Calcium Signaling in Plant Programmed Cell Death

Ren, Haiyun; Zhao, Xiaohong; Li, Wenjie; Hussain, Jamshaid; Gao, Qi; Liu, Shenkui

doi:10.3390/cells10051089

Cited by 49 publications

(19 citation statements)

References 161 publications

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“…In this study, there was a large number of amyloplasts in the pulp cells of apples with bitter pit undergoing PCD at the same time. Ca 2+ concentration increases in the early stage of post-harvest physiological deterioration of cassava storage roots, thereby causing PCD ( Ren et al, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

Accumulation of Abnormal Amyloplasts in Pulp Cells Induces Bitter Pit in Malus domestica

Qiu

Wang

et al. 2021

Front. Plant Sci.

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Apple bitter pit primarily occurs during fruit ripening and storage; however, its formation mechanism remains unclear. Although it is considered that Ca2+ deficiency causes metabolic disorders in apples, there have been few studies on the mechanism of the bitter pit from the perspective of cell structure. At the fruit ripening stage, the fruit with a bitter pit on the tree was taken as the research material. In this study, the microscopic observation revealed numerous amyloplasts in the pulp cells of apples affected with bitter pit, but not in the healthy pulp. Furthermore, the results of fluorescence staining and transmission electron microscopy (TEM) revealed that the bitter pit pulp cells undergo programmed cell death (PCD), their nuclear chromosomes condense, and amyloplast forms autophagy. The cytoplasmic Ca2+ concentration in the healthy fruits was lowest near the peduncle, followed by that in the calyx, whereas it was highest at the equator. In contrast, the cytoplasmic Ca2+ concentration in apple fruits showing bitter pit disorder was lowest near the peduncle and highest in the calyx. Moreover, the cytosolic Ca2+ concentration in the flesh cells of apples with the bitter pit was much lower than that in the healthy apple flesh cells; however, the concentration of Ca2+ in the vacuoles of fruits with the bitter pit was higher than that in the vacuoles of healthy fruits. In summary, bitter pit pulp cells contain a large number of amyloplasts, which disrupts the distribution of Ca2+ in the pulp cells and causes PCD. These two processes lead to an imbalance in cell metabolism and induce the formation of a bitter pit.

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Section: Discussionmentioning

confidence: 99%

Accumulation of Abnormal Amyloplasts in Pulp Cells Induces Bitter Pit in Malus domestica

Qiu

Wang

et al. 2021

Front. Plant Sci.

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“…Ca 2+ is a universal and indispensable signaling ion used by all eukaryotes. 74–77 In tumor cells, Ca 2+ regulates cellular activities and impact tumor progression including proliferation, metabolism, migration, epithelial–mesenchymal transition (EMT), and apoptosis. 78–82 Emerging studies have demonstrated that Ca 2+ signaling in cancer cells is affected by various mechanical stimuli including cyclic stretch, 83 local membrane traction, 84 fluid shear, 85,86 and compression.…”

Section: Mechanotransduction In Cancermentioning

confidence: 99%

Towards an integrative understanding of cancer mechanobiology: calcium, YAP, and microRNA under biophysical forces

Liang

Huang

et al. 2022

Soft Matter

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“…Furthermore, NO, a negative chemoattractant of pollen tube guidance, together with ROS, a positive regulator of tip growth, were shown to be required for the pollen tube elongation to the right direction [ 19 , 20 ]. These findings, together with multitasked feature of ROS, Ca 2+ , and NO [ 2 , 21 , 22 , 23 , 24 ], suggest that these signaling molecules might govern the reproductive development by regulating various other pathways.…”

Section: Introductionmentioning

confidence: 99%

Links between Regulatory Systems of ROS and Carbohydrates in Reproductive Development

Kiyono

Katano

Suzuki

2021

Plants

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To thrive on the earth, highly sophisticated systems to finely control reproductive development have been evolved in plants. In addition, deciphering the mechanisms underlying the reproductive development has been considered as a main research avenue because it leads to the improvement of the crop yields to fulfill the huge demand of foods for the growing world population. Numerous studies revealed the significance of ROS regulatory systems and carbohydrate transports and metabolisms in the regulation of various processes of reproductive development. However, it is poorly understood how these mechanisms function together in reproductive tissues. In this review, we discuss mode of coordination and integration between ROS regulatory systems and carbohydrate transports and metabolisms underlying reproductive development based on the hitherto findings. We then propose three mechanisms as key players that integrate ROS and carbohydrate regulatory systems. These include ROS-dependent programmed cell death (PCD), mitochondrial and respiratory metabolisms as sources of ROS and energy, and functions of arabinogalactan proteins (AGPs). It is likely that these key mechanisms govern the various signals involved in the sequential events required for proper seed production.

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Calcium Signaling in Plant Programmed Cell Death

Cited by 49 publications

References 161 publications

Accumulation of Abnormal Amyloplasts in Pulp Cells Induces Bitter Pit in Malus domestica

Accumulation of Abnormal Amyloplasts in Pulp Cells Induces Bitter Pit in Malus domestica

Towards an integrative understanding of cancer mechanobiology: calcium, YAP, and microRNA under biophysical forces

Links between Regulatory Systems of ROS and Carbohydrates in Reproductive Development

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