Structural and Functional Heat Stress Responses of Chloroplasts of Arabidopsis thaliana

Paul, Puneet; Mesihovic, Anida; Chaturvedi, Palak; Ghatak, Arindam; Weckwerth, Wolfram; Böhmer, Maik; Schleiff, Enrico

doi:10.3390/genes11060650

Cited by 20 publications

(13 citation statements)

References 97 publications

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“…Thylakoid membranes are highly sensitive to heat stress and these can sense heat as a cellular thermometer inside chloroplasts (Horváth et al 1998). Loss of membrane integrity, swelling of grana, decreased membrane stacking, and abnormal organization of thylakoids have been reported under heat stress in various plants (Downs et al 2013;Yuan et al 2017;Balfagón et al 2019;Paul et al 2020). Moreover, heat stress induces the redistribution and randomization of chlorophyll-protein complexes of both PSII and PSI (Ivanov et al 2017;Hu et al 2020).…”

Section: Involvement Of Ethylene In the Regulation Of Photosynthetic Components Under Heat Stressmentioning

confidence: 99%

“…Prolonged exposure to heat stress disrupts membrane integrity and thus affects cellular functions (Xu et al 2006;Asthir 2015). Moreover, heat stress also results in loss of photosynthetic pigments and efficiency, abnormal organization of thylakoids, disruption of the electron transport chains in mitochondria and chloroplasts, decreased production of photo-assimilates, and depletion of carbohydrate reserves (Khan et al 2013;Tan et al 2011;Cortleven et al 2019;Paul et al 2020). Furthermore, inhibition of carbohydrate metabolism induced by heat stress results in impairment of plant reproductive events such as stamen and pollen development, ovule fertilization, fruit set, seed development, and loss of grain yield in a wide variety of crops (Kotak et al 2007;Wahid et al 2007;Schauberger et al 2017;Ozga et al 2017;Liu et al 2019).…”

Section: Introductionmentioning

confidence: 99%

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Ethylene involvement in the regulation of heat stress tolerance in plants

et al. 2021

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Because of the rise in global temperature, heat stress has become a major concern for crop production. Heat stress deteriorates plant productivity and alters phenological and physiological responses that aid in precise monitoring and sensing of mildto-severe transient heat stress. Plants have evolved several sophisticated mechanisms including hormone-signaling pathways to sense heat stimuli and acquire heat stress tolerance. In response to heat stress, ethylene, a gaseous hormone, is produced which is indispensable for plant growth and development and tolerance to various abiotic stresses including heat stress. The manipulation of ethylene in developing heat stress tolerance targeting ethylene biosynthesis and signaling pathways has brought promising out comes. Conversely increased ethylene biosynthesis and signaling seem to exhibit inhibitory effects in plant growth responses from primitive to maturity stages. This review mainly focuses on the recent studies of ethylene involvement in plant responses to heat stress and its functional regulation, and molecular mechanism underlying the plant responses in the mitigation of heat-induced damages. Furthermore, this review also describes the crosstalk between ethylene and other signaling molecules under heat stress and approaches to improve heat stress tolerance in plants.

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Section: Involvement Of Ethylene In the Regulation Of Photosynthetic Components Under Heat Stressmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ethylene involvement in the regulation of heat stress tolerance in plants

et al. 2021

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“…As we know, chloroplast is a central player for steady PG&D and its survival; moreover, the performance of chloroplast is closely associated with the cell’s general status when facing heat stress. In order to explain the vital role of chloroplasts, Paul et al [ 78 ] examined chloroplast morphology and proteome composition under single and repetitive heat stress periods in Arabidopsis that were prolonged until two weeks. They depicted that in a single heat stress condition, a significant alteration was observed compared to repetitive ones where adaptive behavior was noticed.…”

Section: Membrane Transporters and Abiotic Stressesmentioning

confidence: 99%

The Role of Membrane Transporters in Plant Growth and Development, and Abiotic Stress Tolerance

Gill

Ahmar

Ali

et al. 2021

IJMS

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The proteins of membrane transporters (MTs) are embedded within membrane-bounded organelles and are the prime targets for improvements in the efficiency of water and nutrient transportation. Their function is to maintain cellular homeostasis by controlling ionic movements across cellular channels from roots to upper plant parts, xylem loading and remobilization of sugar molecules from photosynthesis tissues in the leaf (source) to roots, stem and seeds (sink) via phloem loading. The plant’s entire source-to-sink relationship is regulated by multiple transporting proteins in a highly sophisticated manner and driven based on different stages of plant growth and development (PG&D) and environmental changes. The MTs play a pivotal role in PG&D in terms of increased plant height, branches/tiller numbers, enhanced numbers, length and filled panicles per plant, seed yield and grain quality. Dynamic climatic changes disturbed ionic balance (salt, drought and heavy metals) and sugar supply (cold and heat stress) in plants. Due to poor selectivity, some of the MTs also uptake toxic elements in roots negatively impact PG&D and are later on also exported to upper parts where they deteriorate grain quality. As an adaptive strategy, in response to salt and heavy metals, plants activate plasma membranes and vacuolar membrane-localized MTs that export toxic elements into vacuole and also translocate in the root’s tips and shoot. However, in case of drought, cold and heat stresses, MTs increased water and sugar supplies to all organs. In this review, we mainly review recent literature from Arabidopsis, halophytes and major field crops such as rice, wheat, maize and oilseed rape in order to argue the global role of MTs in PG&D, and abiotic stress tolerance. We also discussed gene expression level changes and genomic variations within a species as well as within a family in response to developmental and environmental cues.

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“…As we know chloroplast is a central player for steady PG&D and its survival as well as performance of chloroplast is closely associated with cell general status while facing heat stress. To explain the vital role of chloroplast, in Arabidopsis, Paul et al [66] examined chloroplast morphology, and proteome composition under single and repetitive heat stress periods, prolonged till two weeks. They depicted that in a single heat stress condition a significant alteration was observed compared to repetitive ones, where adaptive behavior was noticed.…”

Section: Heat Stressmentioning

confidence: 99%

The Role of Membrane Transporters in Plant Growth and Development, and Abiotic Stress Tolerance

Gill¹,

Ahmar²,

Ali³

et al. 2021

Preprint

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Membrane transporters (MTs) are mainly localized at the plasma membrane (PM), tonoplast and vacuolar membrane (VM) of cells in all plant organs. Their work is to maintain the cellular homeostasis by controlling ionic movements across PM channels from roots to upper plant parts, xylem loading and remobilization of sugar molecules from photosynthesis tissues in the leaf (source) to roots, stem and seeds (sink) via phloem loading. The plant’s whole source-to-sink relationship is regulated by multiple transporting proteins in a highly sophisticated manner and driven based on different stages of plant growth and development (PG&D), and environmental changes. The MTs play a pivotal role in PG&D in terms of increased plant height, branches/tiller numbers, enhanced numbers, length and filled panicles per plant, seed yield and grain quality. Dynamic climatic changes disturbed the ionic balance (salt, drought and heavy metals) and sugar supply (cold and heat stress). Due to poor selectivity, some of the MTs also uptake toxic elements in the roots that negatively impact on PG&D, later on also exported to upper parts and then deteriorate the grain quality. As an adaptive strategy, in response to salt and HMs plants activated PM and VM localized MTs that export toxic elements into vacuole, and also translocate in the root’s tips and shoot. However, in case of drought, cold and heat stresses, MTs increased the water and sugar supply to all organs. In this review, we mainly reviewed recent literature from Arabidopsis, halophytes, and major field crops such as rice, wheat, maize and oilseed rape to argue on the global role of MTs in PG&D and abiotic stress tolerance. We also discussed the gene expression level changes and genomic variations within a species as well as within a family in response to developmental and environmental cues.

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Structural and Functional Heat Stress Responses of Chloroplasts of Arabidopsis thaliana

Cited by 20 publications

References 97 publications

Ethylene involvement in the regulation of heat stress tolerance in plants

Ethylene involvement in the regulation of heat stress tolerance in plants

The Role of Membrane Transporters in Plant Growth and Development, and Abiotic Stress Tolerance

The Role of Membrane Transporters in Plant Growth and Development, and Abiotic Stress Tolerance

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