Thylakoid proteome variation of Eutrema salsugineum in response to drought and salinity combined stress

Goussi, Rahma; Manfredi, Marcello; Marengo, Emílio; Derbali, Walid; Cantamessa, Simone; Barbato, Roberto; Manaa, Arafet

doi:10.1016/j.bbabio.2021.148482

Cited by 8 publications

(12 citation statements)

References 72 publications

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“…After shading treatment, the V I of S increased, S m decreased, the proportion of slow reducing PQ pool increased, PQ pool became smaller, and the electrons transferred to PSI were blocked, and the residual excitation energy might damage the two photosystems. The increase of fluorescent I‐P and DIo/CSo compared with CK also demonstrated the above point of view, leaf solved the problem of the imbalance of the number of electrons at the donor end and acceptor end of PSII by increasing fluorescence dissipation and heat dissipation, which was similar to the change result of drought and salt combined stress on Eutrema Salsugineum (Goussi et al, 2021). Schansker et al (2005) used a simplified energy flux model to describe the direction of energy transfer in the electron transport chain, including absorption flux (ABS), trapping flux (TR), electron transport flux (ET) and heat dissipation flux (DI).…”

Section: Discussionmentioning

confidence: 54%

Responses of the photosynthetic characteristics of summer maize to shading stress

Sun

Geng

Ren

et al. 2023

J Agronomy Crop Science

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The vast majority of the energy and substance required for maize growth and development and related metabolic processes come from the photosynthesis of leaves.Over the past 60 years, the amount of solar radiation reaching the earth's surface has decreased significantly, reducing the photosynthetic rate of crops and leading to a significant reduction in yields. However, (1) the effects of shading stress on stomatal characteristics, electron transport efficiency of summer maize leaves and (2) the adaptability of summer maize to low light are still unclear. In order to investigate this problems, maize hybrid Denghai605 (DH605) was used as the experimental materials, and two treatments of shading (shading degree is 60%) and CK (natural light as control) were set in the field. The results showed that shading stress resulted in chloroplast dysplasia, and the overall performance of the two photosystems was reduced by 27.85%. The number of stomata per unit area decreased by 15.6% and the proportion of stomatal opening decreased by 73.1% after shading, which resulted in a significant 27.7% reduction in intercellular CO 2 concentration. Shading significantly reduced photosynthetic rate by affecting stomatal characteristics and electron transport, and the former was the main influencing factor. The decrease in carbon assimilation capacity resulted in insufficient assimilate supply and significantly reduced grain allocation ratio, resulting in a significant yield reduction of 57.5%. However, in the low-light environment, the expression of chlorophyll-binding protein in the leaf of summer maize was upregulated, the content of Lhcb1 protein of the light harvesting pigment protein complex II (LHCII) was increased, and the content of photosynthetic pigment, especially chlorophyll b, was increased, which increased the absorption and capture of blue light, improved the efficiency of light energy utilization, and was a stress manifestation of summer maize adapting to shading stress.

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Section: Discussionmentioning

confidence: 54%

Responses of the photosynthetic characteristics of summer maize to shading stress

Sun

Geng

Ren

et al. 2023

J Agronomy Crop Science

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“…Carbon or carbohydrate metabolism occurs in the chloroplast, mitochondria, and cytosol of plant cells via the Calvin cycle, pentose phosphate pathway, glycolysis, and Krebs cycle (Barkla et al, 2013b;Taiz et al, 2015). Therefore, salt stress downregulates or upregulates several proteins associated with these metabolic pathways, as observed in rice (Nam et al, 2012;Liu et al, 2014), sorghum (Ngara et al, 2012), alfalfa (Xiong et al, 2017), canola (Iqbal et al, 2019), chickpea (Arefian et al, 2019) and Eutrema salsugineum (Goussi et al, 2021). Several studies have reported that salt stress reduces proteins related to chlorophyll biosynthesis, but increases thylakoidal proteins related to the light reaction (Barkla et al, 2013b; and references there in).…”

Section: Salt Stress Proteins Involved In Photosynthesis and Carbohyd...mentioning

confidence: 95%

“…In contrast, Xiong et al (2017) reported the downregulation of thylakoidal proteins carrying out light reactions, such as chlorophyll a/b proteins, cytochrome b6-f complex, and OEE proteins, salt-stressed alfalfa. While working Eutrema salsugineum Goussi et al (2021) found changes in abundance of 58 proteins related with thylakoidal reactions. The major changes occurred in core protein of PSII (D1, D2, CP43, CP47, PsbE and PsbH), whereas changes in subunits of oxygen evolving complex and cytochrome b6-f complex remained constant.…”

Section: Salt Stress Proteins Involved In Photosynthesis and Carbohyd...mentioning

confidence: 99%

“…Different cellular organelles possess different types of proteins that play various roles in metabolism (Jacoby et al, 2011;Bose et al, 2017;Luo et al, 2017;Goussi et al, 2021). For example, chloroplasts contain a myriad of proteins (e.g., thylakoidal photosystem II, cytochrome b6-f complex, ironsulfur proteins, oxygen-evolving enhancer proteins (OEE), photosystems-I, ATP synthase) and stromal proteins (e.g., ribulose-1,5-bisphosphate carboxylase (rubisco) and fructosebisphosphate aldolase (pFBA)) (Meng et al, 2016a;Xu et al, 2016;Yousuf et al, 2016;Suo et al, 2017) that are integral parts of key metabolic processes.…”

Section: Introductionmentioning

confidence: 99%

“…For example, chloroplasts contain a myriad of proteins (e.g., thylakoidal photosystem II, cytochrome b6-f complex, ironsulfur proteins, oxygen-evolving enhancer proteins (OEE), photosystems-I, ATP synthase) and stromal proteins (e.g., ribulose-1,5-bisphosphate carboxylase (rubisco) and fructosebisphosphate aldolase (pFBA)) (Meng et al, 2016a;Xu et al, 2016;Yousuf et al, 2016;Suo et al, 2017) that are integral parts of key metabolic processes. Similarly, various proteins have been identified in mitochondria under salt stress, including Mnsuperoxide dismutase (Mn-SOD) and oxidase (AOX) (Jacoby et al, 2011;Wojtyla et al, 2013;Che-Othman et al, 2017;Goussi et al, 2021). Likewise, vacuoles play a vital role in maintaining ion homeostasis, osmotic adjustment, and cell turgor under salt stress (Barkla et al, 2009;Barkla et al, 2013a;Barkla et al, 2013b).…”

Section: Introductionmentioning

confidence: 99%

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Salt stress proteins in plants: An overview

et al. 2022

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Salinity stress is considered the most devastating abiotic stress for crop productivity. Accumulating different types of soluble proteins has evolved as a vital strategy that plays a central regulatory role in the growth and development of plants subjected to salt stress. In the last two decades, efforts have been undertaken to critically examine the genome structure and functions of the transcriptome in plants subjected to salinity stress. Although genomics and transcriptomics studies indicate physiological and biochemical alterations in plants, it do not reflect changes in the amount and type of proteins corresponding to gene expression at the transcriptome level. In addition, proteins are a more reliable determinant of salt tolerance than simple gene expression as they play major roles in shaping physiological traits in salt-tolerant phenotypes. However, little information is available on salt stress-responsive proteins and their possible modes of action in conferring salinity stress tolerance. In addition, a complete proteome profile under normal or stress conditions has not been established yet for any model plant species. Similarly, a complete set of low abundant and key stress regulatory proteins in plants has not been identified. Furthermore, insufficient information on post-translational modifications in salt stress regulatory proteins is available. Therefore, in recent past, studies focused on exploring changes in protein expression under salt stress, which will complement genomic, transcriptomic, and physiological studies in understanding mechanism of salt tolerance in plants. This review focused on recent studies on proteome profiling in plants subjected to salinity stress, and provide synthesis of updated literature about how salinity regulates various salt stress proteins involved in the plant salt tolerance mechanism. This review also highlights the recent reports on regulation of salt stress proteins using transgenic approaches with enhanced salt stress tolerance in crops.

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Exploring Regulatory Roles of Plant Thylakoid-Bound Proteins Involved in Abiotic Stress Responses

Billah,

Aktar,

Sikder

et al. 2024

J Plant Growth Regul

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Thylakoid proteome variation of Eutrema salsugineum in response to drought and salinity combined stress

Cited by 8 publications

References 72 publications

Responses of the photosynthetic characteristics of summer maize to shading stress

Responses of the photosynthetic characteristics of summer maize to shading stress

Salt stress proteins in plants: An overview

Exploring Regulatory Roles of Plant Thylakoid-Bound Proteins Involved in Abiotic Stress Responses

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