A new take on organelle‐mediated stress sensing in plants

Dopp, Isaac; Yang, Xiaodong; Mackenzie, Sally A.

doi:10.1111/nph.17333

Cited by 24 publications

(28 citation statements)

References 63 publications

(74 reference statements)

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“…Even though the chloroplast genome is typically far smaller than most plant nuclear genomes, chloroplasts play a crucial role in plant survival, adaptation, and evolution ( Wicke et al, 2011 ; Gao et al, 2019 ; Zhao C. et al, 2019 ; Dopp et al, 2021 ). In angiosperms, chloroplast genomes typically exhibit a conserved quadripartite structure, which includes two inverted repeat regions (IRs), a small single copy (SSC) region, and a large single copy (LSC) region ( Shinozaki et al, 1986 ), as well as a relatively conserved set of genes, which can be categorized according to their involvement in photosynthesis, transcription, translation, and biosynthesis ( Sassenrath-Cole, 1998 ).…”

Section: Introductionmentioning

confidence: 99%

Chloroplast Genome Evolution in Four Montane Zingiberaceae Taxa in China

Yang,

Fu,

et al. 2022

Front. Plant Sci.

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Chloroplasts are critical to plant survival and adaptive evolution. The comparison of chloroplast genomes could provide insight into the adaptive evolution of closely related species. To identify potential adaptive evolution in the chloroplast genomes of four montane Zingiberaceae taxa (Cautleya, Roscoea, Rhynchanthus, and Pommereschea) that inhabit distinct habitats in the mountains of Yunnan, China, the nucleotide sequences of 13 complete chloroplast genomes, including five newly sequenced species, were characterized and compared. The five newly sequenced chloroplast genomes (162,878–163,831 bp) possessed typical quadripartite structures, which included a large single copy (LSC) region, a small single copy (SSC) region, and a pair of inverted repeat regions (IRa and IRb), and even though the structure was highly conserved among the 13 taxa, one of the rps19 genes was absent in Cautleya, possibly due to expansion of the LSC region. Positive selection of rpoA and ycf2 suggests that these montane species have experienced adaptive evolution to habitats with different sunlight intensities and that adaptation related to the chloroplast genome has played an important role in the evolution of Zingiberaceae taxa.

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Section: Introductionmentioning

confidence: 99%

Chloroplast Genome Evolution in Four Montane Zingiberaceae Taxa in China

Yang,

Fu,

et al. 2022

Front. Plant Sci.

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“…Chloroplasts, derived from photosynthetic bacteria, play critical roles in the survival, adaptation, and evolution of plants ( Wicke et al, 2011 ; Zhao et al, 2019 ; Dopp et al, 2021 ). Although the chloroplast (cp) genomes are much smaller than most nuclear genomes, they encode essential proteins related to photosynthesis, fixation of carbon and nitrogen, and biosynthesis of starch, pigments, fatty acids, and amino acids ( Howe et al, 2003 ; Wicke et al, 2011 ; Daniell et al, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Complete Chloroplast Genomes Provide Insights Into Evolution and Phylogeny of Campylotropis (Fabaceae)

et al. 2022

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The genus Campylotropis Bunge (Desmodieae, Papilionoideae) comprises about 37 species distributed in temperate and tropical Asia. Despite the great potential in soil conservation, horticulture, and medicine usage, little is known about the evolutionary history and phylogenetic relationships of Campylotropis due to insufficient genetic resources. Here, we sequenced and assembled 21 complete chloroplast genomes of Campylotropis species. In combination with the previously published chloroplast genomes of C. macrocarpa and closely related species, we conducted comparative genomics and phylogenomic analysis on these data. Comparative analysis of the genome size, structure, expansion and contraction of inverted repeat (IR) boundaries, number of genes, GC content, and pattern of simple sequence repeats (SSRs) revealed high similarities among the Campylotropis chloroplast genomes. The activities of long sequence repeats contributed to the variation in genome size and gene content in Campylotropis chloroplast genomes. The Campylotropis chloroplast genomes showed moderate sequence variation, and 13 highly variable regions were identified for species identification and further phylogenetic studies. We also reported one more case of matK pseudogene in the legume family. The phylogenetic analysis confirmed the monophyly of Campylotropis and the sister relationship between Lespedeza and Kummerowia, the latter two genera were then sister to Campylotropis. The intrageneric relationships of Campylotropis based on genomic scale data were firstly reported in this study. The two positively selected genes (atpF and rps19) and eight fast-evolving genes identified in this study may help us to understand the adaptation of Campylotropis species. Overall, this study enhances our understanding of the chloroplast genome evolution and phylogenetic relationships of Campylotropis.

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“…Energy production, storage, and management in plant cells are governed by diverse mechanisms concurring to the plant life processes in all possible environmental conditions. Flexibility of energy regulatory systems in plants relies on the ability of plants to modulate the functions of chloroplasts and mitochondria [ 1 , 2 , 3 ]. The ability of chloroplasts to absorb the light energy has a significant effect on the photosynthetic efficiency of plants [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, chloroplasts also possess the ability to activate mitochondrial functions to help energy synthesis [ 17 ]. Furthermore, the mechanisms to adjust morphology and internal energy states in response to changes in environments rely on an internal capacity to sense environmental situations and to process this information [ 2 ]. Recent studies suggest that energy-producing sources, chloroplasts, and mitochondria might be tightly linked to the mechanisms that sense environmental changes [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the mechanisms to adjust morphology and internal energy states in response to changes in environments rely on an internal capacity to sense environmental situations and to process this information [ 2 ]. Recent studies suggest that energy-producing sources, chloroplasts, and mitochondria might be tightly linked to the mechanisms that sense environmental changes [ 2 ]. It was also demonstrated that the functions of the chloroplasts and mitochondria are integrated with those of other cellular components under environmental stresses [ 6 , 18 , 19 ], suggesting the significance of energy regulatory systems in the chloroplasts and mitochondria in the adaptation of the entire cell to a fluctuating environment.…”

Section: Introductionmentioning

confidence: 99%

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Mechanisms Regulating Energy Homeostasis in Plant Cells and Their Potential to Inspire Electrical Microgrids Models

et al. 2022

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In this paper, the main features of systems that are required to flexibly modulate energy states of plant cells in response to environmental fluctuations are surveyed and summarized. Plant cells possess multiple sources (chloroplasts and mitochondria) to produce energy that is consumed to drive many processes, as well as mechanisms that adequately provide energy to the processes with high priority depending on the conditions. Such energy-providing systems are tightly linked to sensors that monitor the status of the environment and inside the cell. In addition, plants possess the ability to efficiently store and transport energy both at the cell level and at a higher level. Furthermore, these systems can finely tune the various mechanisms of energy homeostasis in plant cells in response to the changes in environment, also assuring the plant survival under adverse environmental conditions. Electrical power systems are prone to the effects of environmental changes as well; furthermore, they are required to be increasingly resilient to the threats of extreme natural events caused, for example, by climate changes, outages, and/or external deliberate attacks. Starting from this consideration, similarities between energy-related processes in plant cells and electrical power grids are identified, and the potential of mechanisms regulating energy homeostasis in plant cells to inspire the definition of new models of flexible and resilient electrical power grids, particularly microgrids, is delineated. The main contribution of this review is surveying energy regulatory mechanisms in detail as a reference and helping readers to find useful information for their work in this research field.

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A new take on organelle‐mediated stress sensing in plants

Cited by 24 publications

References 63 publications

Chloroplast Genome Evolution in Four Montane Zingiberaceae Taxa in China

Chloroplast Genome Evolution in Four Montane Zingiberaceae Taxa in China

Complete Chloroplast Genomes Provide Insights Into Evolution and Phylogeny of Campylotropis (Fabaceae)

Mechanisms Regulating Energy Homeostasis in Plant Cells and Their Potential to Inspire Electrical Microgrids Models

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