@Article{phyton.2021.015617,
AUTHOR = {Xinru He, Qiong Ding, Bing Sun, Yongjun Fei, Die Hu},
TITLE = {Comparison of Morphological and Anatomical Characteristics of Taxus chinensis var. mairei Seedlings Root under Waterlogging Stress in Different Substrates},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {90},
YEAR = {2021},
NUMBER = {6},
PAGES = {1673--1684},
URL = {http://www.techscience.com/phyton/v90n6/43021},
ISSN = {1851-5657},
ABSTRACT = {Four different ratios of river sand, ceramic pellets, vermiculite and perlite (1:1), and field soil were selected as the
substrates in this experiment, and four gradient levels of root waterlogging, half waterlogging, full waterlogging
and normal were set to investigate the effects of different gradients of waterlogging stress on the root morphology
of Taxus chinensis var. mairei seedlings under different substrates. In this study, the root anatomical structure of
Taxus chinensis var. mairei under different waterlogging stress was observed by the paraffin section method. The
roots of T. chinensis var. mairei were diarch, with no pith and resin canals. There was a large number of tannins in
the pericycle of the aerial adventitious roots of seedlings adapted to waterlogging. Also, the endodermis has
obvious casparian strip thickening, and there were 4-5 layers of large parenchymatous cells in the close to the
inner side of the pericycle in the vascular cylinder, which could increase the storage capacity, and transport capacity of the root. Under the treatment of root waterlogging stress, the development of plant roots in the mixed
substrate of vermiculite and, perlite was the earliest. Under half waterlogging stress, T. chinensis var. mairei seedlings treated with various substrates all could better adapt to the environment of waterlogging stress. Under the
stress of fully waterlogging, the roots of seedlings planted in river sand substrate developed secondary growth.},
DOI = {10.32604/phyton.2021.015617}
}