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A Jacalin-Related Lectin Regulated the Formation of Aerial Mycelium and Fruiting Body in Flammulina velutipes

Summary

This research investigated how a specific protein (lectin) affects mushroom growth and development in the edible mushroom Flammulina velutipes. The study found that this protein plays an important role in controlling how mushrooms form and grow. Impact on everyday life: – Improved understanding of mushroom growth could lead to better cultivation methods – May help increase production efficiency of edible mushrooms – Could contribute to developing new varieties of mushrooms with desired growth characteristics – Potential applications in biotechnology and agriculture – May lead to more sustainable mushroom farming practices

Background

Lectins are non-immunoglobulin proteins widely distributed among organisms that perform various functions including defense, organ differentiation, and cell attachment. Flammulina velutipes is one of the most popular edible mushroom species globally and contains high levels of lectins with potential medicinal properties. However, the physiological roles of F. velutipes lectins in nature are not well understood.

Objective

This study aimed to characterize a jacalin-related lectin (JRL) gene from F. velutipes, designated as Fv-JRL1, and investigate its role in fruiting body formation through expression analysis and genetic manipulation.

Results

The Fv-JRL1 gene expression was upregulated 13-fold in the primordial stage compared to the mycelial stage. RNAi-silenced strains showed reduced aerial mycelium, fewer primordia, and delayed fruiting body formation. In contrast, overexpression strains exhibited increased growth rate and earlier fruiting body formation. The results demonstrated that Fv-JRL1 plays an important regulatory role in aerial mycelium and fruiting body development.

Conclusion

The jacalin-related lectin gene Fv-JRL1 in F. velutipes plays a crucial regulatory role in the formation of aerial mycelium and fruiting body development, providing new insights into the physiological functions of lectins in mushroom development.
  • Published in:International Journal of Molecular Sciences,
  • Study Type:Laboratory Research,
  • Source: 10.3390/ijms17121884
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