First look on paecilomyces lilacinus
Paecilomyces lilacinus is an inhabiting bacteria in many roots in soil. Soil-inhabiting bacteria refers to parasites that live on soil or diseased plant residues in winter, have strong saprogency, and can survive in the soil for a long time. Paecilomyces lilacinus has been proven to be effective against many kinds of nematodes, including root-knot nematodes and cyst nematodes.
Benefits of paecilomyces lilacinus
Control effects against various nematodes
The hosts include root-knot nematodes, cyst nematodes, kidney-shaped nematodes, puncture (half-puncture) nematodes, golden nematodes, and heterologous nematodes.
It is the most promising biocontrol agent. The bacteria can adapt to different climatic conditions, so it has a high parasitic rate for nematode eggs, which can effectively control the number of soil nematodes and significantly reduce damage. Therefore, it has been widely used in production practice.
Nowadays, It is used by nematologists from nearly 70 countries around the world to control root nematodes, cyst nematodes, and other plant-parasitic nematodes and achieved good results.
Low requirements for nutrient conditions
Paecilomyces lilacinensis as a biocontrol organism, has low requirements for nutrient conditions. It not only grows on a variety of conventional media but also can be used in different kinds of natural substrates such as agricultural and sideline products waste, waste residue, and plant leaves or plant extracts.
It can grow and produce a large number of spores, so it facilitates large-scale industrial fermentation production, it can be made into solid or liquid microbial agents for root application, seed dressing, or spraying.
Therefore, the utilization of Paecilomyces lilacinus in the prevention and control of parasitic nematodes has been studied at home and abroad in recent years.
China also uses liquid and solid fermentation technologies to produce commercial preparations. The control effect of soybean cyst nematode and southern root-knot nematode was significant in Heilongjiang, Yunnan, and Jiangsu. They screened for the development of high-quality strains of Paecilomyces lilacinus to produce commercial preparations.
Reduce the use of pesticides
Nowadays, the most widely used organic pesticides in China, especially organophosphorus pesticides, have become serious environmental pollutants. We can use paecilomyces lilacinus as an effective biocontrol bacteria and further study it as an effective treatment for pesticides and sewage treatment.
Produce growth enzymes
Paecilomyces lilacinensis can produce a variety of functional enzymes like chitinase, cell lyase, glucanase, and serine protease.
Especially, chitinase is a recently discovered enzyme and it exists problems of catalyze the characteristics and molecular structure that need to be explored, particularly the application of chitosanase to control plant pathogenic bacteria will have an extensive prospect. The domestic research in this area is less, and it needs to strengthen its research and development.
For reference only.