05/22/2019 / By Michelle Simmons
Do you grow your own produce? If you do, then you might want to help nature along by introducing good bacteria to your plants that can boost their growth. But first, you will need a good carrier for the bacteria. Researchers from Chungbuk National University in South Korea discovered that chitosan, a polysaccharide obtained from the exoskeleton of shellfish, can be used as a carrier for plant growth-boosting bacteria.
In their study, the researchers examined chitosan and its ability to act as a carrier for a promising plant growth-promoting bacteria known as Methylobacterium oryzae CBMB20. They put the bacteria in different chitosan formulations, such as wet chitosan and dry chitosan, and compared its effectiveness with alginate’s.
Chitosan formulations exhibited better entrapment efficiency and degradability resistance than alginate formulations. The researchers also found that 80 percent of the bacteria survived in wet chitosan even after 90 days of storage at 4 degrees Celsius. In addition, the spermosphere survival of bacteria in both dry and wet chitosan formulations applied to soils was high even after 21 days of storage under greenhouse conditions.
The researchers also reported that alginate formulations degraded fully, while chitosan formulations only degraded partially. This demonstrated chitosan’s ability to support the survival of bacteria in soil. Moreover, tomato plants treated with wet chitosan formulation exhibited increases in shoot and root length compared with plants inoculated with alginate fomulation.
Based on these findings, the researchers concluded that chitosan can be used as an effective carrier for bacteria that boost plant growth. The results of their study were published in the journal Archives of Agronomy and Soil Science.
An article published in the journal Marine Drugs recently reviewed studies that focused on the different applications of chitosan. This polysaccharide can be used for:
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Tagged Under: alginate, bacteria, bacteria carrier, beneficial bacteria, biodegradable, chitosan, crop, crop growth, farming, food science, gardening, good bacteria, green living, growth-promoting bacteria, home gardening, plant growth, research
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