Overexpression of SikRbcs2 gene promotes chilling tolerance of tomato by improving photosynthetic enzyme activity, reducing oxidative damage, and stabilizing cell membrane structure.

ABSTRACT: Red blood cell is a small subunit encoding 1, 5-ribulose bisphosphate carboxylase/ oxygenase (Rubisco). It could control the catalytic activity of Rubisco and play an important role in plant photosynthesis. SikRbcs2, a small subunit of Rubisco, is cloned from Saussurea involucrate. It has a strong low-temperature photosynthetic and photorespiration ability, but its mechanism in cold tolerance remains to be unknown. The results of quantitative PCR showed that SikRbcS2 gene could be induced by low-temperature, osmosis, and salt stress. Its expression was increased with the decrease of temperature, which was consistent with the habitat of Saussurea involucrata. Overexpression of Sikrbcs2 could significantly increase the mRNA expressions of SlrbcL and SlRCA i

SUBMITTER: Zhang L 

PROVIDER: S-EPMC7382113 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature