Unraveling the importance of EF-hand-mediated calcium signaling in plants

Kundu, Punam; Nehra, Ashima; Gill, Ritu; Tuteja, Narendra; Gill, Sarvajeet Singh

doi:10.1016/j.sajb.2022.04.045

Cited by 17 publications

(6 citation statements)

References 242 publications

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“…In the case of the MPT cultivar, the transition from the immature to intermediate stage ( Figure 3 F,G) was associated with an accumulation of proteins involved in development, for example, the calcium-binding EF-hand protein family (CbEF), a biological switch that regulates signal transduction by Ca 2+ and controls cell growth and plant development [ 40 ]. Similarly, there was an accumulation of proteases, like carboxypeptidases, that supply nitrogen.…”

Section: Discussionmentioning

confidence: 99%

Proteome Landscape during Ripening of Solid Endosperm from Two Different Coconut Cultivars Reveals Contrasting Carbohydrate and Fatty Acid Metabolic Pathway Modulation

Félix

Granados-Alegría

Gómez-Tah

et al. 2023

IJMS

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Cocos nucifera L. is a crop grown in the humid tropics. It is grouped into two classes of varieties: dwarf and tall; regardless of the variety, the endosperm of the coconut accumulates carbohydrates in the early stages of maturation and fatty acids in the later stages, although the biochemical factors that determine such behavior remain unknown. We used tandem mass tagging with synchronous precursor selection (TMT-SPS-MS3) to analyze the proteomes of solid endosperms from Yucatan green dwarf (YGD) and Mexican pacific tall (MPT) coconut cultivars. The analysis was conducted at immature, intermediate, and mature development stages to better understand the regulation of carbohydrate and lipid metabolisms. Proteomic analyses showed 244 proteins in YGD and 347 in MPT; from these, 155 proteins were shared between both cultivars. Furthermore, the proteomes related to glycolysis, photosynthesis, and gluconeogenesis, and those associated with the biosynthesis and elongation of fatty acids, were up-accumulated in the solid endosperm of MPT, while in YGD, they were down-accumulated. These results support that carbohydrate and fatty acid metabolisms differ among the developmental stages of the solid endosperm and between the dwarf and tall cultivars. This is the first proteomics study comparing different stages of maturity in two contrasting coconut cultivars and may help in understanding the maturity process in other palms.

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Section: Discussionmentioning

confidence: 99%

Proteome Landscape during Ripening of Solid Endosperm from Two Different Coconut Cultivars Reveals Contrasting Carbohydrate and Fatty Acid Metabolic Pathway Modulation

Félix

Granados-Alegría

Gómez-Tah

et al. 2023

IJMS

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“…The EF-hand motif in CaM is characterized by a helix–loop–helix (D-X-D) conformation, consisting of 12 amino acid residues, totaling 36 amino acid residues across both motifs. In the D-X-D motif, the 14th and 16th positions are fixed, while the 15th position can be occupied by any amino acid [ 85 ]. These motifs are involved in interactions with a diverse array of downstream target proteins, including ion channels, pumps, antiporters, kinases, phosphatases, transcription factors, and enzymes involved in metabolic pathways.…”

Section: Ca 2+ -Binding Protein Involvement In The...mentioning

confidence: 99%

Calcium Signaling and the Response to Heat Shock in Crop Plants

Kang,

Zhao,

Liu

2023

IJMS

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Climate change and the increasing frequency of high temperature (HT) events are significant threats to global crop yields. To address this, a comprehensive understanding of how plants respond to heat shock (HS) is essential. Signaling pathways involving calcium (Ca2+), a versatile second messenger in plants, encode information through temporal and spatial variations in ion concentration. Ca2+ is detected by Ca2+-sensing effectors, including channels and binding proteins, which trigger specific cellular responses. At elevated temperatures, the cytosolic concentration of Ca2+ in plant cells increases rapidly, making Ca2+ signals the earliest response to HS. In this review, we discuss the crucial role of Ca2+ signaling in raising plant thermotolerance, and we explore its multifaceted contributions to various aspects of the plant HS response (HSR).

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“…Calcineurin B-like proteins (CBLs) are a family of Ca 2+ sensor proteins present in plants that bind Ca 2+ through EF-hand motifs (see Figure 2 ) [ 91 , 92 , 93 ]. The CBL family is unique as well.…”

Section: Calcium Binding Proteins (Cbps)mentioning

confidence: 99%

Calcium Signaling in Plant-Insect Interactions

Parmagnani

Maffei

2022

Plants

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In plant–insect interactions, calcium (Ca2+) variations are among the earliest events associated with the plant perception of biotic stress. Upon herbivory, Ca2+ waves travel long distances to transmit and convert the local signal to a systemic defense program. Reactive oxygen species (ROS), Ca2+ and electrical signaling are interlinked to form a network supporting rapid signal transmission, whereas the Ca2+ message is decoded and relayed by Ca2+-binding proteins (including calmodulin, Ca2+-dependent protein kinases, annexins and calcineurin B-like proteins). Monitoring the generation of Ca2+ signals at the whole plant or cell level and their long-distance propagation during biotic interactions requires innovative imaging techniques based on sensitive sensors and using genetically encoded indicators. This review summarizes the recent advances in Ca2+ signaling upon herbivory and reviews the most recent Ca2+ imaging techniques and methods.

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Unraveling the importance of EF-hand-mediated calcium signaling in plants

Cited by 17 publications

References 242 publications

Proteome Landscape during Ripening of Solid Endosperm from Two Different Coconut Cultivars Reveals Contrasting Carbohydrate and Fatty Acid Metabolic Pathway Modulation

Proteome Landscape during Ripening of Solid Endosperm from Two Different Coconut Cultivars Reveals Contrasting Carbohydrate and Fatty Acid Metabolic Pathway Modulation

Calcium Signaling and the Response to Heat Shock in Crop Plants

Calcium Signaling in Plant-Insect Interactions

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