A Systematic View Exploring the Role of Chloroplasts in Plant Abiotic Stress Responses

Yoo, Yo-Han; Hong, Woo-Jong; Jung, Ki‐Hong

doi:10.1155/2019/6534745

Cited by 16 publications

(13 citation statements)

References 75 publications

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“…Research has revealed a close association between the chloroplast-related genes and high-temperature stress in the model plant rice. The expression of more than two hundred genes was upregulated in response to heat stress [49]. In a series of plant Retrograde signaling pathways refer to the communications from the plastid to the nucleus [13].…”

Section: Response To Heat Stressmentioning

confidence: 99%

Function of Chloroplasts in Plant Stress Responses

Song

Feng

Alyafei

et al. 2021

IJMS

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The chloroplast has a central position in oxygenic photosynthesis and primary metabolism. In addition to these functions, the chloroplast has recently emerged as a pivotal regulator of plant responses to abiotic and biotic stress conditions. Chloroplasts have their own independent genomes and gene-expression machinery and synthesize phytohormones and a diverse range of secondary metabolites, a significant portion of which contribute the plant response to adverse conditions. Furthermore, chloroplasts communicate with the nucleus through retrograde signaling, for instance, reactive oxygen signaling. All of the above facilitate the chloroplast’s exquisite flexibility in responding to environmental stresses. In this review, we summarize recent findings on the involvement of chloroplasts in plant regulatory responses to various abiotic and biotic stresses including heat, chilling, salinity, drought, high light environmental stress conditions, and pathogen invasions. This review will enrich the better understanding of interactions between chloroplast and environmental stresses, and will lay the foundation for genetically enhancing plant-stress acclimatization.

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Section: Response To Heat Stressmentioning

confidence: 99%

Function of Chloroplasts in Plant Stress Responses

Song

Feng

Alyafei

et al. 2021

IJMS

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“…We retrieved GO terms related to the biological process from the rice oligonucleotide array database (http://ricephylogenomics-khu.org/ROAD_old/analysis/go_enrichment.shtml, temporary page for updating) [100]. To carry out enrichment analysis, we applied threshold query number of >2, hyper p-value < 0.05, and fold enrichment value (query number/query expected number) >2, as previously reported [101,102]. The enriched GO terms were visualized using R studio software and ggplot2 R package (R studio version: 1.1.453, ggplot2 version: 3.0.0).…”

Section: Rna-seq and Analysismentioning

confidence: 99%

Rice Senescence-Induced Receptor-Like Kinase (OsSRLK) Is Involved in Phytohormone-Mediated Chlorophyll Degradation

Shin

Trang

Hong

et al. 2019

IJMS

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Chlorophyll breakdown is a vital catabolic process of leaf senescence as it allows the recycling of nitrogen and other nutrients. In the present study, we isolated rice senescence-induced receptor-like kinase (OsSRLK), whose transcription was upregulated in senescing rice leaves. The detached leaves of ossrlk mutant (ossrlk) contained more green pigment than those of the wild type (WT) during dark-induced senescence (DIS). HPLC and immunoblot assay revealed that degradation of chlorophyll and photosystem II proteins was repressed in ossrlk during DIS. Furthermore, ultrastructural analysis revealed that ossrlk leaves maintained the chloroplast structure with intact grana stacks during dark incubation; however, the retained green color and preserved chloroplast structures of ossrlk did not enhance the photosynthetic competence during age-dependent senescence in autumn. In ossrlk, the panicles per plant was increased and the spikelets per panicle were reduced, resulting in similar grain productivity between WT and ossrlk. By transcriptome analysis using RNA sequencing, genes related to phytohormone, senescence, and chlorophyll biogenesis were significantly altered in ossrlk compared to those in WT during DIS. Collectively, our findings indicate that OsSRLK may degrade chlorophyll by participating in a phytohormone-mediated pathway.

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“…The metabolites synthesized in chloroplasts protect plants from abiotic and biotic stresses, including heat, cold, drought, salt, light, and pathogens [ 346 , 347 ]. Through meta-expression analyses under abiotic stress conditions, Yoo et al [ 348 ] identified 264 cold or heat stress-responsive plastid-related genes in rice. Furthermore, the functional characterization of plastid-related genes emphasized the significance of genes for crosstalk between chloroplast development and heat stress.…”

Section: Explored Mechanisms Of Abiotic Stress Tolerance For Crop Improvementmentioning

confidence: 99%

The Adaptation and Tolerance of Major Cereals and Legumes to Important Abiotic Stresses

Rane

Singh

Kumar

et al. 2021

IJMS

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Abiotic stresses, including drought, extreme temperatures, salinity, and waterlogging, are the major constraints in crop production. These abiotic stresses are likely to be amplified by climate change with varying temporal and spatial dimensions across the globe. The knowledge about the effects of abiotic stressors on major cereal and legume crops is essential for effective management in unfavorable agro-ecologies. These crops are critical components of cropping systems and the daily diets of millions across the globe. Major cereals like rice, wheat, and maize are highly vulnerable to abiotic stresses, while many grain legumes are grown in abiotic stress-prone areas. Despite extensive investigations, abiotic stress tolerance in crop plants is not fully understood. Current insights into the abiotic stress responses of plants have shown the potential to improve crop tolerance to abiotic stresses. Studies aimed at stress tolerance mechanisms have resulted in the elucidation of traits associated with tolerance in plants, in addition to the molecular control of stress-responsive genes. Some of these studies have paved the way for new opportunities to address the molecular basis of stress responses in plants and identify novel traits and associated genes for the genetic improvement of crop plants. The present review examines the responses of crops under abiotic stresses in terms of changes in morphology, physiology, and biochemistry, focusing on major cereals and legume crops. It also explores emerging opportunities to accelerate our efforts to identify desired traits and genes associated with stress tolerance.

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A Systematic View Exploring the Role of Chloroplasts in Plant Abiotic Stress Responses

Cited by 16 publications

References 75 publications

Function of Chloroplasts in Plant Stress Responses

Function of Chloroplasts in Plant Stress Responses

Rice Senescence-Induced Receptor-Like Kinase (OsSRLK) Is Involved in Phytohormone-Mediated Chlorophyll Degradation

The Adaptation and Tolerance of Major Cereals and Legumes to Important Abiotic Stresses

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