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The Role of Chloroplast Gene Expression in Plant Responses to Environmental Stress.


ABSTRACT: Chloroplasts are plant organelles that carry out photosynthesis, produce various metabolites, and sense changes in the external environment. Given their endosymbiotic origin, chloroplasts have retained independent genomes and gene-expression machinery. Most genes from the prokaryotic ancestors of chloroplasts were transferred into the nucleus over the course of evolution. However, the importance of chloroplast gene expression in environmental stress responses have recently become more apparent. Here, we discuss the emerging roles of the distinct chloroplast gene expression processes in plant responses to environmental stresses. For example, the transcription and translation of psbA play an important role in high-light stress responses. A better understanding of the connection between chloroplast gene expression and environmental stress responses is crucial for breeding stress-tolerant crops better able to cope with the rapidly changing environment.

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC7503970 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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The Role of Chloroplast Gene Expression in Plant Responses to Environmental Stress.

Zhang Yi Y   Zhang Aihong A   Li Xiuming X   Lu Congming C  

International journal of molecular sciences 20200824 17


Chloroplasts are plant organelles that carry out photosynthesis, produce various metabolites, and sense changes in the external environment. Given their endosymbiotic origin, chloroplasts have retained independent genomes and gene-expression machinery. Most genes from the prokaryotic ancestors of chloroplasts were transferred into the nucleus over the course of evolution. However, the importance of chloroplast gene expression in environmental stress responses have recently become more apparent.  ...[more]

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