Tracheary Element Structure of Some Gymnosperms with Angiosperms: A Comparative Study

This stage bestowed approximate studies of ship types and makeup in some gymnosperms and angiosperms. The tissues of the tuft of bird and vertebral column of Cycas diannaensis and tuft of bird, backbone, and root of Cycas taiwaniana, vertebral column of Cycas szechuanensis, stem of Metasequoia glyptostroboides (Taxodiaceae), stems of Chamaecyparis obtusa ( Zucc.) Endl cv. Tetragona (Cupressaceae), and leaves and stems of Michelia alba and Michelia figo and stems of Amygdalus persica (angiosperms) were distinguished utilizing flipping through power microscopy.All of these gymnosperm species have perforations finally divider and sideways divider of their many tracheary parts. Certain tracheary parts are bowls cause they have these structural correspondences accompanying angiosperm bowls. Cycads have a type of ship types, containing spiral and opposed ships in Chamaecyparis obtusa cv. Tetragona, and opposed vessels in M. glyptostroboides. Cycads, the added two gymnosperms, and the angiosperms all have alike container happening and fundamental characteristics. Some traits, to a degree in consideration of incline of the perforated plate finally divider, illustrated that few angiosperms had more undeveloped container traits than cycads or M. glyptostroboides and C. obtusa cv. Tetragona or glyptostroboides. Numerous of the angiosperms’ container items were band-shaped, had abundant divider, only two sideways obstruction, and two borders. The ends of few of these container fundamentals are severe with no perforations, while many perforations are only in the direction of the sideways divider.In all variety, parenchyma container divider bewitched only a thin basic divider and no perforations, with the exception of tracheae.

Author(s) Details:

Yuyuan Huang,
College of Life Sciences, Zhongkai University of Agriculture and Engineering, Guangzhou, China and Agricultural College, Guangxi University, Nanning, China.

Yanhua Han,
College of Life Sciences, Zhongkai University of Agriculture and Engineering, Guangzhou, China.

Lijun Wei,
Agricultural College, Guangxi University, Nanning, China.

Jiazhuo Wang,
Guangxi Subtropical Institute of Crops, Nanning, China.

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Keywords: Adaptability, gymnosperm, angiosperm, evolution, vessel, structural characteristics

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