Cold acclimation of SnRK2.2 kinases mutant Chlamydomonas reinhardtii

ÜNAL D., Cekic F. O.

Phycological Research, cilt.67, sa.3, ss.202-207, 2019 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 67 Sayı: 3
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1111/pre.12371
  • Dergi Adı: Phycological Research
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.202-207
  • Anahtar Kelimeler: cold stress, plant-specific serine/threonine kinases, Rubisco
  • Bilecik Şeyh Edebali Üniversitesi Adresli: Evet

Özet

© 2019 Japanese Society of PhycologyIn Chlamydomonas reinhardtii, plant-specific serine/threonine kinases (SnRK2 kinases) play a central role in sulfur metabolism. However, their role in environmental stress has not been clearly understood. Cold stress is one of the most important factors that limit the growth, productivity, and development of photosynthetic organisms. In this report, the effect of cold stress on some physiological parameters were investigated in SnRK2.2 mutant and wild type C. reinhardtii culture. Our results showed that cold stress had significantly enhanced lipid peroxidation rate in wild type, while no significant change was observed in SnRK2.2 mutant culture. Our data also indicated a decline in Rubisco protein amount of wild type culture under low temperature exposure. Low temperature reduced glutathione reductase (GR) activity in the wild type, while GR activity was enhanced in SnRK2.2 mutant. This result indicated the potential of SnRK2 kinase in cold acclimation process.