The Relationship between Terminal Bud Death and Programmed Cell Death in Paulownia spp.
Wang Yanmei1, Ma Tianxiao1, 2, Liu Zhen1
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1Forestry Department, Henan Agricultural University,
Nongye Road NO.63, Zhengzhou 450002, People’s Republic of China
2Huanghe University of Science and Technology,
Zijingshan Road No.666, Zhengzhou 450000, People’s Republic of China
Online publish date: 2018-02-05
Publish date: 2018-03-12
Submission date: 2017-07-01
Final revision date: 2017-08-05
Acceptance date: 2017-08-06
Pol. J. Environ. Stud. 2018;27(3):1413–1417
To investigate the reasons for terminal bud death, the relationship between terminal bud death and programmed cell death in Paulownia was studied using morphocytology and DNA ladder techniques with one-year-old seedlings of Paulownia spp. The results showed that there were no characteristic morphological changes of the chromatin/chromosomes or nucleus, such as chromatin condensation, nuclear shrinkage, distortion, or degradation after DAPI (4’,6-diamidino-2-phenylindo-le) staining, and DNA laddering was not found in cells after agarose gel electrophoresis. Preliminarily results suggest that the terminal bud death of Paulownia spp. is not clearly related to programmed cell death.