scholarly journals Microbial Consortium Promotes Growth of Zinnia and Balsam Seedlings Raised in pro trays

2020 ◽  
pp. 04-08
Author(s):  
D. Sukeerthi ◽  
Nachu Nikhil Sai ◽  
R. Ashwin ◽  
D. J. Bagyaraj
Keyword(s):  
Plant Growth ◽  
Microbial Consortium ◽  
Growth Parameters ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Dry Weight ◽  
Flowering Plants ◽  
Volume Index ◽  
Plant Growth Promoting ◽  
Bacillus Sonorensis

Zinnia and Balsam are flowering plants with high economic importance in floriculture. Inoculation of the planting medium with a beneficial microbial consortium is an innovative approach to produce quality and healthy seedlings in floriculture. In the present study the influence of a microbial consortium of the arbuscular mycorrhizal fungus (AMF) Funneliformis mosseae and a plant growth promoting rhizobacterium (PGPR) Bacillus sonorensis on flowering plants Zinnia and Balsam in pro-trays under poly house conditions was investigated. Estimation of various plant growth parameters such as plant height, stem diameter, bio-volume index, vigour index, plant strength, fresh weight, dry weight and nutrient uptake was carried out to analyse the ability of the consortium to improve seedling growth. Microbial parameters such as mycorrhizal root colonization and spore count, and population of PGPR in substrate was also studied. The results suggested that inoculating the substrate in pro trays before sowing the seeds with the consortium increased plant growth significantly compared to the uninoculated plants.

scholarly journals Influence of Microbial Consortium in the Production of China Aster and Gaillardia Seedlings

2021 ◽  
Vol 28 (2) ◽  
pp. 21-28
Author(s):  
Marysovia Fernandez ◽  
Nikhil Sai Nachu ◽  
Ashwin Revanna ◽  
Joseph Davis Bagyaraj
Keyword(s):  
Plant Growth ◽  
Microbial Consortium ◽  
Growth Parameters ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Dry Weight ◽  
Germination Percentage ◽  
Plant Growth Promoting ◽  
China Aster ◽  
Bacillus Sonorensis

AbstractChina aster and gaillardia are flowering plants with high economic importance in floriculture. In the present investigation, response of China aster and gaillardia seedlings to inoculation with the arbuscular mycorrhizal fungus Funneliformis mosseae + the plant growth-promoting rhizobacterium Bacillus sonorensis was studied by growing in multipots (pro trays). The germination percentage and plant growth parameters: length of shoots, roots and whole seedlings, stem diameter, biovolume index, plant strength, vigor index, dry weight and nutrient uptake, were analyzed 60 days after sowing. The microbial parameters, mycorrhizal root colonization and spore count, and the population of B. sonorensis in the substrate were also determined. The results brought out that growth of inoculated seedlings was significantly improved as compared to uninoculated seedlings. Based on the plant growth and microbial parameters studied, it was concluded that inoculating the substrate in pro trays with the microbial consortium results in producing vigorously growing seedlings.

scholarly journals Co-Inoculation of an Endophytic and Arbuscular Mycorrhizal Fungus Improve Growth and Yield of Helianthus tuberosus L. under Field Condition

2021 ◽  
Vol 7 (11) ◽  
pp. 976
Author(s):  
Saranya Khaekhum ◽  
Jindarat Ekprasert ◽  
Thanapat Suebrasri ◽  
Wasan Seemakram ◽  
Wiyada Mongkolthanaruk ◽  
...  
Keyword(s):  
Plant Growth ◽  
Mycorrhizal Fungi ◽  
Growth Parameters ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Chemical Fertilizer ◽  
Growth And Yield ◽  
Helianthus Tuberosus ◽  
Full Dose ◽  
Plant Growth Promoting

Endophytic fungi (EPF) and arbuscular mycorrhizal fungi (AMF) symbioses can promote the growth and productivity of several types of plants. This work aimed to investigate the effect of co-inoculation of an EPF Exserohilum rostratum NMS1.5 and an AMF Glomus etunicatum UDCN52867 g.5 on the growth and yields of sunchoke (Helianthus tuberosus L.) compared to the effects of full–dose and half–dose chemical fertilizer (15–15–15) under field conditions. Several plant growth parameters of the co–inoculated plants were significantly higher than the other treatments. Remarkably, such an effect was relatively equal to that of the full–dose chemical fertilizers. Moreover, the co-inoculation of EPF and AMF significantly improved the tuber yield production, even better than the use of a chemical fertilizer. This is the first report to show that plant growth promoting effects of the co–inoculation of EPF and AMF were exceptionally greater than those of the chemical fertilizer. Therefore, our EPF and AMF could potentially be used as a biofertilizer for promoting the growth and yield of sunchoke in the fields.

scholarly journals Microbial Consortium of PGPR, Rhizobia and Arbuscular Mycorrhizal Fungus Makes Pea Mutant SGECdt Comparable with Indian Mustard in Cadmium Tolerance and Accumulation

Plants ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 975 ◽  
Author(s):  
Andrey A. Belimov ◽  
Alexander I. Shaposhnikov ◽  
Tatiana S. Azarova ◽  
Natalia M. Makarova ◽  
Vera I. Safronova ◽  
...  
Keyword(s):  
Plant Growth ◽  
Rhizobium Leguminosarum ◽  
Microbial Consortium ◽  
Arbuscular Mycorrhizal Fungus ◽  
Mycorrhizal Fungus ◽  
Indian Mustard ◽  
Arbuscular Mycorrhizal ◽  
Shoot Biomass ◽  
Acetylene Reduction Activity ◽  
Nodule Bacterium

Cadmium (Cd) is one of the most widespread and toxic soil pollutants that inhibits plant growth and microbial activity. Polluted soils can be remediated using plants that either accumulate metals (phytoextraction) or convert them to biologically inaccessible forms (phytostabilization). The phytoremediation potential of a symbiotic system comprising the Cd-tolerant pea (Pisum sativum L.) mutant SGECdt and selected Cd-tolerant microorganisms, such as plant growth-promoting rhizobacterium Variovorax paradoxus 5C-2, nodule bacterium Rhizobium leguminosarum bv. viciae RCAM1066, and arbuscular mycorrhizal fungus Glomus sp. 1Fo, was evaluated in comparison with wild-type pea SGE and the Cd-accumulating plant Indian mustard (Brassica juncea L. Czern.) VIR263. Plants were grown in pots in sterilized uncontaminated or Cd-supplemented (15 mg Cd kg−1) soil and inoculated or not with the microbial consortium. Cadmium significantly inhibited growth of uninoculated and particularly inoculated SGE plants, but had no effect on SGECdt and decreased shoot biomass of B. juncea. Inoculation with the microbial consortium more than doubled pea biomass (both genotypes) irrespective of Cd contamination, but had little effect on B. juncea biomass. Cadmium decreased nodule number and acetylene reduction activity of SGE by 5.6 and 10.8 times, whereas this decrease in SGECdt was 2.1 and 2.8 times only, and the frequency of mycorrhizal structures decreased only in SGE roots. Inoculation decreased shoot Cd concentration and increased seed Cd concentration of both pea genotypes, but had little effect on Cd concentration of B. juncea. Inoculation also significantly increased concentration and/or accumulation of nutrients (Ca, Fe, K, Mg, Mn, N, P, S, and Zn) by Cd-treated pea plants, particularly by the SGECdt mutant. Shoot Cd concentration of SGECdt was twice that of SGE, and the inoculated SGECdt had approximately similar Cd accumulation capacity as compared with B. juncea. Thus, plant–microbe systems based on Cd-tolerant micro-symbionts and plant genotypes offer considerable opportunities to increase plant HM tolerance and accumulation.

Sign in / Sign up

Export Citation Format

Share Document