The tomato WV gene encoding a thioredoxin protein is essential for chloroplast development at low temperature and high light intensity.

ABSTRACT:

Background

Chloroplast biogenesis, a complex process in higher plants, is the key to photoautotrophic growth in plants. White virescent (wv) mutants have been used to unfold the molecular mechanisms underlying the regulation of chloroplast development and chloroplast gene expression in plants. However, most of genes controlling white virescent phenotype still remain unknown.

Results

In this study, we identified a temperature- and light intensity-sensitive mutant, named as wv. The content of chlorophyll was dramatically decreased in the immature leaves of wv mutant under the conditions of low temperature and high-light intensity. TEM observation showed that the chloroplasts in the young leaves of wv mutant lacked an organized thylakoid membrane, whereas crescent-shaped chloro

SUBMITTER: Gao S 

PROVIDER: S-EPMC6585109 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature