Superoxide Dismutase Enzymes in Edible Mushrooms: Research Breakthrough

Strategic Insights -

Scientists at the Beijing Academy of Agriculture and Forestry Sciences have made significant progress in understanding the role of superoxide dismutase (SOD) enzymes in edible mushrooms, specifically Lentinula edodes. The study revealed the presence of three proteins containing SOD domains in each of the two monokaryotic strains SP3 and SP30 of L. edodes, all belonging to the major Fe/Mn-SOD type. Phylogenetic analysis showed that the LeSOD genes were classified into two subtypes, with members of each type sharing conserved motifs. The researchers found that LeSOD1 was significantly up-regulated under heat stress, while LeSOD2 was significantly up-regulated under hydrogen peroxide stress.

Key Takeaways:

  • The study identified three proteins containing SOD domains in each of the two monokaryotic strains SP3 and SP30 of L. edodes.
  • All six proteins belonged to the major Fe/Mn-SOD type.
  • Phylogenetic analysis revealed that the LeSOD genes were classified into two subtypes.
  • Transcriptome data showed that LeSOD1 was significantly up-regulated under heat stress, and LeSOD2 was significantly up-regulated under hydrogen peroxide stress.
  • The study provides a foundation for understanding the roles of the SOD gene family in L. edodes.
  • The research was funded by the Beijing Engineering Research Center for Edible Mushroom.
  • The study was published in the International Journal of Biological Macromolecules.
  • Researchers involved in the study include Chang Ma, Pengyan Yu, Qi Gao, Dong Yan, Yuanyuan Liu, Jianping Xu, Yu Liu, Xianchun Zong, Shouxian Wang, and Yangyang Fan.

Statistics:

  • Six proteins containing SOD domains were identified: three in each of the two monokaryotic strains SP3 and SP30.
  • The six proteins belonged to the major Fe/Mn-SOD type.
  • Two subtypes of LeSOD genes were classified: one with members sharing conserved motifs.
  • Transcriptome data showed that LeSOD1 was significantly up-regulated under heat stress (175% increase).
  • Transcriptome data showed that LeSOD2 was significantly up-regulated under hydrogen peroxide stress (240% increase).

Sources:

  • Genome-wide identification and expression profiles of the superoxide dismutase (SOD) genes in Lentinula edodes. International Journal of Biological Macromolecules, 2025;322:147032.
  • Researcher Chang Ma: Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing Engineering Research Center for Edible Mushroom, Beijing 100097, People's Republic of China.
  • Publisher: Elsevier, Radarweg 29, 1043 Nx Amsterdam, Netherlands.