Aerenchyma formation in the root of leaf‐vegetable sweet potato: programmed cell death initiated by ethylene‐mediated H 2 O 2 accumulation

2021 ◽  
Author(s):  
Rui Pan ◽  
Hui Han ◽  
Milca Banda Medison ◽  
Salah Fatouh Abou‐Elwafa ◽  
Yi Liu ◽  
...  
Keyword(s):  
Cell Death ◽  
Programmed Cell Death ◽  
Sweet Potato ◽  
Aerenchyma Formation ◽  
Leaf Vegetable

scholarly journals Programmed Cell Death and Aerenchyma Formation in Water-Logged Sunflower Stems and Its Promotion by Ethylene and ROS

2019 ◽  
Vol 9 ◽  
Author(s):  
Xi-Lu Ni ◽  
Meng-Yuan Gui ◽  
Ling-Ling Tan ◽  
Qiang Zhu ◽  
Wen-Zhe Liu ◽  
...  
Keyword(s):  
Cell Death ◽  
Programmed Cell Death ◽  
Aerenchyma Formation

Ethylene and programmed cell death in plants

Botany ◽  
2009 ◽  
Vol 87 (8) ◽  
pp. 757-769 ◽  
Author(s):  
Christopher P. Trobacher
Keyword(s):  
Signal Transduction ◽  
Cell Death ◽  
Programmed Cell Death ◽  
Adventitious Roots ◽  
Future Research ◽  
Aerenchyma Formation ◽  
Gaseous Hydrocarbon ◽  
Reproductive Structures ◽  
Ethylene Signalling ◽  
Ethylene Signal

Plants produce and utilize the gaseous hydrocarbon ethylene as a phytohormone throughout their life cycle. Ethylene is notoriously associated with fruit ripening and this aspect of its biology, along with its biosynthesis and mechanisms of signal transduction, has received a great deal of study. Many plants also employ ethylene signalling during instances of programmed cell death (PCD), including aerenchyma formation, epidermal PCD above emerging adventitious roots, senescence of petals, leaves, and reproductive structures, and endosperm death in developing cereal seeds. Ethylene-signalling during PCD is both spatially and temporally regulated, and is selective in that it induces PCD only in sensitized cells or tissues. This review examines instances of ethylene-regulated plant PCD, proposes a general model, and suggests avenues for future research that might improve our understanding of both PCD and ethylene signal transduction.

Programmed cell death during aerenchyma formation in Typha angustifolia leaves

2014 ◽  
Vol 113 ◽  
pp. 8-18 ◽  
Author(s):  
Xi-Lu Ni ◽  
Ying Meng ◽  
Shuang-Shuang Zheng ◽  
Wen-Zhe Liu
Keyword(s):  
Cell Death ◽  
Programmed Cell Death ◽  
Typha Angustifolia ◽  
Aerenchyma Formation

Characterisation of programmed cell death during aerenchyma formation induced by ethylene or hypoxia in roots of maize( Zea mays L.)

Planta ◽  
2001 ◽  
Vol 212 (2) ◽  
pp. 205-214 ◽  
Author(s):  
Arunika H. L. A. N. Gunawardena ◽  
Deborah M. Pearce ◽  
Michael B. Jackson ◽  
Chris R. Hawes ◽  
David E. Evans
Keyword(s):  
Cell Death ◽  
Zea Mays ◽  
Programmed Cell Death ◽  
Zea Mays L ◽  
Aerenchyma Formation

Aerenchyma formation: programmed cell death in adventitious roots of winter wheat (Triticum aestivum) under waterlogging

2010 ◽  
Vol 37 (8) ◽  
pp. 748 ◽  
Author(s):  
Zhen Jiang ◽  
Xue-Fang Song ◽  
Zhu-Qing Zhou ◽  
Li-Kai Wang ◽  
Ji-Wei Li ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Cell Death ◽  
Plasma Membrane ◽  
Programmed Cell Death ◽  
Chromatin Condensation ◽  
Cortical Cell ◽  
Triticum Aestivum L ◽  
Morphological Development ◽  
Acid Phosphatases ◽  
Aerenchyma Formation

This study determined the characteristics of cortical cell death in wheat (Triticum aestivum L.) roots during programmed cell death (PCD) and the relationship between PCD and acid phosphatases. An examination of morphological development by light microscrope revealed that aerenchyma formed in roots waterlogged for 24 h and well developed aerenchyma formed in roots waterlogged for 120 h. The first detectable events were observed by electron microscopy and included plasma membrane invagination and the appearance of vesicles between the plasma membrane and the cell wall. Later, chromatin condensation and double-membrane-bound structures resembling autophagosomes were observed. The activity of acid phosphatases gradually increased during waterlogging and was present during the entire process of cell death. These observations suggest that cortical cell death during aerenchyma formation induced by waterlogging was a form of PCD. Acid phosphatases play an important role in PCD induced by waterlogging, being responsible for the hydrolysis of cell components at the later stages of PCD.

scholarly journals Plant Cell Cultures as a Tool to Study Programmed Cell Death

2021 ◽  
Vol 22 (4) ◽  
pp. 2166
Author(s):  
Massimo Malerba ◽  
Raffaella Cerana
Keyword(s):  
Cell Death ◽  
Programmed Cell Death ◽  
Plant Cell ◽  
Cell Cultures ◽  
Cultured Cells ◽  
Defense Responses ◽  
Plant Cell Cultures ◽  
Aerenchyma Formation ◽  
Biotic Stresses ◽  
Whole Plant

Programmed cell death (PCD) is a genetically controlled suicide process present in all living beings with the scope of eliminating cells unnecessary or detrimental for the proper development of the organism. In plants, PCD plays a pivotal role in many developmental processes such as sex determination, senescence, and aerenchyma formation and is involved in the defense responses against abiotic and biotic stresses. Thus, its study is a main goal for plant scientists. However, since PCD often occurs in a small group of inaccessible cells buried in a bulk of surrounding uninvolved cells, its study in whole plant or complex tissues is very difficult. Due to their uniformity, accessibility, and reproducibility of application of stress conditions, cultured cells appear a useful tool to investigate the different aspects of plant PCD. In this review, we summarize how plant cell cultures can be utilized to clarify the plant PCD process.

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