Several studies on bioinoculants have been conducted in order to address
the most serious threat to our nation's security, namely food security. This problem can
be solved by re-evaluating our practises and skills in order to increase food production
through the use of sustainable farming methods. Several microorganisms can be found
in rhizospheric soils in nature. These organisms solubilize nutrients and facilitate
nutrient uptake by plant roots, promoting plant growth through natural processes such
as nutrient cycling and absorption, stress tolerance, immunity induction, and so on.
Microbes include mycorrhizae, cyanobacteria, bacteria, actinomycetes, and others.
Plant growth-promoting microorganisms rely heavily on mycorrhizae (PGPM). So far,
seven different types of mycorrhizae have been identified. The arbuscular and
ectomycorrhizal fungi are the most numerous and widespread mycorrhizae. Arbuscular
mycorrhizae (AM) fungi are important in improving soil physicochemical properties
and interacting with other PGPM such as phosphate solubilizing bacteria, nitrogen
fixers, and so on. Chemical fertilisers used in agricultural fields reduce AM and its
potency. Because these organisms cannot be cultured, PCR techniques can be used to
obtain sufficient amounts of DNA from them. The focus of this chapter has been on
arbuscular mycorrhizae (AM) fungi. An attempt was made to study AM fungi
colonisation using PCR in order to better understand its efficiency. Such research
contributes to the goal of transforming food insecurity into food security.