DOI QR코드

DOI QR Code

Effect of salt stress on the anthocyanin content and associated genes in Sorghum bicolor L.

  • Jeon, Donghyun (Department of Crop Science, Chungnam National University) ;
  • Lee, Solji (Department of Crop Science, Chungnam National University) ;
  • Choi, Sehyun (Department of Crop Science, Chungnam National University) ;
  • Seo, Sumin (Department of Crop Science, Chungnam National University) ;
  • Kim, Changsoo (Department of Crop Science, Chungnam National University)
  • 투고 : 2020.01.22
  • 심사 : 2020.02.11
  • 발행 : 2020.03.01

초록

Abiotic stress is one of the most serious problems in plant productivity because it dramatically delays plant growth and development. One of the abiotic stresses, soil salinity, has an adverse effect on plant growth, particularly in areas where irrigation is necessary like semiarid Asia and Africa. Among several physiological parameters, anthocyanin accumulation is a valuable indicator of the condition of the plant, and it tends to increase under salt stress conditions because of its protective role in such an environment. Consequently, it may be important to search for well adapted genotypes for upcoming climate changes. Anthocyanins are known to have important roles in defense against biotic and abiotic stresses, providing important functions for protecting plant cells from reactive oxygen species. In this study, we investigated the anthocyanin accumulation between two Korean sorghum genotypes, Sodamchal and Nampungchal. The two genotypes were subjected to a regulated salinity condition, and the anthocyanin contents were evaluated in both. In Nampungchal, the anthocyanin content increased with 150 mM NaCl treatment during the time course of the experiment. However, the anthocyanin content of Sodamchal decreased in the same condition. The measured values of the anthocyanin content should be useful to identify the intensity of the salt tolerance in Sorghum bicolor L. Furthermore, we studied gene expression profiling of salt stress related genes with qRT-PCR. These results suggest that Nampungchal is a more tolerant genotype to salt stress compared to Sodamchal. This information should be useful for breeding salt-resistant cultivars in sorghum.

키워드

참고문헌

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