COR15B expression is affected by chloroplast functionality and its role in response to salt stress in Arabidopsis thaliana

Liu, D.; Hou, Ling; Li, W. C.; Cheng, Jie; Fu, Yan

doi:10.1007/s10535-014-0451-4

Cited by 4 publications

(3 citation statements)

References 56 publications

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“…Moreover, a gene encoding stroma-localized cold-responsive (COR) protein, COR15B , was up-regulated under salt stress in an ABA-dependent manner. Therefore, COR15B was proposed to be a potential member in the ABA signaling regulatory network in the Arabidopsis response to salt stress [ 57 ].…”

Section: Aba and Kinase Signaling Pathwaysmentioning

confidence: 99%

Salinity Response in Chloroplasts: Insights from Gene Characterization

Suo

Zhao

David

et al. 2017

IJMS

107

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Salinity is a severe abiotic stress limiting agricultural yield and productivity. Plants have evolved various strategies to cope with salt stress. Chloroplasts are important photosynthesis organelles, which are sensitive to salinity. An understanding of molecular mechanisms in chloroplast tolerance to salinity is of great importance for genetic modification and plant breeding. Previous studies have characterized more than 53 salt-responsive genes encoding important chloroplast-localized proteins, which imply multiple vital pathways in chloroplasts in response to salt stress, such as thylakoid membrane organization, the modulation of photosystem II (PS II) activity, carbon dioxide (CO2) assimilation, photorespiration, reactive oxygen species (ROS) scavenging, osmotic and ion homeostasis, abscisic acid (ABA) biosynthesis and signaling, and gene expression regulation, as well as protein synthesis and turnover. This review presents an overview of salt response in chloroplasts revealed by gene characterization efforts.

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Section: Aba and Kinase Signaling Pathwaysmentioning

confidence: 99%

Salinity Response in Chloroplasts: Insights from Gene Characterization

Suo

Zhao

David

et al. 2017

IJMS

107

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“…Changes in plastid gene expression (PGE) and the photosynthetic electron transport chain (PET) also trigger chloroplast-to-nucleus retrograde signalling 19 21 23 . Several recent studies have investigated the role of retrograde signalling in regulating the expression of nuclear genes during several stresses, including high light, drought, low temperature, heat, and excess ammonium 24 25 26 27 28 29 . Therefore, the disruption of the functional and developmental state of the chloroplast by endogenous factors or exogenous environmental cues generates a wide variety of chloroplast retrograde signals that regulate the expression of many nuclear genes encoding chloroplast-localized proteins.…”

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confidence: 99%

The novel protein DELAYED PALE-GREENING1 is required for early chloroplast biogenesis in Arabidopsis thaliana

Liu

Cheng

2016

Sci Rep

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Chloroplast biogenesis is one of the most important subjects in plant biology. In this study, an Arabidopsis early chloroplast biogenesis mutant with a delayed pale-greening phenotype (dpg1) was isolated from a T-DNA insertion mutant collection. Both cotyledons and true leaves of dpg1 mutants were initially albino but gradually became pale green as the plant matured. Transmission electron microscopic observations revealed that the mutant displayed a delayed proplastid-to-chloroplast transition. Sequence and transcription analyses showed that AtDPG1 encodes a putatively chloroplast-localized protein containing three predicted transmembrane helices and that its expression depends on both light and developmental status. GUS staining for AtDPG1::GUS transgenic lines showed that this gene was widely expressed throughout the plant and that higher expression levels were predominantly found in green tissues during the early stages of Arabidopsis seedling development. Furthermore, quantitative real-time RT-PCR analyses revealed that a number of chloroplast- and nuclear-encoded genes involved in chlorophyll biosynthesis, photosynthesis and chloroplast development were substantially down-regulated in the dpg1 mutant. These data indicate that AtDPG1 plays an essential role in early chloroplast biogenesis, and its absence triggers chloroplast-to-nucleus retrograde signalling, which ultimately down-regulates the expression of nuclear genes encoding chloroplast-localized proteins.

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“…In superior salt-tolerant lines of chickpea, tolerance was accredited to the salt-mediated increase of JA biosynthesis (Xu et al 2016). Cold-regulated (COR) protein was upregulated in Arabidopsis under salt, a potential member in the ABA-dependent salt stress signalling network (Liu et al 2014). Maturase K, common to all land plant chloroplasts gets activated under salt stress via dephosphorylation (Zörb et al 2010) and plays a crucial role in primary mRNA processing/splicing (Xu et al 2016).…”

Section: Improved Stromal Protein Levels and Activitymentioning

confidence: 99%

Photosynthetic machinery under salinity stress: Trepidations and adaptive mechanisms

Krishna¹,

Pandesha²,

Sathee³

et al. 2023

Photosynt.

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Chloroplasts and photosynthesis are the physiologically fateful arenas of salinity stress. Morphological and anatomical alterations in the leaf tissue, ultrastructural changes in the chloroplast, compromise in the integrity of the three-layered chloroplast membrane system, and defects in the light and dark reactions during the osmotic, ionic, and oxidative phases of salt stress are conversed in detail to bring the salinity-mediated physiological alterations in the chloroplast on to a single platform. Chloroplasts of salt-tolerant plants have evolved highly regulated salt-responsive pathways. Thylakoid membrane remodeling, ion homeostasis, osmoprotection, upregulation of chloroplast membrane and stromal proteins, chloroplast ROS scavenging, efficient retrograde signalling, and differential gene and metabolite abundance are the key attributes of optimal photosynthesis in tolerant species. This review throws light into the comparative mechanism of chloroplast and photosynthetic response to salinity in sensitive and tolerant plant species. Highlights• Photosynthesis is highly sensitive to salinity stress • An interplay of physiological and molecular determinants exists in the sensitivity of chloroplast to salinity stress • The major tolerance and adaptive mechanisms to salinity are chloroplast membrane remodeling, ion homeostasis, and retrograde signalling

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COR15B expression is affected by chloroplast functionality and its role in response to salt stress in Arabidopsis thaliana

Cited by 4 publications

References 56 publications

Salinity Response in Chloroplasts: Insights from Gene Characterization

Salinity Response in Chloroplasts: Insights from Gene Characterization

The novel protein DELAYED PALE-GREENING1 is required for early chloroplast biogenesis in Arabidopsis thaliana

Photosynthetic machinery under salinity stress: Trepidations and adaptive mechanisms

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