10.5 Microbial Commitment of Vermicomposting
Charles Darwin depicted earthworms as the ‘unheralded soldiers of mankind’ and
Aristotle called them as the ‘digestive system of earth’, as they could process a wide
assortment of organic materials (Sinha et al. 2009). With the advent of science, a
synergy between earthworm microflora, microfauna, and soil physiochemical
parameters are viewed together as a tool of biotechnology as ‘drillosphere’ (Kostina
et al. 2011). Vermicomposting is being developed as a non-thermophilic natural
oxidation process in which toxic natural materials are converted into organic peatlike materials which comprise enriched microbial activities, high porosity, and
water-holding capacity (Pathma and Sakthivel 2012). Being a mesophilic process,
vermicompost proved to be an efficient incubator for the vast majority of microbial
biodiversity and activity in comparison to traditional thermophilic composting.
Earthworms ingest soil along with different plant growth advancing microbes such
as Pseudomonas, Rhizobium, Bacillus, Azosprillium, Azotobacter, and so
on. Alongside rhizospheric soil (Pathma et al. 2019) and on arrival of perfect
microenvironment, these bacterial isolates become functional and facilitate the
process (Sinha et al. 2009, Ganguly and Chakraborty 2018). This accumulation of
microbes animates and improves overall plant growth through solubilization of
supplements (Ravindran et al. 2008) and helps in development of different enzymatic activities such as isozymes of arylamidases (Ganguly and Chakraborty 2018)
activating nitrogen fixation and furthermore counteracting the development of
pathogenic parasite through the secretion of enzymes, specifically chitinases and
glucanases (Ravindran et al. 2008).
Recent experimental studies on microbial contribution of vermicomposting
through Vitek 2 system revealed a major role of Bacillus in upregulation of different
enzymatic activities (Ganguly and Chakraborty 2018).
The gut of a Chinese worm Eisenia foetida contains a decent measure of
expanded anaerobic N 2 -fixing microscopic organisms, for example Clostridium
butyricum, C.beijerinckii, and C.paraputrificum (Zhang et al. 2019). Furthermore,
atomic screening has uncovered the presence of α-Proteobacteria, β-Proteobacteria,
Actinobacteria, Planctomycetes, Firmicutes, and Bacteroidetes (Yasir et al. 2009)
and their path of succession along the course of composting through the usage of
PLFA investigation, DGGE (Denaturing Gradient Gel Electrophoresis), and other
PCR strategies (Fernández-Gómez et al. 2012). This expanded pace of microbial
populace alongside the ingested material has allotted the status of worm as a helpful
bio-hatchery for the productive development of microorganisms.
Another dynamic segment associated with the procedure of biodegradation and
transformation during vermicomposting is fungi. They can debase complex biomolecules and are thus applied as an apparatus for bio-remediation for a wide scope
of pollutants (Kästner and Mahro 1996). Ascomycetes and basidiomycetes were
seen as increasingly copious and enhanced in vermicompost. This might be due to
the special demolition characteristic of quick developing fungi (e.g., zygomycetes
and mitosporic organisms) which render a low competition rate and provide a
10 Eco-management of Industrial Organic Wastes Through the Modified Innovative. . .
165
Charles Darwin depicted earthworms as the ‘unheralded soldiers of mankind’ and
Aristotle called them as the ‘digestive system of earth’, as they could process a wide
assortment of organic materials (Sinha et al. 2009). With the advent of science, a
synergy between earthworm microflora, microfauna, and soil physiochemical
parameters are viewed together as a tool of biotechnology as ‘drillosphere’ (Kostina
et al. 2011). Vermicomposting is being developed as a non-thermophilic natural
oxidation process in which toxic natural materials are converted into organic peatlike materials which comprise enriched microbial activities, high porosity, and
water-holding capacity (Pathma and Sakthivel 2012). Being a mesophilic process,
vermicompost proved to be an efficient incubator for the vast majority of microbial
biodiversity and activity in comparison to traditional thermophilic composting.
Earthworms ingest soil along with different plant growth advancing microbes such
as Pseudomonas, Rhizobium, Bacillus, Azosprillium, Azotobacter, and so
on. Alongside rhizospheric soil (Pathma et al. 2019) and on arrival of perfect
microenvironment, these bacterial isolates become functional and facilitate the
process (Sinha et al. 2009, Ganguly and Chakraborty 2018). This accumulation of
microbes animates and improves overall plant growth through solubilization of
supplements (Ravindran et al. 2008) and helps in development of different enzymatic activities such as isozymes of arylamidases (Ganguly and Chakraborty 2018)
activating nitrogen fixation and furthermore counteracting the development of
pathogenic parasite through the secretion of enzymes, specifically chitinases and
glucanases (Ravindran et al. 2008).
Recent experimental studies on microbial contribution of vermicomposting
through Vitek 2 system revealed a major role of Bacillus in upregulation of different
enzymatic activities (Ganguly and Chakraborty 2018).
The gut of a Chinese worm Eisenia foetida contains a decent measure of
expanded anaerobic N 2 -fixing microscopic organisms, for example Clostridium
butyricum, C.beijerinckii, and C.paraputrificum (Zhang et al. 2019). Furthermore,
atomic screening has uncovered the presence of α-Proteobacteria, β-Proteobacteria,
Actinobacteria, Planctomycetes, Firmicutes, and Bacteroidetes (Yasir et al. 2009)
and their path of succession along the course of composting through the usage of
PLFA investigation, DGGE (Denaturing Gradient Gel Electrophoresis), and other
PCR strategies (Fernández-Gómez et al. 2012). This expanded pace of microbial
populace alongside the ingested material has allotted the status of worm as a helpful
bio-hatchery for the productive development of microorganisms.
Another dynamic segment associated with the procedure of biodegradation and
transformation during vermicomposting is fungi. They can debase complex biomolecules and are thus applied as an apparatus for bio-remediation for a wide scope
of pollutants (Kästner and Mahro 1996). Ascomycetes and basidiomycetes were
seen as increasingly copious and enhanced in vermicompost. This might be due to
the special demolition characteristic of quick developing fungi (e.g., zygomycetes
and mitosporic organisms) which render a low competition rate and provide a
10 Eco-management of Industrial Organic Wastes Through the Modified Innovative. . .
165