Programmed cell death in wheat (Triticum aestivum L.) endosperm cells is affected by drought stress

PROTOPLASMA ◽  
2018 ◽  
Vol 255 (4) ◽  
pp. 1039-1052 ◽  
Author(s):  
Chao Li ◽  
Cheng Li ◽  
Bingbing Wang ◽  
Runqi Zhang ◽  
Kaiyong Fu ◽  
...  
PROTOPLASMA ◽  
2008 ◽  
Vol 234 (1-4) ◽  
pp. 87-96 ◽  
Author(s):  
Likai Wang ◽  
Zhuqing Zhou ◽  
Xuefang Song ◽  
Jiwei Li ◽  
Xiangyi Deng ◽  
...  

PROTOPLASMA ◽  
2015 ◽  
Vol 253 (2) ◽  
pp. 311-327 ◽  
Author(s):  
Xiang-Xu Cheng ◽  
Min Yu ◽  
Nan Zhang ◽  
Zhu-Qing Zhou ◽  
Qiu-Tao Xu ◽  
...  

PROTOPLASMA ◽  
2009 ◽  
Vol 236 (1-4) ◽  
pp. 49-58 ◽  
Author(s):  
Zhuqing Zhou ◽  
Likai Wang ◽  
Jiwei Li ◽  
Xuefang Song ◽  
Chaonan Yang

PROTOPLASMA ◽  
2018 ◽  
Vol 255 (6) ◽  
pp. 1651-1665 ◽  
Author(s):  
Yuan-Hong Qi ◽  
Fang-Fang Mao ◽  
Zhu-Qing Zhou ◽  
Dong-Cheng Liu ◽  
Min-Yu ◽  
...  

2010 ◽  
Vol 37 (8) ◽  
pp. 748 ◽  
Author(s):  
Zhen Jiang ◽  
Xue-Fang Song ◽  
Zhu-Qing Zhou ◽  
Li-Kai Wang ◽  
Ji-Wei Li ◽  
...  

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.


PROTOPLASMA ◽  
2013 ◽  
Vol 250 (5) ◽  
pp. 1091-1103 ◽  
Author(s):  
Hai-Yan Fan ◽  
Zhu-Qing Zhou ◽  
Chao-Nan Yang ◽  
Zhen Jiang ◽  
Jin-Tao Li ◽  
...  

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Wedad A. Kasim ◽  
Mohamed E. H. Osman ◽  
Mohamed N. Omar ◽  
Samar Salama

Abstract Background The effectiveness of two PGPB; Azospirillum brasilense NO40 and Stenotrophomonas maltophilia B11 was investigated in enhancing the drought tolerance of wheat (Triticum aestivum L.) seedlings cultivar Gemiza9. The inoculated or uninoculated grains were sown in unsterilized sandy soil and watered normally untill the 8th day. Drought stress was initiated by completely withholding water for 7 days (until wilting). Samples were collected after 15 days from sowing to evaluate some growth criteria, damage and defense indicators and to analyze the roots’ protein pattern. Results The results showed that inoculating wheat seedlings with these strains significantly diminished the inhibitory effects of drought stress on the relative water content of roots, shoots and leaves; area of leaves; contents of pigments (chlorophyll a and b) and ascorbic acid; and on the protein patterns of roots. Moreover, the bacterial inoculation notably reduced the drought-induced damage indicated by lower leakage of electrolytes and less accumulation of Malondialdehyde and hydrogen peroxide, surprisingly with less enhanced production of proline and activities of catalase and peroxidase than their uninoculated counterparts. Under normal conditions, inoculating wheat plants with these PGPB resulted in significantly promoted growth and elevated contents of pigments and altered protein patterns of roots. Conclusion Overall, we can say that both Azospirillum brasilense NO40 and Stenotrophomonas maltophilia B11 were able to deactivate the growth inhibition in wheat seedlings to some extent, while maintaining a certain level of efficient protection against damage under drought stress.


Author(s):  
Rajeev Kumar ◽  
Harikrishna ◽  
Dipankar Barman ◽  
Om P. Ghimire ◽  
S. Gurumurthy ◽  
...  

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