubaida Yousaf ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Growth Promotion ◽  
Bletilla Striata

Growth promotion effects of bacillus subtilis on bletilla striata seedlings

2021 ◽  
Vol 0 (0) ◽  
pp. 0
Author(s):  
Bi-Sheng Huang ◽  
Di Liu ◽  
Jian Chen ◽  
Hui Yang ◽  
Zubaida Yousaf ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Growth Promotion ◽  
Bletilla Striata

scholarly journals Combined Application of Rhizosphere Bacteria with Endophytic Bacteria Suppresses Root Diseases and Increases Productivity of Black Pepper (Piper nigrum L.)

Agriculture ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 15
Author(s):  
Sy Dinh Nguyen ◽  
Thi Huyen Trang Trinh ◽  
Trung Dzung Tran ◽  
Tinh Van Nguyen ◽  
Hoang Van Chuyen ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Endophytic Bacteria ◽  
Growth Promotion ◽  
Black Pepper ◽  
Rhizosphere Bacteria ◽  
Growth And Yield ◽  
Piper Nigrum ◽  
Bacillus Velezensis ◽  
Root Knot Nematode ◽  
Central Highland

Black pepper (Piper nigrum L.) is one of the most important crops and global demand continues to increase, giving it a high export value. However, black pepper cultivation has been seriously affected by a number of pathogenic diseases. Among them, “quick wilt” caused by Phytophthora sp., “slow decline” caused by Fusarium sp., and root-knot nematode Meloidogyne sp. have a serious negative effect on black pepper growth and productivity. There have been different chemical and biological methods applied to control these diseases, but their effectiveness has been limited. The aim of this research was to evaluate different combinations of rhizosphere bacteria and endophytic bacteria isolated from black pepper farms in the Central Highland of Vietnam for their ability to suppress pathogens and promote black pepper growth and yield. Formula 6, containing the strains Bacillus velezensis KN12, Bacillus amyloliquefaciens DL1, Bacillus velezensis DS29, Bacillus subtilis BH15, Bacillus subtilis V1.21 and Bacillus cereus CS30 exhibited the largest effect against Phytophthora and Fusarium in the soil and in the roots of black pepper. These bio-products also increased chlorophyll a and b contents, which led to a 1.5-fold increase of the photosynthetic intensity than the control formula and a 4.5% increase in the peppercorn yield (3.45 vs. 3.30 tons per hectare for the control). Our results suggest that the application of rhizosphere and endophytic bacteria is a promising method for disease control and growth-promotion of black pepper.

scholarly journals Bacillus subtilis ALBA01 can mitigate onion pink root symptoms caused by Setophoma terrestris

2019 ◽  
Author(s):  
P Sayago ◽  
F Juncosa ◽  
A Albarracín Orio ◽  
D.F. Luna ◽  
G Molina ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Crop Rotation ◽  
Growth Promotion ◽  
Disease Incidence ◽  
Soil Fumigation ◽  
Promotion Effect ◽  
Physiological Variables ◽  
Yield Parameters ◽  
Onion Cultivar ◽  
Setophoma Terrestris

AbstractSoil-borne pathogen Setophoma terrestris is the causal agent of pink root of onion, one of the most challenging diseases in onion production. Conventional approaches for managing the disease like solarization, soil fumigation and crop rotation have not been proven effective enough. In this work, we evaluated the biocontrol capacity of Bacillus subtilis ALBA01 (BsA01) against S. terrestris, in a highly susceptible onion cultivar, both under greenhouse and field conditions. Disease incidence and severity were evaluated together with growth, photosynthesis among other physiological variables and yield parameters. When compared with plants infected with the pathogen, those plants co-inoculated with BsA01 showed significantly less damage and levels of biocontrol above 50%. With regard to physiological parameters, plants challenged with S terrestris and inoculated with BsA01 performed as well as the control non-infected plants revealing a growth promotion effect of BsA01 on onion plants.

scholarly journals EFFECT OF BIOLOGICALLY ACTIVE PREPARATIONS ON PRODUCTIVITY AND QUALITY OF SWEET PEPPER FRUITS IN CONTROLLED CONDITIONS

2018 ◽  
pp. 81-85
Author(s):  
O. R. Udalova ◽  
V. N. Pishchik ◽  
G. V. Mirskaya ◽  
V. Eu. Vertebny ◽  
N. I. Vorobyov ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Bacillus Subtilis ◽  
Growth Promotion ◽  
Sugar Content ◽  
Sweet Pepper ◽  
Biologically Active ◽  
Average Weight ◽  
Controlled Conditions ◽  
Joint Application

Effects of humic preparation (HP) Stimulife and PGPR (plant growth promotion rhizobacteria) Bacillus subtilis №2 on the productivity and quality of the sweet pepper (Capsicum annuum L.) fruits were studied in the control conditions. It was experimentally established that the use of Stimulife and bacteria Bacillus subtilis №2 resulted in an increase in plant height, productivity and biochemical composition of sweet peppers. Differences in the effect of the studied preparations on the morphometric, phenological and biochemical characteristics of plants and fruits of pepper varieties Ermak and Cinderella were revealed. The bacteria Bacillus subtilis №2 significantly increased the yield, the number of fruits per one plant and the contents of ascorbic acid and carbohydrates in pepper fruits. In this case, the average weight of one fruit of pepper v. Ermak decreased. HP Stimulife increased the pepper yield due to increasing the mean mass of one fruit in both pepper varieties. Joint used of HP Stimulife and bacteria Bacillus subtilis №2 led to an intensification of the production process of plants compared to the experiment variants, in which HP Stimulife was used alone. The yield of sweet pepper Ermak and Cinderella increased by 10-45%, the maturation period of fruits was reduced by 10-14 days, the content of ascorbic acid increased by 25%, sugar content increased to 26%. The expediency of the joint application of HP Stimulife and bacteria Bacillus subtilis №2 in the cultivation of sweet pepper under controlled conditions is substantiated.

scholarly journals Commercial formulations of Bacillus spp. for sugarcane pineapple disease control and growth promotion

2018 ◽  
Vol 53 (12) ◽  
pp. 1311-1319
Author(s):  
Fabio Brandi ◽  
Daniel Winter Heck ◽  
Thiago Costa Ferreira ◽  
Wagner Bettiol
Keyword(s):  
Bacillus Subtilis ◽  
Plant Growth ◽  
Mycelial Growth ◽  
Bacillus Pumilus ◽  
Growth Promotion ◽  
Variable Number ◽  
Zone Of Inhibition ◽  
Field Assay ◽  
Bacillus Spp ◽  
Petri Dishes

Abstract: The objective of this work was to evaluate the commercial formulations of Bacillus subtilis QST-713 and Bacillus pumilus QST-2808 on mycelial growth inhibition of Thielaviopsis paradoxa, for the control of the pineapple disease and growth promotion in sugarcane. The inhibition of mycelial growth was evaluated in paired culture tests. Bacillus isolates were transferred to Petri dishes 48 hours before the pathogen, and the zone of inhibition was determined. The direct effect of the autoclaved commercial formulations at 0, 0.001, 0.01, 0.1, 1.0, and 10.0% on the inhibition of pathogen mycelial growth was evaluated. Bacillus spp. potential in controlling the disease and promoting plant growth was evaluated in assays on plant development and disease severity, both under controlled conditions and in the field. Bacillus isolates inhibited pathogen mycelial growth; however, the isolates did not control the disease effectively in the growth chamber and in the field. In the field assay without infestation by the pathogen, all treatments with biocontrol agents and fungicide increased the yield of cane stalks and sugar per hectare, compared with the control. In the assay with infestation by the pathogen, the B. pumilus-based product (2.0 L ha-1) and fungicide differed from the control only for the variable number of tillers.

scholarly journals Draft Genome Sequence ofBacillus subtilis2C-9B, a Strain with Biocontrol Potential against Chili Pepper Root Pathogens and Tolerance to Pb and Zn

2018 ◽  
Vol 6 (3) ◽  
Author(s):  
Claudia Y. Muñoz-Moreno ◽  
Yumiko De La Cruz-Rodríguez ◽  
Julio Vega-Arreguín ◽  
Miguel Alvarado-Rodríguez ◽  
José Manuel Gómez-Soto ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Plant Growth ◽  
Capsicum Annuum ◽  
Genome Sequence ◽  
Plant Growth Promotion ◽  
Root Rot ◽  
Growth Promotion ◽  
Draft Genome ◽  
Root Pathogens ◽  
Biocontrol Potential

ABSTRACTBacillus subtilis2C-9B, obtained from the rhizosphere of wild grass, exhibits inhibition against root rot causal pathogens inCapsicum annuum, Pb and Zn tolerance, and plant growth promotion in medium supplemented with Pb. The genome ofB. subtilis2C-9B was sequenced and the draft genome assembled, with a length of 4,215,855 bp and 4,723 coding genes.

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